Search Results - "Nakagawa, Tessui"

Electronic structure of octagonal boron nitride nanotubes by Takahashi, Lauren, Nakagawa, Tessui, Takahashi, Keisuke

“…The effect of an octagonal lattice configuration on a boron nitride nanotube is explored using first principle calculations. Calculations show that the…”
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Structural Properties of (Ti, Zr)(Mn, Cr)2M0.1 (M = None, Fe, Co, Ni, and Cu) Hydrogen Storage Alloys: Composition Distribution and Occupied Site of Doped Element by Nakagawa, Tessui, Heshiki, Daichi, Higa, Hiroki, Kawakami, Junko, Kobayashi, Riki, Hanada, Nobuko, Ikeda, Kazutaka, Otomo, Toshiya, Ofuchi, Hironori, Ishida, Masayoshi

“…CO2 tolerance of hydrogen storage alloys of AB2-type (C14 Laves phase) Ti0.515Zr0.485Mn1.2Cr0.8M0.1 (AB2-M, M = none, Fe, Co, Ni, and Cu) depends on dopant M…”
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Synthesis, structural characterization, and hydrogen desorption properties of Na[Al(NH2BH3)4] by Nakagawa, Yuki, Shinzato, Keita, Nakagawa, Tessui, Nakajima, Keita, Isobe, Shigehito, Goshome, Kiyotaka, Miyaoka, Hiroki, Ichikawa, Takayuki

“…Na[Al(NH2BH3)4], a mixed-metal amidoborane, was synthesized by ball-milling (solid method) and the chemical reaction in THF (solution method). Solid method has…”
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Surface-Controlled Conversion of Ammonia Borane from Boron Nitride by Nakagawa, Tessui, Uesato, Hiroki, Burrell, Anthony K., Ichikawa, Takayuki, Miyaoka, Hiroki, Davis, Benjamin L., Kojima, Yoshitsugu

“…“One-pot regeneration”, which is simple regneneration method of ammonia borane (AB) using hydrazine and liquid ammonia, enables conversion of AB from hexagonal…”
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Comparative Study of Structural Changes in NH3BH3, LiNH2BH3, and KNH2BH3 During Dehydrogenation Process by Shimoda, Keiji, Doi, Koichi, Nakagawa, Tessui, Zhang, Yu, Miyaoka, Hiroki, Ichikawa, Takayuki, Tansho, Masataka, Shimizu, Tadashi, Burrell, Anthony K, Kojima, Yoshitsugu

“…The thermal decomposition pathways of ammonia borane (AB, NH3BH3), lithium amidoborane (LiAB, LiNH2BH3), and potassium amidoborane (KAB, KNH2BH3) have been…”
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X-ray Absorption Spectroscopic Study on Valence State and Local Atomic Structure of Transition Metal Oxides Doped in MgH2 by Hanada, Nobuko, Ichikawa, Takayuki, Isobe, Shigehito, Nakagawa, Tessui, Tokoyoda, Kazuhiko, Honma, Tetsuo, Fujii, Hironobu, Kojima, Yoshitsugu

“…A valence state and a local structure of transition metals (Nb, V, and Ti) in MgH2 doped with metal oxides (Nb2O5, V2O5, and TiO2 nano) by ball milling were…”
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Delayed ammonia release of ammonia borane hydrolysis by citric acid by Shimizu, Yoshihiro, Miyagi, Aisei, Tripathi, Ankit Kumar, Nakagawa, Tessui

“…Ammonia borane (AB), with high hydrogen density and stability under ambient conditions, readily releases hydrogen via catalyzed hydrolysis. However, ammonia, a…”
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Divalent state in YbGaGe: Magnetic, thermal, transport and structural studies by MURO, Yuji, NAKAGAWA, Tessui, UMEO, Kazunori, ITOH, Masakazu, SUZUKI, Takashi, TAKABATAKE, Toshiro

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Hydrogen carrier by ammonia borane-ammonia system with low-vapor pressure by Guo, Fangqin, Wang, Yufeng, Takamine, Shuji, Kishimoto, Ko, Ichikawa, Tomoyuki, Miyaoka, Hiroki, Shimizu, Yoshihiro, Nakagawa, Tessui, Ichikawa, Takayuki

“…Ammonia (NH3) absorption of ammonia borane (AB) was evaluated as potential hydrogen and/or NH3 storage system for hydrogen transportation in this work. The…”
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Regeneration of Ammonia Borane Spent Fuel by Direct Reaction with Hydrazine and Liquid Ammonia by Sutton, Andrew D., Burrell, Anthony K., Dixon, David A., Garner, Edward B., Gordon, John C., Nakagawa, Tessui, Ott, Kevin C., Robinson, J. Pierce, Vasiliu, Monica

“…Ammonia borane (H₃N-BH₃, AB) is a lightweight material containing a high density of hydrogen (H₂) that can be readily liberated for use in fuel cell—powered…”
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Thermal analysis on the Li–Mg–B–H systems by Nakagawa, Tessui, Ichikawa, Takayuki, Hanada, Nobuko, Kojima, Yoshitsugu, Fujii, Hironobu

