title: Biomorphic synthesis of mesoporous Co₃O₄ microtubules and their pseudocapacitive performance.
abstract: A novel meosoporous tubular Co3O4 has been fabricated by a simple and cost-effective biomorphic synthesis route, which consists of infiltration of cotton fiber with cobalt nitrate solution and postcalcination at 673 K for 1 h. Its electrochemical performance as a supercapacitor electrode material is investigated by means of cyclic voltammetry and chronopotentiometry tests. Compared with bulk Co3O4 prepared without using cotton template, biomorphic Co3O4 displays 2.8 fold enhancement of pseudocapacitive performance because of the unique tubular morphology, relative high specific surface area (3 and 0.8 m(2)/g for biomorphic Co3O4 and bulk Co3O4, respectively), and mesoporous nature.
authors.affiliation: Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology , Guilin 541004, P.R. China.
authors.forename: Dongliang
authors.initials: D
authors.lastname: Yan
authors.forename: Huan
authors.initials: H
authors.lastname: Zhang
authors.forename: Lin
authors.initials: L
authors.lastname: Chen
authors.forename: Guisheng
authors.initials: G
authors.lastname: Zhu
authors.forename: Shichao
authors.initials: S
authors.lastname: Li
authors.forename: Huarui
authors.initials: H
authors.lastname: Xu
authors.forename: Aibing
authors.initials: A
authors.lastname: Yu
mesh_terms: D040761:Biomimetic Materials; D032701:Biomimetics; D001709:Biotechnology / Q000379:methods*; D002616:Chemical Engineering / Q000379:methods*; D003035:Cobalt / Q000737:chemistry*; D032561:Cotton Fiber; D010087:Oxides / Q000737:chemistry*
chemical_list: D010087:Oxides; D003035:Cobalt; C060728:cobalt oxide
keywords: biomorphic; energy storage and conversion; mesoporous; pseudocapacitive performance