Improved Photoelectrochemical Performance of BiVO<sub>4</sub> for Water Oxidation Enabled by the Integration of the Ni@NiO Core–Shell Structure
The development of highly efficient and stable photoelectrode materials is of significant importance for the conversion of solar energy into chemical fuels. Herein, a novel Ni@NiO/BiVO<sub>4</sub> photoanode is designed and prepared for efficient water splitting by the deposition of Ni p...
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MDPI AG
2022-11-01
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| Online Access: | https://www.mdpi.com/2073-4344/12/11/1456 |
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| author | Jun-Yuan Cui Shi-Shi Zhu Yang Zou Yan Zhang Shao-Yu Yuan Tian-Tian Li Shi-Yi Guo Hong Liu Jian-Jun Wang |
| author_facet | Jun-Yuan Cui Shi-Shi Zhu Yang Zou Yan Zhang Shao-Yu Yuan Tian-Tian Li Shi-Yi Guo Hong Liu Jian-Jun Wang |
| author_sort | Jun-Yuan Cui |
| collection | DOAJ |
| description | The development of highly efficient and stable photoelectrode materials is of significant importance for the conversion of solar energy into chemical fuels. Herein, a novel Ni@NiO/BiVO<sub>4</sub> photoanode is designed and prepared for efficient water splitting by the deposition of Ni particles on the surface of BiVO<sub>4</sub> with subsequent thermal treatment. The integration of the Ni@NiO core–shell structure can efficiently passivate the surface states and accelerate the oxygen evolution kinetics along with the in situ-generated NiOOH, consequently contributing to the significantly improved charge separation efficiency. The resulting Ni@NiO/BiVO<sub>4</sub> photoelectrode enabled a photocurrent density of 2.6 mA/cm<sup>2</sup> with a surface charge separation efficiency of nearly 80% at the potential of 1.23 V<sub>RHE</sub>—much better than the unmodified BiVO<sub>4</sub> (1.8 mA/cm<sup>2</sup>, 64%). |
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| id | doaj.art-ab60e18164e343aca2ce995501edaf13 |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-09T18:25:37Z |
| publishDate | 2022-11-01 |
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| spelling | doaj.art-ab60e18164e343aca2ce995501edaf132023-11-24T07:56:21ZengMDPI AGCatalysts2073-43442022-11-011211145610.3390/catal12111456Improved Photoelectrochemical Performance of BiVO<sub>4</sub> for Water Oxidation Enabled by the Integration of the Ni@NiO Core–Shell StructureJun-Yuan Cui0Shi-Shi Zhu1Yang Zou2Yan Zhang3Shao-Yu Yuan4Tian-Tian Li5Shi-Yi Guo6Hong Liu7Jian-Jun Wang8State Key Laboratory of Crystal Material, Shandong University, Jinan 250100, ChinaState Key Laboratory of Crystal Material, Shandong University, Jinan 250100, ChinaState Key Laboratory of Crystal Material, Shandong University, Jinan 250100, ChinaState Key Laboratory of Crystal Material, Shandong University, Jinan 250100, ChinaState Key Laboratory of Crystal Material, Shandong University, Jinan 250100, ChinaState Key Laboratory of Crystal Material, Shandong University, Jinan 250100, ChinaState Key Laboratory of Crystal Material, Shandong University, Jinan 250100, ChinaState Key Laboratory of Crystal Material, Shandong University, Jinan 250100, ChinaState Key Laboratory of Crystal Material, Shandong University, Jinan 250100, ChinaThe development of highly efficient and stable photoelectrode materials is of significant importance for the conversion of solar energy into chemical fuels. Herein, a novel Ni@NiO/BiVO<sub>4</sub> photoanode is designed and prepared for efficient water splitting by the deposition of Ni particles on the surface of BiVO<sub>4</sub> with subsequent thermal treatment. The integration of the Ni@NiO core–shell structure can efficiently passivate the surface states and accelerate the oxygen evolution kinetics along with the in situ-generated NiOOH, consequently contributing to the significantly improved charge separation efficiency. The resulting Ni@NiO/BiVO<sub>4</sub> photoelectrode enabled a photocurrent density of 2.6 mA/cm<sup>2</sup> with a surface charge separation efficiency of nearly 80% at the potential of 1.23 V<sub>RHE</sub>—much better than the unmodified BiVO<sub>4</sub> (1.8 mA/cm<sup>2</sup>, 64%).https://www.mdpi.com/2073-4344/12/11/1456BiVO<sub>4</sub>Ni@NiOphotoelectrochemicalwater oxidation |
| spellingShingle | Jun-Yuan Cui Shi-Shi Zhu Yang Zou Yan Zhang Shao-Yu Yuan Tian-Tian Li Shi-Yi Guo Hong Liu Jian-Jun Wang Improved Photoelectrochemical Performance of BiVO<sub>4</sub> for Water Oxidation Enabled by the Integration of the Ni@NiO Core–Shell Structure Catalysts BiVO<sub>4</sub> Ni@NiO photoelectrochemical water oxidation |
| title | Improved Photoelectrochemical Performance of BiVO<sub>4</sub> for Water Oxidation Enabled by the Integration of the Ni@NiO Core–Shell Structure |
| title_full | Improved Photoelectrochemical Performance of BiVO<sub>4</sub> for Water Oxidation Enabled by the Integration of the Ni@NiO Core–Shell Structure |
| title_fullStr | Improved Photoelectrochemical Performance of BiVO<sub>4</sub> for Water Oxidation Enabled by the Integration of the Ni@NiO Core–Shell Structure |
| title_full_unstemmed | Improved Photoelectrochemical Performance of BiVO<sub>4</sub> for Water Oxidation Enabled by the Integration of the Ni@NiO Core–Shell Structure |
| title_short | Improved Photoelectrochemical Performance of BiVO<sub>4</sub> for Water Oxidation Enabled by the Integration of the Ni@NiO Core–Shell Structure |
| title_sort | improved photoelectrochemical performance of bivo sub 4 sub for water oxidation enabled by the integration of the ni nio core shell structure |
| topic | BiVO<sub>4</sub> Ni@NiO photoelectrochemical water oxidation |
| url | https://www.mdpi.com/2073-4344/12/11/1456 |
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