利用原子层沉积调整双金属铜电催化剂在二氧化碳还原中的选择性

IF 4.2 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Chemical Communications Pub Date : 2024-11-22 DOI:10.1039/d4cc04820b

Si Young Lee , Julia D. Lenef , Daniel O. Delgado Cornejo , Alondra M. Ortiz-Ortiz , Tao Ma , Timothy S. Arthur , Charles A. Roberts , Neil P. Dasgupta

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引用次数: 0

摘要

采用原子层沉积（ALD）技术在三维气体扩散电极上合成Cu-Zn双金属催化剂。对电化学CO2还原效果进行了评价，与未改性的Cu催化剂相比，产物选择性有显著变化。ZnO的单次ALD循环导致C2H4生成减少，并转向CO选择性，这归因于表面化学状态的变化。我们的发现证明了原子精确表面修饰对电催化剂选择性的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Tuning the selectivity of bimetallic Cu electrocatalysts for CO2 reduction using atomic layer deposition†

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Tuning the selectivity of bimetallic Cu electrocatalysts for CO2 reduction using atomic layer deposition†

Cu–Zn bimetallic catalysts were synthesized on 3-D gas diffusion electrodes using atomic layer deposition (ALD) techniques. Electrochemical CO₂ reduction was evaluated, and a significant variation in the product selectivity was observed compared to unmodified Cu catalysts. As low as a single ALD cycle of ZnO resulted in a reduction of C₂H₄ production and shift towards CO selectivity, which is attributed to changes in the chemical state of the surface. Our findings demonstrate the impact of atomically-precise surface modifications on electrocatalyst selectivity.

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来源期刊

Chemical Communications 化学-化学综合

CiteScore

8.60

自引率

4.10%

发文量

2705

审稿时长

1.4 months

期刊介绍： ChemComm (Chemical Communications) is renowned as the fastest publisher of articles providing information on new avenues of research, drawn from all the world''s major areas of chemical research.