Hydrothermal Synthesis of Nanosized Titania Powders: Influence of Tetraalkyl Ammonium Hydroxides on Particle Characteristics
Three types of tetraalkyl ammonium hydroxides (TANOHs)—namely, tetramethyl ammonium hydroxide (TMNOH), tetraethyl ammonium hydroxide (TENOH), and tetrabutyl ammonium hydroxide (TBNOH)—were used as peptizing agents for the hydrothermal synthesis of nanocrystalline TiO2 powders. X-ray diffractometry,...
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| Autor*in: |
Yang, Juan [verfasserIn] Mei, Sen [verfasserIn] Ferreira, José M. F. [verfasserIn] |
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| Format: |
E-Artikel |
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| Erschienen: |
Westerville, Ohio: American Ceramics Society ; 2001 |
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Online-Ressource |
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| Reproduktion: |
2004 ; Blackwell Publishing Journal Backfiles 1879-2005 |
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In: Journal of the American Ceramic Society - American Ceramic Society ; GKD-ID: 6113X, Oxford [u.a.] : Wiley-Blackwell, 1918, 84(2001), 8, Seite 0 |
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volume:84 ; year:2001 ; number:8 ; pages:0 |
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| DOI / URN: |
10.1111/j.1151-2916.2001.tb00901.x |
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| 520 | |a Three types of tetraalkyl ammonium hydroxides (TANOHs)—namely, tetramethyl ammonium hydroxide (TMNOH), tetraethyl ammonium hydroxide (TENOH), and tetrabutyl ammonium hydroxide (TBNOH)—were used as peptizing agents for the hydrothermal synthesis of nanocrystalline TiO2 powders. X-ray diffractometry, Brunauer-Emmett-Teller surface-area analysis, differential thermal analysis-thermogravimetry, scanning electron microscopy, and transmission electron microscopy were used to characterize the powders. The results showed that the carbon-chain length of TANOHs had a great influence on the particle size, particle shape, and the phase transformation of the hydrothermally derived TiO2 particles. Anatase phase was obtained in all the samples, regardless of the peptizer used, and the particle size increased as the peptizer cation size decreased. In the presence of TMNOH, the particle shape changed from spherical at low concentration to rodlike with increasing TMNOH concentration, whereas a transition from a spherical morphology to an asterisk-like structure was observed in the TENOH peptized samples. However, spherical particles were formed in all the TBNOH peptized samples. The anatase-rutile transition occurred at a lower temperature for the TENOH-derived powders, relative to the other two peptizers. | ||
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10.1111/j.1151-2916.2001.tb00901.x doi (DE-627)NLEJ243464878 DE-627 ger DE-627 rakwb Yang, Juan verfasserin aut Hydrothermal Synthesis of Nanosized Titania Powders: Influence of Tetraalkyl Ammonium Hydroxides on Particle Characteristics Westerville, Ohio American Ceramics Society 2001 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Three types of tetraalkyl ammonium hydroxides (TANOHs)—namely, tetramethyl ammonium hydroxide (TMNOH), tetraethyl ammonium hydroxide (TENOH), and tetrabutyl ammonium hydroxide (TBNOH)—were used as peptizing agents for the hydrothermal synthesis of nanocrystalline TiO2 powders. X-ray diffractometry, Brunauer-Emmett-Teller surface-area analysis, differential thermal analysis-thermogravimetry, scanning electron microscopy, and transmission electron microscopy were used to characterize the powders. The results showed that the carbon-chain length of TANOHs had a great influence on the particle size, particle shape, and the phase transformation of the hydrothermally derived TiO2 particles. Anatase phase was obtained in all the samples, regardless of the peptizer used, and the particle size increased as the peptizer cation size decreased. In the presence of TMNOH, the particle shape changed from spherical at low concentration to rodlike with increasing TMNOH concentration, whereas a transition from a spherical morphology to an asterisk-like structure was observed in the TENOH peptized samples. However, spherical particles were formed in all the TBNOH peptized samples. The anatase-rutile transition occurred at a lower temperature for the TENOH-derived powders, relative to the other two peptizers. 2004 Blackwell Publishing Journal Backfiles 1879-2005 |2004|||||||||| titanium oxide Mei, Sen verfasserin aut Ferreira, José M. F. verfasserin aut In American Ceramic Society ; GKD-ID: 6113X Journal of the American Ceramic Society Oxford [u.a.] : Wiley-Blackwell, 1918 84(2001), 8, Seite 0 Online-Ressource (DE-627)NLEJ243927835 (DE-600)2008170-4 1551-2916 nnns volume:84 year:2001 number:8 pages:0 http://dx.doi.org/10.1111/j.1151-2916.2001.tb00901.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 84 2001 8 0 |
