Ultrathin g-C3N4/Mo:BiVO4 photoanode for enhanced photoelectrochemical water oxidation
A g-C3N4/Mo:BiVO4 (CMB) heterojunction photoanode is constructed with enhanced photoelectrochemical (PEC) water oxidation performance, in which ultrathin g-C3N4 is coated on Mo-doped BiVO4. CMB shows a remarkable water oxidation photocurrent of 3.11 mA cm−2 at 1.23 V vs. RHE, which is 3.21 times hig...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Zeng, Guihua [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2019transfer abstract |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method - Xiao, Hong ELSEVIER, 2013, the international journal on the science and technology of electrochemical energy systems, New York, NY [u.a.] |
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| Übergeordnetes Werk: |
volume:444 ; year:2019 ; day:31 ; month:12 ; pages:0 |
| Links: |
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| DOI / URN: |
10.1016/j.jpowsour.2019.227300 |
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| Katalog-ID: |
ELV048597716 |
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| 245 | 1 | 0 | |a Ultrathin g-C3N4/Mo:BiVO4 photoanode for enhanced photoelectrochemical water oxidation |
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| 520 | |a A g-C3N4/Mo:BiVO4 (CMB) heterojunction photoanode is constructed with enhanced photoelectrochemical (PEC) water oxidation performance, in which ultrathin g-C3N4 is coated on Mo-doped BiVO4. CMB shows a remarkable water oxidation photocurrent of 3.11 mA cm−2 at 1.23 V vs. RHE, which is 3.21 times higher than pristine BiVO4. The maximal incident photon-to-current efficiency (IPCE) reaches 45.5% at 430 nm and the applied bias photo-to-current efficiency (ABPE) reaches 0.74% at 0.78 V vs. RHE, which are 2.62 and 5.76 times compared with pristine BiVO4, respectively. The amounts of hydrogen and oxygen generated by CMB are 18.58 and 9.32 μmol within 1 h, which are 4.66 and 5.51 times higher than pristine BiVO4. The significant enhancements are attributed to the improvement of charge separation and acceleration of oxygen evolution reaction (OER) kinetics. Mo-dopant enhances charge separation due to its excellent electron transfer capability. Ultrathin g-C3N4 also boosts charge separation via forming a heterojunction with Mo:BiVO4 and promotes OER kinetics by accelerating the transfer of holes to the photoelectrode surface. The work testifies the promise of combing metal-doping with constructing heterojunctions using ultrathin g-C3N4 to enhance water oxidation performance, and provides an excellent reference for designing and constructing efficient photoanodes for PEC water oxidation. | ||
| 520 | |a A g-C3N4/Mo:BiVO4 (CMB) heterojunction photoanode is constructed with enhanced photoelectrochemical (PEC) water oxidation performance, in which ultrathin g-C3N4 is coated on Mo-doped BiVO4. CMB shows a remarkable water oxidation photocurrent of 3.11 mA cm−2 at 1.23 V vs. RHE, which is 3.21 times higher than pristine BiVO4. The maximal incident photon-to-current efficiency (IPCE) reaches 45.5% at 430 nm and the applied bias photo-to-current efficiency (ABPE) reaches 0.74% at 0.78 V vs. RHE, which are 2.62 and 5.76 times compared with pristine BiVO4, respectively. The amounts of hydrogen and oxygen generated by CMB are 18.58 and 9.32 μmol within 1 h, which are 4.66 and 5.51 times higher than pristine BiVO4. The significant enhancements are attributed to the improvement of charge separation and acceleration of oxygen evolution reaction (OER) kinetics. Mo-dopant enhances charge separation due to its excellent electron transfer capability. Ultrathin g-C3N4 also boosts charge separation via forming a heterojunction with Mo:BiVO4 and promotes OER kinetics by accelerating the transfer of holes to the photoelectrode surface. The work testifies the promise of combing metal-doping with constructing heterojunctions using ultrathin g-C3N4 to enhance water oxidation performance, and provides an excellent reference for designing and constructing efficient photoanodes for PEC water oxidation. | ||
