Construction of CuNiAl-LDHs electrocatalyst with rich-Cu<sup>+</sup> and —OH for highly selective reduction of CO<sub>2</sub> to methanol

Gaiqin Miao; Lifei Liu; Xia An; Xu Wu

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Construction of CuNiAl-LDHs electrocatalyst with rich-Cu⁺ and —OH for highly selective reduction of CO₂ to methanol

Full Length Article | Updated：2026-01-06

- Construction of CuNiAl-LDHs electrocatalyst with rich-Cu⁺ and —OH for highly selective reduction of CO₂ to methanol
- Chinese Journal of Chemical Engineering Vol. 64, Issue 12, Pages: 156-167(2023)
- Affiliations：
  
  College of Chemistry, Taiyuan University of Technology,Taiyuan,China,030024
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2023
- Accepted：
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and —OH for highly selective reduction of CO
DOI：

and —OH for highly selective reduction of CO DOI：

摘要

Abstract

In this work

a high-performance CuNiAl-LDHs catalyst was innovatively synthesized for electrochemical carbon dioxide reduction (CO

RR) of methanol (CH

OH) through the modulated synthesis of Cu-based layered double hydroxide (LDHs). It was found that the optimal CuNiAl-LDHs has superior CH

OH selectivity compared to CuAl-LDHs and CuMgAl-LDHs

with the Faraday efficiency (FE) of 76.4% for CH

OH generation at -1.2 V. And their FE and current density (4.8 mA·cm

-2

) remained stable during up to 24 h of electrolysis. Meanwhile

this study confirms the significant performance advantages of CuNiAl-LDHs over their derived composite oxides. Series characterization further proves that the excellent catalytic performance of CuNiAl-LDHs is importantly associated with their richness in Cu

and hydroxyl group (—OH). The research expands the application fields of LDHs compounds. Meanwhile

the series of discoveries provide a new insight for the preparation of CH

OH by constructing CO

RR.

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Construction of CuNiAl-LDHs electrocatalyst with rich-Cu+ and —OH for highly selective reduction of CO2 to methanol

DOI：

摘要

Abstract

关键词

Keywords

references

Construction of CuNiAl-LDHs electrocatalyst with rich-Cu⁺ and —OH for highly selective reduction of CO₂ to methanol