Wang Xiaofeng, Ruan Dianbo, Liang Ji. Pseudocapacitive Behavior of Nickel Oxide/Carbon Nanotubes Composite Prepared by Cathodic Deposition[J]. Chinese Journal of Chemical Physics , 2005, 18(3): 421-427. doi: 10.1088/1674-0068/18/3/421-427
Citation: Wang Xiaofeng, Ruan Dianbo, Liang Ji. Pseudocapacitive Behavior of Nickel Oxide/Carbon Nanotubes Composite Prepared by Cathodic Deposition[J]. Chinese Journal of Chemical Physics , 2005, 18(3): 421-427. doi: 10.1088/1674-0068/18/3/421-427

Pseudocapacitive Behavior of Nickel Oxide/Carbon Nanotubes Composite Prepared by Cathodic Deposition

doi: 10.1088/1674-0068/18/3/421-427
  • Received Date: 2004-04-20
  • A novel type of composite electrode based on multiwalled carbon nanotubes coated with nano nickel oxide particles has been used in supercapacitors. Nickel oxide cathodically deposited from Ni(NO3)2 solution with carbon nanotubes as the matrix exhibited large pseudocapacitance of 25F/g in 6 mol/L KOH. The morphology of composites was examined by scanning electron microscope (SEM). To characterize the CNTs/nickel oxide composite electrode, a chargedischarge cycling test for measuring specific capacitance, cyclic voltammetry, and ac impedance test is executed. The nickel oxide composite exhibiting excellent pseudocapacitive behavior(i.e.high reversibility, high specific capacitance, and low selfdischarge rate) has been demonstrated to be a potential candidate for the application of electrochemical supercapacitors.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Pseudocapacitive Behavior of Nickel Oxide/Carbon Nanotubes Composite Prepared by Cathodic Deposition

doi: 10.1088/1674-0068/18/3/421-427

Abstract: A novel type of composite electrode based on multiwalled carbon nanotubes coated with nano nickel oxide particles has been used in supercapacitors. Nickel oxide cathodically deposited from Ni(NO3)2 solution with carbon nanotubes as the matrix exhibited large pseudocapacitance of 25F/g in 6 mol/L KOH. The morphology of composites was examined by scanning electron microscope (SEM). To characterize the CNTs/nickel oxide composite electrode, a chargedischarge cycling test for measuring specific capacitance, cyclic voltammetry, and ac impedance test is executed. The nickel oxide composite exhibiting excellent pseudocapacitive behavior(i.e.high reversibility, high specific capacitance, and low selfdischarge rate) has been demonstrated to be a potential candidate for the application of electrochemical supercapacitors.

Wang Xiaofeng, Ruan Dianbo, Liang Ji. Pseudocapacitive Behavior of Nickel Oxide/Carbon Nanotubes Composite Prepared by Cathodic Deposition[J]. Chinese Journal of Chemical Physics , 2005, 18(3): 421-427. doi: 10.1088/1674-0068/18/3/421-427
Citation: Wang Xiaofeng, Ruan Dianbo, Liang Ji. Pseudocapacitive Behavior of Nickel Oxide/Carbon Nanotubes Composite Prepared by Cathodic Deposition[J]. Chinese Journal of Chemical Physics , 2005, 18(3): 421-427. doi: 10.1088/1674-0068/18/3/421-427

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