| 650 | 7 | |a Graphitic carbon nitride (g-C3N4) |2 Elsevier | |
| 650 | 7 | |a PEC water oxidation |2 Elsevier | |
| 650 | 7 | |a Metal doping |2 Elsevier | |
| 650 | 7 | |a BiVO4 photoanode |2 Elsevier | |
| 650 | 7 | |a Heterojunction |2 Elsevier | |
| 700 | 1 | |a Wang, Xiaojun |4 oth | |
| 700 | 1 | |a Yu, Xiang |4 oth | |
| 700 | 1 | |a Guo, Jia |4 oth | |
| 700 | 1 | |a Zhu, Yi |4 oth | |
| 700 | 1 | |a Zhang, Yuanming |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier |a Xiao, Hong ELSEVIER |t Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method |d 2013 |d the international journal on the science and technology of electrochemical energy systems |g New York, NY [u.a.] |w (DE-627)ELV00098745X |
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| 856 | 4 | 0 | |u https://doi.org/10.1016/j.jpowsour.2019.227300 |3 Volltext |
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10.1016/j.jpowsour.2019.227300 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000000822.pica (DE-627)ELV048597716 (ELSEVIER)S0378-7753(19)31293-5 DE-627 ger DE-627 rakwb eng 690 VZ 50.92 bkl Zeng, Guihua verfasserin aut Ultrathin g-C3N4/Mo:BiVO4 photoanode for enhanced photoelectrochemical water oxidation 2019transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A g-C3N4/Mo:BiVO4 (CMB) heterojunction photoanode is constructed with enhanced photoelectrochemical (PEC) water oxidation performance, in which ultrathin g-C3N4 is coated on Mo-doped BiVO4. CMB shows a remarkable water oxidation photocurrent of 3.11 mA cm−2 at 1.23 V vs. RHE, which is 3.21 times higher than pristine BiVO4. The maximal incident photon-to-current efficiency (IPCE) reaches 45.5% at 430 nm and the applied bias photo-to-current efficiency (ABPE) reaches 0.74% at 0.78 V vs. RHE, which are 2.62 and 5.76 times compared with pristine BiVO4, respectively. The amounts of hydrogen and oxygen generated by CMB are 18.58 and 9.32 μmol within 1 h, which are 4.66 and 5.51 times higher than pristine BiVO4. The significant enhancements are attributed to the improvement of charge separation and acceleration of oxygen evolution reaction (OER) kinetics. Mo-dopant enhances charge separation due to its excellent electron transfer capability. Ultrathin g-C3N4 also boosts charge separation via forming a heterojunction with Mo:BiVO4 and promotes OER kinetics by accelerating the transfer of holes to the photoelectrode surface. The work testifies the promise of combing metal-doping with constructing heterojunctions using ultrathin g-C3N4 to enhance water oxidation performance, and provides an excellent reference for designing and constructing efficient photoanodes for PEC water oxidation. A g-C3N4/Mo:BiVO4 (CMB) heterojunction photoanode is constructed with enhanced photoelectrochemical (PEC) water oxidation performance, in which ultrathin g-C3N4 is coated on Mo-doped BiVO4. CMB shows a remarkable water oxidation photocurrent of 3.11 mA cm−2 at 1.23 V vs. RHE, which is 3.21 times higher than pristine BiVO4. The maximal incident photon-to-current efficiency (IPCE) reaches 45.5% at 430 nm and the applied bias photo-to-current efficiency (ABPE) reaches 0.74% at 0.78 V vs. RHE, which are 2.62 and 5.76 times compared with pristine BiVO4, respectively. The amounts of hydrogen and oxygen generated by CMB are 18.58 and 9.32 μmol within 1 h, which are 4.66 and 5.51 times higher than pristine BiVO4. The significant enhancements are attributed to the improvement of charge separation and acceleration of oxygen evolution reaction (OER) kinetics. Mo-dopant enhances charge separation due to its excellent electron transfer capability. Ultrathin g-C3N4 also boosts charge separation via forming a heterojunction with Mo:BiVO4 and promotes OER kinetics by accelerating the transfer of holes to the photoelectrode surface. The work testifies the promise of combing metal-doping with constructing heterojunctions using ultrathin g-C3N4 to enhance water oxidation performance, and provides an excellent reference for designing and constructing efficient photoanodes for PEC water oxidation. Graphitic carbon