Home

Citation: Ren Qing-Li, Zhang Zan-Feng, Luo Qiang. Preparation and Thermal Decomposition Mechanism of Nanocrystalline Mg, Al-hydrotalcite[J]. Acta Physico-Chimica Sinica, ;2004, 20(03): 318-322. doi: 10.3866/PKU.WHXB20040321 shu

Preparation and Thermal Decomposition Mechanism of Nanocrystalline Mg, Al-hydrotalcite

1.
State Key Laboratory of Electrical Insulation for Power Equipment, Xi’an Jiaotong University, Xi’an　710049; School of Technical Physics, Xidian University, Xi’an　710071; School of the Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an　710049; The Second Artillery Institute of Engineering, Xi’an　710025

Received Date: 13 August 2003
Available Online: 15 March 2004

The preparation and the thermal decomposition mechanism of nanocrystalline Mg, Al-hydrotalcite were studied. The phase composition and the microstructures of the samples were tested by XRD and TEM. The highly pure acicular nanocrystalline Mg, Al-hydrotalcite was synthesized by the one-step liquid reaction method at atmospheric pressure. Based on the DSC, DTA and TG test results, the thermal properties of the nanocrystalline Mg, Al-hydrotalcite were investigated, and two thermal decomposition process stages were recognized. In its first decomposition stage, the crystal water is released. In its second decomposition stage, the hydroxyl(OH－) octahedral structure is destroyed, with the hydroxyl(OH－) released as the gas of H2O and CO32- anion released as the gas of CO2, and M and Al2O3 are formed. Moreover, it is also found that the longer the reaction time, the higher the beginning decomposition temperature and the more the amount of the residual oxides (M and Al2O3). Besides, the non-isothermal chemical reaction kinetic theory was employed here, and the Šatava-Šesták integral method, Achar differential method and Ozawa integral method were used. After the calculation and comparison, the thermal decomposition mechanical function of the acicular nanocrystalline Mg, Al-hydrotalcite in its second thermal decomposition is confirmed as the functional form of (1－α)－1－1.
- Mg;Al-hydrotalcite;Acicular nanocrystalline;Thermal analysis;　Mechanical function
1. [1]
  Yahui HAN , Jinjin ZHAO , Ning REN , Jianjun ZHANG . Synthesis, crystal structure, thermal decomposition mechanism, and fluorescence properties of benzoic acid and 4-hydroxy-2, 2′: 6′, 2″-terpyridine lanthanide complexes. Chinese Journal of Inorganic Chemistry, 2025, 41(5): 969-982. doi: 10.11862/CJIC.20240395
2. [2]
  Xiaosong PU , Hangkai WU , Taohong LI , Huijuan LI , Shouqing LIU , Yuanbo HUANG , Xuemei LI . Adsorption performance and removal mechanism of Cd(Ⅱ) in water by magnesium modified carbon foam. Chinese Journal of Inorganic Chemistry, 2024, 40(8): 1537-1548. doi: 10.11862/CJIC.20240030
3. [3]
  Wenyan Dan , Weijie Li , Xiaogang Wang . The Technical Analysis of Visual Software ShelXle for Refinement of Small Molecular Crystal Structure. University Chemistry, 2024, 39(3): 63-69. doi: 10.3866/PKU.DXHX202302060
4. [4]
  Na Li , Limin Shao . Deduction of the General Formula of the Inverse Function of the Titration Curve. University Chemistry, 2025, 40(3): 390-401. doi: 10.12461/PKU.DXHX202409134
5. [5]
  Tianlong Zhang , Rongling Zhang , Hongsheng Tang , Yan Li , Hua Li . Online Monitoring and Mechanistic Analysis of 3,5-diamino-1,2,4-triazole (DAT) Synthesis via Raman Spectroscopy: A Recommendation for a Comprehensive Instrumental Analysis Experiment. University Chemistry, 2024, 39(6): 303-311. doi: 10.3866/PKU.DXHX202312006
6. [6]
  Zijuan LI , Xuan LÜ , Jiaojiao CHEN , Haiyang ZHAO , Shuo SUN , Zhiwu ZHANG , Jianlong ZHANG , Yanling MA , Jie LI , Zixian FENG , Jiahui LIU . Synthesis of visual fluorescence emission CdSe nanocrystals based on ligand regulation. Chinese Journal of Inorganic Chemistry, 2025, 41(2): 308-320. doi: 10.11862/CJIC.20240138
7. [7]
  Yaping Li , Sai An , Aiqing Cao , Shilong Li , Ming Lei . The Application of Molecular Simulation Software in Structural Chemistry Education: First-Principles Calculation of NiFe Layered Double Hydroxide. University Chemistry, 2025, 40(3): 160-170. doi: 10.12461/PKU.DXHX202405185
