Loading effect of carbon-supported platinum nanocubes on oxygen electroreduction

被引：29

作者：

Jukk, Kristel ^{[1
]}

Kongi, Nadezda ^{[1
]}

Tammeveski, Kaido ^{[1
]}

Aran-Ais, Rosa M. ^{[2
]}

Solla-Gullon, Jose ^{[2
]}

Feliu, Juan M. ^{[2
]}

机构：

[1] Univ Tartu, Inst Chem, Ravila 14a, EE-50411 Tartu, Estonia

[2] Univ Alicante, Inst Electroquim, Apartado 99, Alicante 03080, Spain

来源：

ELECTROCHIMICA ACTA | 2017年 / 251卷

关键词：

Pt nanocubes; Shape-control; Carbon support; Electrocatalysis; Oxygen reduction; ROTATING-DISK ELECTRODE; REDUCTION REACTION ACTIVITY; SINGLE-CRYSTAL SURFACES; ENHANCED ELECTROCATALYTIC ACTIVITY; FUEL-CELL ELECTROCATALYSTS; PROTON-EXCHANGE MEMBRANE; PARTICLE-SIZE; ACID-SOLUTIONS; THIN-FILM; ELECTROCHEMICAL CHARACTERIZATION;

D O I：

10.1016/j.electacta.2017.08.099

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In this work, Vulcan carbon-supported cube-shape Pt nanoparticles with various metal loadings were synthesised in the presence of oleylamine and oleic acid. Surface morphology of different Pt/C samples was examined by transmission electron microscopy (TEM) and their metal loading verified by thermogravimetric analysis (TGA). TEM micrographs showed Pt nanoparticles with a preferential cubic-shape and increased agglomeration of the particles with increasing Pt loading. Electrochemical characterisation of the Pt/C catalysts indicated that the resulting Pt nanoparticles present a preferential (100) surface structure. The electrocatalytic properties of the Pt/C catalysts of different metal loading were evaluated towards the oxygen reduction reaction (ORR) both in acidic and alkaline media employing the rotating disk electrode (RDE) configuration. Interestingly, similar specific and mass activities were found in both solutions revealing that the ORR activities were independent of the Pt loading and suggesting that all the Pt nanocubes contributed as isolated particles. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：155 / 166

页数：12

共 79 条

[1] STRUCTURE OF METAL ADLAYERS DURING THE COURSE OF ELECTROCATALYTIC REACTIONS - O-2 REDUCTION ON AU(111) WITH TL ADLAYERS IN ACID-SOLUTIONS [J].

ADZIC, RR ;

WANG, J ;

OCKO, BM .

ELECTROCHIMICA ACTA, 1995, 40 (01) :83-89

[2] Electroreduction of oxygen on Pt nanoparticle/carbon nanotube nanocomposites in acid and alkaline solutions [J].

Alexeyeva, N. ;

Tammeveski, K. ;

Lopez-Cudero, A. ;

Solla-Gullon, J. ;

Feliu, J. M. .

ELECTROCHIMICA ACTA, 2010, 55 (03) :794-803

[3] The Particle Size Dependence of the Oxygen Reduction Reaction for Carbon-Supported Platinum and Palladium [J].

Anastasopoulos, A. ;

Davies, J. C. ;

Hannah, L. ;

Hayden, B. E. ;

Lee, C. E. ;

Milhano, C. ;

Mormiche, C. ;

Offin, L. .

CHEMSUSCHEM, 2013, 6 (10) :1973-1982

[4] Structural parameters of supported fuel cell catalysts: The effect of particle size, inter-particle distance and metal loading on catalytic activity and fuel cell performance [J].

Antolini, Ermete .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2016, 181 :298-313

[5] Electrochemical Characterization of Clean Shape-Controlled Pt Nanoparticles Prepared in Presence of Oleylamine/Oleic Acid [J].

Aran-Ais, Rosa M. ;

Vidal-Iglesias, Francisco J. ;

Solla-Gullon, Jose ;

Herrero, Enrique ;

Feliu, Juan M. .

ELECTROANALYSIS, 2015, 27 (04) :945-956

[6] Influence of the electrolyte on the particle size effect of the oxygen reduction reaction on Pt nanoparticles [J].

Ashton, S. J. ;

Novo, A. ;

Mayrhofer, K. J. J. ;

Arenz, M. .

PROTON EXCHANGE MEMBRANE FUEL CELLS 9, 2009, 25 (01) :455-462

[7] Cyclic voltammetry and oxygen reduction activity of the Pt{110}-(1 x 1) surface [J].

Attard, Gary A. ;

Brew, Ashley .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2015, 747 :123-129

[8] Transition metal loaded silicon carbide-derived carbons with enhanced catalytic properties [J].

Borchardt, Lars ;

Hasche, Frederic ;

Lohe, Martin R. ;

Oschatz, Martin ;

Schmidt, Franz ;

Kockrick, Emanuel ;

Ziegler, Christoph ;

Lescouet, Tristan ;

Bachmatiuk, Alicja ;

Buechner, Bernd ;

Farrusseng, David ;

Strasser, Peter ;

Kaskel, Stefan .

CARBON, 2012, 50 (05) :1861-1870

[9] ELECTRODE KINETICS OF OXYGEN REDUCTION ON OXIDE-FREE PLATINUM ELECTRODES [J].

DAMJANOVIC, A ;

BRUSIC, V .

ELECTROCHIMICA ACTA, 1967, 12 (06) :615-+

[10] SOLUBILITY AND DIFFUSION COEFFICIENT OF OXYGEN IN POTASSIUM HYDROXIDE SOLUTIONS [J].

DAVIS, RE ;

HORVATH, GL ;

TOBIAS, CW .

ELECTROCHIMICA ACTA, 1967, 12 (03) :287-&

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