{"id":13557,"date":"2023-07-30T07:54:06","date_gmt":"2023-07-30T02:24:06","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=13557"},"modified":"2025-04-02T05:21:22","modified_gmt":"2025-04-01T23:51:22","slug":"cobalt-platinum-alloy","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/cobalt-platinum-alloy\/","title":{"rendered":"Cobalt- Platinum Alloy"},"content":{"rendered":"<h2><strong>Key findings:\u00a0<\/strong><\/h2>\n<p>&nbsp;<\/p>\n<ul>\n<li>Researchers have <strong>synthesized a trimetallic PtMnCo catalyst<\/strong> that displayed superior catalytic activity and high CO tolerance when compared to commercially available catalyst.<\/li>\n<li>The choice of Manganese (Mn) as a dopant was based on its abundance and affordability and the multiple oxidation states it offers making it a good candidate for electro-catalysis.<\/li>\n<li><strong>Significance of DMFC<\/strong>\n<ul>\n<li>Among the different classes of fuel cells proposed, DMFCs have long been considered an attractive alternate power source for <strong>small vehicles such as forklifts and as battery chargers for mobile phones<\/strong>, digital cameras, laptops, and other small electronic gadgets.<\/li>\n<li>It has <strong>high energy density<\/strong>, <strong>high efficiency<\/strong>, and low operating temperature.<\/li>\n<li>They are also much safer to operate because they deal with liquid fuel (methanol).<\/li>\n<\/ul>\n<\/li>\n<li>The <strong>methanol oxidation reaction (<\/strong>MOR) at the anode and oxygen reduction reaction (ORR) at the cathode are the main processes that determine the performance of DMFCs.<\/li>\n<li>Platinum is the most often used MOR catalyst. However, fundamental challenges such as slow kinetics, high manufacturing costs (due mostly to the pricey Pt-based catalyst), and CO poisoning of the Pt catalyst make commercialization of DMFCs challenging.<\/li>\n<li>Therefore, the search for an alternative Pt-based catalyst that circumvents the above issues is one of the most pressing research problems with respect to DMFCs.<\/li>\n<li>Alloying Pt with other transition metals such as (Ru, Co, Ni, and Fe) is thought to be a useful strategy for <strong>improving the catalytic performance and durability<\/strong> of Pt catalyst along with reducing the amount of Pt being used in the catalyst.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<hr \/>\n<h3>Q1) What is Platinum?<\/h3>\n<p>Platinum is a precious metal and a chemical element. It is a rare and valuable metal, known for its resistance to corrosion, malleability, ductility, and beautiful silver-white appearance.<\/p>\n<p><strong>Source:\u00a0<\/strong><a href=\"https:\/\/dst.gov.in\/cobalt-platinum-alloy-spiced-manganese-effective-catalyst-methanol-oxidation-reaction-methanol-fuel\" target=\"_blank\" rel=\"nofollow noopener\"><u>Cobalt- Platinum alloy spiced with manganese is an effective catalyst for methanol oxidation reaction of methanol fuel cells<\/u><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Scientists have synthesized a trimetallic PtMnCo catalyst that displayed superior catalytic activity and high CO tolerance when compared to commercially available catalyst.<\/p>\n","protected":false},"author":5,"featured_media":13558,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-13557","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/13557","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=13557"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/13557\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/13558"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=13557"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=13557"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=13557"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}