Search Results - "Takami, Seiichi"

Facet-Controlled Synthesis of CeO2 Nanoparticles for High-Performance CeO2 Nanoparticle/SnO2 Nanosheet Hybrid Gas Sensors by Ema, Takuma, Choi, Pil Gyu, Takami, Seiichi, Masuda, Yoshitake

“…CeO2 nanocubes with metastable {100} facets and CeO2 nanooctahedrons with the most stable {111} facets are herein fabricated by controlling the morphology and…”
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Atomic‐Scale Valence State Distribution inside Ultrafine CeO2 Nanocubes and Its Size Dependence by Hao, Xiaodong, Yoko, Akira, Chen, Chunlin, Inoue, Kazutoshi, Saito, Mitsuhiro, Seong, Gimyeong, Takami, Seiichi, Adschiri, Tadafumi, Ikuhara, Yuichi

“…Atomic‐scale analysis of the cation valence state distribution will help to understand intrinsic features of oxygen vacancies (VO) inside metal oxide…”
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Atomistic origin of high-concentration Ce3+ in {100}-faceted Cr-substituted CeO2 nanocrystals by Hao, Xiaodong, Yoko, Akira, Inoue, Kazutoshi, Xu, Yang, Saito, Mitsuhiro, Chen, Chunlin, Seong, Gimyeong, Tomai, Takaaki, Takami, Seiichi, Shluger, Alexander L., Xu, Bingshe, Adschiri, Tadafumi, Ikuhara, Yuichi

“…Improving the potential of promising CeO2-based nanocatalysts in practical applications requires an atomic-scale analysis of the effects of active dopants on…”
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Growth Mechanism and Surface Chemical Characteristics of Dicarboxylic Acid-Modified CeO2 Nanocrystals Produced in Supercritical Water: Tailor-Made Water-Soluble CeO2 Nanocrystals by Taguchi, Minori, Takami, Seiichi, Naka, Takashi, Adschiri, Tadafumi

“…Tailor-made surface-modified metal oxide nanocrystals enable various applications including medical, electronic, magnetic, and photovoltaic devices. Both the…”
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Catalytic Cracking Reaction of Heavy Oil in the Presence of Cerium Oxide Nanoparticles in Supercritical Water by Dejhosseini, Mehdi, Aida, Tsutomu, Watanabe, Masaru, Takami, Seiichi, Hojo, Daisuke, Aoki, Nobuaki, Arita, Toshihiko, Kishita, Atsushi, Adschiri, Tadafumi

“…Catalytic cracking of Canadian oil sand bitumen in supercritical water was performed to clarify the effect of CeO2 nanoparticles. The cracking was performed at…”
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Supercritical Hydrothermal Reactions for Material Synthesis by Adschiri, Tadafumi, Takami, Seiichi, Umetsu, Mitsuo, Ohara, Satoshi, Naka, Takashi, Minami, Kimitaka, Hojo, Daisuke, Togashi, Takanari, Arita, Toshihiko, Taguchi, Minori, Itoh, Masahiro, Aoki, Nobuaki, Seong, Gimyeong, Tomai, Takaaki, Yoko, Akira

“…Since the early 1990s, Adschiri and his colleagues have performed research on the use of supercritical water in diverse applications, including heavy oil…”
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Selective chemical recovery from biomass under hydrothermal conditions using metal oxide nanocatalyst by Seong, Gimyeong, Yoko, Akira, Inoue, Ryohei, Takami, Seiichi, Adschiri, Tadafumi

“…[Display omitted] •Fractionation of cellulose and lignin was studied.•Hydrolysis rate of cellulose was accelerated by cellulose dissolution.•Retro-aldol…”
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Direct Imaging for Single Molecular Chain of Surfactant on CeO2 Nanocrystals by Hao, Xiaodong, Chen, Chunlin, Saito, Mitsuhiro, Yin, Deqiang, Inoue, Kazutoshi, Takami, Seiichi, Adschiri, Tadafumi, Ikuhara, Yuichi

“…Organic surfactant controls the synthesis of nanocrystals (NCs) with uniform size and morphology by attaching on the surface of NCs and further facilitates…”
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Direct Observation Techniques Using Scanning Electron Microscope for Hydrothermally Synthesized Nanocrystals and Nanoclusters by Asano, Natsuko, Lu, Jinfeng, Asahina, Shunsuke, Takami, Seiichi

“…Metal oxide nanocrystals have garnered significant attention owing to their unique properties, including luminescence, ferroelectricity, and catalytic…”
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Supercritical hydrothermal synthesis of highly crystalline lanthanum zirconate nanoparticles by Hojo, Daisuke, Ohara, Hiroaki, Aida, Tsutomu, Seong, Gimyeong, Aoki, Nobuaki, Takami, Seiichi, Adschiri, Tadafumi

