شماره ركورد كنفرانس :
3550
عنوان مقاله :
Nickel-cobalt layered double hydroxide ultrathin nanosheets coated on CoMoO4/nickel foam as electrode material for high capacitance supercapacitor
پديدآورندگان :
Daneshvar Samaneh Electroanalytical Chemistry Laboratory, Faculty of Chemistry, University of Guilan, Namjoo Street, P.O. Box:1914-41335, Rasht, Iran , Arvand Majid arvand@guilan.ac.ir Electroanalytical Chemistry Laboratory, Faculty of Chemistry, University of Guilan, Namjoo Street, P.O. Box:1914-41335, Rasht, Iran,
كليدواژه :
Renewable energy , CoMoO4 , Ni , Co layered double hydroxide ,
عنوان كنفرانس :
بيست و پنجمين سمينار ملي شيمي تجزيه انجمن شيمي ايران
چكيده فارسي :
Renewable alternative energy sources are required to decrease or eliminate the use of environmentally unfriendly fossil fuels. Hydrogen produced by electrolysis has been identified as one such renewable energy carrier. In this work, the hierarchical CoMoO4/Ni-Co layered double hydroxide (LDH) core-shell nanosheets arrays have been synthesized, which are grown directly on Ni foam (NF) as an integrated electrode for supercapacitors. Nanosheets arrays of cobalt-molybdenum precursors are synthesized first by a hydrothermal reaction and used as the core [1]. Then the Ni-Co LDH nanosheets were electrochemically deposited on CoMoO4/NF by applying an external voltage for 10 min [2,3]. This core-shell heterostructure exhibits desirable electrochemical properties. It shows a high specific capacitance of 1667 F g-1 at 1 A g-1 and an energy density of 67.51 Wh kg-1 and a power density of 270.05 W kg-1. In conclusion, the CoMoO4/Ni-Co LDH composites could be used as promising electrode material for electrochemical energy storage due to their remarkable electrochemical properties.
