Electrooxidation of Methanol on PANI-CeO2@Pt Catalysts

被引：1
|
作者：
Xiang, Qun [1 ]
Yan, Ruiwen [1 ]
Gao, Guiqi [1 ]
Wang, Shuang [1 ]
机构：
[1] Anhui Univ, Inst Phys Sci & Informat Technol, Hefei 230601, Anhui, Peoples R China
来源：
CHEMISTRYSELECT | 2022年 / 7卷 / 45期
关键词：
Methanol oxidation; PANI-CeO2@Pt composites; Polyaniline; CO OXIDATION; PT/C ELECTROCATALYSTS; CERIA; REDUCTION; HYDROGEN; NANOPARTICLES; PERFORMANCE; MECHANISM; OXIDE; CEO2;
D O I：
10.1002/slct.202203391
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Polyaniline (PANI) and Pt were synthesized in sequence by in situ electrochemical deposition on CeO2 surface to prepare PANI/CeO2/Pt ternary composites (PANI-CeO2@Pt composites). The electrocatalytic activity of PANI-CeO2@Pt composite was measured to 226 mA.mg(-1), which was 1.7-, 2.3-, 20-flod as that of CeO2@Pt, Pt/C, and PANI@Pt catalyst, respectively. The PANI-CeO2@Pt catalyst displayed noticeably the highest activity toward methanol oxidation after the 4000 s among the tested CeO2@Pt, Pt/C, and PANI@Pt catalyst. In a CO-stripping experiment, PANI-CeO2@Pt composites exhibited better CO tolerance. These results meant that highly dispersed Pt nanoparticles and the oxygen storage capacity of PANI-CeO2@Pt contributed to admirable catalytic activities for methanol oxidation reaction (MOR).
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页数：7
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