“…[Display omitted] •La2Zr2O7 nanoparticles were synthesised in supercritical water at 450 °C and pH 11.•Highly crystalline pyrochlore La2Zr2O7 was obtained even…”
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Beneficial use of CeO2 nanocatalyst for black liquor conversion under sub and supercritical conditions by Boucard, Hélène, Watanabe, Masaru, Takami, Seiichi, Weiss-Hortala, Elsa, Barna, Radu, Adschiri, Tadafumi

“…•Black liquor is treated with CeO2.•Subcritical and supercritical conditions are compared.•Solid, gaseous and liquid phases are considered.•CeO2 action is…”
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Flow visualization of heavy oil in a packed bed using real-time neutron radiography by Shoji, Eita, Yamagiwa, Koshiro, Kubo, Masaki, Tsukada, Takao, Takami, Seiichi, Sugimoto, Katsumi, Ito, Daisuke, Saito, Yasushi, Teratani, Shogo

“…•Heavy oil flows in a packed bed simulating a trickle bed reactor were visualized using real-time neutron radiography.•Effects of temperature, N2 gas flow rate…”
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Liquefied dimethyl ether as alternative extraction solvent for high γ-oryzanol rice bran oil: Systematic HSP theory and experimental evaluation by Daisuk, Phannipha, Takami, Seiichi, Honda, Masaki, Goto, Motonobu, Usaku, Chonlatep, Shotipruk, Artiwan

“…This study aimed to systematically find an alternative solvent to replace hexane for the extraction of bio-oil with high γ-oryzanol content from rice bran…”
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Titanium peroxide nanoparticles enhanced cytotoxic effects of X-ray irradiation against pancreatic cancer model through reactive oxygen species generation in vitro and in vivo by Nakayama, Masao, Sasaki, Ryohei, Ogino, Chiaki, Tanaka, Tsutomu, Morita, Kenta, Umetsu, Mitsuo, Ohara, Satoshi, Tan, Zhenquan, Nishimura, Yuya, Akasaka, Hiroaki, Sato, Kazuyoshi, Numako, Chiya, Takami, Seiichi, Kondo, Akihiko

“…Biological applications of nanoparticles are rapidly increasing, which introduces new possibilities to improve the efficacy of radiotherapy. Here, we…”
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Numerical simulations of dispersion and aggregation behavior of surface-modified nanoparticles under shear flow by Usune, Shin, Kubo, Masaki, Tsukada, Takao, Koike, Osamu, Tatsumi, Rei, Fujita, Masahiro, Takami, Seiichi, Adschiri, Tadafumi

“…A nanofluid is a colloidal suspension of nanoparticles, and its properties depend on the structures of nanoparticles in a base fluid. In this study, numerical…”
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Hydrothermal synthesis of surface-modified iron oxide nanoparticles by Takami, Seiichi, Sato, Teruyuki, Mousavand, Tahereh, Ohara, Satoshi, Umetsu, Mitsuo, Adschiri, Tadafumi

“…We synthesized surface-modified iron oxide nanoparticles in aqueous phase by heating an aqueous solution of iron sulfate (FeSO 4) at 473 K with a small amount…”
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Continuous synthesis of fine MgFe2O4 nanoparticles by supercritical hydrothermal reaction by Sasaki, Takafumi, Ohara, Satoshi, Naka, Takashi, Vejpravova, Jana, Sechovsky, Vladimir, Umetsu, Mitsuo, Takami, Seiichi, Jeyadevan, Balachandran, Adschiri, Tadafumi

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Curcumin-Loaded Liposome Preparation in Ultrasound Environment under Pressurized Carbon Dioxide by Wahyudiono, He, Jiayang, Hu, Xin, Machmudah, Siti, Yasuda, Keiji, Takami, Seiichi, Kanda, Hideki, Goto, Motonobu

“…Curcumin-loaded liposomes were prepared using a supercritical carbon dioxide (SCCO2)−ultrasound environment system. The experiments were performed at…”
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Relationship between size distribution of synthesized nanoparticles and flow and thermal fields in a flow-type reactor for supercritical hydrothermal synthesis by Sugioka, Ken-ichi, Ozawa, Kyohei, Kubo, Masaki, Tsukada, Takao, Takami, Seiichi, Adschiri, Tadafumi, Sugimoto, Katsumi, Takenaka, Nobuyuki, Saito, Yasushi

“…•Buoyancy convection increases the CV and average size of synthesized nanoparticles.•Particle size distribution becomes shaper as forced convection becomes…”
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Neutron radiography and numerical simulation of mixing behavior in a reactor for supercritical hydrothermal synthesis by Sugioka, Ken-ichi, Ozawa, Kyohei, Tsukada, Takao, Takami, Seiichi, Adschiri, Tadafumi, Sugimoto, Katsumi, Takenaka, Nobuyuki, Saito, Yasushi

“…We have visualized the distributions of temperature and water density in a tubular flow reactor for supercritical hydrothermal synthesis of nanoparticles by…”
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