Removal of chlorate pollutants in natural water with Pt-V bimetallic catalysts

Removal of chlorate pollutants in natural water with Pt-V bimetallic catalysts | 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 Article Removal of chlorate pollutants in natural water with Pt-V bimetallic catalysts A. Pla-Hernández, K. Góra-Marek, K. A. Tarach, Antonio Eduardo Palomares This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6605952/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 Pt-V bimetallic catalysts supported on alumina are studied for the chlorate hydrogenation reaction in water phase. It is observed that that there is a synergic effect between Pt and V that enhances the catalytic activity. The activity of both mono and bimetallic catalysts has been studied in polluted natural water containing other ionic species together with the chlorate ion. It is observed that the monometallic catalysts are not active in these conditions as there is a competitive adsorption of the other anions present in natural water for the Pt active sites. Contrarily, Pt-V catalysts are active in natural water being able to reduce the chlorate ions of the media in presence of other ionic species-The materials have been characterized by different techniques observing that the addition of vanadium to the Pt-Al 2 O 3 modifies the electronic properties of the platinum sites, due to a high electronic interaction of both metals. This interaction favours the formation of partially positively charged platinum nanoclusters and strength the acidity of the catalyst surface. Infrared experiments using CO as probe molecule show that there is a correlation between the intensity of the band around 2100 cm-1 , assigned to the interaction CO-Pt +δ and the initial activity of the catalysts, indicating that partially charged Pt nanoclusters are the most active sites for the chlorate reduction. The results show that the contact of the noble and the non-noble metals and their interaction with the alumina support, improves the redox and acid properties of the catalyst enhancing its activity and making possible the reduction of chlorate pollutants in natural water. Physical sciences/Chemistry Physical sciences/Engineering Physical sciences/Materials science Physical sciences/Nanoscience and technology Catalytic hydrogenation chlorate water pollution bimetallic catalysts natural water Full Text Additional Declarations No competing interests reported. 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-6605952","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":453432851,"identity":"00d0edfd-294a-43a6-887f-a32526770f79","order_by":0,"name":"A. 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It is observed that that there is a synergic effect between Pt and V that enhances the catalytic activity. The activity of both mono and bimetallic catalysts has been studied in polluted natural water containing other ionic species together with the chlorate ion. It is observed that the monometallic catalysts are not active in these conditions as there is a competitive adsorption of the other anions present in natural water for the Pt active sites. Contrarily, Pt-V catalysts are active in natural water being able to reduce the chlorate ions of the media in presence of other ionic species-The materials have been characterized by different techniques observing that the addition of vanadium to the Pt-Al 2 O 3 modifies the electronic properties of the platinum sites, due to a high electronic interaction of both metals. This interaction favours the formation of partially positively charged platinum nanoclusters and strength the acidity of the catalyst surface. Infrared experiments using CO as probe molecule show that there is a correlation between the intensity of the band around 2100 cm-1 , assigned to the interaction CO-Pt +δ and the initial activity of the catalysts, indicating that partially charged Pt nanoclusters are the most active sites for the chlorate reduction. 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