De-Alloyed PtCu/C Catalysts of Methanol Electrooxidation

被引：5

作者：

Men'shchikov, V. S. ^{[1
]}

Guterman, V. E. ^{[1
]}

Belenov, S. V. ^{[1
]}

Spiridonova, O. A. ^{[1
]}

Rezvan, D. V. ^{[1
]}

机构：

[1] Southern Fed Univ, Fac Chem, Rostov Na Donu 344090, Russia

来源：

RUSSIAN JOURNAL OF ELECTROCHEMISTRY | 2020年 / 56卷 / 10期

关键词：

methanol electrooxidation; platinum-copper catalysts; bimetallic catalysts; de-alloyed catalysts; catalyst pretreatment; demetallized catalysts; activity in the methanol oxidation reaction; methanol fuel cells; OXYGEN REDUCTION REACTION; PT(CU)/C ELECTROCATALYSTS; CARBON-MONOXIDE; FUEL-CELLS; NANOPARTICLES; PTCO; STABILITY; NI;

D O I：

10.1134/S1023193520100080

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The activity of PtCu/C catalysts in methanol electrooxidation is studied in HClO4 solution. The electrochemical behavior of catalysts is compared for samples in the "as obtained" state and after their pretreatment in nitric acid which decreases the copper content in their composition. It is found that the partial selective dissolution of the alloying component renders no negative effect on the behavior of bimetallic catalysts. The prepared materials exhibit the high tolerance toward intermediates of methanol oxidation and their specific activity exceeds by a factor of 5-7 the activity of the commercial Pt/C catalysts. The results of this study open up the possibility of using de-alloyed platinum-copper catalysts in alcohol fuel cells, because this considerably decreases the risk of contamination of the polymeric membrane.

引用

页码：850 / 858

页数：9

共 32 条

[11] Proton exchange membrane fuel cell reversible performance loss induced by carbon monoxide produced during operation [J].

Decoopman, B. ;

Vincent, R. ;

Rosini, S. ;

Paganelli, G. ;

Thivel, P. -X. .

JOURNAL OF POWER SOURCES, 2016, 324 :492-498

[12] One step synthesis of PtNi electrocatalyst for methanol oxidation [J].

Gao, Shan ;

Yang, Xiaoxuan ;

Liang, Song ;

Wang, Yong-Hui ;

Zang, Hong-Ying ;

Li, Yang-Guang .

INORGANIC CHEMISTRY COMMUNICATIONS, 2019, 106 :104-110

[13] CO-assisted ex-situ chemical activation of Pt-Cu/C oxygen reduction reaction electrocatalyst [J].

Gatalo, Matija ;

Moriau, Leonard ;

Petek, Ursa ;

Ruiz-Zepeda, Francisco ;

Sala, Martin ;

Grom, Matic ;

Galun, Timotej ;

Jovanovic, Primoz ;

Pavlisic, Andraz ;

Bele, Marjan ;

Hodnik, Nejc ;

Gaberscek, Miran .

ELECTROCHIMICA ACTA, 2019, 306 :377-386

[14] Studies of the methanol crossover and cell performance behaviors of high temperature-direct methanol fuel cells (HT-DMFCs) [J].

Gwak, Geonhui ;

Kim, Dowhan ;

Lee, Suwon ;

Ju, Hyunchul .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2018, 43 (30) :13999-14011

[15] Material degradation of components in polymer electrolyte membrane (PEM) electrolytic cell and mitigation mechanisms: A review [J].

Khatib, F. N. ;

Wilberforce, Tabbi ;

Ijaodola, Oluwatosin ;

Ogungbemi, Emmanuel ;

El-Hassan, Zaki ;

Durrant, A. ;

Thompson, J. ;

Olabi, A. G. .

RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2019, 111 :1-14

[16] De-Alloyed PtCu/C Catalysts of Oxygen Electroreduction [J].

Kirakosyan, S. A. ;

Alekseenko, A. A. ;

Guterman, V. E. ;

Novomlinskii, I. N. ;

Men'shchikov, V. S. ;

Gerasimova, E., V ;

Nikulin, A. Yu .

RUSSIAN JOURNAL OF ELECTROCHEMISTRY, 2019, 55 (12) :1258-1268

[17] SCHERRER AFTER 60 YEARS - SURVEY AND SOME NEW RESULTS IN DETERMINATION OF CRYSTALLITE SIZE [J].

LANGFORD, JI ;

WILSON, AJC .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1978, 11 (APR) :102-113

[18] Peak utilization of catalyst with ultra-low Pt loaded PEM fuel cell electrodes prepared by the electrospray method [J].

Martin, S. ;

Martinez-Vazquez, B. ;

Garcia-Ybarra, P. L. ;

Castillo, J. L. .

JOURNAL OF POWER SOURCES, 2013, 229 :179-184

[19] Effect of the Composition and Structure of Pt(Cu)/C Electrocatalysts on Their Stability under Different Stress Test Conditions [J].

Moguchikh, E. A. ;

Alekseenko, A. A. ;

Guterman, V. E. ;

Novikovsky, N. M. ;

Tabachkova, N. Yu. ;

Menshchikov, V. S. .

RUSSIAN JOURNAL OF ELECTROCHEMISTRY, 2018, 54 (11) :979-989

[20] PtCu3, PtCu and Pt3Cu Alloy Nanoparticle Electrocatalysts for Oxygen Reduction Reaction in Alkaline and Acidic Media [J].

Oezaslan, Mehtap ;

Hasche, Frederic ;

Strasser, Peter .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2012, 159 (04) :B444-B454

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