Electrochemical synthesis of bimetallic Au@Pt nanoparticles supported on gold film electrode by means of self-assembled monolayer

被引：26

作者：

Raoof, Jahan-Bakhsh ^{[1
]}

Ojani, Reza ^{[1
]}

Rashid-Nadimi, Sahar ^{[1
]}

机构：

[1] Mazandaran Univ, Dept Analyt Chem, Electroanalyt Chem Res Lab, Babol Sar 4741695447, Iran

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2010年 / 641卷 / 1-2期

关键词：

Au@Pt nanoparticle; CDtrode; 1,6-Hexandithiol; Self-assembled monolayer; HYDROGEN EVOLUTION; PLATINUM; COPPER; SURFACES; CATALYSIS; ARRAYS; SIZE;

D O I：

10.1016/j.jelechem.2009.12.018

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An electrochemical method for preparation of bimetallic nanoparticles is described. Gold nanoparticles were first self-assembled on gold film electrode by 1,6-hexandithiol via Au-S bond. A [PtCl6](2-) layer was then adsorbed onto the prepared gold nanoparticles and Au@Pt nanoparticles could be obtained through pulsed potentiostatic reduction. The structure and nature of the resulting Au@Pt nanoparticles were characterized by scanning electron microscopy, transmission electron microscopy, UV-visible spectroscopy, cyclic voltammetry and electrochemical impedance spectroscopy techniques. The electrocatalytic activity of Au@Pt bimetallic nanoparticles toward hydrogen evolution reaction (HER) has been investigated. The kinetic constants for HER were comparatively investigated for different modified electrodes by hydrogen evolution voltammetry. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：71 / 77

页数：7

共 35 条

[11] ORGANIZATION OF AU COLLOIDS AS MONOLAYER FILMS ONTO ITO GLASS SURFACES - APPLICATION OF THE METAL COLLOID FILMS AS BASE INTERFACES TO CONSTRUCT REDOX-ACTIVE MONOLAYERS [J].

DORON, A ;

KATZ, E ;

WILLNER, I .

LANGMUIR, 1995, 11 (04) :1313-1317

[12] A coverage-dependent study of Pt spontaneously deposited onto Au and Ru surfaces: Direct experimental evidence of the ensemble effect for methanol electro-oxidation on Pt [J].

Du, BC ;

Tong, YY .

JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (38) :17775-17780

[13] Size-selective and epitaxial electrochemical/chemical synthesis of sulfur-passivated cadmium sulfide nanocrystals on graphite [J].

Gorer, S ;

Ganske, JA ;

Hemminger, JC ;

Penner, RM .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1998, 120 (37) :9584-9593

[14] PREPARATION AND CHARACTERIZATION OF AU COLLOID MONOLAYERS [J].

GRABAR, KC ;

FREEMAN, RG ;

HOMMER, MB ;

NATAN, MJ .

ANALYTICAL CHEMISTRY, 1995, 67 (04) :735-743

[15] Reductive electrochemistry of rhodium porphyrins. Disproportionation of intermediary oxidation states [J].

Grass, V ;

Lexa, D ;

Momenteau, M ;

Saveant, JM .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (15) :3536-3542

[16] Hydrogen evolution over bimetallic systems: Understanding the trends [J].

Greeley, Jeff ;

Norskov, Jens K. ;

Kibler, Ludwig A. ;

El-Aziz, Ahmed M. ;

Kolb, Dieter M. .

CHEMPHYSCHEM, 2006, 7 (05) :1032-1035

[17] Electrochemical synthesis of Pd nanoparticles on functional MWNT surfaces [J].

Guo, DJ ;

Li, HL .

ELECTROCHEMISTRY COMMUNICATIONS, 2004, 6 (10) :999-1003

[18] Gold/platinum hybrid nanoparticles supported on multiwalled carbon nanotube/silica coaxial nanocables: Preparation and application as electrocatalysts for oxygen reduction [J].

Guo, Shaojun ;

Dong, Shaojun ;

Wang, Erkang .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (07) :2389-2393

[19] Activity of platinum-gold alloys for glucose electrooxidation in biofuel cells [J].

Habrioux, A. ;

Sibert, E. ;

Servat, K. ;

Vogel, W. ;

Kokoh, K. B. ;

Alonso-Vante, N. .

JOURNAL OF PHYSICAL CHEMISTRY B, 2007, 111 (34) :10329-10333

[20] COBALT(I) PORPHYRIN CATALYSIS OF HYDROGEN-PRODUCTION FROM WATER [J].

KELLETT, RM ;

SPIRO, TG .

INORGANIC CHEMISTRY, 1985, 24 (15) :2373-2377

← 1 2 3 4 →