nitride (g-C3N4) Elsevier PEC water oxidation Elsevier Metal doping Elsevier BiVO4 photoanode Elsevier Heterojunction Elsevier Wang, Xiaojun oth Yu, Xiang oth Guo, Jia oth Zhu, Yi oth Zhang, Yuanming oth Enthalten in Elsevier Xiao, Hong ELSEVIER Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method 2013 the international journal on the science and technology of electrochemical energy systems New York, NY [u.a.] (DE-627)ELV00098745X volume:444 year:2019 day:31 month:12 pages:0 https://doi.org/10.1016/j.jpowsour.2019.227300 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 50.92 Meerestechnik VZ AR 444 2019 31 1231 0 |
| spelling |
10.1016/j.jpowsour.2019.227300 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000000822.pica (DE-627)ELV048597716 (ELSEVIER)S0378-7753(19)31293-5 DE-627 ger DE-627 rakwb eng 690 VZ 50.92 bkl Zeng, Guihua verfasserin aut Ultrathin g-C3N4/Mo:BiVO4 photoanode for enhanced photoelectrochemical water oxidation 2019transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A g-C3N4/Mo:BiVO4 (CMB) heterojunction photoanode is constructed with enhanced photoelectrochemical (PEC) water oxidation performance, in which ultrathin g-C3N4 is coated on Mo-doped BiVO4. CMB shows a remarkable water oxidation photocurrent of 3.11 mA cm−2 at 1.23 V vs. RHE, which is 3.21 times higher than pristine BiVO4. The maximal incident photon-to-current efficiency (IPCE) reaches 45.5% at 430 nm and the applied bias photo-to-current efficiency (ABPE) reaches 0.74% at 0.78 V vs. RHE, which are 2.62 and 5.76 times compared with pristine BiVO4, respectively. The amounts of hydrogen and oxygen generated by CMB are 18.58 and 9.32 μmol within 1 h, which are 4.66 and 5.51 times higher than pristine BiVO4. The significant enhancements are attributed to the improvement of charge separation and acceleration of oxygen evolution reaction (OER) kinetics. Mo-dopant enhances charge separation due to its excellent electron transfer capability. Ultrathin g-C3N4 also boosts charge separation via forming a heterojunction with Mo:BiVO4 and promotes OER kinetics by accelerating the transfer of holes to the photoelectrode surface. The work testifies the promise of combing metal-doping with constructing heterojunctions using ultrathin g-C3N4 to enhance water oxidation performance, and provides an excellent reference for designing and constructing efficient photoanodes for PEC water oxidation. A g-C3N4/Mo:BiVO4 (CMB) heterojunction photoanode is constructed with enhanced photoelectrochemical (PEC) water oxidation performance, in which ultrathin g-C3N4 is coated on Mo-doped BiVO4. CMB shows a remarkable water oxidation photocurrent of 3.11 mA cm−2 at 1.23 V vs. RHE, which is 3.21 times higher than pristine BiVO4. The maximal incident photon-to-current efficiency (IPCE) reaches 45.5% at 430 nm and the applied bias photo-to-current efficiency (ABPE) reaches 0.74% at 0.78 V vs. RHE, which are 2.62 and 5.76 times compared with pristine BiVO4, respectively. The amounts of hydrogen and oxygen generated by CMB are 18.58 and 9.32 μmol within 1 h, which are 4.66 and 5.51 times higher than pristine BiVO4. The significant enhancements are attributed to the improvement of charge separation and acceleration of oxygen evolution reaction (OER) kinetics. Mo-dopant enhances charge separation due to its excellent electron transfer capability. Ultrathin g-C3N4 also boosts charge separation via forming a heterojunction with Mo:BiVO4 and promotes OER kinetics by accelerating the transfer of holes to the photoelectrode surface. The work testifies the promise of combing metal-doping with constructing heterojunctions using ultrathin g-C3N4 to enhance water oxidation performance, and provides an excellent reference for designing and constructing efficient photoanodes for PEC water oxidation. Graphitic carbon nitride (g-C3N4) Elsevier PEC water oxidation Elsevier Metal doping Elsevier BiVO4 photoanode Elsevier Heterojunction Elsevier Wang, Xiaojun oth Yu, Xiang oth Guo, Jia oth Zhu, Yi oth Zhang, Yuanming oth Enthalten in Elsevier Xiao, Hong ELSEVIER Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method 2013 the international journal on the science and technology of electrochemical energy systems New York, NY [u.a.] (DE-627)ELV00098745X volume:444 year:2019 day:31 month:12 pages:0 https://doi.org/10.1016/j.jpowsour.2019.227300 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 50.92 Meerestechnik VZ AR 444 2019 31 1231 0 |
