title: Cobalt-Based Layered Metal-Organic Framework as an Ultrahigh Capacity Supercapacitor Electrode Material.
abstract: Metal-organic frameworks (MOFs) have recently received increasing interest due to their potential application in the energy storage and conversion field. Herein, cobalt-based layered MOF ({[Co(Hmt)(tfbdc)(H2O)2]·(H2O)2}n, Co-LMOF; Hmt = hexamethylenetetramine; H2tfbdc = 2,3,5,6-tetrafluoroterephthalic acid) has been evaluated as an electrode material for supercapacitors. The Co-LMOF electrode exhibits a high specific capacitance and excellent cycling stability. Its maximum specific capacitance is 2474 F g(-1) at a current density of 1 A g(-1), and the specific capacitance retention is about 94.3% after 2000 cycles. The excellent electrochemical property may be ascribed to the intrinsic nature of Co-LMOF, enough space available for the storage and diffusion of the electrolyte, and the particles of nanoscale size.
authors.affiliation: School of Petrochemical Engineering and Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University , 1 Gehu Road, Changzhou, Jiangsu 213164, P. R. China.
authors.forename: Xiuxiu
authors.initials: X
authors.lastname: Liu
authors.affiliation: School of Petrochemical Engineering and Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University , 1 Gehu Road, Changzhou, Jiangsu 213164, P. R. China.
authors.forename: Changdong
authors.initials: C
authors.lastname: Shi
authors.affiliation: School of Petrochemical Engineering and Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University , 1 Gehu Road, Changzhou, Jiangsu 213164, P. R. China.
authors.forename: Changwei
authors.initials: C
authors.lastname: Zhai
authors.affiliation: School of Petrochemical Engineering and Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University , 1 Gehu Road, Changzhou, Jiangsu 213164, P. R. China.
authors.forename: Meiling
authors.initials: M
authors.lastname: Cheng
authors.affiliation: School of Petrochemical Engineering and Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University , 1 Gehu Road, Changzhou, Jiangsu 213164, P. R. China.|State Key Laboratory of Coordination Chemistry, Nanjing University , Nanjing, Jiangsu 210093, China.
authors.forename: Qi
authors.initials: Q
authors.lastname: Liu
authors.affiliation: Centre for Clean Energy Technology, School of Chemistry and Forensic Science, University of Technology Sydney , Broadway, Sydney, NSW 2007, Australia.
authors.forename: Guoxiu
authors.initials: G
authors.lastname: Wang
keywords: MOFs; cobalt compound; electrochemistry; electrode materials; supercapacitors