高温用分離膜としての応用を思考したポリマープレカーサーからのSiBCN系セラミックスの合成(<ゲストエディターによる特集>有機-無機変換プロセス)

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概要

• 論文の詳細を見る

• A novel preceramic polymer suitable to form a SiBCN ceramic was synthesized by hydroboration reaction of 1, 3, 5-trivinyl-1, 3, 5-trimethyl-cyclotrisilazane with boranc dimethylsulphide. The obtained polymer denoted as poly (borosilazane) was characterised by FT-IR and NMR spectroscopy and its thermal stability was studied by thermal gravimetric analysis in combination with in situ mass spectrometry (TG/MS). The polymer-to-ceramic transformation was achieved at 1050℃ in inert argon atmosphere yielding black and X-ray amorphous SiBCN ceramics thermally stable up to 1800℃. Using the dip-coating technique, a SiBCN ceramic thin film was formed on a porous alumina substrate. N_2 sorption isotherm analysis revealed that the thin film contained a small amount of micropores of about 0.6nm in diameter, as well as mesopores between 2.7 and 6nm in size. The total pore volume was found to be about three orders of magnitude smaller than that of a hydrogen permselective amorphous silica membrane derived from polysilazane. These results indicated potential application of the SiBCN thin film as a molecular sieve membrane suitable for high-temperature separation of small gas molecules like hydrogen below 0.3nm in size.

• 2006-06-01

著者

• IKUHARA Yumi

  Japan Fine Ceramics Center

• IWAMOTO Yuji

  Japan Fine Ceramics Center

• Iwamoto Yuji

  Japan Fine Ceramics Center (jfcc)

• Iwamoto Yuji

  Japan Fine Ceramic Center

• Hauser Ralf

  Institut Fur Materialwissenschaft Technische Universitat Darmstadt

• Riedel Ralf

  Darmstadt University Of Technology

• Ikuhara Yumi

  Japan Fine Ceramics Center (jfcc)

• HAUSER Ralf

  Darmstadt University of Technology, Institute of Materials Science

• Nahar-BORCHARD Saifun

  Darmstadt University of Technology, Institute of Materials Science, Darmstadt, Germany

• Nahar-borchard Saifun

  Darmstadt University Of Technology Institute Of Materials Science Darmstadt Germany

関連論文

• Development of Fine Porous Alumina Capillaries by a Dry-Wet Spinning Method(Synthesis and Processing,Guest Editors Dedicated to Prof. Gunter Petzow: Modern Trends in Advanced Ceramics)
• 03-P-13 Microstructure Design of LiMn_2O_4 Thin Films through Chemical Solution Deposition
• 高温用分離膜としての応用を思考したポリマープレカーサーからのSiBCN系セラミックスの合成(有機-無機変換プロセス)
• Atomic Structure and Diffusion in Amorphous Si-B-C-N by Molecular Dynamics Simulation
• 新規な非酸化物系ゾルゲル法によるメソポーラスアモルファスSi-C-N膜の合成と評価(有機-無機変換プロセス)
• Preface(Organic-to-Inorganic Conversion Process for Polymer-Derived Ceramics)
• ポリマーから誘導されたケイ素系セラミックス : 合成・性質・応用に関する総説(有機-無機変換プロセス)
• Preface(Guest Editors Dedicated to Prof. Gunter Petzow: Modern Trends in Advanced Ceramics)

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