Ni-ZnO@NC 催化剂将 CO2 高效电催化还原为CO

打开文本图片集

中图分类号：X52 文献标志码：A

文章编号：2096-2983（2026）01-0001-08

Abstract： Electrocatalytic reduction of CO2 to CO is a potential strategy for achieving carbon neutrality. To addressthe issues of low activity and insufficient durability of electrocatalysts， we explored a dualscale 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 ，thereby enhancing CO selectivity and suppressing H2 generation. Additionally， the pore constriction effect confined the bimetalic 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（aNC exhibited an excellent CO selectivity of （95.0±3.0）% at -0.72V （vs. RHE），and maintained good stability for 70h . This study provides a practical approach for the design of highactivity and high-stability electrocatalysts.

Keywords： electrocatalytic CO2 reduction； heterointerface; pore constriction effect; bimetallic nanoparticles

利用可再生能源驱动，通过电催化还原将CO2 转化为CO或其他增值化学产品及燃料，已经成为控制 CO2 浓度、实现碳中和的有效手段[1-2]。（剩余11418字）