PtRu/C and PtRuBi/C Electrocatalysts Prepared in Two Different Ways by Borohydride Reduction for Ethanol Electro-Oxidation

被引：0

作者：

Brandalise, Michele ^{[1
]}

Tusi, Marcelo Marques ^{[1
]}

Piasentin, Ricardo Marcelo ^{[1
]}

Linardi, Marcelo ^{[1
]}

Spinace, Estevam Vitorio ^{[1
]}

Oliveira Neto, Almir ^{[1
]}

机构：

[1] CNEN SP, IPEN, BR-05508900 Sao Paulo, Brazil

来源：

INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2010年 / 5卷 / 01期

基金：

巴西圣保罗研究基金会;

关键词：

borohydride reduction process; PtRu/C; PtRuBi/C; ethanol oxidation; fuel cells; FUEL-CELLS; INTERMETALLIC PHASES; METHANOL; SURFACE; OXIDATION; DAFC; ACID;

D O I：

暂无

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

PtRu/C (50:50) and PtRuBi/C (50:40:10) electrocatalysts were prepared by borohydride reduction using H2PtCl6 center dot 6H(2)O, RuCl3 center dot xH(2)O and Bi(NO3)(3)center dot 5H(2)O as metals sources and Vulcan XC72 as support. The borohydride solution was added in two different ways: drop by drop and rapid addition of all the solution. The obtained electrocatalysts were characterized by EDX, XRD and cyclic voltammetry. The electro-oxidation of ethanol was studied by cyclic voltammetry and chronoamperometry at room temperature and on a single cell of a direct ethanol fuel cell (DEFC) at 100 degrees C. PtRuBi/C electrocatalysts showed superior performance for ethanol electro-oxidation than PtRu/C electrocatalysts prepared in a similar way. However, PtRuBi/C electrocatalyst prepared by rapid addition of the borohydride solution showed superior performance for ethanol electro-oxidation at room temperature, while PtRuBi/C electrocatalyst prepared by addition drop by drop of borohydride solution showed superior performance on DEFC at 100 degrees C.

引用

页码：39 / 45

页数：7

共 12 条

[1] Electro-oxidation of ethanol using PtRuBi/C electrocatalyst prepared by borohydride reduction
Brandalise, M.
Verjulio-Silva, R. W. R.
Tusi, M. M.
Correa, O. V.
Farias, L. A.
Linardi, M.
Spinace, E. V.
Oliveira Neto, A.
[J]. IONICS, 2009, 15 (06) : 743 - 747
[2] Electrocatalytic activity of ordered intermetallic phases for fuel cell applications
Casado-Rivera, E
Volpe, DJ
Alden, L
Lind, C
Downie, C
Vázquez-Alvarez, T
Angelo, ACD
DiSalvo, FJ
Abruña, HD
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (12) : 4043 - 4049
[3] Electrocatalytic oxidation of formic acid at an ordered intermetallic PtBi surface
Casado-Rivera, E
Gál, Z
Angelo, ACD
Lind, C
DiSalvo, FJ
Abruña, HD
[J]. CHEMPHYSCHEM, 2003, 4 (02) : 193 - 199
[4] Synthesis of electrocatalysts by the Bonnemann method for the oxidation of methanol and the mixture H2/CO in a proton exchange membrane fuel cell
Franco, EG
Neto, AO
Linardi, M
Aricó, E
[J]. JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY, 2002, 13 (04) : 516 - 521
[5] Recent advances in the development of direct alcohol fuel cells (DAFC)
Lamy, C
Lima, A
LeRhun, V
Delime, F
Coutanceau, C
Léger, JM
[J]. JOURNAL OF POWER SOURCES, 2002, 105 (02) : 283 - 296
[6] A review of anode catalysis in the direct methanol fuel cell
Liu, HS
Song, CJ
Zhang, L
Zhang, JJ
Wang, HJ
Wilkinson, DP
[J]. JOURNAL OF POWER SOURCES, 2006, 155 (02) : 95 - 110
[7] Lanthanide-platinum intermetallic compounds as anode electrocatalysts for direct ethanol PEM fuel cells -: I.: Synthesis and characterization of LnPt2 (Ln = Ce, Pr) nanopowders
Lux, KW
Cairns, EJ
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2006, 153 (06) : A1132 - A1138
[8] Neto AO, 2009, INT J ELECTROCHEM SC, V4, P954
[9] Electro-oxidation of methanol and ethanol using PtRu/C, PtSn/C and PtSnRu/C electrocatalysts prepared by an alcohol-reduction process
Oliveira Neto, Almir
Dias, Ricardo R.
Tusi, Marcelo M.
Linardi, Marcelo
Spinace, Estevarn V.
[J]. JOURNAL OF POWER SOURCES, 2007, 166 (01) : 87 - 91
[10] Methods of preparation of metal nanoparticles supported on high surface area carbon as electrocatalysts in proton exchange membrane fuel cells.
Spinacé, EV
Neto, AO
Franco, EG
Linardi, M
Gonzalez, ER
[J]. QUIMICA NOVA, 2004, 27 (04): : 648 - 654

← 1 2 →