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  • Sustainedly High‐Rate Electroreduction of CO 2 to Multi‐Carbon Products on Nickel Oxygenate/Copper Interfacial Catalysts
Title: Sustainedly High‐Rate Electroreduction of CO 2 to Multi‐Carbon Products on Nickel Oxygenate/Copper Interfacial Catalysts
Abstract Copper (Cu) is the most attractive electrocatalyst for CO2reduction to multi‐carbon (C2+) products with high economic value in considerable amounts. However, the rational design of a structurally stable Cu‐based catalyst that can achieve high activity and stability towards C2+products remain a grand challenge. Here, a highly stable nickel oxygenate/Cu electrocatalyst is developed with abundant NiOOH/Cu interfaces by in situ electrochemical reconstruction. The nickel oxygenate/Cu electrocatalyst achieves a superior Faradaic efficiency of 86.3 ± 3.0% and a record partial current density of 2085 A g−1for C2+products with long‐term stability. In situ experimental and theoretical studies demonstrates that the exceptional performance in generating C2+products is attributed to the presence of the NiOOH/Cu interfaces which increase *CO coverage, lower energy barrier for *CO coupling and stabilize *OCCO simultaneously. This work provides new insights into the rational design of electrocatalysts to achieve stable and efficient electrocatalytic CO2reduction capabilities.  more » « less
Award ID(s):
1949870 2016192
PAR ID:
10614192
Author(s) / Creator(s):
; ; ; ; ; ; ; ; ; ; ; ; ; ;
Publisher / Repository:
Wiley-VCH GmbH
Date Published:
Journal Name:
Advanced Energy Materials
Volume:
14
Issue:
25
ISSN:
1614-6832
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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