The effect of composition variables on precursor degradation and their consequence on Nb2O5 film properties prepared by the Pecchini method

被引：21
|
作者：
Rosario, Adriane V. [1 ]
Pereira, Ernesto C. [1 ]
机构：
[1] Univ Fed Sao Carlos, Dept Quim, Lab Interdisciplinar Electroquim & Ceram, Ctr Desenvolvimento Mat Ceram, BR-13560970 Sao Carlos, SP, Brazil
来源：
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2006年 / 38卷 / 03期
基金：
巴西圣保罗研究基金会;
关键词：
electrochromic films; Nb2O5; Pecchini method;
D O I：
10.1007/s10971-006-7997-3
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The calcination of Nb2O5 prepared by the Pecchini method was investigated using thermal analysis. The polymer precursor was prepared with different citric acid/ethylene glycol (CA/EG) and citric acid/niobium precursor (CA/Nb) molar ratios. The results suggest a strong influence of the CA/EG molar ratio, mainly on the polymerization degree. The CA/Nb ratio also modifies the degradation process of the precursor solution. The effect of the precursor compositional variation was also observed in the oxide structure, as well as in its electrochemical and electrochromic behavior. Films prepared using high CA/EG and a Nb salt precursor amount have the highest values of charge density and coloration efficiency. Moreover XRD data for this sample show a crystalline structure while the samples prepared with low CA/EG ratio are amorphous.
引用
收藏
页码：233 / 240
页数：8
相关论文
共 50 条
  • [21] Degradation of emerging contaminants: Effect of thermal treatment on nb2o5 as photocatalyst
    Abreu, E.
    Fidelis, M. Z.
    Fuziki, M. E.
    Malikoski, R. M.
    Mastsubara, M. C.
    Imada, R. E.
    Tuesta, J. L. Diaz de
    Gomes, H. T.
    Anziliero, M. D.
    Baldykowski, B.
    Dias, D. T.
    Lenzi, G. G.
    JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2021, 419
  • [22] Electrical properties of anodically oxidized Nb2O5 and Si-doped Nb2O5 films
    Shimizu, H
    Sato, H
    Nishimura, S
    Honda, M
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2005, 44 (9A): : 6664 - 6666
  • [23] Electrical properties of anodically oxidized Nb2O5 and Si-doped Nb2O5 films
    Shimizu, Hirofumi
    Sato, Hirohumi
    Nishimura, Shigeoki
    Honda, Mitsutoshi
    Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, 2005, 44 (9 A): : 6664 - 6666
  • [24] Structural and Optical Properties of Nb2O5/SiO2 Powder Prepared by Sol-Gel Method
    Rani, Neelam
    Ahlawat, Rachna
    DAE SOLID STATE PHYSICS SYMPOSIUM 2019, 2020, 2265
  • [25] Electrochromic properties of undoped and lithium doped Nb2O5 films prepared by the sol-gel method
    Bueno, PR
    Avellaneda, CO
    Faria, RC
    Bulhoes, LOS
    ELECTROCHIMICA ACTA, 2001, 46 (13-14) : 2113 - 2118
  • [26] OPTICAL PROPERTIES OF Ta2O5 AND Nb2O5 THIN-FILM WAVEGUIDES FABRICATED BY MOCVD METHOD.
    Nishiwaki, Akira
    Okada, Masaru
    Takada, Naoto
    Watanabe, Hiroaki
    Chubu Daigaku Kogakubu kiyo, 1987, 23 : 37 - 43
  • [27] Effect of Nb2O5 and MgO/Nb2O5 doping on densification, microstructure and wear resistance of alumina
    Chen, Cheng
    Li, Wei
    CERAMICS INTERNATIONAL, 2019, 45 (15) : 18205 - 18209
  • [28] Deposition geometry effect on structural, morphological and optical properties of Nb2O5 nanostructure prepared by hydrothermal technique
    Evan T. Salim
    Raid A. Ismail
    Halemah T. Halbos
    Applied Physics A, 2020, 126
  • [29] Deposition geometry effect on structural, morphological and optical properties of Nb2O5 nanostructure prepared by hydrothermal technique
    Salim, Evan T.
    Ismail, Raid A.
    Halbos, Halemah T.
    APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2020, 126 (11):
  • [30] ELECTROCHROMIC NB2O5 AND NB2O5 SILICONE COMPOSITE THIN-FILMS PREPARED BY SOL-GEL PROCESSING
    LEE, GR
    CRAYSTON, JA
    JOURNAL OF MATERIALS CHEMISTRY, 1991, 1 (03) : 381 - 386
12345