S. Jafar Hoseini, Mehrangiz Bahrami, Golandam Askarisarvestani, S. Masoud Nabavizadeh, Hamid R. Shahsavari, Elvira De Giglio, Piero Mastrorilli
{"title":"PtAu Thin Film as Anode Electrocatalyst in Methanol Fuel Cell","authors":"S. Jafar Hoseini, Mehrangiz Bahrami, Golandam Askarisarvestani, S. Masoud Nabavizadeh, Hamid R. Shahsavari, Elvira De Giglio, Piero Mastrorilli","doi":"10.1007/s10876-024-02605-0","DOIUrl":null,"url":null,"abstract":"<p>Expanding the application of methanol fuel cells in the energy economy is only feasible when a low-cost or highly CO-tolerant electrocatalyst replaces Pt catalysts to enhance the electrocatalytic properties of Pt. In this study, a PtAu thin film was produced at the liquid-liquid interface through the simple reduction of [Pt(cod)Cl<sub>2</sub>] and [Au(PPh<sub>3</sub>)Cl] complexes. The resulting thin film was directly transferred onto a glassy carbon electrode (without the application of Nafion™) and used as an electrocatalyst in the methanol oxidation reaction. Experimental and theoretical results both confirmed that PtAu exhibits lower CO poisoning compared to PtPd or Pt films. The high <i>j</i><sub><i>f</i></sub>/<i>j</i><sub><i>b</i></sub> ratio (where <i>j</i><sub><i>f</i></sub> is the maximum current of the anodic peak in the forward route and <i>j</i><sub><i>b</i></sub> is the maximum of peak current in the backward route), and theoretically calculated adsorption energies for PtAu thin film showed higher CO tolerance compared to Pt or PtPd thin film electrocatalysts.</p>","PeriodicalId":618,"journal":{"name":"Journal of Cluster Science","volume":null,"pages":null},"PeriodicalIF":2.7000,"publicationDate":"2024-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Cluster Science","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1007/s10876-024-02605-0","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
引用次数: 0
Abstract
Expanding the application of methanol fuel cells in the energy economy is only feasible when a low-cost or highly CO-tolerant electrocatalyst replaces Pt catalysts to enhance the electrocatalytic properties of Pt. In this study, a PtAu thin film was produced at the liquid-liquid interface through the simple reduction of [Pt(cod)Cl2] and [Au(PPh3)Cl] complexes. The resulting thin film was directly transferred onto a glassy carbon electrode (without the application of Nafion™) and used as an electrocatalyst in the methanol oxidation reaction. Experimental and theoretical results both confirmed that PtAu exhibits lower CO poisoning compared to PtPd or Pt films. The high jf/jb ratio (where jf is the maximum current of the anodic peak in the forward route and jb is the maximum of peak current in the backward route), and theoretically calculated adsorption energies for PtAu thin film showed higher CO tolerance compared to Pt or PtPd thin film electrocatalysts.
期刊介绍:
The journal publishes the following types of papers: (a) original and important research;
(b) authoritative comprehensive reviews or short overviews of topics of current
interest; (c) brief but urgent communications on new significant research; and (d)
commentaries intended to foster the exchange of innovative or provocative ideas, and
to encourage dialogue, amongst researchers working in different cluster
disciplines.