有色金属材料与工程2026，Vol.47Issue(1)：1-8,8.DOI:10.13258/j.cnki.nmme.20250320001
Ni-Zn O@NC催化剂将CO2高效电催化还原为CO
Ni-ZnO@NC catalyst for highly efficient electrocatalytic reduction of CO2 to CO
摘要
Abstract
Electrocatalytic reduction of CO2 to CO is a potential strategy for achieving carbon neutrality.To address the issues of low activity and insufficient durability of electrocatalysts,we explored a dual-scale design strategy of active site engineering and pore constriction effect.By implanting non-noble metal active centers of Ni-ZnO nanoparticles into the nanopores of NC carriers(Ni-ZnO@NC),a bimetallic heterointerface was constructed to regulate the electronic configuration.The electron density reconstruction was beneficial for the adsorption of *COOH and the desorption of *CO,thereby enhancing CO selectivity and suppressing H2 generation.Additionally,the pore constriction effect confined the bimetallic nanoparticles within the nanopores,preventing the separation and agglomeration of nanoparticles during the CO2 reduction reaction process to improve stability.The results showed that Ni-ZnO@NC exhibited an excellent CO selectivity of(95.0±3.0)%at −0.72 V(vs.RHE),and maintained good stability for 70 h.This study provides a practical approach for the design of high-activity and high-stability electrocatalysts.关键词
电催化CO2还原/异质界面/孔限制效应/双金属纳米颗粒Key words
electrocatalytic CO2 reduction/heterointerface/pore constriction effect/bimetallic nanoparticles分类
资源环境引用本文复制引用
袁世雄,李亮..Ni-Zn O@NC催化剂将CO2高效电催化还原为CO[J].有色金属材料与工程,2026,47(1):1-8,8.基金项目
国家自然科学基金资助项目(22476107) （22476107）