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10.1111/j.1151-2916.2001.tb00901.x doi (DE-627)NLEJ243464878 DE-627 ger DE-627 rakwb Yang, Juan verfasserin aut Hydrothermal Synthesis of Nanosized Titania Powders: Influence of Tetraalkyl Ammonium Hydroxides on Particle Characteristics Westerville, Ohio American Ceramics Society 2001 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Three types of tetraalkyl ammonium hydroxides (TANOHs)—namely, tetramethyl ammonium hydroxide (TMNOH), tetraethyl ammonium hydroxide (TENOH), and tetrabutyl ammonium hydroxide (TBNOH)—were used as peptizing agents for the hydrothermal synthesis of nanocrystalline TiO2 powders. X-ray diffractometry, Brunauer-Emmett-Teller surface-area analysis, differential thermal analysis-thermogravimetry, scanning electron microscopy, and transmission electron microscopy were used to characterize the powders. The results showed that the carbon-chain length of TANOHs had a great influence on the particle size, particle shape, and the phase transformation of the hydrothermally derived TiO2 particles. Anatase phase was obtained in all the samples, regardless of the peptizer used, and the particle size increased as the peptizer cation size decreased. In the presence of TMNOH, the particle shape changed from spherical at low concentration to rodlike with increasing TMNOH concentration, whereas a transition from a spherical morphology to an asterisk-like structure was observed in the TENOH peptized samples. However, spherical particles were formed in all the TBNOH peptized samples. The anatase-rutile transition occurred at a lower temperature for the TENOH-derived powders, relative to the other two peptizers. 2004 Blackwell Publishing Journal Backfiles 1879-2005 |2004|||||||||| titanium oxide Mei, Sen verfasserin aut Ferreira, José M. F. verfasserin aut In American Ceramic Society ; GKD-ID: 6113X Journal of the American Ceramic Society Oxford [u.a.] : Wiley-Blackwell, 1918 84(2001), 8, Seite 0 Online-Ressource (DE-627)NLEJ243927835 (DE-600)2008170-4 1551-2916 nnns volume:84 year:2001 number:8 pages:0 http://dx.doi.org/10.1111/j.1151-2916.2001.tb00901.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 84 2001 8 0 |
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10.1111/j.1151-2916.2001.tb00901.x doi (DE-627)NLEJ243464878 DE-627 ger DE-627 rakwb Yang, Juan verfasserin aut Hydrothermal Synthesis of Nanosized Titania Powders: Influence of Tetraalkyl Ammonium Hydroxides on Particle Characteristics Westerville, Ohio American Ceramics Society 2001 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Three types of tetraalkyl ammonium hydroxides (TANOHs)—namely, tetramethyl ammonium hydroxide (TMNOH), tetraethyl ammonium hydroxide (TENOH), and tetrabutyl ammonium hydroxide (TBNOH)—were used as peptizing agents for the hydrothermal synthesis of nanocrystalline TiO2 powders. X-ray diffractometry, Brunauer-Emmett-Teller surface-area analysis, differential thermal analysis-thermogravimetry, scanning electron microscopy, and transmission electron microscopy were used to characterize the powders. The results showed that the carbon-chain length of TANOHs had a great influence on the particle size, particle shape, and the phase transformation of the hydrothermally derived TiO2 particles. Anatase phase was obtained in all the samples, regardless of the peptizer used, and the particle size increased as the peptizer cation size decreased. In the presence of TMNOH, the particle shape changed from spherical at low concentration to rodlike with increasing TMNOH concentration, whereas a transition from a spherical morphology to an asterisk-like structure was observed in the TENOH peptized samples. However, spherical particles were formed in all the TBNOH peptized samples. The anatase-rutile transition occurred at a lower temperature for the TENOH-derived powders, relative to the other two peptizers. 2004 Blackwell Publishing Journal Backfiles 1879-2005 |2004|||||||||| titanium oxide Mei, Sen verfasserin aut Ferreira, José M. F. verfasserin aut In American Ceramic Society ; GKD-ID: 6113X Journal of the American Ceramic Society Oxford [u.a.] : Wiley-Blackwell, 1918 84(2001), 8, Seite 0 Online-Ressource (DE-627)NLEJ243927835 (DE-600)2008170-4 1551-2916 nnns volume:84 year:2001 number:8 pages:0 http://dx.doi.org/10.1111/j.1151-2916.2001.tb00901.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 84 2001 8 0 |
