Citation: Liang XIAO, Jun Tao LU, Pei Fang LIU, Lin ZHUANG, Jia Wei YAN, Rong Gang HU, Bing Wei MAO, Chang Jian LIN. Determination of Proton Diffusion Coefficient in Spherical Nickel Hydroxide Using Potential Step Measurement on Single Beads[J]. Chinese Chemical Letters, ;2005, 16(3): 419-422. shu

Determination of Proton Diffusion Coefficient in Spherical Nickel Hydroxide Using Potential Step Measurement on Single Beads

1.
Department of Chemistry, Wuhan University, Wuhan 430072;
2.
Department of Chemistry and State Key Laboratory for Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen 361005

Received Date: 27 February 2004

Fund Project: This work was supported by the National Natural Science Foundation of China (No. 20073223) and the State Key Laboratory for Physical Chemistry of Solid surfaces at Xiamen University (project No. 200206)

The Potential step measurements are carried out on single beads of nickel hydroxide and the results are interpreted with a dual structure model featuring fast and slow diffusing components.The intrinsic diffusion coefficients for the two components are found to be in the order of magnitude 10^-7 and 10^-13~10^-14 cm²s^-1, respectively, with an apparent value for the slow component in the order of 10^-10 cm²s^-1.
- Nickel hydroxide,
- proton diffusion,
- proton vacancy,
- diffusion coefficient,
- betteries.
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