Ni－WC复合电极的析氢性能及其机理的研究

研究了用复合电镀技术制备的Ｎｉ－ＷＣ复合电极在弱酸性介质中的析氢行为．实验结果表明，Ｎｉ－ＷＣ复合电极的析氢催化活性比镀Ｎｉ电极高得多，且其催化活性随复合电极中ＷＣ含量的增加而提高．初步证明复合电极的析氢反应机理与Ｎｉ电极相同，都符合电化学脱附机理．

Study on the Property and Mechanism of Hydrogen Evolution Reaction on Composite Electrode

The behaviour of hydrogen evolution reaction (HER) on a Ni-WC composite eletrode whiCh is prepared by technique of composite electroplating in a weak acidic medium is studied.Experimental result shows that the HER catalytic activity of Ni-WC eleCtrode is much higher than Ni-plated electrode,and the electro-catalytic activity is increased with the content of WC.The mechanism of HER on the composite electrode is similar to the Ni electrode and obeys the electrochemical desorption.