硅酸盐学报

CeO2形貌对Pt基阳极催化剂性能的影响

单位：(1. 内蒙古科技大学材料与冶金学院内蒙古包头 014010 2. 内蒙古自治区先进陶瓷材料与器件重点实验室内蒙古包头 014010 3. 上海大学材料科学与工程学院上海 200072)

分类号：TM911.4

出版年,卷(期):页码：2018,46(7):0-0

DOI：

摘要：

采用水热合成法在不同温度(300、400和500 ℃)下制备了比表面积分别为174.72、120.15和101.13 m2/g，孔径均在2~4 nm范围的帚状CeO2。通过微波辅助乙二醇还原氯铂酸法制备了CeO2修饰的石墨烯负载Pt(Pt-CeO2/C)催化剂。探究不同焙烧温度制备的CeO2对Pt-CeO2/C催化剂微观结构及电催化性能的影响。结果表明：随帚状CeO2焙烧温度的降低，催化剂的催化性能、稳定性及抗中毒能力随之增强。添加了帚状CeO2的Pt-CeO2/C催化剂的催化性能、稳定性和抗中毒能力优于传统的Pt/C。帚状CeO2焙烧温度为300 ℃时，Pt-CeO2/C催化剂的电催化性能最好，其电化学活性表面积为102.83 m2/g，峰电流密度为757.17 A/g，1 100 s的稳态电流密度为108.17 A/g。

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作者简介：

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