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A Cu 2 O‐derived Polymeric Carbon Nitride Heterostructured Catalyst for the Electrochemical Reduction of Carbon Dioxide to Ethylene
Author(s) -
Lin Wenwen,
Chen Hao,
Li Zihao,
Sasaki Kotaro,
Yao Siyu,
Zhang Zihao,
Li Jing,
Fu Jie
Publication year - 2021
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.202100659
Subject(s) - catalysis , electrochemical reduction of carbon dioxide , materials science , carbon nitride , electrochemistry , faraday efficiency , carbon dioxide , carbon fibers , nitride , oxide , inorganic chemistry , chemical engineering , metal , ethylene , chemistry , nanotechnology , electrode , photocatalysis , carbon monoxide , organic chemistry , composite material , layer (electronics) , composite number , engineering , metallurgy
The electroreduction of carbon dioxide to hydrocarbons has been proposed as a promising way to utilize CO 2 and maintain the ecosystem carbon balance. However, the selective reduction of CO 2 to C 2 hydrocarbons is still challenging. In this study, a highly efficient heterostructured catalyst has been developed, composed of a carbon nitride (CN)‐encapsulated copper oxide hybrid (Cu x O/CN). The interaction between the metal and carbon nitride in the heterostructured catalysts improves the intrinsic electrical conductivity and the charge transfer processes at metal–support interfaces. A remarkable enhancement in the selectivity of hydrocarbons is achieved with these modified Cu‐based electrocatalysts, with an onset potential of −0.4 V and high C 2 H 4 faradaic efficiency of 42.2 %, and these catalysts can also effectively suppress H 2 evolution during the CO 2 reduction reaction. This work provides a simple and cost‐effective method for synthesizing CN‐encapsulated catalysts that provides the possibility of efficiently converting CO 2 into C 2 hydrocarbons.