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催化学报  2014 

具有优异甲醇催化氧化性能的Pt/MoO3-WO3/CNTs催化剂

DOI: 10.1016/S1872-2067(14)60104-2, PP. 1687-1694

Keywords: 直接甲醇燃料电池,阳极催化剂,,氧化钼,氧化钨,碳纳米管,甲醇电催化氧化,一氧化碳氧化

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Abstract:

?以聚二烯丙基二甲基胺盐酸盐(PDDA)为连接剂,采用原位自组装方式将MoO3和WO3负载到碳纳米管(CNTs)上,然后通过乙二醇还原法负载Pt纳米颗粒,得到Pt纳米颗粒均匀分布的Pt/MoO3-WO3/CNTs催化剂.当氧化物总量控制在10wt%,MoO3与WO3摩尔比为1:0.5时,Pt/MoO3-WO3/CNTs催化剂催化甲醇氧化活性最高,甲醇氧化峰电流If高达835A/gPt.WO3和MoO3的加入提高了催化剂的甲醇氧化活性、抗CO中毒能力和稳定性,使得Pt/MoO3-WO3/CNTs催化剂表现出优异的甲醇电催化氧化性能.

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