dc.contributor.author | Li, Daohao | |
dc.contributor.author | Jia, Yi | |
dc.contributor.author | Chang, Guojing | |
dc.contributor.author | Chen, Jun | |
dc.contributor.author | Liu, Hongwei | |
dc.contributor.author | Wang, Jiancheng | |
dc.contributor.author | Hu, Yongfeng | |
dc.contributor.author | Xia, Yanzhi | |
dc.contributor.author | Yang, Dongjiang | |
dc.contributor.author | Yao, Xiangdong | |
dc.date.accessioned | 2019-07-04T12:41:46Z | |
dc.date.available | 2019-07-04T12:41:46Z | |
dc.date.issued | 2018 | |
dc.identifier.issn | 2451-9294 | |
dc.identifier.doi | 10.1016/j.chempr.2018.07.005 | |
dc.identifier.uri | http://hdl.handle.net/10072/381930 | |
dc.description.abstract | Newly 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.peerreviewed | Yes | |
dc.language | English | |
dc.language.iso | eng | |
dc.publisher | Cell Press | |
dc.publisher.place | United States | |
dc.relation.ispartofpagefrom | 2345 | |
dc.relation.ispartofpageto | 2356 | |
dc.relation.ispartofissue | 10102 | |
dc.relation.ispartofjournal | Chem | |
dc.relation.ispartofvolume | 4 | |
dc.subject.fieldofresearch | Macromolecular and materials chemistry | |
dc.subject.fieldofresearch | Other environmental sciences not elsewhere classified | |
dc.subject.fieldofresearchcode | 3403 | |
dc.subject.fieldofresearchcode | 419999 | |
dc.title | A Defect-Driven Metal-free Electrocatalyst for Oxygen Reduction in Acidic Electrolyte | |
dc.type | Journal article | |
dc.type.description | C1 - Articles | |
dc.type.code | C - Journal Articles | |
gro.hasfulltext | No Full Text | |
gro.griffith.author | Jia, Yi | |