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DESIGN OF HIGHLY EFFICIENT LIQUID-PHASE OXIDATION CATALYSTS OF TITANOSILICATES THROUGH PRECISE CONTROL OF ZEOLITE STRCUTURES

Research Project

Project/Area Number 13305056
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field 触媒・化学プロセス
Research InstitutionYOKOHAMA NATIONAL UNIVERSITY

Principal Investigator

TATSUMI Takashi  YOKOHAMA NATIONAL UNIVERSITY, FACULTY OF ENGINEERING, PROFESSOR, 大学院・工学研究院, 教授 (30101108)

Co-Investigator(Kenkyū-buntansha) WU Peng  YOKOHAMA NATIONAL UNIVERSITY, FACULTY OF ENGINEERING, RESEARCH ASSOCIATE, 大学院・工学研究院, 助手 (60322096)
YOSHITAKE Hideaki  YOKOHAMA NATIONAL UNIVERSITY, FACULTY OF ENVIRONMENTAL AND INFORMATION SCIENCE, ASSOCIATE PROFESSOR, 大学院・環境情報研究院, 助教授 (20230716)
Project Period (FY) 2001 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥55,640,000 (Direct Cost: ¥42,800,000、Indirect Cost: ¥12,840,000)
Fiscal Year 2003: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2002: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2001: ¥48,100,000 (Direct Cost: ¥37,000,000、Indirect Cost: ¥11,100,000)
KeywordsTitanosilicate / Zeolite / Hydrothermal Synthesis / Dry Gel Conversion Method / Fluoride Method / Liquid-Phase Oxidation / Hydrogen Peroxide / 構造可逆転換 / 層剥離
Research Abstract

Titanosilicates containing tetrahedral Ti ions in zeolite framework prove to be attractive catalysts owing to their capability of oxidizing a variety of organic compounds with clean oxidant of hydrogen peroxide in the liquid-phase. In the last two decades, the studies have been focused on two representative titanosilicates, MFI type TS-1 and BEA type Ti-Beta. However, these two titanosilicates have a lot of difficult problems to be tackled. Medium-pore TS-a lacks the ability to oxidize bulky substrates, and there is still a large space to improve its specific activity per Ti site. Ti-Beta, on the other hand, encounters serious disadvantages of easy leaching of Ti active species probably due to its structural stacking faults. From the viewpoint of developing new heterogeneous catalytic processes for alkene epoxidation, it is urgent to prepare more efficient titanosilicates. In this study, we have succeeded in incorporating Ti into MWW zeolite of a very unique pore structure, which leads to a new generation of titanosilicate catalyst. Both hydrothermal synthesis using boric acid as a crystallization-supporting agent and postsynthesis through a reversible structural conversion result in Ti-MWW catalysts extremely active for alkene epoxidation. Ti-MWW is also converted into the catalysts with accessible reaction spaces suitable for bulky reactions by delamination or novel acid treatment.
Modification methods for developing highly active and selective catalysts from Ti-Beta have also been established. The methods involve selective poisoning of acid sites and fluorine contained within the structure of Beta zeolite, but without negative influence on the catalytic performance of framework Ti species.
Ti-containing mesoporous materials, Ti-SBA-15 and Ti-MSU-G which have higher hydrothermal stability and are stable against Ti leaching have been prepared successfully by novel postsynthesis method and direct hydrothermal synthesis, respectively.

Report

(4 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • 2001 Annual Research Report
  • Research Products

    (68 results)

All Other

All Publications (68 results)

