{"title":"The performance of PdNi alloy catalysts supported on glassy carbon electrode toward formic acid electro-oxidation","authors":"Azar Gharib, Ali Arab","doi":"10.1016/j.inoche.2024.113501","DOIUrl":null,"url":null,"abstract":"<div><div>In this research, PdNi alloy electrocatalysts with different compositions were prepared using the hydrothermal method and characterized using FE-SEM, EDX, and XRD analyses. The electro-oxidation of formic acid was investigated on the prepared samples using electrochemical techniques. It was observed that the electrocatalytic activity as well as the stability of samples were increased by increasing the Ni content. Among the studied samples, the PdNi<sub>4.09</sub> sample exhibited superior electrocatalytic activity with a mass activity of 2982.46 mA/mg<sub>Pd</sub> which was considerably higher than commercial Pd/C catalyst. Additionally, the PdNi<sub>4.09</sub> sample was the most effective sample against CO intermediate poisoning. The role of Ni was attributed to the formation of Ni–O or Ni–OH entities near the Pd site that accelerated the oxidation of Pd–CO entities and therefore reduced the poisoning of Pd active sites for formic acid oxidation.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"171 ","pages":"Article 113501"},"PeriodicalIF":5.4000,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Inorganic Chemistry Communications","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1387700324014916","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
引用次数: 0
Abstract
In this research, PdNi alloy electrocatalysts with different compositions were prepared using the hydrothermal method and characterized using FE-SEM, EDX, and XRD analyses. The electro-oxidation of formic acid was investigated on the prepared samples using electrochemical techniques. It was observed that the electrocatalytic activity as well as the stability of samples were increased by increasing the Ni content. Among the studied samples, the PdNi4.09 sample exhibited superior electrocatalytic activity with a mass activity of 2982.46 mA/mgPd which was considerably higher than commercial Pd/C catalyst. Additionally, the PdNi4.09 sample was the most effective sample against CO intermediate poisoning. The role of Ni was attributed to the formation of Ni–O or Ni–OH entities near the Pd site that accelerated the oxidation of Pd–CO entities and therefore reduced the poisoning of Pd active sites for formic acid oxidation.
期刊介绍：
Launched in January 1998, Inorganic Chemistry Communications is an international journal dedicated to the rapid publication of short communications in the major areas of inorganic, organometallic and supramolecular chemistry. Topics include synthetic and reaction chemistry, kinetics and mechanisms of reactions, bioinorganic chemistry, photochemistry and the use of metal and organometallic compounds in stoichiometric and catalytic synthesis or organic compounds.
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