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Citation: Nian Siyu, Zhang Yan, Zhang Guofeng, Qin Pan, Song Jiming. Synthesis of Co(OH)2/Ni(OH)2 Composite Electrode Materials and Their Supercapacitor Performance[J]. Chemistry, ;2019, 82(11): 989-994. shu

Synthesis of Co(OH)2/Ni(OH)2 Composite Electrode Materials and Their Supercapacitor Performance

  • Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601

  • Corresponding author: Song Jiming, jiming@ahu.edu.cn
  • Received Date: 15 June 2019
    Accepted Date: 6 August 2019

Figures(6)

  • Co(OH)2/Ni(OH)2 composite materials were synthesized by solvothermal method using Co(NO3)2·6H2O and Ni(NO3)2·6H2O as cobalt and nickel sources, respectively. NiCo2O4 material could be obtained by calcining as-sgnthesized composite. The obtained materials were characterized by XRD, SEM and BET. The results showed that the Co(OH)2/Ni(OH)2 composite exhibits flower-like morphology with a specific surface area of 37.48 m2·g-1. The tests of the electrochemical properties showed that the Co(OH)2/Ni(OH)2 composite materials have higher specific capacitance and capacity retention than those of NiCo2O4 material. At 0.5 A·g-1, its specific capacitance can reach 1097.8 F·g-1, while that of NiCo2O4 is only 86.1 F·g-1. Therefore, it has better electrochemical properties than the NiCo2O4 obtained by calcining, thus provides a new idea for preparing high performance supercapacitor materials.
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