催化作用
模板
电化学
镍
材料科学
纳米颗粒
碳纤维
共价键
氮气
共价有机骨架
兴奋剂
无机化学
化学工程
纳米技术
电极
化学
有机化学
冶金
物理化学
复合数
光电子学
工程类
复合材料
作者
Yuzhen Zhao,Xinxin Yu,Zhuangzhuang Wu,Yongpeng Li,Wenxin Wang,Lijuan Feng,Zhuyin Sui,Qi Chen
标识
DOI:10.1002/adsu.202400284
摘要
Abstract Electrochemical CO 2 reduction (ECR) reactions, powered by cleaner energy, possess significant promise in mitigating CO 2 emissions and achieving carbon recycling. Herein, Ni@N‐C electrocatalysts with encapsulated structures are prepared using covalent organic frameworks (COFs) as templates, where COF‐derived nitrogen‐doped carbon (N‐C) is utilized to wrap Ni nanoparticles. At the potential of −0.97 V vs. RHE, 2Ni@N‐C‐800 is characterized by a high current density (j = 24.2 mA cm ‐2 ) and relatively high CO Faraday efficiency (FE CO = 72%), reflecting its good catalytic activity. The ECR performance of 2Ni@N‐C‐800 is due to the cooperative interaction between Ni nanoparticles and the N‐C structure, which is inferred from control and poisoning measurements. This study provides a new idea for finding efficient and stable ECR catalysts.
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