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dc.contributor.authorLi, Daohao
dc.contributor.authorJia, Yi
dc.contributor.authorChang, Guojing
dc.contributor.authorChen, Jun
dc.contributor.authorLiu, Hongwei
dc.contributor.authorWang, Jiancheng
dc.contributor.authorHu, Yongfeng
dc.contributor.authorXia, Yanzhi
dc.contributor.authorYang, Dongjiang
dc.contributor.authorYao, Xiangdong
dc.date.accessioned2019-07-04T12:41:46Z
dc.date.available2019-07-04T12:41:46Z
dc.date.issued2018
dc.identifier.issn2451-9294
dc.identifier.doi10.1016/j.chempr.2018.07.005
dc.identifier.urihttp://hdl.handle.net/10072/381930
dc.description.abstractNewly N-S-C coordination-structured active sites, originating from the integrity of edged thiophene S, graphitic N, and pentagon defects, were reconstructed by N-modified S defects in carbon aerogel with a 3D hierarchical macro-meso-microporous structure. This metal-free material exhibited outstanding oxygen reduction reaction (ORR) activity (e.g., half-wave potentials of 0.76 V in 0.5 M H2SO4 and 0.1 M HClO4; 0.85 V in 0.1 M KOH) with good stability and high current density in both acidic and alkaline electrolytes. The experimental and computational results reveal that the pentagon S defect is essential for the ORR in acidic electrolytes because it provides a remarkable increase in reactivity. One graphitic-type N in the meta-position of the pentagon defect further significantly improves the reactivity as a result of locally precise control of the electronic structure, thus forming highly active sites for ORR in acid.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherCell Press
dc.publisher.placeUnited States
dc.relation.ispartofpagefrom2345
dc.relation.ispartofpageto2356
dc.relation.ispartofissue10102
dc.relation.ispartofjournalChem
dc.relation.ispartofvolume4
dc.subject.fieldofresearchMacromolecular and materials chemistry
dc.subject.fieldofresearchOther environmental sciences not elsewhere classified
dc.subject.fieldofresearchcode3403
dc.subject.fieldofresearchcode419999
dc.titleA Defect-Driven Metal-free Electrocatalyst for Oxygen Reduction in Acidic Electrolyte
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.hasfulltextNo Full Text
gro.griffith.authorJia, Yi


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