{"id":147562,"date":"2022-10-04T23:26:01","date_gmt":"2022-10-05T04:26:01","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2022\/10\/100k-cycles-and-beyond-extraordinary-cycle-stability-for-mno2-nanowires-imparted-by-a-gel-electrolyte"},"modified":"2022-10-04T23:26:01","modified_gmt":"2022-10-05T04:26:01","slug":"100k-cycles-and-beyond-extraordinary-cycle-stability-for-mno2-nanowires-imparted-by-a-gel-electrolyte","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2022\/10\/100k-cycles-and-beyond-extraordinary-cycle-stability-for-mno2-nanowires-imparted-by-a-gel-electrolyte","title":{"rendered":"100k Cycles and Beyond: Extraordinary Cycle Stability for MnO2 Nanowires Imparted by a Gel Electrolyte"},"content":{"rendered":"<p><a class=\"blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/100k-cycles-and-beyond-extraordinary-cycle-stability-for-mno2-nanowires-imparted-by-a-gel-electrolyte3.jpg\"><\/a><\/p>\n<p>We demonstrate reversible cycle stability for up to 200 000 cycles with 94\u201396% average Coulombic efficiency for symmetrical \u03b4-MnO2 nanowire capacitors operating across a 1.2 V voltage window in a poly(methyl methacrylate) (PMMA) gel electrolyte. The nanowires investigated here have a Au@\u03b4-MnO2 core@shell architecture in which a central gold nanowire current collector is surrounded by an electrodeposited layer of \u03b4-MnO2 that has a thickness of between 143 and 300 nm. Identical capacitors operating in the absence of PMMA (propylene carbonate (PC), 1.0 M LiClO4) show dramatically reduced cycle stabilities ranging from 2000 to 8,000 cycles. In the liquid PC electrolyte, the \u03b4-MnO2 shell fractures, delaminates, and separates from the gold nanowire current collector. These deleterious processes are not observed in the PMMA electrolyte.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>We demonstrate reversible cycle stability for up to 200 000 cycles with 94\u201396% average Coulombic efficiency for symmetrical \u03b4-MnO2 nanowire capacitors operating across a 1.2 V voltage window in a poly(methyl methacrylate) (PMMA) gel electrolyte. The nanowires investigated here have a Au@\u03b4-MnO2 core@shell architecture in which a central gold nanowire current collector is surrounded by [\u2026]<\/p>\n","protected":false},"author":513,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-147562","post","type-post","status-publish","format-standard","hentry","category-nanotechnology"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/147562","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/513"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=147562"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/147562\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=147562"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=147562"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=147562"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}