以活性碳为碳源,在碳表面原位生成碳化钨包覆的核壳结构的碳基材料(C@WC).TEM结果表明,制备的C@WC是具有核壳结构的碳材料,且WC中也有少量单质W.BET比表面测量结果表明,C@WC较活性碳比表面小,但具有更多的介孔结构.以C@WC为载体制备的Pd/C@WC催化剂电极的电化学比表积较大,为65.47 m2/g.Pd/C@WC对甲酸的电催化氧化活性较高,氧化峰电流密度为0.222 A/cm2,比Pd/C电极上的氧化峰电流密度增加了0.128 A/cm2.多周期循环伏安曲线的结果也表明,Pd/C@WC催化剂电极比Pd/C具有更高的活性和稳定性.
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