title: Heating-rate-induced porous α-Fe2O3 with controllable pore size and crystallinity grown on graphene for supercapacitors.
abstract: Porous α-Fe2O3/graphene composites (S-PIGCs) have been synthesized by a simple hydrothermal method combined with a slow annealing route. The S-PIGCs as a supercapacitors electrode material exhibit an ultrahigh specific capacitance of 343.7 F g(-1) at a current density of 3 A g(-1), good rate capability, and excellent cycling stability. The enhanced electrochemical performances are attributed to the combined contribution from the optimally architecture of the porous α-Fe2O3, as a result of a slow annealing, and the extraordinary electrical conductivity of the graphene sheets.
authors.affiliation: State Key Laboratory for Metallic Matrix Composite Materials, School of Materials Science and Engineering, Shanghai Jiao Tong University , Shanghai 200240, China.
authors.forename: Shuhua
authors.initials: S
authors.lastname: Yang
authors.forename: Xuefeng
authors.initials: X
authors.lastname: Song
authors.forename: Peng
authors.initials: P
authors.lastname: Zhang
authors.forename: Lian
authors.initials: L
authors.lastname: Gao
keywords: crystallinity; heating-rate-induced porous α-Fe2O3; pore size; supercapacitors