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10.1111/j.1151-2916.2001.tb00901.x doi (DE-627)NLEJ243464878 DE-627 ger DE-627 rakwb Yang, Juan verfasserin aut Hydrothermal Synthesis of Nanosized Titania Powders: Influence of Tetraalkyl Ammonium Hydroxides on Particle Characteristics Westerville, Ohio American Ceramics Society 2001 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Three types of tetraalkyl ammonium hydroxides (TANOHs)—namely, tetramethyl ammonium hydroxide (TMNOH), tetraethyl ammonium hydroxide (TENOH), and tetrabutyl ammonium hydroxide (TBNOH)—were used as peptizing agents for the hydrothermal synthesis of nanocrystalline TiO2 powders. X-ray diffractometry, Brunauer-Emmett-Teller surface-area analysis, differential thermal analysis-thermogravimetry, scanning electron microscopy, and transmission electron microscopy were used to characterize the powders. The results showed that the carbon-chain length of TANOHs had a great influence on the particle size, particle shape, and the phase transformation of the hydrothermally derived TiO2 particles. Anatase phase was obtained in all the samples, regardless of the peptizer used, and the particle size increased as the peptizer cation size decreased. In the presence of TMNOH, the particle shape changed from spherical at low concentration to rodlike with increasing TMNOH concentration, whereas a transition from a spherical morphology to an asterisk-like structure was observed in the TENOH peptized samples. However, spherical particles were formed in all the TBNOH peptized samples. The anatase-rutile transition occurred at a lower temperature for the TENOH-derived powders, relative to the other two peptizers. 2004 Blackwell Publishing Journal Backfiles 1879-2005 |2004|||||||||| titanium oxide Mei, Sen verfasserin aut Ferreira, José M. F. verfasserin aut In American Ceramic Society ; GKD-ID: 6113X Journal of the American Ceramic Society Oxford [u.a.] : Wiley-Blackwell, 1918 84(2001), 8, Seite 0 Online-Ressource (DE-627)NLEJ243927835 (DE-600)2008170-4 1551-2916 nnns volume:84 year:2001 number:8 pages:0 http://dx.doi.org/10.1111/j.1151-2916.2001.tb00901.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 84 2001 8 0 |
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10.1111/j.1151-2916.2001.tb00901.x doi (DE-627)NLEJ243464878 DE-627 ger DE-627 rakwb Yang, Juan verfasserin aut Hydrothermal Synthesis of Nanosized Titania Powders: Influence of Tetraalkyl Ammonium Hydroxides on Particle Characteristics Westerville, Ohio American Ceramics Society 2001 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Three types of tetraalkyl ammonium hydroxides (TANOHs)—namely, tetramethyl ammonium hydroxide (TMNOH), tetraethyl ammonium hydroxide (TENOH), and tetrabutyl ammonium hydroxide (TBNOH)—were used as peptizing agents for the hydrothermal synthesis of nanocrystalline TiO2 powders. X-ray diffractometry, Brunauer-Emmett-Teller surface-area analysis, differential thermal analysis-thermogravimetry, scanning electron microscopy, and transmission electron microscopy were used to characterize the powders. The results showed that the carbon-chain length of TANOHs had a great influence on the particle size, particle shape, and the phase transformation of the hydrothermally derived TiO2 particles. Anatase phase was obtained in all the samples, regardless of the peptizer used, and the particle size increased as the peptizer cation size decreased. In the presence of TMNOH, the particle shape changed from spherical at low concentration to rodlike with increasing TMNOH concentration, whereas a transition from a spherical morphology to an asterisk-like structure was observed in the TENOH peptized samples. However, spherical particles were formed in all the TBNOH peptized samples. The anatase-rutile transition occurred at a lower temperature for the TENOH-derived powders, relative to the other two peptizers. 2004 Blackwell Publishing Journal Backfiles 1879-2005 |2004|||||||||| titanium oxide Mei, Sen verfasserin aut Ferreira, José M. F. verfasserin aut In American Ceramic Society ; GKD-ID: 6113X Journal of the American Ceramic Society Oxford [u.a.] : Wiley-Blackwell, 1918 84(2001), 8, Seite 0 Online-Ressource (DE-627)NLEJ243927835 (DE-600)2008170-4 1551-2916 nnns volume:84 year:2001 number:8 pages:0 http://dx.doi.org/10.1111/j.1151-2916.2001.tb00901.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 84 2001 8 0 |
