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dc.contributor.authorLiang, Hanfeng
dc.contributor.authorXia, Chuan
dc.contributor.authorEmwas, Abdul-Hamid M.
dc.contributor.authorAnjum, Dalaver H.
dc.contributor.authorMiao, Xiaohe
dc.contributor.authorAlshareef, Husam N.
dc.date.accessioned2018-04-16T11:27:44Z
dc.date.available2018-04-16T11:27:44Z
dc.date.issued2018-04-12
dc.identifier.citationLiang H, Xia C, Emwas A-H, Anjum DH, Miao X, et al. (2018) Phosphine Plasma Activation of α-Fe 2 O 3 for High Energy Asymmetric Supercapacitors. Nano Energy. Available: http://dx.doi.org/10.1016/j.nanoen.2018.04.032.
dc.identifier.issn2211-2855
dc.identifier.doi10.1016/j.nanoen.2018.04.032
dc.identifier.urihttp://hdl.handle.net/10754/627531
dc.description.abstractWe report a phosphine (PH3) plasma activation strategy for significantly boosting the electrochemical performance of supercapacitor electrodes. Using Fe2O3 as a demonstration, we show that the plasma activation simultaneously improves the conductivity, creates atomic-scale vacancies (defects), as well as increases active surface area, and thus leading to a greatly enhanced performance with a high areal capacitance of 340 mF cm-2 at 1 mA cm-2, compared to 66 mF cm-2 of pristine Fe2O3. Moreover, the asymmetric supercapacitor devices based on plasma-activated Fe2O3 anodes and electrodeposited MnO2 cathodes can achieve a high stack energy density of 0.42 mWh cm-3 at a stack power density of 10.3 mW cm-3 along with good stability (88% capacitance retention after 9000 cycles at 10 mA cm-2). Our work provides a simple yet effective strategy to greatly enhance the electrochemical performance of Fe2O3 anodes and to further promote their application in asymmetric supercapacitors.
dc.description.sponsorshipResearch reported in this publication was supported by King Abdullah University of Science and Technology (KAUST).
dc.publisherElsevier BV
dc.relation.urlhttp://www.sciencedirect.com/science/article/pii/S2211285518302611
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Nano Energy. 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 Nano Energy, [, , (2018-04-12)] DOI: 10.1016/j.nanoen.2018.04.032 . © 2018. 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.subjecthematite
dc.subjectFe2O3
dc.subjectplasma activation
dc.subjectsupercapacitors
dc.subjectenergy storage
dc.titlePhosphine Plasma Activation of α-Fe 2 O 3 for High Energy Asymmetric Supercapacitors
dc.typeArticle
dc.contributor.departmentCore Labs
dc.contributor.departmentElectron Microscopy
dc.contributor.departmentFunctional Nanomaterials and Devices Research Group
dc.contributor.departmentImaging and Characterization Core Lab
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentNMR
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalNano Energy
dc.eprint.versionPost-print
kaust.personLiang, Hanfeng
kaust.personXia, Chuan
kaust.personEmwas, Abdul-Hamid M.
kaust.personAnjum, Dalaver H.
kaust.personMiao, Xiaohe
kaust.personAlshareef, Husam N.
dc.date.published-online2018-04-12
dc.date.published-print2018-07


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