  • [Publications] P.Wu, T.Tatsumi, T.Komatsu, T.Yashima: "A Novel Titanosilicate with MWW Structure.I.Hydrothermal Synthesis, Elimination of Extraframework Titanium, and Characterization"J.Phys.Chem.B. 105. 2897-2905 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] P.Wu, T.Tatsumi: "Extremely High trans Selectivity of Ti-MWW in Epoxidation of Alkenes with Hydrogen Peroxide"Chem.Commun.. 897-898 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] P.Wu, T.Komatsu, T.Yashima, T.Tatsumi: "Singular Catalytic Properties of Ti-MWW in the Selective Oxidation of Alkenes"Stud.Surt.Sci.Catal. 135. 4375-4382 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] P.Wu, T.Tatsumi, T.Komatsu, T.Yashima: "A Novel Titanosilicate with MWW Structure : II.Catalytic Properties in the Selective Oxidation of Alkenes"J.Catal.. 202. 245-255 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Y.Goa, P.Wu, T.Tatsumi: "A Dramatic Improvement of Epoxide Selectivity of [Ti, Al]-Beta by Ion-exchange with Quaternary Ammonium Salts"Chem.Commun.. 1714-1715 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] T.Miyaji, P.Wu, T.Tatsumi: "Selective Oxidation of Propylene to Propylene Oxide over Ti-MCM-41 Supporting Metal Nitrate"Catal.Today. 71. 169-176 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] K.Yamamoto, Y.Nohara, T.Tatsumi: "Synthesis and Catalysis of Ti-MCM-41 Materials with Organic-Inorganic Hybrid Network"Chem.Lett.. 648-649 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] P.Wu, T.Tatsumi: "Unique trans-Selectivity of Ti-MWW in Epoxidation of cis/trans Alkenes with Hydrogen Peroxide"J.Phys.Chem.B. 106. 748-753 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] M.Sasidharan, P.Wu, T.Tatsumi: "Epoxidation of α,β-Unsaturated Cabonyl Compounds over Various Titanosilicates"J.Catal.. 205. 332-338 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] N.Duangamol, P.Wu, T.Tatsumi: "Highly Selective Formation of Cyclopentanol through Liquid-Phase Hydration of Cyclopentene over MCM-22 Catalysts"Chem.Lett.. 224-225 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] P.Wu, T.Tatsumi: "Post-synthesis, Characterization and Catalytic Properties in Alkene Epoxidation of Hydrothermally Stable Mesoporous Ti-SBA-15"Chem.Mater.. 14. 1657-1664 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] P.Wu, T.Tatsumi: "Preparation of B-free Ti-MWW Through Reversible Structural Conversion"Chem.Commun.. 1026-1027 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] M.Sasidharan, P.Wu, T.Tatsumi: "Direct Formation of Pinacols from Olefins over Titano-Silicates"J.Catal. 209. 260-265 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 呉 鵬: "ゼオライト構造のソフト性を生かした触媒設計"触媒. 44. 592-594 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] N.Duangamol, P.Wu, T.Tatsumi: "High Selectivity of MCM-22 for Cyclopentanol Formation in Liquid-Phase Cyclopentene Hydration"J.Catal.. 213. 272-280 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] T.Yokoi, P.Wu, T.Tatsumi: "Para-Selectivity Enhancement by Coexistent Molecules in Phenol Hydroxylation over TS-1/H_2O_2 System"Catal.Commun.. 4(1). 11-15 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] P.Wu, T.Tatsumi: "A Novel Titanosilicate with MWW Structure : III.Highly Efficient and Selective Production of Glycidol through Epoxidation of Allyl Alcohol with H_2O_2"J.Catal. 214. 317-326 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] N.Duangamol, P.Wu, T.Tatsumi: "Highly Active Delaminated Ti-MWW for Epoxidation of Bulky Cycloalkenes with Hydrogen Peroxide"Chem.Lett. 32(4). 2-3 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] S.Ikeda, H.Nur, P.Wu, T.Tatsumi, B.Ohtani: "Effect of Titanium Active Site Location on Activity of Phase Boundary Catalyst Particles for Alkene Epoxidation with Aqueous Hydrogen Peroxide"Stud.Surf.Sci.Catal.. 145. 251-2543 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] P.Wu, H.Sugiyama, T.Tatsumi: "Direct Synthesis of Hydrothermally Stable Mesoporous Ti-MSU-G and its Catalytic Properties in Liquid-Phase Epoxidation"Stud.Surf.Sci.Catal.. 146. 613-616 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 呉 鵬, 辰巳 敬: "高性能チタノシリケートの合成と固体選択酸化触媒反応への応用"ゼオライト. 20. 147-155 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] W.Fan, P.Wu, S.Namba, T.Tatsumi: "A Titanosilicate That is Structurally Analogous to MWW Lamellar Precursor"Angw.Chem.Ind.Ed.. 43. 236-240 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Y.Goa, P.Wu, T.Tatsumi: "Liquid-Phase Knovenagel Reactions over Modified Basic Microporous Titanosilicate EST-10"J.Catal.. 224. 107-114 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Y.Goa, P.Wu, T.Tatsumi: "The Influence of Fluorine on Catalytic Performance of Ti-Beta Zeolite"J.Phys.Chem.B. 108. 4242-4244 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] P.Wu, T.Tatsumi: "A New Generation of Titanosilicate Catalyst : Preparation and Application to Liquid-Phase Epoxidation of Alkenes"Catalysis Survey from Asia. 8. 137-148 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Y.Goa, H.Yoshitake, P.Wu, T.Tatsumi: "Controlled Detitanation of ETS-10 Materials Through the Post-Synthetic Treatment and Their Applications to the Liquid-Phase Epoxidation of Alkenes"Microporous Mesoporous Mater.. 70. 93-101 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] T.Tatsumi: "Handbook of Porous Solids, Volume 2"Wiley-VCH. 903-936 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] P.Wu, T.Tatsumi, T.Komatsu, T.Yashima: "A Novel Titanosilicate with MWW Structure. I.Hydrothermal Synthesis, Elimination of Extraframework Titanium, and Characterization"J.Phys.Chem.B. 105. 2897-2905 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] P.Wu, T.Tatsumi: "Extremely High trans Selectivity of Ti-MWW in Epoxidation of Alkenes with Hydrogen Peroxide"Chem.Commun. 897-898 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] P.Wu, T.Komatsu, T.Yashima, T.Tatsumi: "Singular Catalytic Properties of Ti-MWW in the Selective Oxidation of Alkenes"Stud.Surf.Sci.Catal. (Zeolites and Mesoporous Materials at the Dawn of the 21st Century). 135. 4375-4382 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] P.Wu, T.Tatsumi, T.Komatsu, T.Yashima: "A Novel Titanosilicate with MWW Structure : II. Catalytic Properties in the Selective Oxidation of Alkenes"J.Catal.. 202. 245-255 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Y.Goa, P.Wu, T.Tatsumi: "A Dramatic Improvement of Epoxide Selectivity of [Ti,Al]-Beta by Ion-exchange with Quaternary Ammonium Salts"Chem.Commun.. 1714-1715 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] T.Miyaji, P.Wu, T.Tatsumi: "Selective Oxidation of Propylene to Propylene Oxide over Ti-MCM-41 Supporting Metal Nitrate"Catal.Today. 71. 169-176 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] K.Yamamoto, Y.Nohara, T.Tatsumi: "Synthesis and Catalysis of Ti-MCM-41 Materials with Organic-Inorganic Hybrid Netework"Chem.Lett.. 648-649 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] P.Wu, T.Tatsumi: "Unique trans-Selectivity of Ti-MWW in Epoxidation of cis/trans Alkenes with Hydrogen Peroxide"J.Phys.Chem.B. 106. 748-753 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] M.Sasidharan, P.Wu, T.Tatsumi: "Epoxidation of α,β-Unsaturated Cabonyl Compounds over Various Titanosilicates"J.Catal.. 205. 332-338 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] N.Duangamol, P.Wu, T.Tatsumi: "highly Selective Formation of Cyclopentanol through Liquid-Phase Hydration of Cyclopentene over MCM-22 Catalysts"Chem.Lett.. 224-225 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] P.Wu, T.Tatsumi, T.Komatsu, T.Yashima: "Post-synthesis, Characterization and Catalytic Properties in Alkene Epoxidation of Hydrothermally Stable Mesoporous Ti-SBA-15"Chem.Mater.. 14(4). 1657-1664 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] P.Wu, T.Tatsumi: "Preparation of B-free Ti-MWW Through Reversible Structural Conversion"Chem.Commun.. 1026-1027 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] M.Sasidharan, P.Wu, T.Tatsumi: "Direct Formation of Pinacols from Olefins over Titano-Silicates"J.Catal. 209. 260-265 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] P.Wu: "A Novel Postsynthesis Method For Preparation of Metallosilicates by Taking Advantage of Structural Flexibility of Lamellar Zeolites"Shokubai. 44(8). 562-594 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] N.Duangamol, P.Wu, T.Tatsumi: "High Selectivity of MCM-22 for Cyclopentanol Formation in Liquid-Phase Cyclopentene Hydration"J.Catal.. 213. 272-280 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] T.Yokoi, P.Wu, T.Tatsumi: "Para-Selectivity Enhancement by Coexistent Molecules in Phenol Hydroxylation over TS-1/H_2O_2 System"Catal.Commun.. 4(1). 11-15 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] P.Wu, T.Tatsumi: "A Novel Titanosilicate with MWW Structure : III. Highly Efficient and Selective Production of Glycidol through Epoxidation of Allyl Alcohol with H_2O_2"J.Catal.. 214. 317-326 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] N.Duangamol, P.Wu, T.Tatsumi: "highly Active Delaminated Ti-MWW for Epoxidation of Bulky Cycloalkenes with Hydrogen peroxide"Chem.Lett.. 32(4). 326-327 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] S.Ikeda, H.Nur, P.Wu, T.Tatsumi, B.Ohtani: "Effect of Titanium Active Site Location on Activity of Phase Boundary Catalyst Particles for Alkene Epoxidation with Aqueous Hydrogen Peroxide"Stud.Surf.Sci.Catal.. 