The Electrocatalytic Activity of Nickel and Molybdenum Implanted in Titanium Substrates

Chem. J. Chinese Universities ›› 1991, Vol. 12 ›› Issue (12): 1666.

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The Electrocatalytic Activity of Nickel and Molybdenum Implanted in Titanium Substrates

Wu Zhong-da¹, Li Song-mei¹, Lin Wen-lian², Ding Xiao-ji²

1. Department of Chemistry, Beijing Normal University, Beijing, 100875;
2. Institute of Low Energy Nuclear Physics, Beijing Normal University, Beijing

Received:1990-10-31 Online:1991-12-24 Published:1991-12-24

Abstract

Abstract: The catalyst was prepared by implanting Ni and Mo into Ti substrates. Ti was implanted with 1×10¹⁶ions·cm^-2of Ni and 1×10¹⁶-1×10¹⁷ions·cm^-2of Mo. The concentration profiles of Ni and Mo implanted were measured by XPS. The quantitative measurements show that the concentration profiles of Ni and Mo in Ti are approximately Gauss profiles. The current density potential curves of the cathodic hydrogen evolution reaction show that Ni and Mo implanted into Ti electrode exhibit a low hydrogen overvoltage (110-180 mV at 25℃, 200-400 mA· cm^-2, in 30 wt% KOH) and an excellent stability. The observed electrocatalytic activity is explained provisionally by an interaction between the ions implanted in Ti.

Key words: Ion implantation, Electrocatalysis, Electrochemical hydrogen evolution, Electrode

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Wu Zhong-da, Li Song-mei, Lin Wen-lian, Ding Xiao-ji. The Electrocatalytic Activity of Nickel and Molybdenum Implanted in Titanium Substrates[J]. Chem. J. Chinese Universities, 1991, 12(12): 1666.

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The Electrocatalytic Activity of Nickel and Molybdenum Implanted in Titanium Substrates

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