Direct OC-CHO Coupling Towards Highly C Products Selective Electroreduction over Stable Cu/Cu Interface

Overview

Journal Nat Commun

Specialty Biology

Date 2023 Nov 23

PMID 37996421

Authors

Xin Yu Zhang

Zhen Xin Lou

Jiacheng Chen

Yuanwei Liu

Xuefeng Wu

Jia Yue Zhao

Hai Yang Yuan

Minghui Zhu

Sheng Dai

Hai Feng Wang

Chenghua Sun

Peng Fei Liu

Hua Gui Yang

Affiliations

Soon will be listed here.

Abstract

Electroreduction of CO to valuable multicarbon (C) products is a highly attractive way to utilize and divert emitted CO. However, a major fraction of C selectivity is confined to less than 90% by the difficulty of coupling C-C bonds efficiently. Herein, we identify the stable Cu/Cu interfaces derived from copper phosphate-based (CuPO) electrocatalysts, which can facilitate C production with a low-energy pathway of OC-CHO coupling verified by in situ spectra studies and theoretical calculations. The CuPO precatalyst shows a high Faradaic efficiency (FE) of 69.7% towards CH in an H-cell, and exhibits a significant FE of 90.9% under industrially relevant current density (j = -350 mA cm) in a flow cell configuration. The stable Cu/Cu interface breaks new ground for the structural design of electrocatalysts and the construction of synergistic active sites to improve the activity and selectivity of valuable C products.

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