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Hydrothermal Synthesis of Nanosized Titania Powders: Influence of Tetraalkyl Ammonium Hydroxides on Particle Characteristics |
| abstract |
Three types of tetraalkyl ammonium hydroxides (TANOHs)—namely, tetramethyl ammonium hydroxide (TMNOH), tetraethyl ammonium hydroxide (TENOH), and tetrabutyl ammonium hydroxide (TBNOH)—were used as peptizing agents for the hydrothermal synthesis of nanocrystalline TiO2 powders. X-ray diffractometry, Brunauer-Emmett-Teller surface-area analysis, differential thermal analysis-thermogravimetry, scanning electron microscopy, and transmission electron microscopy were used to characterize the powders. The results showed that the carbon-chain length of TANOHs had a great influence on the particle size, particle shape, and the phase transformation of the hydrothermally derived TiO2 particles. Anatase phase was obtained in all the samples, regardless of the peptizer used, and the particle size increased as the peptizer cation size decreased. In the presence of TMNOH, the particle shape changed from spherical at low concentration to rodlike with increasing TMNOH concentration, whereas a transition from a spherical morphology to an asterisk-like structure was observed in the TENOH peptized samples. However, spherical particles were formed in all the TBNOH peptized samples. The anatase-rutile transition occurred at a lower temperature for the TENOH-derived powders, relative to the other two peptizers. |
| abstractGer |
Three types of tetraalkyl ammonium hydroxides (TANOHs)—namely, tetramethyl ammonium hydroxide (TMNOH), tetraethyl ammonium hydroxide (TENOH), and tetrabutyl ammonium hydroxide (TBNOH)—were used as peptizing agents for the hydrothermal synthesis of nanocrystalline TiO2 powders. X-ray diffractometry, Brunauer-Emmett-Teller surface-area analysis, differential thermal analysis-thermogravimetry, scanning electron microscopy, and transmission electron microscopy were used to characterize the powders. The results showed that the carbon-chain length of TANOHs had a great influence on the particle size, particle shape, and the phase transformation of the hydrothermally derived TiO2 particles. Anatase phase was obtained in all the samples, regardless of the peptizer used, and the particle size increased as the peptizer cation size decreased. In the presence of TMNOH, the particle shape changed from spherical at low concentration to rodlike with increasing TMNOH concentration, whereas a transition from a spherical morphology to an asterisk-like structure was observed in the TENOH peptized samples. However, spherical particles were formed in all the TBNOH peptized samples. The anatase-rutile transition occurred at a lower temperature for the TENOH-derived powders, relative to the other two peptizers. |
| abstract_unstemmed |
Three types of tetraalkyl ammonium hydroxides (TANOHs)—namely, tetramethyl ammonium hydroxide (TMNOH), tetraethyl ammonium hydroxide (TENOH), and tetrabutyl ammonium hydroxide (TBNOH)—were used as peptizing agents for the hydrothermal synthesis of nanocrystalline TiO2 powders. X-ray diffractometry, Brunauer-Emmett-Teller surface-area analysis, differential thermal analysis-thermogravimetry, scanning electron microscopy, and transmission electron microscopy were used to characterize the powders. The results showed that the carbon-chain length of TANOHs had a great influence on the particle size, particle shape, and the phase transformation of the hydrothermally derived TiO2 particles. Anatase phase was obtained in all the samples, regardless of the peptizer used, and the particle size increased as the peptizer cation size decreased. In the presence of TMNOH, the particle shape changed from spherical at low concentration to rodlike with increasing TMNOH concentration, whereas a transition from a spherical morphology to an asterisk-like structure was observed in the TENOH peptized samples. However, spherical particles were formed in all the TBNOH peptized samples. The anatase-rutile transition occurred at a lower temperature for the TENOH-derived powders, relative to the other two peptizers. |
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Hydrothermal Synthesis of Nanosized Titania Powders: Influence of Tetraalkyl Ammonium Hydroxides on Particle Characteristics |
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http://dx.doi.org/10.1111/j.1151-2916.2001.tb00901.x |
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Mei, Sen Ferreira, José M. F. |
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10.1111/j.1151-2916.2001.tb00901.x |
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