双碳联体对催化剂对CO2电还原的影响
Marvin L Richter1, Eduardo Peris1, Sergio Gonell1
1Institute of Advanced Materials (INAM), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universitat Jaume I, Av. Vicente Sos Baynat s/n., E-12071, Castellón, Spain.
ChemSusChem
|July 4, 2024
概括
具有七个成员环的催化剂显示出高选择性和对二氧化碳 (CO2) 减排的活性. 这些电催化剂显著降低了所需的能量,为二氧化碳转化提供了更有效的途径.
科学领域:
- 无机化学 无机化学
- 电化学 电化学 电化学
- 催化剂是一种催化剂.
背景情况:
- 第一排过渡金属复合物是用于减少二氧化碳的成本效益高的电催化剂.
- 在6个成员金属循环中,复合体与 bis-N-异环碳联体有效地将CO2转化为CO.
研究的目的:
- 为了合成和评估具有7个成员金属循环的碳基复合物,使用刚性正基-烯桥接 bis-N-异环碳基联体 (Ph-bis-mim).
- 为了比较这些7个成员金属循环复合物的催化性能与具有6个成员金属循环 (C2H4-bis-mim和CH2-bis-mim) 的类似物.
主要方法:
- 由Ph-bis-mim,C2H4-bis-mim和CH2-bis-mim连接体支持的碳化合物复合物的合成.
- 对合成复合物的二氧化碳减排活性,选择性和过度潜力的电化学评估.
主要成果:
- 7个成员的金属循环催化剂表现出与其6个成员的对应物相比,可比的二氧化碳减排选择性和活性.
- 对于具有7个成员金属循环的催化剂,观察到过高电位 (120-190mV) 的显著降低.
结论:
- bis-N-异环碳复合物与7个成员的金属循环提供了改善的电催化性能,用于减少二氧化碳.
- 这些发现确立了开发高效,负担得起和低过量的电催化剂的设计原则,以减少二氧化碳排放.
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