| allfields_unstemmed |
10.1016/j.jpowsour.2019.227300 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000000822.pica (DE-627)ELV048597716 (ELSEVIER)S0378-7753(19)31293-5 DE-627 ger DE-627 rakwb eng 690 VZ 50.92 bkl Zeng, Guihua verfasserin aut Ultrathin g-C3N4/Mo:BiVO4 photoanode for enhanced photoelectrochemical water oxidation 2019transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A g-C3N4/Mo:BiVO4 (CMB) heterojunction photoanode is constructed with enhanced photoelectrochemical (PEC) water oxidation performance, in which ultrathin g-C3N4 is coated on Mo-doped BiVO4. CMB shows a remarkable water oxidation photocurrent of 3.11 mA cm−2 at 1.23 V vs. RHE, which is 3.21 times higher than pristine BiVO4. The maximal incident photon-to-current efficiency (IPCE) reaches 45.5% at 430 nm and the applied bias photo-to-current efficiency (ABPE) reaches 0.74% at 0.78 V vs. RHE, which are 2.62 and 5.76 times compared with pristine BiVO4, respectively. The amounts of hydrogen and oxygen generated by CMB are 18.58 and 9.32 μmol within 1 h, which are 4.66 and 5.51 times higher than pristine BiVO4. The significant enhancements are attributed to the improvement of charge separation and acceleration of oxygen evolution reaction (OER) kinetics. Mo-dopant enhances charge separation due to its excellent electron transfer capability. Ultrathin g-C3N4 also boosts charge separation via forming a heterojunction with Mo:BiVO4 and promotes OER kinetics by accelerating the transfer of holes to the photoelectrode surface. The work testifies the promise of combing metal-doping with constructing heterojunctions using ultrathin g-C3N4 to enhance water oxidation performance, and provides an excellent reference for designing and constructing efficient photoanodes for PEC water oxidation. A g-C3N4/Mo:BiVO4 (CMB) heterojunction photoanode is constructed with enhanced photoelectrochemical (PEC) water oxidation performance, in which ultrathin g-C3N4 is coated on Mo-doped BiVO4. CMB shows a remarkable water oxidation photocurrent of 3.11 mA cm−2 at 1.23 V vs. RHE, which is 3.21 times higher than pristine BiVO4. The maximal incident photon-to-current efficiency (IPCE) reaches 45.5% at 430 nm and the applied bias photo-to-current efficiency (ABPE) reaches 0.74% at 0.78 V vs. RHE, which are 2.62 and 5.76 times compared with pristine BiVO4, respectively. The amounts of hydrogen and oxygen generated by CMB are 18.58 and 9.32 μmol within 1 h, which are 4.66 and 5.51 times higher than pristine BiVO4. The significant enhancements are attributed to the improvement of charge separation and acceleration of oxygen evolution reaction (OER) kinetics. Mo-dopant enhances charge separation due to its excellent electron transfer capability. Ultrathin g-C3N4 also boosts charge separation via forming a heterojunction with Mo:BiVO4 and promotes OER kinetics by accelerating the transfer of holes to the photoelectrode surface. The work testifies the promise of combing metal-doping with constructing heterojunctions using ultrathin g-C3N4 to enhance water oxidation performance, and provides an excellent reference for designing and constructing efficient photoanodes for PEC water oxidation. Graphitic carbon nitride (g-C3N4) Elsevier PEC water oxidation Elsevier Metal doping Elsevier BiVO4 photoanode Elsevier Heterojunction Elsevier Wang, Xiaojun oth Yu, Xiang oth Guo, Jia oth Zhu, Yi oth Zhang, Yuanming oth Enthalten in Elsevier Xiao, Hong ELSEVIER Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method 2013 the international journal on the science and technology of electrochemical energy systems New York, NY [u.a.] (DE-627)ELV00098745X volume:444 year:2019 day:31 month:12 pages:0 https://doi.org/10.1016/j.jpowsour.2019.227300 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 50.92 Meerestechnik VZ AR 444 2019 31 1231 0 |
