Search Results - "Kondo, Junko N"

Control of the Al Distribution in the Framework of ZSM‑5 Zeolite and Its Evaluation by Solid-State NMR Technique and Catalytic Properties by Yokoi, Toshiyuki, Mochizuki, Hiroshi, Namba, Seitaro, Kondo, Junko N, Tatsumi, Takashi

“…The effects of the organic structure-directing agents (OSDAs) and Na cations for the synthesis of ZSM-5 on the location of Al atom in the framework as well as…”
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Dealuminated Beta zeolite as effective bifunctional catalyst for direct transformation of glucose to 5-hydroxymethylfurfural by Otomo, Ryoichi, Yokoi, Toshiyuki, Kondo, Junko N., Tatsumi, Takashi

“…Dealuminated Beta zeolites, which have two types of acid sites, are effective catalysts in the transformation of glucose to 5-hydroxymethylfurfural (HMF)…”
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Effect of desilication of H-ZSM-5 by alkali treatment on catalytic performance in hexane cracking by Mochizuki, Hiroshi, Yokoi, Toshiyuki, Imai, Hiroyuki, Namba, Seitaro, Kondo, Junko N., Tatsumi, Takashi

“…[Display omitted] ► The enlargement of the external surface area of ZSM-5 suppressed the pore blocking by coke formation. ► Lewis acid sites are generated by…”
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Heterogeneous Ni Catalyst for Direct Synthesis of Primary Amines from Alcohols and Ammonia by Shimizu, Ken-ichi, Kon, Kenichi, Onodera, Wataru, Yamazaki, Hiroshi, Kondo, Junko N

“…This paper reports the synthesis of primary amines from alcohols and NH3 by an Al2O3-supported Ni nanoparticle catalyst as the first example of heterogeneous…”
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Probing the basicity of lattice oxygen on H-form zeolites using CO2 by Osuga, Ryota, Yokoi, Toshiyuki, Kondo, Junko N.

“…[Display omitted] •Acid–base pair sites exist in zeolite frameworks.•CO2 can be a probe molecule for characterization of the basicity of lattice oxygen on…”
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Control of Al Distribution in the CHA-Type Aluminosilicate Zeolites and Its Impact on the Hydrothermal Stability and Catalytic Properties by Nishitoba, Toshiki, Yoshida, Naohiro, Kondo, Junko N, Yokoi, Toshiyuki

“…The CHA-type aluminosilicate zeolites were synthesized in the presence of the N,N,N-trimethyl-1-adamantammonium cation from different starting materials,…”
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Catalytic dehydration of ethanol-to-ethylene over Rho zeolite under mild reaction conditions by Masih, Dilshad, Rohani, Sohrab, Kondo, Junko N., Tatsumi, Takashi

“…A small-pore zeolite, Rho having 8-membered ring opening and 3-dimensional (3-D) channels is synthesized via a greener process, without the use of a…”
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Facile control of crystallite size of ZSM-5 catalyst for cracking of hexane by Mochizuki, Hiroshi, Yokoi, Toshiyuki, Imai, Hiroyuki, Watanabe, Ryota, Namba, Seitaro, Kondo, Junko N., Tatsumi, Takashi

“…Nano-sized H-ZSM-5 ( ca. ∼65 nm) was synthesized by mixing the mother gel under mild conditions before crystallization. A facile control of the crystallite…”
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Catalytic cracking of n-hexane for producing propylene on MCM-22 zeolites by Wang, Yong, Yokoi, Toshiyuki, Namba, Seitaro, Kondo, Junko N., Tatsumi, Takashi

“…•The catalytic performance of MCM-22 zeolites in n-hexane cracking has been investigated at high n-hexane conversions.•The relationship between the catalytic…”
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Acid-Catalyzed Reactions on Flexible Polycyclic Aromatic Carbon in Amorphous Carbon by Okamura, Mai, Takagaki, Atsushi, Toda, Masakazu, Kondo, Junko N, Domen, Kazunari, Tatsumi, Takashi, Hara, Michikazu, Hayashi, Shigenobu

“…Carbonization of d-glucose at 573−723 K followed by sulfonation produces a functionalized amorphous carbon material with acid catalytic activity as a…”
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Synthesis of Crystallized Mesoporous Tantalum Oxide and Its Photocatalytic Activity for Overall Water Splitting under Ultraviolet Light Irradiation by Noda, Yu, Lee, Byongjin, Domen, Kazunari, Kondo, Junko N

