用于高性能光电化学产过氧化氢的基于BiVO的异质结光阴极
BiVO-Based Heterojunction Photocathode for High-Performance Photoelectrochemical Hydrogen Peroxide Production.
作者信息
Shi Shaobo, Song Yurou, Jiao Yuye, Jin Dingfeng, Li Zhuwei, Xie Huimin, Gao Lihua, Sun Licheng, Hou Jungang
机构信息
State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, P. R. China.
Center of Artificial Photosynthesis for Solar Fuels and Department of Chemistry, School of Science, Westlake University, Hangzhou 310024, P. R. China.
出版信息
Nano Lett. 2024 May 22;24(20):6051-6060. doi: 10.1021/acs.nanolett.4c00901. Epub 2024 Apr 29.
Photoelectrochemical (PEC) cells provide a promising solution for the synthesis of hydrogen peroxide (HO). Herein, an integrated photocathode of p-type BiVO (p-BVO) array with tetragonal zircon structure coupled with different metal oxide (MO, M = Sn, Ti, Ni, and Zn) heterostructure and NiNC cocatalyst (p-BVO/MO/NiNC) was synthesized for the PEC oxygen reduction reaction (ORR) in production of HO. The p-BVO/SnO/NiNC array achieves the production rate 65.46 μmol L h of HO with a Faraday efficiency (FE) of 76.12%. Combined with the HO generation of water oxidation from the n-type Mo-doped BiVO (n-Mo:BVO) photoanode, the unbiased photoelectrochemical cell composed of a p-BVO/SnO/NiNC photocathode and n-Mo:BVO photoanode achieves a total FE of 97.67% for HO generation. The large area BiVO-based tandem cell of 3 × 3 cm can reach a total HO production yield of 338.84 μmol L. This work paves the way for the rational design and fabrication of artificial photosynthetic cells for the production of liquid solar fuel.
光电化学（PEC）电池为过氧化氢（HO）的合成提供了一种很有前景的解决方案。在此，合成了一种具有四方锆结构的p型BiVO（p-BVO）阵列与不同金属氧化物（MO，M = Sn、Ti、Ni和Zn）异质结构以及NiNC助催化剂相结合的集成光阴极（p-BVO/MO/NiNC），用于PEC氧还原反应（ORR）以生产HO。p-BVO/SnO/NiNC阵列实现了HO的产率为65.46 μmol L h，法拉第效率（FE）为76.12%。结合n型Mo掺杂BiVO（n-Mo:BVO）光阳极水氧化产生HO，由p-BVO/SnO/NiNC光阴极和n-Mo:BVO光阳极组成的无偏压光电化学电池实现了HO生成的总FE为97.67%。3×3 cm的大面积BiVO基串联电池的总HO产率可达338.84 μmol L。这项工作为合理设计和制造用于生产液体太阳能燃料的人工光合电池铺平了道路。
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