One-Step synthesis of PtFe/CeO2 catalyst for the Co-Preferential oxidation reaction at low temperatures

被引：14
|
作者：
Antoniassi, Rodolfo M. [1 ]
Machado, Arthur P. [2 ]
Paiva, Ana Rita N. [2 ]
Queiroz, Carla M. S. [2 ]
Vaz, Jorge M. [2 ]
Spinace, Estevam, V [2 ]
Silva, Julio Cesar M. [3 ]
Carmine, Eduardo [1 ]
Camargo, Pedro H. C. [1 ,4 ]
Torresi, Roberto M. [1 ]
机构：
[1] Univ Sao Paulo, Inst Quim, Av Prof Lineu Prestes 748,Cidade Univ, BR-05508000 Sao Paulo, SP, Brazil
[2] Inst Pesquisas Energet & Nucl IPEN CNEN SP, Av Prof Lineu Prestes 2242,Cidade Univ, BR-05508900 Sao Paulo, SP, Brazil
[3] Univ Fed Fluminense, Grp Eletroquim & Mat Nanoestruturados, Inst Quim, Campus Valonguinho, BR-24020141 Niteroi, RJ, Brazil
[4] Univ Helsinki, Dept Chem, AI Virtasen Aukio 1, Helsinki, Finland
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2021年 / 46卷 / 34期
基金：
巴西圣保罗研究基金会;
关键词：
Pt nanoparticles; Pt/Fe-based catalysts; CO-PROX; Hydrogen; Borohydride reduction process; CARBON-MONOXIDE; PLATINUM NANOPARTICLES; SELECTIVE OXIDATION; ALLOY NANOPARTICLES; ROOM-TEMPERATURE; FUEL-CELLS; HYDROGEN; PERFORMANCE; PROX; H-2;
D O I：
10.1016/j.ijhydene.2021.02.192
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Active Pt-based catalysts at low temperature towards the preferential oxidation of carbon monoxide in hydrogen-rich stream reaction (CO-PROX) are of great importance for H-2-fueled fuel cells, but still remain a challenge. Herein, we propose a simple approach to synthesize a highly active Pt20Fe/CeO2 catalyst employing the borohydride reduction process. Transmission electronic microscopy revealed monodispersed 2.8 nm-Pt nanoparticles on CeO2, and the role of Fe species on the activity is discussed. The excellent CO conversion of 99.6% and CO2 selectivity of 92.3% carried out at ambient temperature meet the CO-PROX requirements for an adequate supply of hydrogen in fuel cell device. (C) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：17751 / 17762
页数：12
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