Effect of citric acid on photoelectrochemical properties of tungsten trioxide films prepared by the polymeric precursor method

被引：20

作者：

Li, Wenzhang ^{[1
,2
]}

Li, Jie ^{[1
,2
]}

Wang, Xuan ^{[1
,2
]}

Ma, Jun ^{[1
,2
]}

Chen, Qiyuan ^{[1
,2
]}

机构：

[1] Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China

[2] Minist Educ, Key Lab Resources Chem Nonferrous Met, Changsha 410083, Hunan, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2010年 / 256卷 / 23期

基金：

国家高技术研究发展计划(863计划);

关键词：

Citric acid; WO3 thin films; Polymeric precursor method; Photoelectrochemistry; THIN-FILMS; LUMINESCENT PROPERTIES; AQUEOUS-SOLUTIONS; OXIDE FILMS; COMPLEXES; LIGHT; PHOTOCATALYSTS; RATIO; WATER; TIO2;

D O I：

10.1016/j.apsusc.2010.05.030

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Effect of citric acid (CA) on microstructure and photoelectrochemical properties of WO3 films prepared by the polymeric precursor method was investigated. The obtained materials were characterized by means of X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), and high-resolution transmission electron microscopy (HRTEM). The results showed that samples prepared with adding different amounts of citric acid had a pure phase of cubic. The addition of citric acid could significantly increase the particle size and change the surface of WO3 films. The photoelectrochemical measurements were performed using a standard three-electrode system cell. The films prepared from mass ratios of CA/PEG (R = 0, 0.2, 0.4, 0.6 and 1) showed 1.0, 1.4, 1.7, 2.1 and 0.9 mA cm(-2) at 1.2 V under illumination with a 500 W xenon lamp (I-0 = 100 mW/cm(2)), respectively. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：7077 / 7082

页数：6

共 48 条

[1] Phase transformations inWO3 thin films during annealing [J].

Al Mohammad, A ;

Gillet, M .

THIN SOLID FILMS, 2002, 408 (1-2) :302-309

[2] Enhancement of photocatalytic and electrochromic properties of electrochemically fabricated mesoporous WO3 thin films [J].

Baeck, SH ;

Choi, KS ;

Jaramillo, TF ;

Stucky, GD ;

McFarland, EW .

ADVANCED MATERIALS, 2003, 15 (15) :1269-+

[3] The visible light induced photocatalytic activity of tungsten trioxide powders [J].

Bamwenda, GR ;

Arakawa, H .

APPLIED CATALYSIS A-GENERAL, 2001, 210 (1-2) :181-191

[4] High photocurrent conversion efficiency in self-organized porous WO3 [J].

Berger, S. ;

Tsuchiya, H. ;

Ghicov, A. ;

Schmuki, P. .

APPLIED PHYSICS LETTERS, 2006, 88 (20)

[5] Metal oxide surfaces and their interactions with aqueous solutions and microbial organisms [J].

Brown, GE ;

Henrich, VE ;

Casey, WH ;

Clark, DL ;

Eggleston, C ;

Felmy, A ;

Goodman, DW ;

Grätzel, M ;

Maciel, G ;

McCarthy, MI ;

Nealson, KH ;

Sverjensky, DA ;

Toney, MF ;

Zachara, JM .

CHEMICAL REVIEWS, 1999, 99 (01) :77-174

[6] PHOTOELECTROLYSIS AND PHYSICAL-PROPERTIES OF SEMICONDUCTING ELECTRODE WO3 [J].

BUTLER, MA .

JOURNAL OF APPLIED PHYSICS, 1977, 48 (05) :1914-1920

[7] COMPOUNDS OF TUNGSTEN(VI) WITH CITRIC-ACID - A SPECTROPHOTOMETRIC, POLARIMETRIC AND H-1, C-13 NMR-STUDY OF THE FORMATION AND INTERCONVERSION EQUILIBRIA IN AQUEOUS-SOLUTION [J].

CERVILLA, A ;

RAMIREZ, JA ;

LLOPIS, E .

TRANSITION METAL CHEMISTRY, 1986, 11 (05) :186-192

[8] ELECTROCHROMISM IN SOME THIN-FILM TRANSITION-METAL OXIDES CHARACTERIZED BY X-RAY ELECTRON-SPECTROSCOPY [J].

COLTON, RJ ;

GUZMAN, AM ;

RABALAIS, JW .

JOURNAL OF APPLIED PHYSICS, 1978, 49 (01) :409-416

[9] COMPLEXATION OF TUNGSTEN(VI) WITH CITRATE [J].

CRUYWAGEN, JJ ;

KRUGER, L ;

ROHWER, EA .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1991, (07) :1727-1731

[10] RIGID-DISORDERED MODELS FOR INORGANIC STRUCTURES - THE CASE OF ZIRCONIA NANOPOWDERS [J].

DEPERO, LE ;

LEVRANGI, P .

JOURNAL OF SOLID STATE CHEMISTRY, 1994, 110 (01) :190-192

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