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dc.contributor.authorBo, Zheng
dc.contributor.authorXu, Chenxuan
dc.contributor.authorYang, Huachao
dc.contributor.authorShi, Hao
dc.contributor.authorYan, Jianhua
dc.contributor.authorCen, Kefa
dc.contributor.authorOstrikov, Kostya
dc.date.accessioned2019-09-09T00:24:39Z
dc.date.available2019-09-09T00:24:39Z
dc.date.issued2019
dc.identifier.issn2196-0216
dc.identifier.doi10.1002/celc.201801825
dc.identifier.urihttp://hdl.handle.net/10072/387031
dc.description.abstractSupercapacitors have been considered as a promising alternative of aluminum electrolytic capacitors (AECs) for AC line filtering applications. However, realizing supercapacitors with fast frequency response and superior energy density still remains an open issue. Herein, we demonstrate a hierarchical, vertically‐oriented carbon nanowall foam (CWF) supercapacitor using mixed room temperature ionic liquids (RTILs) for high‐performance AC line filtering. Hierarchical CWF exhibits macrospores as electrolyte reservoirs to shorten ion transport distance, vertically‐oriented, open channels to enable fast ion diffusion and consecutive scaffolds to promote electron transfer. CWF supercapacitor using RTIL mixture realizes a recorded‐high areal energy density of 1.23 μWh cm−2 at 120 Hz (almost ∼2.0 times/∼10.0 times larger than those of organic/aqueous electrolytes, respectively) and fast frequency response (RC time constant=∼1.3 ms). More importantly, CWF supercapacitor achieves a capacitance advantage over commercial AECs up to 1,000 V, substantially larger than those reported in state‐of‐the‐art literatures (maximum of ∼250 V).
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherWiley
dc.relation.ispartofpagefrom2167
dc.relation.ispartofpageto2173
dc.relation.ispartofissue8
dc.relation.ispartofjournalChemElectroChem
dc.relation.ispartofvolume6
dc.subject.fieldofresearchAnalytical Chemistry
dc.subject.fieldofresearchPhysical Chemistry (incl. Structural)
dc.subject.fieldofresearchOther Chemical Sciences
dc.subject.fieldofresearchcode0301
dc.subject.fieldofresearchcode0306
dc.subject.fieldofresearchcode0399
dc.subject.keywordsScience & Technology
dc.subject.keywordsPhysical Sciences
dc.subject.keywordsElectrochemistry
dc.subject.keywordsAC line filtering
dc.subject.keywordsfrequency response
dc.titleHierarchical, Vertically-Oriented Carbon Nanowall Foam Supercapacitor using Room Temperature Ionic Liquid Mixture for AC Line Filtering with Ultrahigh Energy Density
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationBo, Z; Xu, C; Yang, H; Shi, H; Yan, J; Cen, K; Ostrikov, K, Hierarchical, Vertically-Oriented Carbon Nanowall Foam Supercapacitor using Room Temperature Ionic Liquid Mixture for AC Line Filtering with Ultrahigh Energy Density, ChemElectroChem, 2019, 6 (8), pp. 2167-2173
dc.date.updated2019-09-09T00:22:45Z
gro.hasfulltextNo Full Text
gro.griffith.authorOstrikov, Kostya (Ken)


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