title: Achieving MnO2Nanosheets through Surface Redox Reaction on Nickel Nanochains for Catalysis and Energy Storage.
abstract: The redox reaction between KMnO4and Ni was carried out on a chain-like Ni surface under hydrothermal conditions and γ-MnO2nanosheets were produced through this facile route. The original Ni nanochains, as cores, dominated the final morphology of the composites with MnO2nanosheets loaded on their surface. The uniform assemblies of MnO2, with large amounts of exposed sites, allowed them to be good candidates for application in various fields. The reduction of 4-nitrophenol by NaBH4was selected as model reaction to test the catalytic activity of the samples and the samples could also be made into electrodes for supercapacitor measurement. Both the results revealed the advantages of the γ-MnO2assembled on the Ni chain surfaces. Furthermore, the magnetic cores facilitated the recycling of the sample and increased the stability upon charge-discharge cycles.
authors.affiliation: Faculty of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun, Jilin, P. R. China.
authors.forename: Guodong
authors.initials: G
authors.lastname: Zhang
authors.affiliation: Faculty of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun, Jilin, P. R. China.
authors.forename: Xianchun
authors.initials: X
authors.lastname: Liu
authors.affiliation: Faculty of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun, Jilin, P. R. China.
authors.forename: Yuanhong
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Faculty of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun, Jilin, P. R. China.
authors.forename: Chengzhan
authors.initials: C
authors.lastname: Liu
authors.affiliation: Faculty of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun, Jilin, P. R. China.
authors.forename: Shuangxi
authors.initials: S
authors.lastname: Xing
keywords: heterogeneous catalysis; manganese oxides; nanostructures; nickel; supercapacitor