{"title":"Frontispiece: Surface Chemistry of WC Powder Electrocatalysts Probed In Situ with NAP-XPS","authors":"","doi":"10.1002/ange.202582602","DOIUrl":null,"url":null,"abstract":"<p>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.\n\n <figure>\n <div><picture>\n <source></source></picture><p></p>\n </div>\n </figure></p>","PeriodicalId":7803,"journal":{"name":"Angewandte Chemie","volume":"137 26","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ange.202582602","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Angewandte Chemie","FirstCategoryId":"1085","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/ange.202582602","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
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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