高透合金CoCrFeNiMo增强了电催化性能,用于高效的电催化水分裂
Xiaoran Huo1, Xiaojiao Zuo1, Xin Wang1
1School of Materials Science and Engineering, Shenyang University of Technology, Shenyang, 110870, P. R. China.
Chemistry, an Asian journal
|June 24, 2023
概括
高合金 (HEAs) 在性溶液中表现为电催化剂,用于生产和氧的演化反应. CoCrFeNiMo HEAs表现出显著的双功能活动,推动了可持续经济的努力.
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
- 可再生能源可再生能源是可再生能源.
背景情况:
- 高效的电催化剂对于经济至关重要,特别是在性环境中.
- 高合金 (HEA) 为催化应用提供可调节的性能.
研究的目的:
- 研究CoCrFeNi和CoCrFeNiMoHEAs作为演化反应 (HER) 和氧演化反应 (OER) 的双功能电催化剂.
- 为了评估这些HEAs在性介质中的电催化性能和耐用性.
主要方法:
- 合成的 CoCrFeNi 和 CoCrFeNiMo HEA 粉末.
- 电化学表征包括HER和OER在1.0M KOH中的性能测试.
- 与商业催化剂 (如Pt/C和RuO2.2) 的比较.
主要成果:
- CoCrFeNi和CoCrFeNiMo HEAs表现出良好的HER活性,其超电位分别为156.7mV和160.5mV,在10mA cm-2下.
- 与商业RuO2相比,CoCrFeNiMo催化剂表现出更高的OER活性,在50 mA cm-2.2时具有390 mV的超电位.
- 使用HEA催化剂进行水分裂,在10 mA cm-2.2时达到1.86 V的电池电压.
结论:
- CoCrFeNi和CoCrFeNiMo HEAs是性介质中HER和OER的有效双功能电催化剂.
- 这些HEA为生产气和水分的贵金属催化剂提供了可行的替代方案.
- 对HEA优化的进一步研究可以提高它们的性能,以实现可持续的经济.
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