前言：用NAP-XPS原位探测WC粉末电催化剂的表面化学

IF 16.9 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Angewandte Chemie International Edition Pub Date : 2025-06-23 DOI:10.1002/anie.202582602

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引用次数: 0

摘要

电化学条件下电极表面化学的变化对电催化性能有重要影响。在他们的Communication （e202500965）中，Julia Kunze-Liebhäuser等人利用原位电化学x射线光电子能谱监测了碳化钨（WC）粉末电极在析氢反应（HER）和氧化电位下的表面状态。在电化学极化时，普遍存在的氧化层溶解，导致在HER条件下具有催化活性的碳化物表面暴露。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Frontispiece: Surface Chemistry of WC Powder Electrocatalysts Probed In Situ with NAP-XPS

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Frontispiece: Surface Chemistry of WC Powder Electrocatalysts Probed In Situ with NAP-XPS

Changes in electrode surface chemistry under electrochemical conditions critically influence electrocatalytic performance. In their Communication (e202500965), Julia Kunze-Liebhäuser et al. employed in-situ electrochemical X-ray photoelectron spectroscopy to monitor the surface state of tungsten carbide (WC) powder electrodes during the hydrogen evolution reaction (HER) and at oxidative potentials. Upon electrochemical polarization, the ubiquitous oxide layer dissolves, which causes exposure of the catalytically active carbide surface under HER conditions.

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来源期刊

Angewandte Chemie International Edition 化学-化学综合

CiteScore

26.60

自引率

6.60%

发文量

3549

审稿时长

1.5 months

期刊介绍： Angewandte Chemie, a journal of the German Chemical Society (GDCh), maintains a leading position among scholarly journals in general chemistry with an impressive Impact Factor of 16.6 (2022 Journal Citation Reports, Clarivate, 2023). Published weekly in a reader-friendly format, it features new articles almost every day. Established in 1887, Angewandte Chemie is a prominent chemistry journal, offering a dynamic blend of Review-type articles, Highlights, Communications, and Research Articles on a weekly basis, making it unique in the field.