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| 1 | Selective liquid phase oxidation of cyclohexane over Pt/CeO_(2)-ZrO_(2)-SnO_(2)/SiO_(2)catalysts with molecular oxygen显示文摘Partial oxidation of cyclohexane into cyclohexanone and cyclohexanol(KA-oil)is an industrially significant reaction for producing precursors for the synthesis ofε-caprolactam and adipic acid,which are the building blocks of nylon.However,to date,the cyclohexane conversion ratio has usually been limited to less than 6%to prevent further oxidation of the cyclohexanol and cyclohexanone targets.In this study,we report that Pt/CeO_(2)-ZrO_(2)-SnO_(2)/SiO_(2),in which CeO2-ZrO2-SnO2 provide reactive oxygen molecules from inside the bulk,can act as efficient catalysts.Optimization of the catalyst composition and reaction conditions provided a cyclohexane conversion ratio of 24.1%and a total selectivity for cyclohexanol and cyclohexanone of 83.4%at 130℃in 0.5 MPa(4.9 atm)air for 7 h over a 5wt%Pt/16wt%Ce_(0.68)Zr_(0.17)Sn_(0.15)O_(2.0)/SiO_(2)catalyst.This catalyst has significant advantages over conventional catalysts because the reaction proceeds at a lower pressure,and there is no need for toxic radical initiators or free-radical scavengers. | Nobuhito IMANAKA Toshiyuki MASUI Kazuya JYOKO | 2015 | Journal of Advanced Ceramics2015，4，2： | 4 |
| 2 | Catalytic liquid-phase oxidation of acetaldehyde to acetic acid over a Pt/CeO_2–ZrO_2–SnO_2/γ-alumina catalyst显示文摘Pt/CeO2–ZrO2–SnO2/γ-Al2O3 catalysts were prepared by co-precipitation and wet impregnation methods for catalytic oxidation of acetaldehyde to acetic acid in water. In the present catalysts, Pt and CeO2–ZrO2–SnO2 were successfully dispersed on the γ-Al2O3 support.Dependences of platinum content and reaction time on the selective oxidation of acetaldehyde to acetic acid were investigated to optimize the reaction conditions for obtaining both high acetaldehyde conversion and highest selectivity to acetic acid. Among the catalysts, a Pt(6.4 wt.%)/Ce0.68Zr0.17Sn0.15O2.0(16 wt.%)/γ-Al2O3 catalyst showed the highest acetaldehyde oxidation activity. On this catalyst, acetaldehyde was completely oxidized after the reaction at 0°C for 8 hr, and the selectivity to acetic acid reached to 95%and higher after the reaction for 4 hr and longer. | Pil-Gyu Choi Takanobu Ohno Toshiyuki Masui Nobuhito Imanaka | 2015 | Journal of Environmental Sciences2015，27，10： | 2 |
| 3 | Catalytic liquid phase oxidation of 1,4-dioxane over a Pt/CeO_(2)-ZrO_(2)-Bi_(2)O_(3)/SBA-16 catalyst显示文摘A Pt/CeO_(2)-ZrO_(2)-Bi_(2)O_(3)/SBA-16(Santa Barbara Amorphous No.16)catalyst was prepared by hydrothermal and wet impregnation methods for catalytic purification of 1,4-dioxane in water.SBA-16 has a number of mesopores and the average size of the pores is 9.4 nm.In the present catalyst,platinum and CeO_(2)-ZrO_(2)-Bi_(2)O_(3)were successfully dispersed in the pores of the SBA-16 support,and the temperature dependence of the liquid phase oxidation of 1,4-dioxane was examined.The oxidation reaction proceeded effectively in the air atmosphere in the temperature range of 40-80℃. | Pil-Gyu CHOI Takanobu OHNO Nashito FUKUHARA Toshiyuki MASUI Nobuhito IMANAKA | 2015 | Journal of Advanced Ceramics2015，4，1： | 2 |
| 4 | Effect of surface modification by chemical filing on the redox behavior of a ceria-zircinia mixed oxide 显示文摘 | Tetsuya Ozaki Ken-ichi Machida | 1999 | Jonral of Alloys and Compounds1999，292，： | 1 |
