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Electroless nickel hydroxide: synthesis and characterization

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Abstract

An electroless method of nickel hydroxide synthesis through the complexation-precipitation route which yields a fine particle material having a specific surface area of 178 m2 g−1 has been described. The morphology of this material as revealed by electron microscopy is distinctly different from the turbostratic nature of electrosynthesized nickel hydroxide. While the long range structure as shown by the X-ray diffraction pattern is similar to that of β-Ni(OH)2, the short range structure as revealed by infrared spectroscopy incorporates characteristics similar to that of α-Ni(OH)2. Cyclic voltammetry studies show that the electroless nickel hydroxide has a higher coulombic efficiency (>90%), a more anodic reversible potential and a higher degree of reversibility compared to the electrosynthesized nickel hydroxide and conventionally prepared nickel hydroxide.

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Authors and Affiliations

  1. Department of Chemistry, Central College, Bangalore University, 560 001, Bangalore, India

    P. Vishnu Kamath

  2. Materials Research Centre, Indian Institute of Science, 560 012, Bangalore, India

    G. N. Subbanna

Authors
  1. P. Vishnu Kamath
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  2. G. N. Subbanna
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Kamath, P.V., Subbanna, G.N. Electroless nickel hydroxide: synthesis and characterization. J Appl Electrochem 22, 478–482 (1992). https://doi.org/10.1007/BF01077552

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  • DOI: https://doi.org/10.1007/BF01077552

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