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PubMed Publications| Keyword search (4,163 papers available) |  |
"Liu X" Authored Publications:
| Title: | Dynamic semiconductor-electrolyte interface for sustainable solar water splitting over 600 hours under neutral conditions | ||||
| Authors: | Gao RT, Nguyen NT, Nakajima T, He J, Liu X, Zhang X, Wang L, Wu L | ||||
| Link: | https://pubmed.ncbi.nlm.nih.gov/36598972/ | ||||
| DOI: | 10.1126/sciadv.ade4589 | ||||
| Publication: | Science advances | ||||
| Keywords: | |||||
| PMID: | 36598972 | Category: | Date Added: | 2023-01-04 | |
| Dept Affiliation: |
ENCS
1 College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, China. 2 Department of Chemical and Materials Engineering, Gina Cody School of Engineering and Computer Science, Concordia University, Montreal QC H3G 2W1, Canada. 3 Advanced Manufacturing Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan. 4 Key Laboratory of Materials Processing and Mold, Ministry of Education, Zhengzhou University, Zhengzhou 450002, China. 5 State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China. 6 Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200433, China. |
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Description: |
Photoelectrochemical (PEC) water splitting that functions in pH-neutral electrolyte attracts increasing attention to energy demand sustainability. Here, we propose a strategy to in situ form a NiB layer by tuning the composition of the neutral electrolyte with the additions of nickel and borate species, which improves the PEC performance of the BiVO4 photoanode. The NiB/BiVO4 exhibits a photocurrent density of 6.0 mA cm-2 at 1.23 VRHE with an onset potential of 0.2 VRHE under 1 sun illumination. The photoanode displays a photostability of over 600 hours in a neutral electrolyte. The additive of Ni2+ in the electrolyte, which efficiently inhibits the dissolution of NiB, can accelerate the photogenerated charge transfer and enhance the water oxidation kinetics. The borate species with B-O bonds act as a promoter of catalyst activity by accelerating proton-coupled electron transfer. The synergy effect of both species suppresses the surface charge recombination and inhibits the photocorrosion of BiVO4. |
