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dc.contributor.authorLi, Yahao
dc.contributor.authorChen, Bingxu
dc.contributor.authorDuan, Xuezhi
dc.contributor.authorChen, Shuangming
dc.contributor.authorLiu, Daobin
dc.contributor.authorZang, Ketao
dc.contributor.authorSi, Rui
dc.contributor.authorLou, Fengliu
dc.contributor.authorWang, Xuehang
dc.contributor.authorRønning, Magnus
dc.contributor.authorSong, Li
dc.contributor.authorLuo, Jun
dc.contributor.authorChen, De
dc.identifier.citationApplied Catalysis B: Environmental. 2019, 249 306-315.nb_NO
dc.description.abstractDevelopment of cost-effective electrocatalysts as an alternative to platinum for oxygen reduction reaction (ORR) is of great significance for boosting the applications of green energy devices such as fuel cells and metal-air batteries. Here we report a nitrogen and phosphorus tri-doped hierarchically porous carbon supported highly cost-effective, efficient and durable Fe single-site electrocatalyst derived from biomass. Combined aberration-corrected HAADF-STEM, XPS and XAFS measurements and theoretical calculations reveal the atomically dispersed Fe-N-P-C-O complex as the dominant active sites for ORR. This work also shows the design principle for enhancing the ORR activity of single Fe site catalysts with higher Fe charge, which can be manipulated by the coordinated structure in the active centre. Theoretical calculations reveal that the main effective sites are singleN-P-O-Fe-O centers, where the associated P-O-Fe bond can significantly lower the stability of strongly adsorbed O* and OH* on the catalytically active sites and thus give rise to enhanced ORR performance. The insights reported here open a new avenue for constructing highly efficient molecule-like heterogeneous catalysts in electrochemical energy technologies.nb_NO
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internasjonal*
dc.titleAtomically dispersed Fe-N-P-C complex electrocatalysts for superior oxygen reductionnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.source.journalApplied Catalysis B: Environmentalnb_NO
dc.description.localcodeHvis embargo: © 2019. This is the authors’ accepted and refereed manuscript to the article. Locked until 7.3.2021 due to copyright restrictions. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
cristin.unitnameInstitutt for kjemisk prosessteknologi

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Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal