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我们以葡萄糖为原料,采用水热法制备了粒径较为均一的碳纳米球,通过硼氢化钠共还原法合成了钯/碳纳米球(Pd/C_(NS))复合材料,并通过X射线衍射、透射电镜及循环伏安等技术对Pd/C_(NS)催化剂的粒径、形貌和电化学性质进行了表征。我们所制备的Pd/C_(NS)催化剂对甲酸电氧化具有较好的催化活性,其活性接近于在商业化Cabot Vulcan 72R载体上负载的钯催化剂,表明Pd/C_(NS)复合材料有望作为甲酸燃料电池阳极材料。
We use glucose as raw material to prepare carbon nanospheres with a uniform particle size by hydrothermal method. Pd / C nanocomposite (Pd / C_ (NS)) nanocomposites were synthesized by co-reduction with sodium borohydride and analyzed by X-ray Diffraction, transmission electron microscopy and cyclic voltammetry were used to characterize the particle size, morphology and electrochemical properties of Pd / C_ (NS) catalysts. The Pd / C_ (NS) catalyst we prepared has better catalytic activity for formic acid electrooxidation and its activity is close to the palladium catalyst supported on commercial Cabot Vulcan 72R support, indicating that Pd / C_ (NS) Formic acid fuel cell anode material.