在CuCo2S4纳米薄膜的Se-doping诱导硫空缺工程中,用于增强电催化整体水分裂
Bianli Zhang1, Xingyue Qian1, Hui Xu1
1Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, Jiangsu 213164, China. chenhq@cczu.edu.cn.
Nanoscale
|October 2, 2023
概括
在CuCo2S4纳米板中的兴奋剂和硫空缺显著增强了和氧进化反应的电催化水分裂,实现了与商业催化剂相提并论的性能.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 催化剂是一种催化剂.
背景情况:
- 异原子兴奋剂和硫空缺对于优化水分裂中的电催化性能至关重要.
- 电子结构和电荷转移的协调是高效氧演变反应 (OER) 和演变反应 (HER) 的关键.
研究的目的:
- 为了合成Se-doped CuCo2S4纳米片与丰富的硫空缺,以实现高效的电催化水分裂.
- 调查Se-doping和硫空缺在增强电催化活性和电荷转移动学的作用.
主要方法:
- 含硫空缺的Se-doped CuCo2S4纳米片 (CuCo2S3.68Se0.32) 的水热合成.
- 对HER和OER的电催化性能评估.
主要成果:
- 优化的CuCo2S3.68Se0.32表现出较低的超电位:HER为65mV,OER为230mV在10mA cm-2.0时.
- 该材料表现出高的电催化活性,与商业催化剂相当.
- 使用CuCo2S3.68Se0.32的双电极电解器在10 mA cm-2时实现了1.52 V,具有出色的耐用性.
结论:
- 通过促进电荷运输,海和硫空缺将通过促进电荷运输,协同促进水分裂的电催化活性.
- 开发的材料显示了高效和耐用的电催化水分裂应用的巨大潜力.
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