Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/141087
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dc.contributor.authorFu, Gengtaoen_US
dc.contributor.authorLiu, Yuen_US
dc.contributor.authorChen, Yifanen_US
dc.contributor.authorTang, Yawenen_US
dc.contributor.authorGoodenough, John B.en_US
dc.contributor.authorLee, Jong-Minen_US
dc.date.accessioned2020-06-04T01:44:27Z-
dc.date.available2020-06-04T01:44:27Z-
dc.date.issued2018-
dc.identifier.citationFu, G., Liu, Y., Chen, Y., Tang, Y., Goodenough, J. B., & Lee, J.-M. (2018). Robust N-doped carbon aerogels strongly coupled with iron – cobalt particles as efficient bifunctional catalysts for rechargeable Zn – air batteries. Nanoscale, 10(42), 19937-19944. doi:10.1039/c8nr05812aen_US
dc.identifier.issn2040-3364en_US
dc.identifier.urihttps://hdl.handle.net/10356/141087-
dc.description.abstractThe rational design of highly-active and stable reversible oxygen electrocatalysts for both the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER) plays a key role in rechargeable metal–air batteries, yet remains a great challenge. Herein, a novel dual-crosslinked hydrogel strategy is proposed to synthesize a new type of carbon aerogel that anchors the iron–cobalt (FeCo) particles as a bifunctional oxygen catalyst. The proposed hydrogel composed of an organic/inorganic network can be easily obtained by initiating sol–gel polymerization of cyanometalates, chitosan and graphene oxide. After pyrolysis, FeCo nanocrystals can be in situ uniformly immobilized within the N-doped “dual-network” carbon aerogels (FeCo/N-DNC) with a robust 3D porous framework. When used as an electrocatalyst, the newly developed FeCo/N-DNC aerogels exhibit a positive onset potential (0.89 V) and half-wave potential (0.81 V) for the ORR and a low overpotential (0.39 V) at 10 mA cm−2 for the OER, while presenting excellent electrochemical stability after being tested for 10 000 s. More importantly, the FeCo/N-DNC driven Zn–air battery reveals a smaller charge/discharge voltage gap, higher power/energy density and better cycling stability than the costlier Pt/C + RuO2 mixture catalyst. Our findings provide a facile and feasible synthetic strategy for obtaining highly active and stable electrocatalysts.en_US
dc.language.isoenen_US
dc.relation.ispartofNanoscaleen_US
dc.rights© 2018 The Royal Society of Chemistry. All rights reserved.en_US
dc.subjectEngineering::Chemical engineeringen_US
dc.titleRobust N-doped carbon aerogels strongly coupled with iron – cobalt particles as efficient bifunctional catalysts for rechargeable Zn – air batteriesen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Chemical and Biomedical Engineeringen_US
dc.contributor.organizationMaritime Instituteen_US
dc.identifier.doi10.1039/c8nr05812a-
dc.identifier.pmid30346015-
dc.identifier.scopus2-s2.0-85056106387-
dc.identifier.issue42en_US
dc.identifier.volume10en_US
dc.identifier.spage19937en_US
dc.identifier.epage19944en_US
dc.subject.keywordsN-dopeden_US
dc.subject.keywordsZn–air Batteriesen_US
item.fulltextNo Fulltext-
item.grantfulltextnone-
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