De-Alloyed PtCu/C Catalysts of Methanol Electrooxidation

被引：4

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 50 条

[1] De-Alloyed PtCu/C Catalysts of Methanol Electrooxidation
V. S. Men’shchikov
V. E. Guterman
S. V. Belenov
O. A. Spiridonova
D. V. Rezvan
Russian Journal of Electrochemistry, 2020, 56 : 850 - 858
[2] De-Alloyed PtCu/C Catalysts of Oxygen Electroreduction
S. A. Kirakosyan
A. A. Alekseenko
V. E. Guterman
I. N. Novomlinskii
V. S. Men’shchikov
E. V. Gerasimova
A. Yu. Nikulin
Russian Journal of Electrochemistry, 2019, 55 : 1258 - 1268
[3] De-Alloyed PtCu/C Catalysts of Oxygen Electroreduction
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
[4] Operation features of PEMFCs with De-alloyed PtCu/C catalysts
Pavlets, Angelina
Titskaya, Ekaterina
Alekseenko, Anastasia
Pankov, Ilya
Ivanchenko, Alina
Falina, Irina
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2024, 50 : 458 - 470
[5] Durability of de-alloyed PtCu/C electrocatalysts
Alekseenko, A. A.
Moguchikh, E. A.
Safronenko, O. I.
Guterman, V. E.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2018, 43 (51) : 22885 - 22895
[6] De-alloyed PtCu/C catalysts with enhanced electrocatalytic performance for the oxygen reduction reaction
Xiao, Zhuojie
Wu, Hao
Zhong, Huichi
Abdelhafiz, Ali
Zeng, Jianhuang
NANOSCALE, 2021, 13 (32) : 13896 - 13904
[7] The integrated approach to studying the microstructure of de-alloyed PtCu/C electrocatalysts for PEMFCs
Alekseenko, A. A.
Pavlets, A. S.
Mikheykin, A. S.
Belenov, S. V.
Guterman, E. V.
APPLIED SURFACE SCIENCE, 2023, 631
[8] Effect of the PtCu/C electrocatalysts initial composition on their activity in the de-alloyed state in the oxygen reduction reaction
Pavlets, A. S.
Alekseenko, A. A.
Nikolskiy, A. V.
Kozakov, A. T.
Safronenko, O. I.
Pankov, I. V.
Guterman, V. E.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2022, 47 (71) : 30460 - 30471
[9] PtCu/C Materials Doped with Different Amounts of Gold as the Catalysts of Oxygen Electroreduction and Methanol Electrooxidation
Belenov, S. V.
Men'shchikov, V. S.
Nikulin, A. Yu.
Novikovskii, N. M.
RUSSIAN JOURNAL OF ELECTROCHEMISTRY, 2020, 56 (08) : 660 - 668
[10] PtCu/C Materials Doped with Different Amounts of Gold as the Catalysts of Oxygen Electroreduction and Methanol Electrooxidation
S. V. Belenov
V. S. Men’shchikov
A. Yu. Nikulin
N. M. Novikovskii
Russian Journal of Electrochemistry, 2020, 56 : 660 - 668

← 1 2 3 4 5 →