Show simple item record

dc.contributor.authorLiu, Y.
dc.contributor.authorWang, Z.
dc.contributor.authorZhong, Y.
dc.contributor.authorTade, Moses
dc.contributor.authorZhou, W.
dc.contributor.authorShao, Zongping
dc.date.accessioned2017-11-28T06:37:25Z
dc.date.available2017-11-28T06:37:25Z
dc.date.created2017-11-28T06:21:45Z
dc.date.issued2017
dc.identifier.citationLiu, Y. and Wang, Z. and Zhong, Y. and Tade, M. and Zhou, W. and Shao, Z. 2017. Molecular Design of Mesoporous NiCo<inf>2</inf>O<inf>4</inf>and NiCo<inf>2</inf>S<inf>4</inf>with Sub-Micrometer-Polyhedron Architectures for Efficient Pseudocapacitive Energy Storage. Advanced Functional Materials. 27 (28).
dc.identifier.urihttp://hdl.handle.net/20.500.11937/58868
dc.identifier.doi10.1002/adfm.201701229
dc.description.abstract

© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Spinel-type NiCo 2 O 4 (NCO) and NiCo 2 S 4 (NCS) polyhedron architectures with sizes of 500–600 nm and rich mesopores with diameters of 1–2 nm are prepared facilely by the molecular design of Ni and Co into polyhedron-shaped zeolitic imidazolate frameworks as solid precursors. Both as-prepared NCO and NCS nanostructures exhibit excellent pseudocapacitance and stability as electrodes in supercapacitors. In particular, the exchange of O 2- in the lattice of NCO with S 2- obviously improves the electrochemical performance. NCS shows a highly attractive capacitance of 1296 F g -1 at a current density of 1 A g -1 , ultrahigh rate capability with 93.2% capacitance retention at 10 A g -1 , and excellent cycling stability with a capacitance retention of 94.5% after cycling at 1 A g -1 for 6000 times. The asymmetric supercapacitor with an NCS negative electrode and an active carbon positive electrode delivers a very attractive energy density of 44.8 Wh kg -1 at power density 794.5 W kg -1 , and a favorable energy density of 37.7 Wh kg -1 is still achieved at a high power density of 7981.1 W kg -1 . The specific mesoporous polyhedron architecture contributes significantly to the outstanding electrochemical performances of both NCO and NCS for capacitive energy storage.

dc.publisherWiley
dc.titleMolecular Design of Mesoporous NiCo<inf>2</inf>O<inf>4</inf>and NiCo<inf>2</inf>S<inf>4</inf>with Sub-Micrometer-Polyhedron Architectures for Efficient Pseudocapacitive Energy Storage
dc.typeJournal Article
dcterms.source.volume27
dcterms.source.number28
dcterms.source.issn1616-301X
dcterms.source.titleAdvanced Functional Materials
curtin.accessStatusFulltext not available
curtin.facultyFaculty of Science and Engineering


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record