Pt-Au nanoparticles on graphene for oxygen reduction reaction: Stability and performance on proton exchange membrane fuel cell

被引：54
作者：
Beltran-Gastelum, M. [1 ]
Salazar-Gastelum, M. I. [1 ]
Flores-Hernandez, J. R. [2 ]
Botte, G. G. [3 ]
Perez-Sicairos, S. [1 ]
Romero-Castanon, T. [2 ]
Reynoso-Soto, E. [1 ]
Felix-Navarro, R. M. [1 ]
机构：
[1] Tecnol Nacl Mexico, Inst Tecnol Tijuana, Ctr Grad & Invest Quim, Blvd Alberto Limon Padilla S-N Col Otay Tecnol, Tijuana 22510, BC, Mexico
[2] Inst Nacl Elect & Energias Limpias, Ave Reforma 113 Col Palmira, Cuernavaca 62490, Morelos, Mexico
[3] Ohio Univ, Ctr Electrochem Engn Res, 182 Mill St, Athens, OH 45701 USA
来源：
ENERGY | 2019年 / 181卷
基金：
美国国家科学基金会;
关键词：
Graphene; Oxygen reduction reaction; Nanomaterial; Hydrogen fuel cell; Stability; CARBON-BLACK; MICROPOROUS LAYER; CATHODE CATALYST; DOPED GRAPHENE; OXIDE; ELECTROCATALYSTS; HYBRID; COMPOSITE; NANOCOMPOSITES; NANOTUBES;
D O I：
10.1016/j.energy.2019.06.033
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Pt and Pt-Au nanoparticles supported on reduced graphene oxide (rGO) were synthesized by reverse microemulsion method with metal loading of 20 wt% and 10: 10 wt%, respectively. The nanomaterials were characterized by Raman, X-ray diffraction, thermogravimetric analysis and transmission electronic microscope. The obtained materials were evaluated as electrocatalysts for Oxygen Reduction Reaction (ORR), obtaining the highest catalytic activity with Pt-Au/rGO compared to Pt/rGO; besides, the stability of the catalyst is determined until 50,000 cycles. Pt-Au/rGO was used to prepare membrane electrode assembly (MEA), in order to study the performance of this nanomaterial in the proton exchange membrane fuel cell (PEMFC). The maximum power density is 20 mW cm(-2) and 70 mW cm(-2) for Pt/rGO and Pt-Au/rGO, respectively, those values increased up to 365 mW cm(-2), when Pt-Au nanoparticles supported on multiwall carbon nanotubes (CNT) was used as spacer. (C) 2019 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1225 / 1234
页数：10
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