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dc.contributor.authorWang, Yu
dc.contributor.authorPan, Ying
dc.contributor.authorZhu, Liangkui
dc.contributor.authorYu, Honghao
dc.contributor.authorDuan, Bingyi
dc.contributor.authorWang, Runwei
dc.contributor.authorZhang, Zongtao
dc.contributor.authorQiu, Shilun
dc.date.accessioned2021-03-11T11:17:55Z
dc.date.available2021-03-11T11:17:55Z
dc.date.issued2019-05
dc.identifier.citationWang, Y., Pan, Y., Zhu, L., Yu, H., Duan, B., Wang, R., … Qiu, S. (2019). Solvent-free assembly of Co/Fe-containing MOFs derived N-doped mesoporous carbon nanosheets for ORR and HER. Carbon, 146, 671–679. doi:10.1016/j.carbon.2019.02.002
dc.identifier.issn0008-6223
dc.identifier.doi10.1016/j.carbon.2019.02.002
dc.identifier.urihttp://hdl.handle.net/10754/668087
dc.description.abstractThe difficulties in integration of different active sites and structural optimization are huge obstacles in developing multi-functional electrocatalysts. In the present work, a molten salt-assisted solid state assembly strategy is developed to prepare Fe/Co Zn MOFs composites. Subsequent carbonization of these MOFs yields Fe/Co decorated nitrogen doped mesoporous carbon (Fe/Co–NCs). The obtained NCs possess several merits, such as i, Sheet-like structure with high porosity and tubular large mesopores (15 nm); ii, N-doped carbon skeleton; iii, Highly dispersed Fe/Co nanoparticles. Benefit from these structural superiority and the synergy between active sites, Fe/Co-NC showed high activity toward both ORR and HER. Among those, the Fe-NC showed excellent ORR activity, experienced four-electron ORR process showing high onset potential (0.963 V), half-wave potential (0.877 V vs. RHE) and outstanding durability (95% current retention after 20000 s). The Co-NC showed high HER activity, achieving a current density of 10 mA cm −3 with low over potential of 242 mV. The remarkable ORR and HER performance can be mainly attributed to the simultaneous incorporation of multi active centers, i.e. nitrogen moieties and metal species (Fe/Co) to synergistically boost the ORR and HER process, and high porosity to accelerate mass and electron transfer.
dc.description.sponsorshipThis work was financially supported by the National Natural Science Foundation of China (21390394, 21771082 and 21771081), National Basic Research Program of China (2012CB821700 and 2011CB808703), NSFC (21261130584 and 91022030), “111” project (B07016), Award Project of KAUST (CRG-1-2012-LAI-009) and Ministry of Education, Science and Technology Development Center Project (20120061130012).
dc.publisherElsevier BV
dc.relation.urlhttps://linkinghub.elsevier.com/retrieve/pii/S0008622319301150
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Carbon. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Carbon, [146, , (2019-05)] DOI: 10.1016/j.carbon.2019.02.002 . © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleSolvent-free assembly of Co/Fe-containing MOFs derived N-doped mesoporous carbon nanosheets for ORR and HER
dc.typeArticle
dc.identifier.journalCarbon
dc.eprint.versionPost-print
dc.contributor.institutionState Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130012, China
dc.identifier.volume146
dc.identifier.pages671-679
kaust.grant.numberCRG-1-2012-LAI-009
dc.identifier.eid2-s2.0-85062278174
kaust.acknowledged.supportUnitCRG


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