摘要
利用反相微乳液法制备出了纳米四水羟基硝酸氧铋[Bi6O4(OH)4](NO3)6(H2O)4,并以热分析为手段对纳米[Bi6O4(OH)4](NO3)6(H2O)4的热分解过程和非等温热分解动力学机理进行了研究.动力学研究确定了[Bi6O4(OH)4](NO3)6(H2O)4脱硝酸根反应属于球对称的三维扩散的D3机理,热分解表观活化能为E=98.90033kJ/mol,lnA=27.13109.
The nano-sized bismuth oxide nitrate hydroxide hydrate [（Bi6O4 （OH）4] （NO3）6 （H2O）4,） was prepared by a reverse microemulsion method. The kinetic behavior and process of thermal decomposition of bismuth oxide nitrate hydroxide hydrate had been studied by thermal analysis at linearly increasing temperature. The decomposition reaction of nitrite in bismuth oxide nitrate hydroxide hydrate was controlled by 3-dimensional diffusion （sphere. Jander equ. ） growth mechanism （D3）. The activation energy were E=98.90033 kJ/mol,lnA=27. 13109.
出处
《华中师范大学学报（自然科学版）》
CAS
CSCD
2007年第1期78-81,共4页
Journal of Central China Normal University：Natural Sciences
基金
湖北省重点科技攻关项目(99100310)
催化材料科学湖北省重点实验室开放基金(CHCL06008)