“…Thermal analyses of the mixture of MgH 2 and LiBH 4 doped with TiCl 3, and each element MgH 2 or LiBH 4 doped with TiCl 3 were performed under an inert gas…”
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Structural Properties of (Ti, Zr)(Mn, Cr)2M0.1 (M = None, Fe, Co, Ni, and Cu) Hydrogen Storage Alloys: Composition Distribution and Occupied Site of Doped Element by Nakagawa, Tessui, Heshiki, Daichi, Higa, Hiroki, Kawakami, Junko, Kobayashi, Riki, Hanada, Nobuko, Ikeda, Kazutaka, Otomo, Toshiya, Ofuchi, Hironori, Ishida, Masayoshi

“…CO2 tolerance of hydrogen storage alloys of AB2-type (C14 Laves phase) Ti0.515Zr0.485Mn1.2Cr0.8M0.1 (AB2-M, M = none, Fe, Co, Ni, and Cu) depends on dopant M…”
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Recyclable Dehydrogenation/Regeneration of Ammonia Borane Nanoconfined in Amino-Functionalized ZIF‑8 with 3‑Amino-1,2,4-triazole by Li, Guan-Lin, Kumar Tripathi, Ankit, Chan, Hao, Chen, Sung-Tzu, Chang, Jui-Ting, Nakagawa, Tessui, Wang, Cheng-Yu

“…Ammonia borane (AB, NH3BH3) is considered a promising hydrogen storage material due to its high hydrogen capacity of 19.6 wt %. However, AB thermolysis for…”
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Improved Hydrogen Release from Ammonia–Borane with ZIF-8 by Zhong, Rui-Qin, Zou, Ru-Qiang, Nakagawa, Tessui, Janicke, Michael, Semelsberger, Troy A, Burrell, Anthony K, Del Sesto, Rico E

“…The promotion for hydrogen release from ammonia–borane (AB) was observed in the presence of ZIF-8. Even at concentrations of ZIF-8 as low as 0.25 mol %, a…”
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Effect of CO2 on hydrogen absorption in Ti-Zr-Mn-Cr based AB2 type alloys by Hanada, Nobuko, Asada, Hirotaka, Nakagawa, Tessui, Higa, Hiroki, Ishida, Masayoshi, Heshiki, Daichi, Toki, Tomohiro, Saita, Itoko, Asano, Kohta, Nakamura, Yumiko, Fujisawa, Akitoshi, Miura, Shinichi

“…The effect of CO2 on hydrogen absorption has been investigated for AB2 type alloys of Ti0.515Zr0.485Mn1.2Cr0.8 (Ti-Zr-Mn-Cr) and Ti0.515Zr0.485Mn1.2Cr0.8M0.1…”
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Dependence of constituent elements of AB5 type metal hydrides on hydrogenation degradation by CO2 poisoning by Hanada, Nobuko, Nakagawa, Tessui, Asada, Hirotaka, Ishida, Masayoshi, Takahashi, Keisuke, Isobe, Shigehito, Saita, Itoko, Asano, Kohta, Nakamura, Yumiko, Fujisawa, Akitoshi, Miura, Shinichi

“…LaNi5-based AB5 type alloy has high tolerance to CO2 poisoning for hydrogen purification and storage from 20 to 25% CO2 mixed gas. To elucidate the CO2…”
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Dependence of constituent elements of AB sub(5) type metal hydrides on hydrogenation degradation by CO sub(2) poisoning by Hanada, Nobuko, Nakagawa, Tessui, Asada, Hirotaka, Ishida, Masayoshi, Takahashi, Keisuke, Isobe, Shigehito, Saita, Itoko, Asano, Kohta, Nakamura, Yumiko, Fujisawa, Akitoshi, Miura, Shinichi

“…LaNis-based AB sub(5) type alloy has high tolerance to CO sub(2) poisoning for hydrogen purification and storage from 20 to 25% CO sub(2) mixed gas. To…”
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Mechanism of Hydrogenation Reaction in the Li−Mg−N−H System by Leng, Haiyan, Ichikawa, Takayuki, Hino, Satoshi, Nakagawa, Tessui, Fujii

“…The Li−Mg−N−H system composed of 3Mg(NH2)2 and 8LiH reversibly desorbs/absorbs ∼7 wt % of H2 at 120−200 °C and transforms into 4Li2NH and Mg3N2 after…”
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Microstructure and hydrogen desorption characteristics of hydrogenated ScH2–MBn (M = Mg and Ca) systems synthesized by mechanical milling by Nakagawa, Tessui, Ichikawa, Takayuki, Shimoda, Keiji, Tsubota, Masami, Miyaoka, Hiroki, Isobe, Shigehito, Honma, Tetsuo, Michimura, Shinji, Iga, Fumitoshi, Ohnuki, Somei, Kojima, Yoshitsugu

“…The mixtures of scandium hydride ScH2 and metal boride MBn, which is MgB2 or CaB6, were hydrogenated by mechanical milling under hydrogen pressure at room…”
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Microstructure and hydrogen desorption characteristics of hydrogenated ScH2aMBn (MANB=ANBMg and Ca) systems synthesized by mechanical milling by Nakagawa, Tessui, Ichikawa, Takayuki, Shimoda, Keiji, Tsubota, Masami, Miyaoka, Hiroki, Isobe, Shigehito, Honma, Tetsuo, Michimura, Shinji, Iga, Fumitoshi, Ohnuki, Somei, Kojima, Yoshitsugu

“…The mixtures of scandium hydride ScH2 and metal boride MBn, which is MgB2 or CaB6, were hydrogenated by mechanical milling under hydrogen pressure at room…”
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