Self-assembling Ni(OH)2/α-Fe2O3 composites for pseudocapacitors with excellent electrochemical performance.
作者： Zijiong Li , Weiyang Zhang , Yuling Su , Zhikun Li , Jonathan Groeper
DOI: 10.1088/1361-6528/28/4/045603
关键词: Nanosheet 、 Composite material 、 Electrochemistry 、 Aqueous electrolyte 、 Materials science 、 Current density 、 Pseudocapacitor 、 Capacitance 、 Self assembling 、 Electrode material
摘要: Novel two-dimensional (2D) nanostructured Ni(OH)2 nanosheet/α-Fe2O3 nanoplate composites (NFCs) were successfully synthesized by a simple two-step solvothermal method where the proportion of α-Fe2O3 nanoplates was found to be controllable. These achieved excellent performance in aqueous electrolyte due synergistic effect between nanosheets and nanoplates, such as high specific capacitance long-term cycle stability. The obtained NFC8 possessed maximum mass 1745.33F g−1 at current density 2 A g−1, with 84.28% retention after 3000 cycles galvanostatic charge/discharge 20 g−1. above results show that these novel 2D Ni(OH)2/α-Fe2O3 are promising electrode materials for pseudocapacitors.
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