Automatic measurement and analysis of kinetics for photocatalytic reactions in continuous microflow
As photocatalysis has been demonstrated to be a powerful tool for chemical synthesis over the last decades, it is essential to acquire reaction kinetics and kinetic model for the implementation of photocatalytic reactions. However, traditional kinetic study for photocatalytic reactions has problems...
Ausführliche Beschreibung
Autor*in: |
Li, Jian [verfasserIn] Zhao, Fang [verfasserIn] Fan, Wenting [verfasserIn] Chen, Ming [verfasserIn] Guo, Xuhong [verfasserIn] |
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Format: |
E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2022 |
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Schlagwörter: |
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Übergeordnetes Werk: |
Enthalten in: The chemical engineering journal - Amsterdam : Elsevier, 1997, 447 |
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Übergeordnetes Werk: |
volume:447 |
DOI / URN: |
10.1016/j.cej.2022.137546 |
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Katalog-ID: |
ELV008133964 |
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520 | |a As photocatalysis has been demonstrated to be a powerful tool for chemical synthesis over the last decades, it is essential to acquire reaction kinetics and kinetic model for the implementation of photocatalytic reactions. However, traditional kinetic study for photocatalytic reactions has problems including low accuracy, repeatability and efficiency in measurement, and difficulty in controlling the reaction conditions. Herein, we report an automatic continuous microflow platform for kinetics measurement and analysis of homogeneous photocatalytic reactions, with accurate control of reaction conditions (species concentrations, light intensity and residence time), efficient online measurement and sophisticated data analysis. Via the automatic platform, the rate law for the homogeneous photocatalysis of 9,10-diphenylanthracene (DPA) was acquired by investigating 70 different reaction conditions in 14 h, from which the reaction orders with respect to light intensity, photocatalyst concentration and substrate concentration were determined as 0.62, 0.82 and 1.00, respectively. Subsequently, a reaction rate constant independent of species concentration, light intensity and residence time was derived (with a value of 1.00). By doing so, reaction kinetics and the influence of multiple factors manifested in the as-derived rate law in a direct and concise manner. Furtherly, the as-obtained rate law was demonstrated to make good predictions on reaction kinetics, with an average of relative deviations of 3.18%, even for a range of new reaction conditions extending that used to obtain the rate law. The automatic kinetics measurement and analysis platform and the rate law incorporating the influence of multiple factors reported in this work can pave the way towards deeper understanding and faster implementation of homogeneous photocatalytic reactions. | ||
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700 | 1 | |a Zhao, Fang |e verfasserin |4 aut | |
700 | 1 | |a Fan, Wenting |e verfasserin |4 aut | |
700 | 1 | |a Chen, Ming |e verfasserin |4 aut | |
700 | 1 | |a Guo, Xuhong |e verfasserin |4 aut | |
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10.1016/j.cej.2022.137546 doi (DE-627)ELV008133964 (ELSEVIER)S1385-8947(22)03034-0 DE-627 ger DE-627 rda eng 660.05 DE-101 660 DE-101 660 DE-600 58.10 bkl Li, Jian verfasserin aut Automatic measurement and analysis of kinetics for photocatalytic reactions in continuous microflow 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier As photocatalysis has been demonstrated to be a powerful tool for chemical synthesis over the last decades, it is essential to acquire reaction kinetics and kinetic model for the implementation of photocatalytic reactions. However, traditional kinetic study for photocatalytic reactions has problems including low accuracy, repeatability and efficiency in measurement, and difficulty in controlling the reaction conditions. Herein, we report an automatic continuous microflow platform for kinetics measurement and analysis of homogeneous photocatalytic reactions, with accurate control of reaction conditions (species concentrations, light intensity and residence time), efficient online measurement and sophisticated data analysis. Via the automatic platform, the rate law for the homogeneous photocatalysis of 9,10-diphenylanthracene (DPA) was acquired by investigating 70 different reaction conditions in 14 h, from which the reaction orders with respect to light intensity, photocatalyst concentration and substrate concentration were determined as 0.62, 0.82 and 1.00, respectively. Subsequently, a reaction rate constant independent of species concentration, light intensity and residence time was derived (with a value of 1.00). By doing so, reaction kinetics and the influence of multiple factors manifested in the as-derived rate law in a direct and concise manner. Furtherly, the as-obtained rate law was demonstrated to make good predictions on reaction kinetics, with an average of relative deviations of 3.18%, even for a range of new reaction conditions extending that used to obtain the rate law. The automatic kinetics measurement and analysis platform and the rate law incorporating the influence of multiple factors reported in this work can pave the way towards deeper understanding and faster implementation of homogeneous photocatalytic reactions. Homogeneous photocatalytic reaction kinetics Automatic control Continuous microflow Reaction rate equation Photocatalyst concentration Light intensity Zhao, Fang verfasserin aut Fan, Wenting verfasserin aut Chen, Ming verfasserin aut Guo, Xuhong verfasserin aut Enthalten in The chemical engineering journal Amsterdam : Elsevier, 1997 447 Online-Ressource (DE-627)320500322 (DE-600)2012137-4 (DE-576)098330152 1873-3212 nnns volume:447 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 58.10 Verfahrenstechnik: Allgemeines AR 447 045F 660.05 |
spelling |
10.1016/j.cej.2022.137546 doi (DE-627)ELV008133964 (ELSEVIER)S1385-8947(22)03034-0 DE-627 ger DE-627 rda eng 660.05 DE-101 660 DE-101 660 DE-600 58.10 bkl Li, Jian verfasserin aut Automatic measurement and analysis of kinetics for photocatalytic reactions in continuous microflow 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier As photocatalysis has been demonstrated to be a powerful tool for chemical synthesis over the last decades, it is essential to acquire reaction kinetics and kinetic model for the implementation of photocatalytic reactions. However, traditional kinetic study for photocatalytic reactions has problems including low accuracy, repeatability and efficiency in measurement, and difficulty in controlling the reaction conditions. Herein, we report an automatic continuous microflow platform for kinetics measurement and analysis of homogeneous photocatalytic reactions, with accurate control of reaction conditions (species concentrations, light intensity and residence time), efficient online measurement and sophisticated data analysis. Via the automatic platform, the rate law for the homogeneous photocatalysis of 9,10-diphenylanthracene (DPA) was acquired by investigating 70 different reaction conditions in 14 h, from which the reaction orders with respect to light intensity, photocatalyst concentration and substrate concentration were determined as 0.62, 0.82 and 1.00, respectively. Subsequently, a reaction rate constant independent of species concentration, light intensity and residence time was derived (with a value of 1.00). By doing so, reaction kinetics and the influence of multiple factors manifested in the as-derived rate law in a direct and concise manner. Furtherly, the as-obtained rate law was demonstrated to make good predictions on reaction kinetics, with an average of relative deviations of 3.18%, even for a range of new reaction conditions extending that used to obtain the rate law. The automatic kinetics measurement and analysis platform and the rate law incorporating the influence of multiple factors reported in this work can pave the way towards deeper understanding and faster implementation of homogeneous photocatalytic reactions. Homogeneous photocatalytic reaction kinetics Automatic control Continuous microflow Reaction rate equation Photocatalyst concentration Light intensity Zhao, Fang verfasserin aut Fan, Wenting verfasserin aut Chen, Ming verfasserin aut Guo, Xuhong verfasserin aut Enthalten in The chemical engineering journal Amsterdam : Elsevier, 1997 447 Online-Ressource (DE-627)320500322 (DE-600)2012137-4 (DE-576)098330152 1873-3212 nnns volume:447 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 58.10 Verfahrenstechnik: Allgemeines AR 447 045F 660.05 |
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10.1016/j.cej.2022.137546 doi (DE-627)ELV008133964 (ELSEVIER)S1385-8947(22)03034-0 DE-627 ger DE-627 rda eng 660.05 DE-101 660 DE-101 660 DE-600 58.10 bkl Li, Jian verfasserin aut Automatic measurement and analysis of kinetics for photocatalytic reactions in continuous microflow 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier As photocatalysis has been demonstrated to be a powerful tool for chemical synthesis over the last decades, it is essential to acquire reaction kinetics and kinetic model for the implementation of photocatalytic reactions. However, traditional kinetic study for photocatalytic reactions has problems including low accuracy, repeatability and efficiency in measurement, and difficulty in controlling the reaction conditions. Herein, we report an automatic continuous microflow platform for kinetics measurement and analysis of homogeneous photocatalytic reactions, with