One-Pot Microwave-Assisted Synthesis of Graphene-Supported PtCoM (M = Mn, Ru, Mo) Catalysts for Low-Temperature Fuel Cells

被引：2

作者：

Nacys, Antanas ^{[1
]}

Kilmonis, Teofilius ^{[1
]}

Kepeniene, Virginija ^{[1
]}

Balciunaite, Aldona ^{[1
]}

Stagniunaite, Raminta ^{[1
]}

Upskuviene, Daina ^{[1
]}

Jablonskiene, Jolita ^{[1
]}

Vaiciuniene, Jurate ^{[1
]}

Skapas, Martynas ^{[1
]}

Tamasauskaite-Tamasiunaite, Loreta ^{[1
]}

Norkus, Eugenijus ^{[1
]}

机构：

[1] Ctr Phys Sci & Technol FTMC, State Res Inst, Sauletekio Ave 3, LT-10257 Vilnius, Lithuania

来源：

CATALYSTS | 2021年 / 11卷 / 12期

关键词：

graphene; transition metals; microwave irradiation; methanol; oxidation; ONE-STEP SYNTHESIS; EFFICIENT ANODE CATALYST; METHANOL OXIDATION; ELECTROCATALYTIC PERFORMANCE; ALLOY NANOPARTICLES; FACILE SYNTHESIS; BIFUNCTIONAL ELECTROCATALYST; CARBON NANOTUBES; OXYGEN REDUCTION; ELECTROOXIDATION;

D O I：

10.3390/catal11121431

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：

In this study, one-pot microwave-assisted synthesis was used to fabricate the graphene (GR)-supported PtCoM catalysts where M = Mn, Ru, and Mo. The catalysts with the molar ratios of metals Pt:Co:Mn, Pt:Co:Ru, and Pt:Co:Mo equal to 1:3:1, 1:2:2, and 7:2:1, respectively, were prepared. Catalysts were characterized using Transmission Electron Microscopy (TEM). The electrocatalytic activity of the GR-supported PtCoMn, PtCoRu, and PtCoMo catalysts was evaluated toward methanol oxidation in an alkaline medium employing cyclic voltammetry and chrono-techniques. The most efficient electrochemical characteristics demonstrated the PtCoMn/GR catalyst with a current density value of 144.5 mA cm(-2), which was up to 4.8 times higher than that at the PtCoRu(1:2:2)/GR, PtCoMo(7:2:1)/GR, and bare Pt/GR catalysts.

引用

页数：17

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