| 5 | Preparation of ceria-zirconia sub-catalysts for automotive exhaust cleaning 显示文摘 | Masui Toshiyuki Ozaki Tetsuya Machida Ken-ichi Adachi Ginya | 2000 | Journal of Alloys and Compounds2000，3033，04： | 1 |
| 6 | Preparation of the cubic-type La:O3 phase by thermal decomposition of LaI3显示文摘 | IMANAKA Nobuhito MASUI Toshiyuki KATO Yasuhiro | 2005 | Journal of Solid State Chemistry2005，178，： | 1 |
| 7 | Preparation of ceria-zirconia sub-catalysts for automotive exhaust cleaning 显示文摘 | Tetsuya Ozaki Ken-ichi Machida | 2000 | Journal of Alloys and Compounds2000，3033，04： | 1 |
| 8 | Synthesis of new environment-friendly yellow pigments显示文摘 | Shinya Furukawa Toshiyuki Masui Nobuhito Imanaka | 2005 | Journal of Alloys and Compounds2005，，1： | 1 |
| 9 | Prepa-ration of the cubic-type La2O3 phase by thermal decomposition of LaI3显示文摘 | Nobuhito Imanaka Toshiyuki Masui Yasuhiro Kato | 2005 | Journal of Stare Chemistry2005，17，8： | 1 |
| 10 | Preparation of Ceria-Zirconia Sub-Catalysts for Automotive Exhaust Cleaning 显示文摘 | Toshiyuki Masui Tetsuya Ozaki Ken-ichi Machida | 2000 | Journal of Alloys and Compounds2000，，12： | 1 |
| 11 | Preparation of Fine Sr2CeO4 Particles for a Blue Phosphors显示文摘 | Takanobu Chiga Toshiyuki Masui Nobuhito Imanaka | 2001 | Chemistry Letters2001，12，： | 1 |
| 12 | Synthesis and Luminescence of Sr2CeO4 Fine Particle显示文摘 | Toshiyuki Masui Takanobu Chiga Nobuhito Lmanaka | 2003 | Materials Research Bulletin2003，38，： | 1 |
| 13 | Preparation of ceria-zirconia sub-catalysts for automotive exhaust cleaning 显示文摘 | Toshiyuki Masui Tetsuya Ozaki Ken-ichi Machida | 2000 | Journal of Alloys and Compounds2000，，： | 1 |
| 14 | Total oxidation of toluene on Pt/CeO 2 –ZrO 2 –Bi 2 O 3 /γ-Al 2 O 3 catalysts prepared in the presence of polyvinyl pyrrolidone显示文摘 | Toshiyuki Masui Hayato Imadzu Naoto Matsuyama Nobuhito Imanaka | 2009 | Journal of Hazardous Materials2009，，1： | 1 |
| 15 | Novel environmentally friendly inorganic red pigments based on calcium bismuth oxides显示文摘Novel environmentally friendly inorganic red pigments based on calcium bismuth oxide Ca3(Bi1-xREx)8O15(0≤x≤0.09;RE=Sc^(3+),Er^(3+),Y^(3+),Ho^(3+)and Dy^(3+)),were successfully synthesized and the color properties were characterized.The color of these pigments depended on the composition and the synthesis condition,and the most vivid red color was obtained for the Ca3(Bi0.93Y0.07)8O15 sample calcined thrice at 800℃for 2 h.The L*and a*values corresponding to brightness and red chromaticity for this pigment were 45.6 and+30.6,respectively,which were greater than those of a commercially available Fe2O3 pigment(L^(*)=38.4,a^(*)=+29.5).Since the present pigment is composed of nontoxic and safe elements,it should be an attractive alternative to the conventional Fe2O3 pigment. | WENDUSU Tetsuro YOSHIDA Toshiyuki MASUI Nobuhito IMANAKA | 2015 | Journal of Advanced Ceramics2015，4，1： | 1 |
| 16 | Synthesis of new red emitting phosphors based on rare earth oxy carbonates显示文摘 | Yuhei Mayama Kazuhiko Koyabu Toshiyuki Masui | 2006 | J Alloys Comp2006，418，12： | 1 |
| 17 | Synthesis of a new NASICON-type blue luminescent material 显示文摘 | Toshiyuki Masui Kazuhiko Koyabu Shinji Tamura Nobuhito Imanaka | 2006 | Journal of Alloys and Compounds2006，418，： | 1 |
| 18 | Sythesis and luminescence of Sr2CeO4 fine particles显示文摘 | Toshiyuki Masui Takanobu Chiga Nobuhito Imanaka | 2003 | Materials Research Bulletin2003，38，： | 1 |
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