通过支持α-In2Se3的单原子催化剂电化学减少CO2
Yun Yang1, Shixi Liu1, Gang Fu2
1School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China.
The journal of physical chemistry letters
|June 26, 2023
概括
在化催化剂上的通过电催化有效地将二氧化碳 (CO2) 转化为有价值的产品. 这一发现为可持续的二氧化碳利用和先进催化剂的开发提供了有希望的途径.
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
- 计算化学计算化学
背景情况:
- 电化学二氧化碳减排 (CO2RR) 对可持续能源和化学生产至关重要.
- 开发高效和选择性的催化剂是克服CO2RR挑战的关键.
- 与二维材料集成的过渡金属催化剂对CO2RR有很大的希望.
研究的目的:
- 通过使用DFT和ESM-RISM来研究CO2RR的过渡金属和α-In2Se3单层催化剂.
- 为了建立中间吸附能量和催化性能之间的关系.
- 为有效的电催化二氧化碳减排确定有前途的催化剂.
主要方法:
- 密度函数理论 (DFT) 的计算.
- 有效选媒介方法-参考交互场地模型 (ESM-RISM).
- 计算电极 (CHE) 方法用于限制潜在的确定.
主要成果:
- 氧结合 (*O) 和碳结合 (*CHO) 中间体之间的确定的缩放关系.
- 在M@In2Se3催化剂上确定了有利于CO2化的*OCHO中间体.
- 预测Co@In2Se3↓-C作为一个非常有前途的催化剂,具有低限制潜力为-0.385V.
结论:
- 氧系物种的吸附能量决定了M@In2Se3.3.的催化性能.
- M@In2Se3催化剂显示出高效CO2RR的巨大潜力.
- 这项研究为设计用于减少二氧化碳的铁电单原子催化剂提供了见解.
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