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Journal of Applied Electrochemistry

, Volume 31, Issue 5, pp 565–572 | Cite as

Optimization of Hydrogen evolving activity on Nickel–Phosphorus Deposits using Experimental Strategies

  • C.-C. Hu
  • A. Bai
Article

Abstract

The effects of electroplating variables on the hydrogen evolving activity of Ni–P deposits were systematically examined using fractional factorial design (FFD), path of steepest ascent, and central composite design (CCD) coupled with the response surface method (RSM). The FFD study indicates that the main and interactive effects of temperature, pH, and NaH2PO2·H2O concentration are the key preparation factors influencing the Ni–P cathode. Empirical models for apparent activity (i), specific activity (i/Ra), and phosphorus content (at %) are fitted against these three variables in the CCD study. These models, represented as contour diagrams, show that a Ni–P deposit with 7P at % exhibits the maximum electrocatalytic activity.

electroplating experimental design hydrogen evolution nickel–phosphorus deposits 

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Copyright information

© Kluwer Academic Publishers 2001

Authors and Affiliations

  • C.-C. Hu
    • 1
  • A. Bai
    • 1
  1. 1.Department of Chemical EngineeringNational Chung Cheng UniversityChia-YiTaiwan

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