8. [8]
  Xinting XIONG , Zhiqiang XIONG , Panlei XIAO , Xuliang NIE , Xiuying SONG , Xiuguang YI . Synthesis, crystal structures, Hirshfeld surface analysis, and antifungal activity of two complexes Na(Ⅰ)/Cd(Ⅱ) assembled by 5-bromo-2-hydroxybenzoic acid ligands. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1661-1670. doi: 10.11862/CJIC.20240145
9. [9]
  Hexing SONG , Zan SUN . Synthesis, crystal structure, Hirshfeld surface analysis, and fluorescent sensing for Fe³⁺ of an Mn(Ⅱ) complex based on 1-naphthalic acid. Chinese Journal of Inorganic Chemistry, 2025, 41(5): 885-892. doi: 10.11862/CJIC.20240402
10. [10]
  Liwei Wang , Guangran Ma , Li Wang , Fugang Xu . A Comprehensive Analytical Chemistry Experiment: Colorimetric Detection of Vitamin C Using Nanozyme and Smartphone. University Chemistry, 2024, 39(8): 255-262. doi: 10.3866/PKU.DXHX202312094
11. [11]
  Liyang ZHANG , Dongdong YANG , Ning LI , Yuanyu YANG , Qi MA . Crystal structures, luminescent properties and Hirshfeld surface analyses of three cadmium(Ⅱ) complexes based on 2-(3-(pyridin-2-yl)-1H-pyrazol-1-yl)benzoate. Chinese Journal of Inorganic Chemistry, 2024, 40(10): 1943-1952. doi: 10.11862/CJIC.20240079
12. [12]
  Zhuo WANG , Junshan ZHANG , Shaoyan YANG , Lingyan ZHOU , Yedi LI , Yuanpei LAN . Preparation and photocatalytic performance of CeO₂-reduced graphene oxide by thermal decomposition. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1708-1718. doi: 10.11862/CJIC.20240067
13. [13]
  Ruilin Han , Xiaoqi Yan . Comparison of Multiple Function Methods for Fitting Surface Tension and Concentration Curves. University Chemistry, 2024, 39(7): 381-385. doi: 10.3866/PKU.DXHX202311023
14. [14]
  Yang Lv , Yingping Jia , Yanhua Li , Hexiang Zhong , Xinping Wang . Integrating the Ideological Elements with the “Chemical Reaction Heat” Teaching. University Chemistry, 2024, 39(11): 44-51. doi: 10.12461/PKU.DXHX202402059
15. [15]
  Limei CHEN , Mengfei ZHAO , Lin CHEN , Ding LI , Wei LI , Weiye HAN , Hongbin WANG . Preparation and performance of paraffin/alkali modified diatomite/expanded graphite composite phase change thermal storage material. Chinese Journal of Inorganic Chemistry, 2024, 40(3): 533-543. doi: 10.11862/CJIC.20230312
16. [16]
  Xintian Xie , Sicong Ma , Yefei Li , Cheng Shang , Zhipan Liu . Application of Machine Learning Potential-based Theoretical Simulations in Undergraduate Teaching Laboratory Course Design. University Chemistry, 2025, 40(3): 140-147. doi: 10.12461/PKU.DXHX202405164
17. [17]
  Mengfei He , Chao Chen , Yue Tang , Si Meng , Zunfa Wang , Liyu Wang , Jiabao Xing , Xinyu Zhang , Jiahui Huang , Jiangbo Lu , Hongmei Jing , Xiangyu Liu , Hua Xu . Epitaxial Growth of Nonlayered 2D MnTe Nanosheets with Thickness-Tunable Conduction for p-Type Field Effect Transistor and Superior Contact Electrode. Acta Physico-Chimica Sinica, 2025, 41(2): 100016-. doi: 10.3866/PKU.WHXB202310029
18. [18]
  Heng Zhang . Determination of All Rate Constants in the Enzyme Catalyzed Reactions Based on Michaelis-Menten Mechanism. University Chemistry, 2024, 39(4): 395-400. doi: 10.3866/PKU.DXHX202310047
19. [19]
  Jiajie Li , Xiaocong Ma , Jufang Zheng , Qiang Wan , Xiaoshun Zhou , Yahao Wang . Recent Advances in In-Situ Raman Spectroscopy for Investigating Electrocatalytic Organic Reaction Mechanisms. University Chemistry, 2025, 40(4): 261-276. doi: 10.12461/PKU.DXHX202406117
20. [20]
  Ruming Yuan , Pingping Wu , Laiying Zhang , Xiaoming Xu , Gang Fu . Patriotic Devotion, Upholding Integrity and Innovation, Wholeheartedly Nurturing the New: The Ideological and Political Design of the Experiment on Determining the Thermodynamic Functions of Chemical Reactions by Electromotive Force Method. University Chemistry, 2024, 39(4): 125-132. doi: 10.3866/PKU.DXHX202311057

Get Citation

PDF

XML

Metrics

PDF Downloads(2877)
Abstract views(3756)
HTML views(4)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return