可视化CO2电还原中的活性物质

IF 11.5 Q1 CHEMISTRY, PHYSICAL Chem Catalysis Pub Date : 2024-12-19 DOI:10.1016/j.checat.2024.101230

Yu Yang, Yaohui Shi, Fengwang Li

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引用次数: 0

摘要

了解cu基催化剂在电化学CO2还原（ECR）过程中的演变仍然具有挑战性。Lim等人在Joule上的研究设计了一种operando扫描透射x射线显微镜来研究Cu催化剂的动态相变，并揭示了Cu2+物种在增强C-C耦合中起着至关重要的作用。这些发现为作者提供了一种动态重定向Cu氧化态的方法，从而实现ECR催化的更高选择性和效率。

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Visualizing active species in CO2 electroreduction

Understanding the evolution of Cu-based catalysts during electrochemical CO₂ reduction (ECR) remains challenging. The study by Lim et al. in Joule devises an operando scanning transmission X-ray microscopy to investigate the dynamic phase transformations of Cu catalysts and reveals that Cu²⁺ species play a crucial role in enhancing C–C coupling. The findings inform the authors of an approach to dynamically redirect the oxidation state of Cu, achieving, as a result, higher selectivity and efficiency for ECR catalysis.

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来源期刊

Chem Catalysis

CiteScore

10.50

自引率

6.40%

发文量

期刊介绍： Chem Catalysis is a monthly journal that publishes innovative research on fundamental and applied catalysis, providing a platform for researchers across chemistry, chemical engineering, and related fields. It serves as a premier resource for scientists and engineers in academia and industry, covering heterogeneous, homogeneous, and biocatalysis. Emphasizing transformative methods and technologies, the journal aims to advance understanding, introduce novel catalysts, and connect fundamental insights to real-world applications for societal benefit.