Výsledky vyhledávání - "Yohei TAKASHIMA"

Akademický článek

Direct Formation of ZIF-8 Crystal Thin Films on the Surface of a Zinc Ion-Doped Polymer Substrate

Autor: Takaaki Tsuruoka, Kaito Araki, Kouga Kawauchi, Yohei Takashima, Kensuke Akamatsu

Publikováno v: Inorganics, Vol 12, Iss 1, p 21 (2024)

Thin films of metal–organic frameworks (MOFs) on polymer substrates and MOF/polymer mixed-matrix membranes play crucial roles in advancing the field of gas separation membranes. In this paper, we present a novel method for the direct formation of c

Externí odkaz: https://doaj.org/article/fad6200e1edd4971b6d2ad079cddf63b

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Akademický článek

Structure and Thermoelectric Characterization of p-Type SnTe Nanobulk Material Synthesized by Charge Compensation Chemical Reaction

Autor: Ryosuke Fujiwara, Yuta Ikeda, Takuto Kawaguchi, Yohei Takashima, Takaaki Tsuruoka, Kensuke Akamatsu

Publikováno v: Energies, Vol 17, Iss 1, p 190 (2023)

SnTe is the most widely studied p-type thermoelectric (TE) alternative to PbTe. In this study, we prepared a nanostructured SnTe bulk material via spark plasma sintering from a precursor synthesized by a chemical precipitation process without using o

Externí odkaz: https://doaj.org/article/f4265965807d4305a83664836df3eba3

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Akademický článek

Development of a low-NOx hydrogen burner using high pressure injection nozzles

Autor: Yohei TAKASHIMA, Toshikazu TSUMURA, Kazuhiro ISHII, Yutaka KABUKI, Tomiaki KOZUMA, Yuzo TAGUCHI

Publikováno v: Mechanical Engineering Journal, Vol 9, Iss 4, Pp 22-00005-22-00005 (2022)

To achieve the global goal of decarbonization, use of hydrogen in place of fossil fuels is expected to increase worldwide. In this study, to establish a hydrogen combustion technology of boilers for a safe, low NOx and low cost, a combustion test of

Externí odkaz: https://doaj.org/article/cbbf30b2dcec40a987b67fa30ef8298c

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Akademický článek

Chemical synthesis of single nanometer-sized Bi2−xSbxTe3.0 nanocrystals via direct precipitation process

Autor: Ryosuke Fujiwara, Yohei Takashima, Takaaki Tsuruoka, Muneyuki Naito, Junya Murai, Kensuke Akamatsu

Publikováno v: Results in Chemistry, Vol 4, Iss , Pp 100485- (2022)

The synthesis of high-purity nanocrystals as precursors is important to fabricate nanostructured thermolectronics with high thermoelectric performance. In this study, single-phase Bi2−xSbxTe3.0 (x = 1.5, 1.6, and 1.7) nanocrystals without the signi

Externí odkaz: https://doaj.org/article/f4b18312c2a84bf5af7847b0f1c46b87

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Cooperative catalysis in a metal–organic framework via post-synthetic immobilisation

Autor: Yohei Takashima, Yuya Suwaki, Takaaki Tsuruoka, Kensuke Akamatsu

Publikováno v: Dalton Transactions. 51:9229-9232

A Co-salen complex and a MOF were successfully hybridized by post-synthetic immobilization for a cooperative catalytic system.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bdd44f057ebbbd286544e9b9d6d744f2
https://doi.org/10.1039/d2dt01544g

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Supercapacitor electrode with high charge density based on boron-doped porous carbon derived from covalent organic frameworks

Autor: Daisuke Tanaka, Koji Yoshikawa, Vlad Stolojan, S. Ravi P. Silva, Shigeyuki Umezawa, Yasuhiko Hayashi, Takashi Douura, Mika Yoneda, Yohei Takashima, Kazuma Gotoh

Publikováno v: Carbon. 184:418-425

We developed a facile and unique process for preparing boron-doped porous carbon by direct carbonization of a boron-based covalent organic framework (COF-5). Boron oxides, which are formed during the carbonization of COF-5, were readily removed throu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1b56dc198ae1d09fdc504837e252d73b
https://doi.org/10.1016/j.carbon.2021.08.022

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Precisely Controlled Reproducible Synthesis of Palladium Nanoparticles inside Metal-Organic Frameworks with H2 Gas as Reductant: Effects of Framework Crystallinity and H2 Gas Pressure

Autor: Takaaki Tsuruoka, Yohei Takashima, Yasushi Sato, Kensuke Akamatsu, Neo Kubo

Publikováno v: Chemistry Letters. 50:244-247

Herein, we succeeded in reproducibly synthesizing palladium nanoparticles with narrow size distribution inside metal–organic frameworks (MOFs) by using pressured H2 gas as a reductant. In addition,...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4af888511a6d8a2d37a34448599af8ae
https://doi.org/10.1246/cl.200683

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