accurate control of reaction conditions (species concentrations, light intensity and residence time), efficient online measurement and sophisticated data analysis. Via the automatic platform, the rate law for the homogeneous photocatalysis of 9,10-diphenylanthracene (DPA) was acquired by investigating 70 different reaction conditions in 14 h, from which the reaction orders with respect to light intensity, photocatalyst concentration and substrate concentration were determined as 0.62, 0.82 and 1.00, respectively. Subsequently, a reaction rate constant independent of species concentration, light intensity and residence time was derived (with a value of 1.00). By doing so, reaction kinetics and the influence of multiple factors manifested in the as-derived rate law in a direct and concise manner. Furtherly, the as-obtained rate law was demonstrated to make good predictions on reaction kinetics, with an average of relative deviations of 3.18%, even for a range of new reaction conditions extending that used to obtain the rate law. The automatic kinetics measurement and analysis platform and the rate law incorporating the influence of multiple factors reported in this work can pave the way towards deeper understanding and faster implementation of homogeneous photocatalytic reactions. Homogeneous photocatalytic reaction kinetics Automatic control Continuous microflow Reaction rate equation Photocatalyst concentration Light intensity Zhao, Fang verfasserin aut Fan, Wenting verfasserin aut Chen, Ming verfasserin aut Guo, Xuhong verfasserin aut Enthalten in The chemical engineering journal Amsterdam : Elsevier, 1997 447 Online-Ressource (DE-627)320500322 (DE-600)2012137-4 (DE-576)098330152 1873-3212 nnns volume:447 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 58.10 Verfahrenstechnik: Allgemeines AR 447 045F 660.05 |
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10.1016/j.cej.2022.137546 doi (DE-627)ELV008133964 (ELSEVIER)S1385-8947(22)03034-0 DE-627 ger DE-627 rda eng 660.05 DE-101 660 DE-101 660 DE-600 58.10 bkl Li, Jian verfasserin aut Automatic measurement and analysis of kinetics for photocatalytic reactions in continuous microflow 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier As photocatalysis has been demonstrated to be a powerful tool for chemical synthesis over the last decades, it is essential to acquire reaction kinetics and kinetic model for the implementation of photocatalytic reactions. However, traditional kinetic study for photocatalytic reactions has problems including low accuracy, repeatability and efficiency in measurement, and difficulty in controlling the reaction conditions. Herein, we report an automatic continuous microflow platform for kinetics measurement and analysis of homogeneous photocatalytic reactions, with accurate control of reaction conditions (species concentrations, light intensity and residence time), efficient online measurement and sophisticated data analysis. Via the automatic platform, the rate law for the homogeneous photocatalysis of 9,10-diphenylanthracene (DPA) was acquired by investigating 70 different reaction conditions in 14 h, from which the reaction orders with respect to light intensity, photocatalyst concentration and substrate concentration were determined as 0.62, 0.82 and 1.00, respectively. Subsequently, a reaction rate constant independent of species concentration, light intensity and residence time was derived (with a value of 1.00). By doing so, reaction kinetics and the influence of multiple factors manifested in the as-derived rate law in a direct and concise manner. Furtherly, the as-obtained rate law was demonstrated to make good predictions on reaction kinetics, with an average of relative deviations of 3.18%, even for a range of new reaction conditions extending that used to obtain the rate law. The automatic kinetics measurement and analysis platform and the rate law incorporating the influence of multiple factors reported in this work can pave the way towards deeper understanding and faster implementation of homogeneous photocatalytic reactions. Homogeneous photocatalytic reaction kinetics Automatic control Continuous microflow Reaction rate equation Photocatalyst concentration Light intensity Zhao, Fang verfasserin aut Fan, Wenting verfasserin aut Chen, Ming verfasserin aut Guo, Xuhong verfasserin aut Enthalten in The chemical engineering journal Amsterdam : Elsevier, 1997 447 Online-Ressource (DE-627)320500322 (DE-600)2012137-4 (DE-576)098330152 1873-3212 nnns volume:447 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 58.10 Verfahrenstechnik: Allgemeines AR 447 045F 660.05 |