145. 251-2543 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] P.Wu, H.Sugiyama, T.Tatsumi: "Direct Synthesis of Hydrothermally Stable Mesoporous Ti-MSU-G and its Catalytic Properties in Liquid-Phase Epoxidation"Stud.Surf.Sci.Catal. 146. 613-616 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] P.Wu, T.Tatsumi: "Highly Effective Titanosilicate Catalysts : Novel Preparation and Application to Alkene Epoxidation"Zeolite News Lett.. 20(4). 147-155 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] W.Fan, P.Wu, S.Namba, T.Tatsumi: "A Titanosilicate That is Structurally Analogous to MWW Lamellar Precursor"Angw.Chem.. 43. 236-240 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Y.Goa, P.Wu, T.Tatsumi: "Liquid-Phase Knovenagel Reactions over Modified Basic Microporous Titanosilicate EST-10"J.Catal. 224. 107-114 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Y.Goa, P.Wu, T.Tatsumi: "The Influence of Fluorine on Catalytic Performance of Ti-Beta Zeolite"J.Phys.Chem.B. 108(14). 4242-4244 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] P.Wu, T.Tatsumi: "A New Generation of Titanosilicate Catalyst : Preparation and Application to Liquid-Phase Epoxidation of Alkenes"Catalysis Survey from Asia. 8(2). 137-148 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Y.Goa, H.Yoshitake, P.Wu, T.Tatsumi: "Controlled Detitanation of ETS-10 Materials Through the Post-Synthetic Treatment and Their Applications to the Liquid-Phase Epoxidation of Alkenes"Microporous Mesoporous Mater.. 70. 93-101 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Y.Goa, P.Wu, T.Tatsumi: "Catalytic Performance of [Ti,Al]-Beta in the Alkene Epoxidation Controlled by the Postsynthetic Ion Exchange"J.Phys.Chem. B. (in press). (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] P.Wu, T.Miyaji, Y.Liu, M.He, T.Tatsumi: "Synthesis of Ti-MWW by A Dry-Gel Conversion Method"Catal.Today. (in press). (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] P.Wu, T.Tatsumi: "A Novel Titanosilicate with MWW Structure : III. Highly Efficient and Selective Production of Glycidol through Epoxidation of Allyl Alcohol with H_2O_2"J.Catal.. 214. 317-326 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] W.Fan, P.Wu, T.Tatsumi: "A New Titanosilicate Structurally Analogous to MWW Lamellar Precursor"Angw.Chem. 43. 236-240 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] P.Wu, T.Tatsumi: "Preparation of B-free Ti-MWW Through Reversible Structural Conversion"Chem.Commun.. 1026-1027 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] M.Sasidharan, P.Wu, T.Tatsumi: "Direct Formation of Pinacols from Olefins over Titano-Silicates"J.Catal.. 209. 260-265 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] T.Yokoi, P.Wu, T.Tatsumi: "Para-Selectivity Enhancement by Coexistent Molecules in Phenol Hydroxylation over TS-1/H_2O_2 System"Catal.Commun.. 4(1). 11-15 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] N.Duangamol, P.Wu, T.Tatsumi: "High Selectivity of MCM-22 for Cyclopentanol Formation in Liquid-Phase Cyclopentene Hydration"J.Catal.. 213. 272-280 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] N.Duangamol, P.Wu, T.Tatsumi: "Highly Active Delaminated Ti-MWW for Epoxidation of Bulky Cycloalkenes with Hydrogen Peroxide"Chem.Lett.. 32(4). 2-3 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] P.Wu, T.Tatsumi, T.Komatsu, T.Yashima: "Hydrothermal Synthesis of A Novel Titanosilicate with MWW Structure. I. Hydrothermal Synthesis, Elimination of Extraframewrok Titanium, and Characterization"J.Phys. Chem.B. 105. 2897-2905 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Y.Goa, P.Wu, T.Tatsumi: "A Dramatic Improvement of Epoxide Selectivity of [Ti, Al]-Beta by Ion-exchange with Quaternary Ammouium Salts"Chem. Commun.. 1714-1715 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] P.Wu, T.Tatsumi: "Extremely High trans Selectivity of Ti-MWW in Epoxidation of Alkenes with Hydrogen Peroxide"Chem. Commun.. 897-898 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] P.Wu, T.Tatsumi: "Unique trans-Selectivity of Ti-MWW in Epoxidation of cis/trans Alkenes with Hydrogen Peroxide"J. Phys. Chem. B. 106. 748-753 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] M.Sasidharan, P.Wu, T.Tatsumi: "Epoxidation of α, β-Unsaturated Cabonyl Compounds over Various Titanosilicates"J. Catal.. 205. 332-338 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] P.Wu, T.Tatsumi, T.Komatsu, T.Yashima: "Post-synthesis, Characterization and Catalytic Properties in Alk ene Epoxidation of Hydrothermally Stable Mesoporous Ti-SBA-15"Chem. Mater.. (in press). (2002)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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