| Autor: |
Liu, Zeyu, Jiang, Zhenzhen, Luo, Xingfang, Zhou, Wenda, Chen, Mingyue, Su, Meixia, Shi, Ping, Hou, Yinhui, Xiong, Ziren, Li, Qinliang, Yu, Ting, Yuan, Cailei |
| Předmět: |
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| Zdroj: |
Applied Physics Letters; 9/28/2021, Vol. 119 Issue 10, p1-6, 6p |
| Abstrakt: |
WO3 nanowires (NWs) have emerged as a promising alternative electrocatalyst for the photoelectrochemical (PEC) oxygen evolution reaction (OER), due to their nontoxicity, low cost, good stability, and strong photocatalytic oxidation ability. However, a significant challenge is limited by the poor electrical conductivity and the rapid recombination rate of photogenerated carriers. This paper reports a facile and effective way to synthesize the WO3 NWs with oxygen vacancies (Ov-WO3 NWs), which have high PEC OER activity and good stability. Photoelectric measurements indicate that the Ov-WO3 NW-based device shows a good light-harvesting property under visible light and a prolonged photoresponse time. Electrochemical impedance spectra measurements reveal a reduced value of Rct denoting an improved electrical conductivity, which should be responsible for the superior PEC OER performance. Our work provides a strategy for fabricating efficient water-splitting electrodes to help establish rational design principles for future OER catalysts. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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