电动力学分析驱动的促进电催化CO的减少到n-propanol
Yaqin Yan1, Kunhao Liu1, Chao Yang1
1Laboratory of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200438, China.
将二氧化碳或一氧化碳电催化降解为n-propanol具有挑战性. 这项研究确定了确定速率的步骤,并表明高氧化物度促进了C3的产生.
科学领域:
- 电化学 电化学 电化学
- 催化剂是一种催化剂.
- 可持续化学 可持续化学
背景情况:
- 电催化二氧化碳/一氧化碳减排 (CO2RR/CORR) 提供了可持续的化学生产.
- 由于反应机制不清楚,产生像n-propanol这样的高价值C3产品是很困难的.
研究的目的:
- 研究CO2RR/CORR中C3产品形成的机制.
- 确定提高n-propanol选择性和生产的策略.
主要方法:
- 图表斜率分析的方法
- 电解质pH相关性 电解质pH相关性
- 使用CO部分压力配件进行动力分析.
- 巴特勒-沃尔默方程的导数
主要成果:
- 对于n-propanol和C2产品,确定了一个共享的速率决定步骤 (两个C1中间体的合).
- 证明高氧化物度和水有限的环境促进C2到C3合用于n-propanol合成.
- 在5.0m [OH−]时为n-propanol达到45mA cm−2的部分电流密度,明显高于较低度.
结论:
- 该研究提供了通过电催化产生n-propanol的综合动力学分析.
- 研究结果表明,可以设计改进的催化系统来增强C3化学合成的途径.
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