{"id":1213,"date":"2026-03-25T14:07:48","date_gmt":"2026-03-25T14:07:48","guid":{"rendered":"https:\/\/citations.tools.bio-logic.fr\/?p=1213"},"modified":"2026-03-25T14:07:48","modified_gmt":"2026-03-25T14:07:48","slug":"graphite-felt-etching-co-3-o-4-as-a-cathode-to-improve-electrochemical-characteristics-for-vanadium-redox-flow-batteries","status":"publish","type":"post","link":"https:\/\/citations.tools.bio-logic.fr\/?p=1213","title":{"rendered":"Graphite felt etching Co <sub>3<\/sub> O <sub>4<\/sub> as a cathode to improve electrochemical characteristics for vanadium redox flow batteries"},"content":{"rendered":"<h4>DOI:<\/h4>\n<p><a href=\"https:\/\/doi.org\/10.1002\/vjch.70132\" target=\"_blank\" rel=\"noopener\">10.1002\/vjch.70132<\/a><\/p>\n<h4>Authors:<\/h4>\n<p>Tran Bich Tram Vo, Phuong Nam Ta, Thuy Kim Thoa Ho, V\u0103n M\u1eabn Tr\u1ea7n<\/p>\n<h4>Abstract:<\/h4>\n<p>Abstract In this study, a simple method involving immersion and heat treatment was used to modify graphite felt, enabling the attachment of Co 3 O 4 and altering its morphology. The etching process created nanorod structures, which significantly increased the surface area and improved wettability. A Co(NO 3 ) 2 concentration of 4 m m demonstrated optimal electrochemical activity compared to pristine graphite felt. Following the modification, the electrochemically active surface area reached a high value of 131.71 cm 2 , the charge transfer resistance decreased to 12.27 \u03a9, and the exchange current density increased to 25.02 mA\/cm 2 . Cyclic voltammetry measurements revealed that GF4 exhibited reversible redox activity across various scan rates and maintained stability over 50 cycles at a scan rate of 1.0 mV\/s, with I pa \/ I pc = 1.18 and \u2206 E p = 220 mV. These findings indicate that the modification method improves the performance of graphite felt cathodes in vanadium redox flow batteries, emphasizing its potential for energy storage.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>DOI: 10.1002\/vjch.70132 Authors: Tran Bich Tram Vo, Phuong Nam Ta, Thuy Kim Thoa Ho, V\u0103n M\u1eabn Tr\u1ea7n Abstract: Abstract In this study, a simple method involving immersion and heat treatment was used to modify graphite felt, enabling the attachment of Co 3 O 4 and altering its morphology. The etching process created nanorod structures, which [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31],"tags":[],"class_list":["post-1213","post","type-post","status-publish","format-standard","hentry","category-vsp-3-potentiostat"],"_links":{"self":[{"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=\/wp\/v2\/posts\/1213","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1213"}],"version-history":[{"count":0,"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=\/wp\/v2\/posts\/1213\/revisions"}],"wp:attachment":[{"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1213"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1213"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1213"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}