微波法制备的Pt/C催化剂对甲醇和CO的电催化氧化  

Electrocatalytic oxidation of methanol and adsorbed CO on Pt/C catalystsprepared by microwave method

作　　者：刘福相[1] 滕朝辉[1] 史世林[1] 王力威[1] 邬冰[1] 高颖[1] 

机构地区：[1]哈尔滨师范大学化学系,黑龙江哈尔滨150080

出　　处：《化学工程师》2007年第4期3-5,11,共4页Chemical Engineer

基　　金：哈尔滨师范大学大学生科技创新基金项目;黑龙江省自然科学基金项目(B200505);黑龙江省教育厅基金项目(11511110)

摘　　要：用微波间断升温法制备了3种Pt/C催化剂,运用循环伏安和线行扫描方法测试甲醇和吸附态CO在不同方法制备的Pt/C催化剂上的电催化氧化情况。发现在酸性溶液中,对于相同Pt载量的Pt(2)和Pt(3)催化剂,Pt(3)具有较小的Pt平均粒径及较高的电催化活性;对于具有较高Pt载量的Pt(1)催化剂,具有最小的平均粒径和最高的电催化活性。The Pt/C catalysts were prepared by microwave method. The behavior of electrocatalytic oxidation for methanol and adsorbed CO on the Pt/C catalysts was investigated by cyclic vohammetry （CV） and linear sweep vohammetry （LSV） techniques. It is found that in the acidic solution the Pt in the Pt/C（3） catalyst has the smaller average particle size compared with Pt/C（2） which contained the same amount of Pt. The Pt/C（1） which contained the relatively high amount of Pt（1） has the smallest particle size and the highest electrocatalytic activity.

关 键 词：甲醇 CO 电催化氧化 

分 类 号：O646[理学—物理化学]