中文摘要：

以嵌段共聚物P123为模板制备介孔氧化硅SBA-15，并以此SBA－15为模板，以蔗糖为碳源在不同的温度下（600-900℃）制备介孔碳CMK-3．采用浸渍还原法，以硼氢化钠为还原剂，制备介孔碳载Pt电催化剂。即20％（w）Pt／CMK-3．利用循环伏安法（CV）、计时电流法等测试电催化剂对甲醇的催化氧化性能及稳定性．预吸附单层CO溶出伏安法研究测试催化剂抗CO中毒能力．结果表明在烧制温度为900℃时制备的介孔碳载Pt催化剂具有最好的催化性能和稳定性，而在烧制温度为700℃时制各的介孔碳载Pt催化剂对CO有较低的溶出电位．

英文摘要：

Using mesoporous SiO2 （SBA-15） as templates and sugar as a carbon precursor, mesoporous carbon （CMK-3） was prepared at different temperatures （600-900 ℃）. 20% （w） Pt/CMK-3 was then prepared by impregnation reduction with sodium borohydride as a reductant. Cyclic voltammetry （CV） and chronoamperometry were applied to study the catalytic performance and stability toward methanol oxidation for the as-prepared catalyst. CO striping voltammetry was used to determine its anti-poisoning capability toward CO. The results show that the PUCMK-3 prepared at 900 ℃ had the best catalytic performance and stability toward methanol but at a carbonization temperature of 700 ℃ the Pt catalyst had a lower stripping potential to CO.