Electrocatalytic Activity of Tungsten Carbide and Natural Zeolite Composite in Aqueous Solution

Chin.J.Chem.Eng. ›› 2012, Vol. 20 ›› Issue (2): 254-261.

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Electrocatalytic Activity of Tungsten Carbide and Natural Zeolite Composite in Aqueous Solution

CHENG Yuan¹, XIE Weimiao¹, YAO Guoxin¹, HU Sujuan¹, LI Guohua^1,2,3

1. School of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310032, China;
2. State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Hangzhou 310032, China;
3. Research Center of Nanoscience and Technology, Zhejiang University of Technology, Hangzhou 310032, China

Received:2010-06-09 Revised:2011-09-06 Online:2012-05-02 Published:2012-04-28
Supported by:
Supported by the National Natural Science Foundation of China (21173193);the Natural Science Foundation of Zhejiang Province (Y4080209, Y406094);the Science Plan of Zhejiang Province (2007F70039)

Electrocatalytic Activity of Tungsten Carbide and Natural Zeolite Composite in Aqueous Solution

程媛¹, 谢伟淼¹, 姚国新¹, 胡素绢¹, 李国华^1,2,3

1. School of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310032, China;
2. State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Hangzhou 310032, China;
3. Research Center of Nanoscience and Technology, Zhejiang University of Technology, Hangzhou 310032, China

通讯作者: LI Guohua
基金资助:
Supported by the National Natural Science Foundation of China (21173193);the Natural Science Foundation of Zhejiang Province (Y4080209, Y406094);the Science Plan of Zhejiang Province (2007F70039)

Abstract

Abstract: Tungsten carbide and zeolite nanocomposite was prepared by combining a mechanochemical approach with a reduction and carbonization approach,using natural zeolite and ammonia metatungstate as precursors.The sample was characterized by X-ray diffraction and scanning electron microscope.The results showed that the crystal phase of the sample is composed of zeolite,monotungsten carbide and bitungsten carbide.The mass percentage and the crystallite diameter of tungsten carbide change along with the reacted time.Its electrocatalytic activity was measured with a microelectrode system with three electrodes.The results show that its electrocatalytic property is related to its crystal phase and the mass percentage of tungsten carbide,and its electrocatalytic activity is connected with the property of electrolyte,in which it is measured.Synergistic effect between tungsten carbide and zeolite is found during electrocatalysis.

Key words: tungsten carbide, zeolite, nanocomposite, electrocatalytic activity, synergistic effect

摘要： Tungsten carbide and zeolite nanocomposite was prepared by combining a mechanochemical approach with a reduction and carbonization approach,using natural zeolite and ammonia metatungstate as precursors.The sample was characterized by X-ray diffraction and scanning electron microscope.The results showed that the crystal phase of the sample is composed of zeolite,monotungsten carbide and bitungsten carbide.The mass percentage and the crystallite diameter of tungsten carbide change along with the reacted time.Its electrocatalytic activity was measured with a microelectrode system with three electrodes.The results show that its electrocatalytic property is related to its crystal phase and the mass percentage of tungsten carbide,and its electrocatalytic activity is connected with the property of electrolyte,in which it is measured.Synergistic effect between tungsten carbide and zeolite is found during electrocatalysis.

关键词: tungsten carbide, zeolite, nanocomposite, electrocatalytic activity, synergistic effect

CHENG Yuan, XIE Weimiao, YAO Guoxin, HU Sujuan, LI Guohua. Electrocatalytic Activity of Tungsten Carbide and Natural Zeolite Composite in Aqueous Solution[J]. Chin.J.Chem.Eng., 2012, 20(2): 254-261.

程媛, 谢伟淼, 姚国新, 胡素绢, 李国华. Electrocatalytic Activity of Tungsten Carbide and Natural Zeolite Composite in Aqueous Solution[J]. Chinese Journal of Chemical Engineering, 2012, 20(2): 254-261.

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Electrocatalytic Activity of Tungsten Carbide and Natural Zeolite Composite in Aqueous Solution

Electrocatalytic Activity of Tungsten Carbide and Natural Zeolite Composite in Aqueous Solution

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