Electrochemical preparation of iron cuboid nanoparticles and their catalytic properties for nitrite reduction

被引：35

作者：

Chen, Yan-Xin ^{[1
]}

Chen, Sheng-Pei ^{[1
]}

Chen, Qing-Song ^{[1
]}

Zhou, Zhi-You ^{[1
]}

Sun, Shi-Gang ^{[1
]}

机构：

[1] Xiamen Univ, Dept Chem, Coll Chem & Chem Engn, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2008年 / 53卷 / 23期

基金：

中国国家自然科学基金;

关键词：

Electrodeposition; shape control synthesis; Fe cuboid nanoparticles; nitrite electroreduction;

D O I：

10.1016/j.electacta.2008.02.024

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Iron cuboid nanoparticles supported on glassy carbon (denoted nm-Fe/GC) were prepared by electrochemical deposition Under cyclic voltammetric (CV) conditions. The Structure and composition of the Fe nanomaterials were characterized by scanning electron microscopy (SEM), selected area electron diffraction (SAED). X-ray diffraction (XRD) and energy dispersive X-ray analysis (EDX). The results demonstrated that the Fe cuboid nanoparticles are dispersed discretely on GC substrate with an average size ca. 171 nm, and confirmed that the electrochemical synthesized nanocubes are single crystals of pure Fe. The catalytic properties of the Fe cuboid nanoparticles towards nitrite electroreduction were investigated. and enhanced electrocatalytic activity of the Fe nanocubes has been determined. In comparison with the data obtained on a bulk-Fe electrode. the onset potential of nitrite reduction on nm-Fe/GC is positively sifted by 100 mV, and the steady reduction current density is enhanced about 2.4-3.2 times. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：6938 / 6943

页数：6

共 44 条

[1]

[Anonymous], 1985, STANDARD POTENTIALS

[2] Nitrate adsorption and reduction on Cu(100) in acidic solution [J].

Bae, Sang-Eun ;

Stewart, Karen L. ;

Gewirth, Andrew A. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (33) :10171-10180

[3] Investigation of quaternary Al-based quasicrystal thin films for corrosion protection [J].

Balbyshev, VN ;

King, DJ ;

Khramov, A ;

Kasten, LS ;

Donley, MS .

THIN SOLID FILMS, 2004, 447 :558-563

[4] Nitrate and nitrite electrocatalytic reduction on Rh-modified pyrolytic graphite electrodes [J].

Brylev, Oleg ;

Sarrazin, Mathieu ;

Roue, Lionel ;

Belanger, Daniel .

ELECTROCHIMICA ACTA, 2007, 52 (21) :6237-6247

[5] GROWTH OF AN ELECTROCHROMIC FILM ON IRON IN BASE UNDER POTENTIAL CYCLING CONDITIONS [J].

BURKE, LD ;

MURPHY, OJ .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1980, 109 (1-3) :379-383

[6] Electrochemical reduction of NO3- and NO2- on a composite copper thallium electrode in alkaline solutions [J].

Casella, IG ;

Gatta, M .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2004, 568 (1-2) :183-188

[7] Electrochemical preparation and structural characterization of Co thin films and their anomalous IR properties [J].

Chen, Qing-Song ;

Sun, Shi-Gang ;

Yan, Jia-Wei ;

Li, Jun-Tao ;

Zhou, Zhi-You .

LANGMUIR, 2006, 22 (25) :10575-10583

[8] Iron hexacyanoruthenate films and their electrocatalytic properties with nitrite and dopamine [J].

Chen, SM ;

Hsueh, SH .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2003, 150 (10) :D175-D183

[9] Study by Fourier transform infrared spectroscopy of the electroadsorption of CO on the ferrous metals .1. Iron [J].

Cuesta, A ;

Gutierrez, C .

JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (30) :12600-12608

[10] Electronic factors in catalysis: the volcano curve and the effect of promotion in catalytic ammonia synthesis [J].

Dahl, S ;

Logadottir, A ;

Jacobsen, CJH ;

Norskov, JK .

APPLIED CATALYSIS A-GENERAL, 2001, 222 (1-2) :19-29

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