Revealing the Doping Effect of Cu2+ on SrSnO3 Perovskite Oxides for CO2 Electroreduction
Revealing the Doping Effect of Cu2+ on SrSnO3 Perovskite Oxides for CO2 Electroreduction
复制标题
揭示 Cu2 对 SrSnO3 钙钛矿氧化物的 CO2 电还原的掺杂效应
DOI：
10.1002/celc.202200635
复制
发表时间：
2022
期刊：
影响因子：
4
通讯作者：
Ying Zhang
中科院分区：
文献类型：
--
作者：
Yanying Wang;Zhenlin Wang;Dan Wang;Junjun Mao;Chenchen Zhang;Ying Zhang
本研究采用简单通用的策略设计了SrSnO3、0.5 wt %-SS和1 wt %-SS（SrSnO3分别负载0.5 wt % Cu2+和1 wt % Cu2+）催化剂，研究了Cu2+掺杂引起的CO2电还原（CER）中产物选择性的变化。 SrSnO3 钙钛矿氧化物。 SrSnO3 和 0.5 wt %-SS 对 HCOOH 的选择性表现出一致的趋势。而1 wt %-SS则表现出产物选择性的显着变化，并且FECO在-1.53 V时达到最大值，值为49 %。 1%wt%-SS表面负载的足够的Cu2+作为CER过程中的实际活性位点，调节了CER过程中SrSnO3的产物生成途径，从而促进CO的生成，实现了CER产物选择性的调节。这项工作可能会激发人们对 CER 铜基钙钛矿氧化物催化剂设计的更多关注。
In this study, SrSnO3, 0.5 wt %‐SS and 1 wt %‐SS (SrSnO3loaded with 0.5 wt % Cu2+and 1 wt % Cu2+, respectively) catalysts were designed using a simple and versatile strategy to investigate the changes of products selectivity in CO2electroreduction (CER) induced by doping Cu2+on SrSnO3perovskite oxide. Both SrSnO3and 0.5 wt %‐SS showed a consistent trend for the selectivity of HCOOH. While 1 wt %‐SS showed a significant change in product selectivity and the FECOreached a maximum at −1.53 V with a value of 49 %. The sufficient Cu2+loaded on the surface of 1 wt %‐SS worked as the actual active sites during the CER and adjusted the pathway of product generation of SrSnO3in the CER process, subsequently promoting the generation of CO and achieving regulation of the CER product selectivity. This work may stimulate more attention on the design of the Cu‐based perovskite oxide catalyst for CER.