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10.1016/j.cej.2022.137546 doi (DE-627)ELV008133964 (ELSEVIER)S1385-8947(22)03034-0 DE-627 ger DE-627 rda eng 660.05 DE-101 660 DE-101 660 DE-600 58.10 bkl Li, Jian verfasserin aut Automatic measurement and analysis of kinetics for photocatalytic reactions in continuous microflow 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier As photocatalysis has been demonstrated to be a powerful tool for chemical synthesis over the last decades, it is essential to acquire reaction kinetics and kinetic model for the implementation of photocatalytic reactions. However, traditional kinetic study for photocatalytic reactions has problems including low accuracy, repeatability and efficiency in measurement, and difficulty in controlling the reaction conditions. Herein, we report an automatic continuous microflow platform for kinetics measurement and analysis of homogeneous photocatalytic reactions, with accurate control of reaction conditions (species concentrations, light intensity and residence time), efficient online measurement and sophisticated data analysis. Via the automatic platform, the rate law for the homogeneous photocatalysis of 9,10-diphenylanthracene (DPA) was acquired by investigating 70 different reaction conditions in 14 h, from which the reaction orders with respect to light intensity, photocatalyst concentration and substrate concentration were determined as 0.62, 0.82 and 1.00, respectively. Subsequently, a reaction rate constant independent of species concentration, light intensity and residence time was derived (with a value of 1.00). By doing so, reaction kinetics and the influence of multiple factors manifested in the as-derived rate law in a direct and concise manner. Furtherly, the as-obtained rate law was demonstrated to make good predictions on reaction kinetics, with an average of relative deviations of 3.18%, even for a range of new reaction conditions extending that used to obtain the rate law. The automatic kinetics measurement and analysis platform and the rate law incorporating the influence of multiple factors reported in this work can pave the way towards deeper understanding and faster implementation of homogeneous photocatalytic reactions. Homogeneous photocatalytic reaction kinetics Automatic control Continuous microflow Reaction rate equation Photocatalyst concentration Light intensity Zhao, Fang verfasserin aut Fan, Wenting verfasserin aut Chen, Ming verfasserin aut Guo, Xuhong verfasserin aut Enthalten in The chemical engineering journal Amsterdam : Elsevier, 1997 447 Online-Ressource (DE-627)320500322 (DE-600)2012137-4 (DE-576)098330152 1873-3212 nnns volume:447 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 58.10 Verfahrenstechnik: Allgemeines AR 447 045F 660.05 |
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ddc 660.05 ddc 660 bkl 58.10 misc Homogeneous photocatalytic reaction kinetics misc Automatic control misc Continuous microflow misc Reaction rate equation misc Photocatalyst concentration misc Light intensity |
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ddc 660.05 ddc 660 bkl 58.10 misc Homogeneous photocatalytic reaction kinetics misc Automatic control misc Continuous microflow misc Reaction rate equation misc Photocatalyst concentration misc Light intensity |
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ddc 660.05 ddc 660 bkl 58.10 misc Homogeneous photocatalytic reaction kinetics misc Automatic control misc Continuous microflow misc Reaction rate equation misc Photocatalyst concentration misc Light intensity |
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Automatic measurement and analysis of kinetics for photocatalytic reactions in continuous microflow |
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Automatic measurement and analysis of kinetics for photocatalytic reactions in continuous microflow |
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Li, Jian |
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Li, Jian Zhao, Fang Fan, Wenting Chen, Ming Guo, Xuhong |
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automatic measurement and analysis of kinetics for photocatalytic reactions in continuous microflow |
title_auth |
Automatic measurement and analysis of kinetics for photocatalytic reactions in continuous microflow |
abstract |
As photocatalysis has been demonstrated to be a powerful tool for chemical synthesis over the last decades, it is essential to acquire reaction kinetics and kinetic model for the implementation of photocatalytic reactions. However, traditional kinetic study for photocatalytic reactions has problems including low accuracy, repeatability and efficiency in measurement, and difficulty in controlling the reaction conditions. Herein, we report an automatic continuous microflow platform for kinetics measurement and analysis of homogeneous photocatalytic reactions, with accurate control of reaction conditions (species concentrations, light intensity and residence time), efficient online measurement and sophisticated data analysis. Via the automatic platform, the rate law for the homogeneous photocatalysis of 9,10-diphenylanthracene (DPA) was acquired by investigating 70 different reaction conditions in 14 h, from which the reaction orders with respect to light intensity, photocatalyst concentration and substrate concentration were determined as 0.62, 0.82 and 1.00, respectively. Subsequently, a reaction rate constant independent of species concentration, light intensity and residence time was derived (with a value of 1.00). By doing so, reaction kinetics and the influence of multiple factors manifested in the as-derived rate law in a direct and concise manner. Furtherly, the as-obtained rate law was demonstrated to make good predictions on reaction kinetics, with an average of relative deviations of 3.18%, even for a range of new reaction conditions extending that used to obtain the rate law. The automatic kinetics measurement and analysis platform and the rate law incorporating the influence of multiple factors reported in this work can pave the way towards deeper understanding and faster implementation of homogeneous photocatalytic reactions. |
abstractGer |
As photocatalysis has been demonstrated to be a powerful tool for chemical synthesis over the last decades, it is essential to acquire reaction kinetics and kinetic model for the implementation of photocatalytic reactions. However, traditional kinetic study for photocatalytic reactions has problems including low accuracy, repeatability and efficiency in measurement, and difficulty in controlling the reaction conditions. Herein, we report an automatic continuous microflow platform for kinetics measurement and analysis of homogeneous photocatalytic reactions, with accurate control of reaction conditions (species concentrations, light intensity and residence time), efficient online measurement and sophisticated data analysis. Via the automatic platform, the rate law for the homogeneous photocatalysis of 9,10-diphenylanthracene (DPA) was acquired by investigating 70 different reaction conditions in 14 h, from which the reaction orders with respect to light intensity, photocatalyst concentration and substrate concentration were determined as 0.62, 0.82 and 1.00, respectively. Subsequently, a reaction rate constant independent of species concentration, light intensity and residence time was derived (with a value of 1.00). By doing so, reaction kinetics and the influence of multiple factors manifested in the as-derived rate law in a direct and concise manner. Furtherly, the as-obtained rate law was demonstrated to make good predictions on reaction kinetics, with an average of relative deviations of 3.18%, even for a range of new reaction conditions extending that used to obtain the rate law. The automatic kinetics measurement and analysis platform and the rate law incorporating the influence of multiple factors reported in this work can pave the way towards deeper understanding and faster implementation of homogeneous photocatalytic reactions. |
abstract_unstemmed |
As photocatalysis has been demonstrated to be a powerful tool for chemical synthesis over the last decades, it is essential to acquire reaction kinetics and kinetic model for the implementation of photocatalytic reactions. However, traditional kinetic study for photocatalytic reactions has problems including low accuracy, repeatability and efficiency in measurement, and difficulty in controlling the reaction conditions. Herein, we report an automatic continuous microflow platform for kinetics measurement and analysis of homogeneous photocatalytic reactions, with accurate control of reaction conditions (species concentrations, light intensity and residence time), efficient online measurement and sophisticated data analysis. Via the automatic platform, the rate law for the homogeneous photocatalysis of 9,10-diphenylanthracene (DPA) was acquired by investigating 70 different reaction conditions in 14 h, from which the reaction orders with respect to light intensity, photocatalyst concentration and substrate concentration were determined as 0.62, 0.82 and 1.00, respectively. Subsequently, a reaction rate constant independent of species concentration, light intensity and residence time was derived (with a value of 1.00). By doing so, reaction kinetics and the influence of multiple factors manifested in the as-derived rate law in a direct and concise manner. Furtherly, the as-obtained rate law was demonstrated to make good predictions on reaction kinetics, with an average of relative deviations of 3.18%, even for a range of new reaction conditions extending that used to obtain the rate law. The automatic kinetics measurement and analysis platform and the rate law incorporating the influence of multiple factors reported in this work can pave the way towards deeper understanding and faster implementation of homogeneous photocatalytic reactions. |
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title_short |
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