Oxygen-Deficient Nanofiber WO3–x/WO3 Homojunction Photoanodes Synthesized via a Novel Metal Self-Reducing Method
Source abstract
Abstract
Defect engineering of semiconductors has been identified as an efficient route toward enhancing the photoelectrochemical performances. There is a security threat in the traditional hydrogen annealing process. In this work, the oxygen-defective nanofiber WO3–x/WO3 homojunction photoanode was in situ-synthesized via a novel metal self-reducing method. The as-prepared photoanode exhibits 1.8 times higher solar water oxidation photocurrent density than that of the bare WO3 film at 1.2 V versus Ag/AgCl. The enhanced photoelectrochemical properties originate from the effective charge separation and injection, attributed to the stronger built-in electric field created by the oxygen-deficient homojunction. Importantly, this novel method is universally applicable to synthesize oxygen-deficient semiconductor materials, including films and powders.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Ga2O3 and related materials · Copper-based nanomaterials and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China
Institute of Super-microstructure and Ultrafast Process in Advanced Materials, School of Physics and Electronics, Central South University, Changsha 410083, China
Funding
Ministry of Education of the People's Republic of China · National Natural Science Foundation of China · Hundred Youth Talents Program of Hunan · Hunan Provincial Science and Technology Plan Project · Shenzhen science and technology innovation project · State Key Laboratory of Powder Metallurgy in Central South University · Project of Innovation-Driven Plan in Central South University
References (50)
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