Abstract
Titanium alkoxides were prepared by anodic dissolution of metallic titanium in absolute ethanol in the presence of HN(C 2H 5) 2·HCl (electro_conductive additives).The solution was directly hydrolyzed to prepare nanocrystalline of TiO 2 (about 10nm)by a sol_gel process.The precursor gels was calcined at T =450 ℃ and 720 ℃for 30 min,and nanocrystalline of TiO 2 (anatase) with high textural and thermal stability was obtained.FTIR,XRD,TEM,were used to characterize the structure of titanium alkoxides and nanocrystalline of TiO 2.The characteristics of nanocrystalline of TiO 2 was depended on the properties of titanium alkoxides.The Ti(OEt) 4 as a source of titanium yielded the best textural and thermal stability nanocrystalline of TiO 2.
Keywords
Electrosynthesis, Titanium alkoxides, Nanocrystalline TiO 2, Sol_gel process
Publication Date
1999-11-28
Online Available Date
1999-11-28
Revised Date
1999-11-28
Received Date
1999-11-28
Recommended Citation
DaoBao Chu, Xingfu Zhou.
Prparation of Nanocrystaline TiO_2(Anatase)with High Thermal and Textural Sability by Electrochemical Method[J]. Journal of Electrochemistry,
1999
,
5(4): Article 15.
DOI: 10.61558/2993-074X.3203
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol5/iss4/15
References
1 赵文宽,方佑龄等.高热稳定性锐钛矿型TiO2 纳米粉体的制备.无机材料学报,1998,13(4) :608 ～612 2 Kavan L,O’Regan B,Kay A,Gratzel M.Preparation of TiO2(anatase) folmson electrodes byanodic oxidative hydrolysis of TiCl3 .J.Electroanal.Chem .1993,346:291～307 3 BanaitJS,PahilPK.Electrochemicalreactionsofsome polyhydricalcoholsatacopperanode.Synth .React.Inorg.Met.Org,Chem .,1986 ,16 :1217 4 Bradley DC,Mehrotra RC,Gaut DP.Metalalkoxides.New York :Academic Press,1978 5 LivageJSanehez C.Sol～gelchemistry .J.of Now Crystalline Solids,1992 ,145 :11～19 6 Turova N Ya,Turevskaya EP.Physicochemical approach to the studies of metal alkoxides.Polyhedron 1998 ,17(5 ～6) :899 ～915 7 Doeuff S,Henry M,Hydrolysisoftitanium alkoxides.Journalof Non_Crystalline Solids 1987 ,89:206 ～216
