{"title":"MoOy-Pt(CuNi)x heterojunction nanostructured catalyst for promoting the oxygen reduction reaction activity property","authors":"Dezhen Wu , Li Qin Zhou , Xiaochen Shen , Hongfei Jia , Zhenmeng Peng","doi":"10.1016/j.catcom.2023.106835","DOIUrl":null,"url":null,"abstract":"<div><p>The catalyst intrinsic area-specific activity for the oxygen reduction reaction (ORR) was constrained by the scaling relations governing the adsorption of reaction intermediates. In this study, we strategically modified the electronic band structures of Pt(CuNi)<sub>x</sub> alloy nanoparticles by varying their composition, resulting in a specific activity trend resembling a volcano shape. The introduction of MoO<sub>y</sub> shattered the existing scaling relations, leading to a significant enhancement in ORR activity of Pt alloys, surpassing the activity of Pt(CuNi)<sub>x</sub> catalysts. These findings proved the effectiveness of MoO<sub>y</sub> deposition on Pt(CuNi)<sub>x</sub> in disrupting the scaling relations, ultimately improving ORR activity.</p></div>","PeriodicalId":263,"journal":{"name":"Catalysis Communications","volume":"186 ","pages":"Article 106835"},"PeriodicalIF":3.4000,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1566736723002376/pdfft?md5=249310ef559ae8e3c972f9a3e300e95b&pid=1-s2.0-S1566736723002376-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Catalysis Communications","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1566736723002376","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The catalyst intrinsic area-specific activity for the oxygen reduction reaction (ORR) was constrained by the scaling relations governing the adsorption of reaction intermediates. In this study, we strategically modified the electronic band structures of Pt(CuNi)x alloy nanoparticles by varying their composition, resulting in a specific activity trend resembling a volcano shape. The introduction of MoOy shattered the existing scaling relations, leading to a significant enhancement in ORR activity of Pt alloys, surpassing the activity of Pt(CuNi)x catalysts. These findings proved the effectiveness of MoOy deposition on Pt(CuNi)x in disrupting the scaling relations, ultimately improving ORR activity.
期刊介绍：
Catalysis Communications aims to provide rapid publication of significant, novel, and timely research results homogeneous, heterogeneous, and enzymatic catalysis.
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