Investigation of NiW@Pd nanocrystals for the electro-catalytic application in the fuel cell

Investigation of NiW@Pd nanocrystals for the electro-catalytic application in the fuel cell | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Investigation of NiW@Pd nanocrystals for the electro-catalytic application in the fuel cell Ahmed B.M. Ibrahim, M.A. Habib, Sadaf Munir, Fawad Ahmad This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6317277/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract The effective inter-conversion of electricity and chemicals via an electrochemical reaction, is significant for energy storage devices such as batteries and fuel cells. These fuel cells are regarded as promising solution to energy crisis in 21st century. The slow kinetics of oxygen reduction reaction (ORR) is one of the topmost barriers in this discipline and Pt-based catalysts are needed to boost the durability and activity of ORR. To cope with high cost and less accessibility of Pt/C catalyst, Pd based alloys are being expressed as potential replacements for Pt-based electro catalysts in fuel cells as cathodes for oxygen reduction reactions (ORR). But its performance and stability are less than those of Pt. The morphology and composition can be altered by alloying process to enhance their catalytic properties towards ORR. In this study, alloys of Pd with tungsten(W) and nickel(Ni) were synthesized and deposited the prepared material (NiWPd) onto the glassy carbon. Electrochemical investigations confirmed that NiWPd catalysts have improved electro catalytic activities towards oxygen reduction reaction (ORR) with higher specific and mass activities in comparison to Pd/C and Pt/C catalysts. 1.5% NiWPd showed highest ORR performance. Its mass activity came out to be 2.2mA/cm 2 that was superior to Pd/C and Pt/C electro catalyst, due to dopants and geometrical impact. Full Text Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-6317277","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":436407183,"identity":"d2c26d88-0271-42f4-bb81-28e4e064175e","order_by":0,"name":"Ahmed B.M. 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These fuel cells are regarded as promising solution to energy crisis in 21st century. The slow kinetics of oxygen reduction reaction (ORR) is one of the topmost barriers in this discipline and Pt-based catalysts are needed to boost the durability and activity of ORR. To cope with high cost and less accessibility of Pt/C catalyst, Pd based alloys are being expressed as potential replacements for Pt-based electro catalysts in fuel cells as cathodes for oxygen reduction reactions (ORR). But its performance and stability are less than those of Pt. The morphology and composition can be altered by alloying process to enhance their catalytic properties towards ORR. In this study, alloys of Pd with tungsten(W) and nickel(Ni) were synthesized and deposited the prepared material (NiWPd) onto the glassy carbon. Electrochemical investigations confirmed that NiWPd catalysts have improved electro catalytic activities towards oxygen reduction reaction (ORR) with higher specific and mass activities in comparison to Pd/C and Pt/C catalysts. 1.5% NiWPd showed highest ORR performance. 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