Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/123274
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Zhu, C. | - |
dc.contributor.author | Yang, L. | - |
dc.contributor.author | Seo, J.K. | - |
dc.contributor.author | Zhang, X. | - |
dc.contributor.author | Wang, S. | - |
dc.contributor.author | Shin, J.W. | - |
dc.contributor.author | Chao, D. | - |
dc.contributor.author | Zhang, H. | - |
dc.contributor.author | Meng, Y.S. | - |
dc.contributor.author | Fan, H.J. | - |
dc.date.issued | 2017 | - |
dc.identifier.citation | Materials horizons, 2017; 4(3):415-422 | - |
dc.identifier.issn | 2051-6347 | - |
dc.identifier.issn | 2051-6355 | - |
dc.identifier.uri | http://hdl.handle.net/2440/123274 | - |
dc.description | Published on 07 February 2017 | - |
dc.description.abstract | Despite the extensive research on MnO₂ as a pseudocapacitor electrode material, there has been no report on heterostructures of multiple phase MnO₂. Here we report the combination of two high-capacitance phases of MnO₂, namely, α-MnO₂ nanowires and δ-MnO₂ ultrathin nanoflakes, to form a core-branch heterostructure nanoarray. This material and structure design not only increases the mass loading of active materials (from 1.86 to 3.37 mg cm²), but also results in evident pseudocapacitance enhancement (from 28 F g⁻¹ for pure nanowires to 178 F g⁻ for heterostructures at 5 mV s⁻¹). The areal capacitance is up to 783 mF cm⁻² at 1 mV s⁻¹. Upon 20 000 cycles, the heterostructure array electrode still delivers a reversible capacitance above 100 F g⁻¹ at 4.5 A g⁻¹. Kinetic analysis reveals that capacitances due to both capacitive and diffusion controlled processes have been enlarged for the self-branched heterostructure array. This work presents a new route to improve the electrochemical performance of MnO₂ as a binder-free supercapacitor electrode. | - |
dc.description.statementofresponsibility | Changrong Zhu, Lu Yang, Joon Kyo Seo, Xiao Zhang, Shen Wang, JaeWook Shin, Dongliang Chao, Hua Zhang, Ying Shirley Meng and Hong Jin Fan | - |
dc.language.iso | en | - |
dc.publisher | Royal Society of Chemistry | - |
dc.rights | This journal is©The Royal Society of Chemistry 2017 | - |
dc.source.uri | http://dx.doi.org/10.1039/c6mh00556j | - |
dc.title | Self-branched α-MnO₂/δ-MnO₂ heterojunction nanowires with enhanced pseudocapacitance | - |
dc.title.alternative | Self-branched alpha-MnO(2)/delta-MnO(2) heterojunction nanowires with enhanced pseudocapacitance | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1039/c6mh00556j | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Chao, D. [0000-0001-7793-0044] | - |
Appears in Collections: | Aurora harvest 4 Chemical Engineering publications |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.