“…The well-ordered two-dimensional hexagonal (2D-hex) structure of mesoporous Ta2O5 was maintained after crystallization with the aid of SiO2 reinforcement,…”
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Hydroconversion of methyl laurate over beta-zeolite-supported Ni–Mo catalysts: Effect of acid and base treatments of beta zeolite by Imai, Hiroyuki, Abe, Miku, Terasaka, Kazusa, Yamazaki, Hiroshi, Osuga, Ryota, Kondo, Junko N., Yokoi, Toshiyuki

“…Beta-zeolite-supported Ni–Mo catalysts, NiMo/HBeta, were developed and applied to the hydroconversion of methyl laurate under a hydrogen pressure of 0.4 MPa…”
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Highly thermostable high molecular-weight low k PIM polymers based on 5,5′,6,6′-tetrahydroxy-3,3,3′,3′-Tetramethylspirobisindane, decafluorobiphenyl, and bisphenols by Konno, Yu, Osuga, Ryota, Kondo, Junko N., Ye, Rongbin, Tsukamoto, Tadashi, Oishi, Yoshiyuki, Shibasaki, Yuji

“…High-molecular-weight (number average molecular weight Mn = 11–81 kDa) polymers with intrinsic microporosity (PIM) were prepared by the solution…”
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Highly Active Mesoporous Nb-W Oxide Solid-Acid Catalyst by Tagusagawa, Caio, Takagaki, Atsushi, Iguchi, Ai, Takanabe, Kazuhiro, Kondo, Junko N, Ebitani, Kohki, Hayashi, Shigenobu, Tatsumi, Takashi, Domen, Kazunari

“…Pore‐ing acid: Mesoporous Nb–W oxides (Nb:W=3:7) are found to be a recyclable, highly active solid acid. They surpass ion‐exchange resins (Nafion NR50 and…”
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Dehydration of xylose over sulfated tin oxide catalyst: Influences of the preparation conditions on the structural properties and catalytic performance by Suzuki, Takeshi, Yokoi, Toshiyuki, Otomo, Ryoichi, Kondo, Junko N., Tatsumi, Takashi

“…[Display omitted] ► Sulfated tin oxide is an effective catalyst for the dehydration of xylose to furfural. ► Sulfated tin oxide catalyst can be reused through…”
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Improvement of catalytic performance of MCM-22 in the cracking of n-hexane by controlling the acidic property by Wang, Yong, Yokoi, Toshiyuki, Namba, Seitaro, Kondo, Junko N., Tatsumi, Takashi

“…[Display omitted] •The MCM-22 precursor was dealuminated by a combination of nitric acid treatment and calcination.•Dealuminated MCM-22 by acid treatment of…”
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Direct Production of Propene from Methoxy Species and Dimethyl Ether over H‑ZSM‑5 by Yamazaki, Hiroshi, Shima, Hisashi, Imai, Hiroyuki, Yokoi, Toshiyuki, Tatsumi, Takashi, Kondo, Junko N

“…The mechanism of the initial C–C bond formation on methanol to olefin (MTO) and/or methanol to hydrocarbon (MTHC) reaction were not clarified. In this paper,…”
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Esterification of higher fatty acids by a novel strong solid acid by Takagaki, Atsushi, Toda, Masakazu, Okamura, Mai, Kondo, Junko N., Hayashi, Shigenobu, Domen, Kazunari, Hara, Michikazu

“…Carbon material prepared from d-glucose has been examined as a solid acid catalyst. Sulfonation of incompletely carbonized d-glucose results in amorphous…”
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Investigation of the acidic nature of MCM-68 zeolite based on the adsorption of CO and bulky probe molecules by Inagaki, Satoshi, Park, Sungsik, Yamazaki, Hiroshi, Kondo, Junko N., Kubota, Yoshihiro

“…The aluminosilicate MCM-68 has an MSE topology, a unique pore system, and solid acid characteristics. For these reasons, it has potential applications as a…”
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IR Characterization of Homogeneously Mixed Silica–Alumina Samples and Dealuminated Y Zeolites by Using Pyridine, CO, and Propene Probe Molecules by Matsunaga, Yuichi, Yamazaki, Hiroshi, Yokoi, Toshiyuki, Tatsumi, Takashi, Kondo, Junko N

“…Homogeneously mixed silica–alumina samples with various Si/Al ratios (Si/Al = 9/1, 7/3, 5/5, 3/7, and 1/9) were prepared and characterized by infrared…”
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