Study on Thermal Decomposition of MnO<SUB>2</SUB> and Mn<SUB>2</SUB>O<SUB>3</SUB> by Thermal Analysis

• Terayama Kiyoshi

  Department of Metallurgy, Faculty of Engineering, Toyama University

• Ikeda Masao

  Department of Metallurgy, Faculty of Engineering, Toyama University

抄録

The present paper is concerned with the kinetics of thermal decomposition of manganese oxides and nonstoichiometric compounds formed in these reaction processes, studied by means of the thermal analyses (TG, DTA and DSC) and gas chromatography (GC).<BR>The decomposition of MnO₂ to Mn₂O₃ proceeds at about 756 K, and the heat of reaction is 176±8 kJ/mol of O₂. For the decomposition of Mn₂O₃ to Mn₃O₄, the activation energy of about 163 kJ/mol of O₂ is obtained. The nonstoichiometric compounds, MnO_1.61 and MnO_1.42, seem to be formed in the thermal decomposition processes of MnO₂ and Mn₂O₃, respectively.

収録刊行物

• Transactions of the Japan Institute of Metals

  Transactions of the Japan Institute of Metals 24 (11), 754-758, 1983

  社団法人 日本金属学会

キーワード

• thermal decomposition
• manganese oxide
• thermal analysis
• gas chromatograph
• nonstoichiometric compound

詳細情報

• CRID: 1390001205118322816
• NII論文ID: 130003486022
• DOI: 10.2320/matertrans1960.24.754
• COI: 1:CAS:528:DyaL2cXlslersw%3D%3D
• ISSN: 24324701
• ISSN: 00214434
• Web Site: https://www.jstage.jst.go.jp/article/matertrans1960/24/11/24_11_754/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可