Electrochemical deposition of platinum nanoparticles on different carbon supports and conducting polymers

被引：114

作者：

Dominguez-Dominguez, Sonia ^{[2
]}

Pardilla, Joaquin Arias ^{[1
]}

Murcia, Angel Berenguer ^{[2
]}

Morallon, Emilia ^{[1
]}

Cazorla-Amoros, Diego ^{[2
]}

机构：

[1] Univ Alicante, Dept Quim Fis, Inst Univ Mat, E-03080 Alicante, Spain

[2] Univ Alicante, Fac Ciencias, Dept Quim Inorgan, Inst Univ Mat, E-03080 Alicante, Spain

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 2008年 / 38卷 / 02期

关键词：

carbon supports; conducting polymers; electrodeposition; platinum; electrocatalysis;

D O I：

10.1007/s10800-007-9435-9

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Electrodeposition of Pt nanoparticles under potentiostatic conditions was performed on several types of carbon electrode supports: commercial macroporous carbon (a three-dimensional electrode), glassy carbon and graphite. Conducting polymers (poly-aniline and poly-o-aminophenol) were also used. The platinum nanoparticles were obtained by different Potential Step Deposition (PSD) methods in 5 mM H2PtCl6 + 0.5 M H2SO4 aqueous solutions. The effect of the final potential, time and number of steps on the quantity, distribution and size of the platinum nanoparticles was analysed. The mechanism of the electrochemical deposition of platinum was studied through the application of theoretical modelling. The progressive nucleation mechanism provided the closest agreement with the results obtained. In addition, the chemical state and morphology of the electrodeposited materials were determined by means of SEM, TEM and XPS. The results show that the carbon material structure has a strong influence on the Pt particle structure and this, in turn, affects the catalytic activity.

引用

页码：259 / 268

页数：10

共 39 条

[21] Synthesis and characterization of PtRu/C catalysts from microemulsions and emulsions [J].

Liu, ZL ;

Lee, JY ;

Han, M ;

Chen, WX ;

Gan, LM .

JOURNAL OF MATERIALS CHEMISTRY, 2002, 12 (08) :2453-2458

[22] Method for supporting platinum on single-walled carbon nanotubes for a selective hydrogenation catalyst [J].

Lordi, V ;

Yao, N ;

Wei, J .

CHEMISTRY OF MATERIALS, 2001, 13 (03) :733-737

[23] Electrocatalysis at conducting polymers [J].

Malinauskas, A .

SYNTHETIC METALS, 1999, 107 (02) :75-83

[24]

Marsh H., 1997, SCI CARBON MAT

[25] Platinum particles deposited on synthetic boron-doped diamond surfaces.: Application to methanol oxidation [J].

Montilla, F ;

Morallón, E ;

Duo, I ;

Comninellis, C ;

Vázquez, JL .

ELECTROCHIMICA ACTA, 2003, 48 (25-26) :3891-3897

[26] Carbon-ceramic composites from coal tar pitch and clays:: application as electrocatalyst support [J].

Montilla, F ;

Morallón, E ;

Vázquez, JL ;

Alcañiz-Monge, J ;

Cazorla-Amorós, D ;

Linares-Solano, A .

CARBON, 2002, 40 (12) :2193-2200

[27] Electrodeposited platinum revisited: Tuning nanostructure via the deposition potential [J].

Plyasova, L. M. ;

Molina, I. Yu. ;

Gavrilov, A. N. ;

Cherepanova, S. V. ;

Cherstiouk, O. V. ;

Rudina, N. A. ;

Savinova, E. R. ;

Tsirlina, G. A. .

ELECTROCHIMICA ACTA, 2006, 51 (21) :4477-4488

[28] THEORETICAL AND EXPERIMENTAL STUDIES OF MULTIPLE NUCLEATION [J].

SCHARIFKER, B ;

HILLS, G .

ELECTROCHIMICA ACTA, 1983, 28 (07) :879-889

[29] Synthesis of graphitic carbon nanostructures from sawdust and their application as electrocatalyst supports [J].

Sevilla, M. ;

Sanchis, C. ;

Valdes-Solis, T. ;

Morallon, E. ;

Fuertes, A. B. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (27) :9749-9756

[30] Electrochemical characterisation of platinum nanoparticles prepared by microemulsion:: how to clean them without loss of crystalline surface structure [J].

Solla-Gullón, J ;

Montiel, V ;

Aldaz, A ;

Clavilier, J .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2000, 491 (1-2) :69-77

← 1 2 3 4 →