| allfieldsGer |
10.1016/j.jpowsour.2019.227300 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000000822.pica (DE-627)ELV048597716 (ELSEVIER)S0378-7753(19)31293-5 DE-627 ger DE-627 rakwb eng 690 VZ 50.92 bkl Zeng, Guihua verfasserin aut Ultrathin g-C3N4/Mo:BiVO4 photoanode for enhanced photoelectrochemical water oxidation 2019transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A g-C3N4/Mo:BiVO4 (CMB) heterojunction photoanode is constructed with enhanced photoelectrochemical (PEC) water oxidation performance, in which ultrathin g-C3N4 is coated on Mo-doped BiVO4. CMB shows a remarkable water oxidation photocurrent of 3.11 mA cm−2 at 1.23 V vs. RHE, which is 3.21 times higher than pristine BiVO4. The maximal incident photon-to-current efficiency (IPCE) reaches 45.5% at 430 nm and the applied bias photo-to-current efficiency (ABPE) reaches 0.74% at 0.78 V vs. RHE, which are 2.62 and 5.76 times compared with pristine BiVO4, respectively. The amounts of hydrogen and oxygen generated by CMB are 18.58 and 9.32 μmol within 1 h, which are 4.66 and 5.51 times higher than pristine BiVO4. The significant enhancements are attributed to the improvement of charge separation and acceleration of oxygen evolution reaction (OER) kinetics. Mo-dopant enhances charge separation due to its excellent electron transfer capability. Ultrathin g-C3N4 also boosts charge separation via forming a heterojunction with Mo:BiVO4 and promotes OER kinetics by accelerating the transfer of holes to the photoelectrode surface. The work testifies the promise of combing metal-doping with constructing heterojunctions using ultrathin g-C3N4 to enhance water oxidation performance, and provides an excellent reference for designing and constructing efficient photoanodes for PEC water oxidation. A g-C3N4/Mo:BiVO4 (CMB) heterojunction photoanode is constructed with enhanced photoelectrochemical (PEC) water oxidation performance, in which ultrathin g-C3N4 is coated on Mo-doped BiVO4. CMB shows a remarkable water oxidation photocurrent of 3.11 mA cm−2 at 1.23 V vs. RHE, which is 3.21 times higher than pristine BiVO4. The maximal incident photon-to-current efficiency (IPCE) reaches 45.5% at 430 nm and the applied bias photo-to-current efficiency (ABPE) reaches 0.74% at 0.78 V vs. RHE, which are 2.62 and 5.76 times compared with pristine BiVO4, respectively. The amounts of hydrogen and oxygen generated by CMB are 18.58 and 9.32 μmol within 1 h, which are 4.66 and 5.51 times higher than pristine BiVO4. The significant enhancements are attributed to the improvement of charge separation and acceleration of oxygen evolution reaction (OER) kinetics. Mo-dopant enhances charge separation due to its excellent electron transfer capability. Ultrathin g-C3N4 also boosts charge separation via forming a heterojunction with Mo:BiVO4 and promotes OER kinetics by accelerating the transfer of holes to the photoelectrode surface. The work testifies the promise of combing metal-doping with constructing heterojunctions using ultrathin g-C3N4 to enhance water oxidation performance, and provides an excellent reference for designing and constructing efficient photoanodes for PEC water oxidation. Graphitic carbon nitride (g-C3N4) Elsevier PEC water oxidation Elsevier Metal doping Elsevier BiVO4 photoanode Elsevier Heterojunction Elsevier Wang, Xiaojun oth Yu, Xiang oth Guo, Jia oth Zhu, Yi oth Zhang, Yuanming oth Enthalten in Elsevier Xiao, Hong ELSEVIER Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method 2013 the international journal on the science and technology of electrochemical energy systems New York, NY [u.a.] (DE-627)ELV00098745X volume:444 year:2019 day:31 month:12 pages:0 https://doi.org/10.1016/j.jpowsour.2019.227300 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 50.92 Meerestechnik VZ AR 444 2019 31 1231 0 |
| allfieldsSound |
