Design of metastable compound synthetic metod at middle range temperature

• Project/Area Number: 24550087
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Inorganic chemistry
• Research Institution: National Institute for Materials Science
• Principal Investigator: OZAWA Tadashi 独立行政法人物質・材料研究機構, 国際ナノアーキテクトニクス研究拠点, MANA研究者 (90450288)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000); Fiscal Year 2014: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000); Fiscal Year 2013: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000); Fiscal Year 2012: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
• Keywords: 準安定化合物 / 低温反応 / 機能材料 / 反応メカニズム / ディインターカレーション

Outline of Final Research Achievements

We have developed a method to synthesize metastable compounds utilizing PTFE as an active reagent. Such a new synthetic method helps to understand the basic scientific properties of metastable compounds. Furthermore, such knowledge of metastable compounds and the method to produce them can realize their utilization in practical applications.

Research Products

• [Journal Article] Partial alkali-metal ion extraction from K0.8(Li0.27Ti1.73)O4 using PTFE as an extraction reagent† (2014)
  • Author(s): Tadashi C. Ozawa, Takayoshi Sasaki
  • Journal Title: Dalton Transactions Volume: 43 Issue: 39 Pages: 14902-14908
  • DOI: 10.1039/c4dt01869a
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Chemical composition and magnetic property modifications of Na2Ti2Sb2O using PTFE as an alkali–metal ion extraction reagent (2014)
  • Author(s): Tadashi C. Ozawa, Takashi Naka, Akiyuki Matsushita, Susan M. Kauzlarich, Takayoshi Sasaki
  • Journal Title: Journal of Fluorine Chemistry Volume: 168 Pages: 189-192
  • DOI: 10.1016/j.jfluchem.2014.09.028
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Bulk Functional Materials Design Using Oxide Nanosheets as Building Blocks: A New Upconversion Material Fabricated by Flocculation of Ca2Nb3O10 Nanosheets with Rare-Earth Ions (2014)
  • Author(s): Tadashi C. Ozawa, Mitsuko Onoda, Nobuo Iyi, Yasuo Ebina, Takayoshi Sasaki
  • Journal Title: The Journal of Physical Chemistry C Volume: 118 Issue: 3 Pages: 1729-1738
  • DOI: 10.1021/jp410522g
  • Peer Reviewed
• [Journal Article] Exploration of Mid-Temperature Alkali-Metal-Ion Extraction Route Using PTFE (AEP): Transformation of α-NaFeO2-Type Layered Oxides into Rutile-Type Binary Oxides (2012)
  • Author(s): Tadashi C. Ozawa and Takayoshi Sasaki
  • Journal Title: Inorganic Chemistry Volume: 51 Issue: 13 Pages: 7317-7323
  • DOI: 10.1021/ic3006986
  • Peer Reviewed
• [Presentation] AEP reaction: Simultaneous alkali-metal deintercalation and fluorination using PTFE as an active reagent (2015)
  • Author(s): Tadashi C. Ozawa, Takayoshi Sasaki
  • Organizer: 日本化学会第95春季年会
  • Place of Presentation: 日本大学 理工学部船橋キャンパス,船橋,日本
  • Year and Date: 2015-03-26 – 2015-03-29
• [Presentation] Synthesis of upconversion materials by flocculation of oxide nanosheets with rare-earth ions (2014)
  • Author(s): T. C. Ozawa, M. Onoda, N. Iyi, Y. Ebina, T. Sasaki
  • Organizer: Vth International Workshop on Layered Materials
  • Place of Presentation: University of Haute Alsace,Mulhouse,France
  • Year and Date: 2014-08-27 – 2014-08-29
• [Presentation] A method of alkali-metal ion extraction using PTFE (AEP) as an active reagent (2014)
  • Author(s): Tadashi C. Ozawa, Takashi Naka, Akiyuki Matsushita, Susan M. Kauzlarich, Takayoshi Sasaki
  • Organizer: Gordon Research conference Solid State Chemistry
  • Place of Presentation: Colby-Sawyer College,New London, NH ,USA
  • Year and Date: 2014-07-27 – 2014-08-01
• [Presentation] 希土類イオンを用いた酸化物ナノシート凝集によるアップコンバージョン材料デザイン (2014)
  • Author(s): 小澤忠司・小野田みつ子・井伊伸夫・海老名保男・佐々木高義
  • Organizer: 日本化学会春季年会
  • Place of Presentation: 名古屋大学
• [Presentation] Exploration of mid-temperature alkali-metal ion extraction from layered compounds using polytetrafluoroethylene and alkali-metal ion extracted layered compounds as precursors for metastable phase synthesis (2013)
  • Author(s): Tadashi C. Ozawa, Takayoshi Sasaki
  • Organizer: MANA International Symposium
  • Place of Presentation: Tsukuba International Congress Center
• [Presentation] General Applicability of Alkali-Metal Ion Extraction and Phase Transformation Reactions at Mid-Temperature Utilizing PTFE Powder (2013)
  • Author(s): Tadashi C. Ozawa, Takayoshi Sasaki
  • Organizer: ECSSC14 - European Conference on Solid State Chemistry
  • Place of Presentation: Espace Agora Domaine du Haut-Carré in Talence, France
• [Presentation] Exploration of mid-temperature alkali-metal ion extraction from layered compounds using polytetrafluoroethylene and alkali-metal ion extracted layered compounds as precursors for metastable phase synthesis (2013)
  • Author(s): Tadashi C. Ozawa and Takayoshi Sasaki
  • Organizer: MANA International Symposium 2013
  • Place of Presentation: つくば国際会議場、茨城県
• [Presentation] Mid-temperature alkali-metal ion extraction from layered compounds using PTFE (AEP) and transformation of the alkali-metal ion extracted layered compounds as precursors into metastable phases (2012)
  • Author(s): Tadashi C. Ozawa and Takayoshi Sasaki
  • Organizer: Gordon Research Conferences - Solid State Chemistry
  • Place of Presentation: Colby-Sawyer College, NH, USA
• [Presentation] Exploration of mid-temperature alkali-metal ion extraction reactions from layered compounds using polytetrafluoroethylene (AEP) and alkali-metal ion extracted layered compounds as precursors for metastable phase synthesis (2012)
  • Author(s): Tadashi C. Ozawa and Takayoshi Sasaki
  • Organizer: IV International Workshop on Layered Materials
  • Place of Presentation: University of Campinas
• [Remarks] NIMS Researchers Database
  • URL: http://samurai.nims.go.jp/OZAWA_Tadashi-j.html