title: Reducing and Uniforming the Co3O4Particle Size by Sulfonated Graphenal Polymers for Electrochemical Applications.
abstract: A novel two-dimensional (2D) nanomaterial, namely sulfonated graphenal polymer (SGP), is used to tune the hydrothermal growth of Co3O4nanoparticles. SGP provides abundant nucleation sites to grow Co3O4nanoparticles and effectively reduces the particle size and dimension. As a result, with considering the improved size uniformity of Co3O4and the tight wrapping of SGP around Co3O4as well, the Co3O4/SGP hybrid electrode exhibits a high specific electrochemical capacitance of 234.28 F/g at a current density of 0.2 A/g, 237% higher than that of the pure Co3O4electrode. By using the hybrid as the anode of an all-solid-state asymmetric supercapacitor, the capacitance can be well maintained up to 93% after 5000 cycles even at 2 A/g.
authors.affiliation: Department of Chemistry, College of Sciences, Shanghai University, Shanghai, 200444, China.|Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China.
authors.forename: Xin
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China.|School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, China.
authors.forename: Xubo
authors.initials: X
authors.lastname: Liu
authors.affiliation: Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China.
authors.forename: Sha
authors.initials: S
authors.lastname: Zeng
authors.affiliation: Department of Chemistry, College of Sciences, Shanghai University, Shanghai, 200444, China.
authors.forename: Jianhui
authors.initials: J
authors.lastname: Fang
authors.affiliation: School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, China.
authors.forename: Chuanling
authors.initials: C
authors.lastname: Men
authors.affiliation: Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China. zhangxhcm@gmail.com.
authors.forename: Xiaohua
authors.identifier: http://orcid.org/0000-0001-9008-791X
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China.
authors.forename: Qingwen
authors.initials: Q
authors.lastname: Li
keywords: Cobalt oxide; Electrochemical; Hydrothermal growth; Sulfonated graphenal polymer