10.1016/j.jpowsour.2019.227300 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000000822.pica (DE-627)ELV048597716 (ELSEVIER)S0378-7753(19)31293-5 DE-627 ger DE-627 rakwb eng 690 VZ 50.92 bkl Zeng, Guihua verfasserin aut Ultrathin g-C3N4/Mo:BiVO4 photoanode for enhanced photoelectrochemical water oxidation 2019transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A g-C3N4/Mo:BiVO4 (CMB) heterojunction photoanode is constructed with enhanced photoelectrochemical (PEC) water oxidation performance, in which ultrathin g-C3N4 is coated on Mo-doped BiVO4. CMB shows a remarkable water oxidation photocurrent of 3.11 mA cm−2 at 1.23 V vs. RHE, which is 3.21 times higher than pristine BiVO4. The maximal incident photon-to-current efficiency (IPCE) reaches 45.5% at 430 nm and the applied bias photo-to-current efficiency (ABPE) reaches 0.74% at 0.78 V vs. RHE, which are 2.62 and 5.76 times compared with pristine BiVO4, respectively. The amounts of hydrogen and oxygen generated by CMB are 18.58 and 9.32 μmol within 1 h, which are 4.66 and 5.51 times higher than pristine BiVO4. The significant enhancements are attributed to the improvement of charge separation and acceleration of oxygen evolution reaction (OER) kinetics. Mo-dopant enhances charge separation due to its excellent electron transfer capability. Ultrathin g-C3N4 also boosts charge separation via forming a heterojunction with Mo:BiVO4 and promotes OER kinetics by accelerating the transfer of holes to the photoelectrode surface. The work testifies the promise of combing metal-doping with constructing heterojunctions using ultrathin g-C3N4 to enhance water oxidation performance, and provides an excellent reference for designing and constructing efficient photoanodes for PEC water oxidation. A g-C3N4/Mo:BiVO4 (CMB) heterojunction photoanode is constructed with enhanced photoelectrochemical (PEC) water oxidation performance, in which ultrathin g-C3N4 is coated on Mo-doped BiVO4. CMB shows a remarkable water oxidation photocurrent of 3.11 mA cm−2 at 1.23 V vs. RHE, which is 3.21 times higher than pristine BiVO4. The maximal incident photon-to-current efficiency (IPCE) reaches 45.5% at 430 nm and the applied bias photo-to-current efficiency (ABPE) reaches 0.74% at 0.78 V vs. RHE, which are 2.62 and 5.76 times compared with pristine BiVO4, respectively. The amounts of hydrogen and oxygen generated by CMB are 18.58 and 9.32 μmol within 1 h, which are 4.66 and 5.51 times higher than pristine BiVO4. The significant enhancements are attributed to the improvement of charge separation and acceleration of oxygen evolution reaction (OER) kinetics. Mo-dopant enhances charge separation due to its excellent electron transfer capability. Ultrathin g-C3N4 also boosts charge separation via forming a heterojunction with Mo:BiVO4 and promotes OER kinetics by accelerating the transfer of holes to the photoelectrode surface. The work testifies the promise of combing metal-doping with constructing heterojunctions using ultrathin g-C3N4 to enhance water oxidation performance, and provides an excellent reference for designing and constructing efficient photoanodes for PEC water oxidation. Graphitic carbon nitride (g-C3N4) Elsevier PEC water oxidation Elsevier Metal doping Elsevier BiVO4 photoanode Elsevier Heterojunction Elsevier Wang, Xiaojun oth Yu, Xiang oth Guo, Jia oth Zhu, Yi oth Zhang, Yuanming oth Enthalten in Elsevier Xiao, Hong ELSEVIER Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method 2013 the international journal on the science and technology of electrochemical energy systems New York, NY [u.a.] (DE-627)ELV00098745X volume:444 year:2019 day:31 month:12 pages:0 https://doi.org/10.1016/j.jpowsour.2019.227300 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 50.92 Meerestechnik VZ AR 444 2019 31 1231 0 |
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Ultrathin g-C3N4/Mo:BiVO4 photoanode for enhanced photoelectrochemical water oxidation |
| abstract |
