10.1002\/ente.202201520<\/a><\/p>\nAuthors:<\/h4>\n
Pei Zhou, Hongning Chen<\/p>\n
Abstract:<\/h4>\n
Quinoxaline (Q) is an excellent candidate for anolyte active materials in nonaqueous redox flow batteries (NRFBs) because of its high solubility, low\u2010reaction potential, and two transfer electrons in organic solvents. However, systematic and in\u2010depth studies on the electrochemical performance of Q under nonaqueous conditions are still needed. Herein, a systematical study is conducted on the effect of ion species on Q reaction in nonaqueous solvent acetonitrile through a combination of electrochemical measurements and theoretical analysis. In accordance with the rotating disk electrode analysis, the diffusion coefficients of Q under Na + and tetrabutylammonium (TBA) + conditions reach 5.031 \u00d7 10 \u22126 and 8.563 \u00d7 10 \u22126 cm 2 s \u22121 , respectively, and the kinetic rate constants are 7.81 \u00d7 10 \u22123 and 4.76 \u00d7 10 \u22123 cm s \u22121 , respectively. According to in situ UV\u2013vis analysis, Q presents the best electrochemical reversibility under tetrabutylammonium hexafluorophosphate (TBAPF 6 ) and a low\u2010reaction potential of \u22121.98 V versus Ag\/Ag + , making it a very promising anolyte active material. By coupling with the 1,4\u2010di\u2010tert\u2010butyl\u20102,5\u2010bis (2\u2010methoxyethoxy)benzene (DBBMEB) catholyte, the DBBMEB\u2010Q NRFB, which the battery voltage reaches above 2.5 V under both Na + and TBA + conditions, is demonstrated. The methodology adopted in this work provides a design method for the high\u2010voltage and high\u2010energy\u2010density redox flow batteries.<\/p>\n","protected":false},"excerpt":{"rendered":"
DOI: 10.1002\/ente.202201520 Authors: Pei Zhou, Hongning Chen Abstract: Quinoxaline (Q) is an excellent candidate for anolyte active materials in nonaqueous redox flow batteries (NRFBs) because of its high solubility, low\u2010reaction potential, and two transfer electrons in organic solvents. However, systematic and in\u2010depth studies on the electrochemical performance of Q under nonaqueous conditions are still needed. […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[34],"class_list":["post-268","post","type-post","status-publish","format-standard","hentry","category-sec2020","tag-battery"],"_links":{"self":[{"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=\/wp\/v2\/posts\/268","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=268"}],"version-history":[{"count":0,"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=\/wp\/v2\/posts\/268\/revisions"}],"wp:attachment":[{"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=268"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=268"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=268"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}