期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 4, 期 23, 页码 8995-9001出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ta01234e
关键词
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资金
- European Research Council [240144]
- BMBF [03Z1MN11, 03Z1M511]
- DFG [LE 2249_4-1]
- Alexander von Humboldt Foundation
- Hundred-Talent Program (Chinese Academy of Sciences)
- Beijing Natural Science Foundation [2162042]
- National Natural Science Foundation of China [21503209]
In view of the disadvantages of the conventional photocathodic materials, we focus on exploiting new candidates for a high-efficiency photoelectrochemical (PEC) system. Herein, we report on the fabrication of CuBi2O4 (CBO) films on FTO (fluorine doped tin oxide) and FTO/Au substrates, respectively, through the electrochemical deposition approach. It was observed that the presence of a Au thin layer could help to improve the crystal quality of the grown CBO films, promote the separation of photo-generated charges in the corresponding material and reduce the resistance of the system. In comparison with the FTO/CBO, the FTO/Au/CBO photocathode presents a remarkable improvement in the photocurrent, from -0.23 mA cm(-2) to -0.50 mA cm(-2) at 0.1 V vs. RHE. After optimizing the PEC system by depositing Pt nanoparticles on the CBO films, the plateau photocurrent was further amplified to -1.24 mA cm(-2). These data indicate an attractive p-type material in photoelectrochemistry, without concern for the corrosion problem in aqueous electrolytes.
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