A g-C3N4/Mo:BiVO4 (CMB) heterojunction photoanode is constructed with enhanced photoelectrochemical (PEC) water oxidation performance, in which ultrathin g-C3N4 is coated on Mo-doped BiVO4. CMB shows a remarkable water oxidation photocurrent of 3.11 mA cm−2 at 1.23 V vs. RHE, which is 3.21 times higher than pristine BiVO4. The maximal incident photon-to-current efficiency (IPCE) reaches 45.5% at 430 nm and the applied bias photo-to-current efficiency (ABPE) reaches 0.74% at 0.78 V vs. RHE, which are 2.62 and 5.76 times compared with pristine BiVO4, respectively. The amounts of hydrogen and oxygen generated by CMB are 18.58 and 9.32 μmol within 1 h, which are 4.66 and 5.51 times higher than pristine BiVO4. The significant enhancements are attributed to the improvement of charge separation and acceleration of oxygen evolution reaction (OER) kinetics. Mo-dopant enhances charge separation due to its excellent electron transfer capability. Ultrathin g-C3N4 also boosts charge separation via forming a heterojunction with Mo:BiVO4 and promotes OER kinetics by accelerating the transfer of holes to the photoelectrode surface. The work testifies the promise of combing metal-doping with constructing heterojunctions using ultrathin g-C3N4 to enhance water oxidation performance, and provides an excellent reference for designing and constructing efficient photoanodes for PEC water oxidation. |
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A g-C3N4/Mo:BiVO4 (CMB) heterojunction photoanode is constructed with enhanced photoelectrochemical (PEC) water oxidation performance, in which ultrathin g-C3N4 is coated on Mo-doped BiVO4. CMB shows a remarkable water oxidation photocurrent of 3.11 mA cm−2 at 1.23 V vs. RHE, which is 3.21 times higher than pristine BiVO4. The maximal incident photon-to-current efficiency (IPCE) reaches 45.5% at 430 nm and the applied bias photo-to-current efficiency (ABPE) reaches 0.74% at 0.78 V vs. RHE, which are 2.62 and 5.76 times compared with pristine BiVO4, respectively. The amounts of hydrogen and oxygen generated by CMB are 18.58 and 9.32 μmol within 1 h, which are 4.66 and 5.51 times higher than pristine BiVO4. The significant enhancements are attributed to the improvement of charge separation and acceleration of oxygen evolution reaction (OER) kinetics. Mo-dopant enhances charge separation due to its excellent electron transfer capability. Ultrathin g-C3N4 also boosts charge separation via forming a heterojunction with Mo:BiVO4 and promotes OER kinetics by accelerating the transfer of holes to the photoelectrode surface. The work testifies the promise of combing metal-doping with constructing heterojunctions using ultrathin g-C3N4 to enhance water oxidation performance, and provides an excellent reference for designing and constructing efficient photoanodes for PEC water oxidation. |
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A g-C3N4/Mo:BiVO4 (CMB) heterojunction photoanode is constructed with enhanced photoelectrochemical (PEC) water oxidation performance, in which ultrathin g-C3N4 is coated on Mo-doped BiVO4. CMB shows a remarkable water oxidation photocurrent of 3.11 mA cm−2 at 1.23 V vs. RHE, which is 3.21 times higher than pristine BiVO4. The maximal incident photon-to-current efficiency (IPCE) reaches 45.5% at 430 nm and the applied bias photo-to-current efficiency (ABPE) reaches 0.74% at 0.78 V vs. RHE, which are 2.62 and 5.76 times compared with pristine BiVO4, respectively. The amounts of hydrogen and oxygen generated by CMB are 18.58 and 9.32 μmol within 1 h, which are 4.66 and 5.51 times higher than pristine BiVO4. The significant enhancements are attributed to the improvement of charge separation and acceleration of oxygen evolution reaction (OER) kinetics. Mo-dopant enhances charge separation due to its excellent electron transfer capability. Ultrathin g-C3N4 also boosts charge separation via forming a heterojunction with Mo:BiVO4 and promotes OER kinetics by accelerating the transfer of holes to the photoelectrode surface. The work testifies the promise of combing metal-doping with constructing heterojunctions using ultrathin g-C3N4 to enhance water oxidation performance, and provides an excellent reference for designing and constructing efficient photoanodes for PEC water oxidation. |
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