期刊
NANOSCALE
卷 12, 期 7, 页码 4302-4308出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0nr00004c
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资金
- 111 Project New Materials and Technology for Clean Energy [B18018]
- Key Technologies R AMP
- D Program of Anhui Province [1704c0402195]
- MOE (Singapore) [MOE2016-T2-2-138]
- China Scholarship Council (CSC) [201806690009]
Low photoconversion efficiency, high charge transfer resistance and fast recombination rate are the bottlenecks of semiconductor nanomaterials in photoelectrochemical (PEC) water splitting, where the introduction of an appropriate co-catalyst is an effective strategy to improve their performance. In the present study, we have purposely designed atomic-scale dispersed bismuth (Bi) assembled on titanium dioxide nanorods (TiO2), and demonstrated its effective role as a co-catalyst in enhancing the PEC water splitting performance of TiO2. As a result, functionalized Bi/TiO2 generates a high photocurrent intensity at 1.23 V-RHE under simulated solar light irradiation, which is 4-fold higher than that of pristine TiO2, exhibiting a significantly improved PEC performance for water splitting. The strategy presented in this study opens a new window for the construction of non-precious metals dispersed at atomic scales as efficient co-catalysts for realizing sustainable solar energy-driven energy conversion and storage.
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