We prepared a new kind of N-doped amorphous carbon (CxN) by the calcination of poly-o-toluidine (POT) at 800 ℃.The prepared CxN consisted of about 8.5％ (w) nitrogen.Pd nanoparticles were deposited on CxN because of the inherent chemical activity arising from nitrogen incorporation.The Pd/CxN composite catalyst has a large electrochemically active surface area and it shows good electrocatalytic performance and stability toward methanol oxidation in alkaline media.All the results suggest that CxN can potentially find application in fuel cells.%采用800℃高温煅烧聚邻甲基苯胺(POT)的方法制备了含氮的新型无定形碳(CxN)载体,其氮含量约为8.5%(W).氮元素的存在使载体具有极性,显著提高载体的化学活性,有利于钯纳米粒子在载体表面的沉积和分散,使CxN负载钯纳米粒子催化剂(Pd/CxN)具有较大的电化学活性表面积,在碱性介质中对甲醇氧化具有很高的催化活性和稳定性,表明CxN在直接甲醇燃料电池研究中是一类很有潜力的催化剂载体.
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