Výsledky vyhledávání - "Takafumi Izawa"

Controllable Synthesis of Carbon-Coated SiOx Particles through a Simultaneous Reaction between the Hydrolysis–Condensation of Tetramethyl Orthosilicate and the Polymerization of 3-Aminophenol

Autor: Kazuki Kamikubo, Takafumi Izawa, Takashi Ogi, Aditya F. Arif, Hideharu Iwasaki, Kiet Le Anh Cao

Publikováno v: Langmuir. 35:13681-13692

Core-shell particles are desirable for many applications, but the precise design and control of their structure remains a great challenge. In this work, we developed a strategy to fabricate carbon-coated SiOx (SiOx@C) core-shell particles via a sol-g

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4e75d60e3607bdd561949865e951cd79
https://doi.org/10.1021/acs.langmuir.9b02599

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Improving the performance of Li-ion battery carbon anodes by in-situ immobilization of SiOx nanoparticles

Autor: Hideharu Iwasaki, Kazuki Kamikubo, Shuto Taniguchi, Aditya F. Arif, Takafumi Izawa, Takashi Ogi

Publikováno v: Materials Research Bulletin. 112:16-21

A 30% improvement of the capacity of a lithium ion battery was demonstrated by introducing a C/SiOx nanocomposite electrode having a SiOx nanoparticle loading of 15 wt.%. The nanocomposite was tailored from tetraethyl orthosilicate (TEOS) and 3-amino

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e9aba1840a3365c353e9b2de16c805d6
https://doi.org/10.1016/j.materresbull.2018.11.044

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Microwave-Assisted Synthesis of C/SiO2 Composite with Controllable Silica Nanoparticle Size

Autor: Hideharu Iwasaki, Takafumi Izawa, Aditya F. Arif, Takashi Ogi, Kazuki Kamikubo, Shuto Taniguchi

Publikováno v: ACS Omega, Vol 3, Iss 4, Pp 4063-4069 (2018)

AC/SiO composite was produced from 3-aminophenol and tetraethyl orthosilicate (TEOS) by a synthesis protocol that involved microwave irradiation. This protocol featured simultaneous 3-aminophenol polymerization and TEOS hydrolysis and condensation, w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::574f98204a5a455cb5d2c6544ea99816
http://ir.lib.hiroshima-u.ac.jp/00046763

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Selective Low-Energy Carbon Dioxide Adsorption Using Monodisperse Nitrogen-Rich Hollow Carbon Submicron Spheres

Autor: Ratna Balgis, Hideharu Iwasaki, Wendelin J. Stark, Kikuo Okuyama, Yuma Kobayashi, Takafumi Izawa, Elia M. Schneider, Takashi Ogi, Aditya F. Arif, Shuto Taniguchi, Samuel C. Hess

Publikováno v: Langmuir. 34:30-35

Monodisperse, nitrogen-doped hollow carbon spheres of submicron size were synthesized using hexamethoxymethylmelamine as both a carbon and nitrogen source in a short (1 h) microwave-assisted synthesis. After carbonization at 550 °C, porous carbon sp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f9d59f9bab7c016c747ea1570345948
https://doi.org/10.1021/acs.langmuir.7b01353

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Controllable Synthesis of Carbon-Coated SiO

Autor: Kiet Le, Anh Cao, Aditya F, Arif, Kazuki, Kamikubo, Takafumi, Izawa, Hideharu, Iwasaki, Takashi, Ogi

Publikováno v: Langmuir : the ACS journal of surfaces and colloids. 35(42)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::14fa300cb75424ddabe1d1ddb133d4d8
https://pubmed.ncbi.nlm.nih.gov/31558027

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[1]Benzothieno[3,2-b][1]benzothiophenes- and dinaphtho[2,3-b:2′,3′-f]thieno[3,2-b]thiophene-based organic semiconductors for stable, high-performance organic thin-film transistor materials

Autor: Hideaki Ebata, Kazuo Takimiya, Takafumi Izawa, Tatsuya Yamamoto

Publikováno v: Thin Solid Films. 554:13-18

π-Extended thieno[3,2-b]thiophene-containing aromatic compounds were developed as stable, high-performance organic semiconductors for organic thin-film transistor (OTFT) applications. Of them, dinaphtho[2,3-b:2′,3′-f]thieno[3,2-b]thiophene consi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::75135c1f967a344f0475e95a93cd1314
https://doi.org/10.1016/j.tsf.2013.08.026

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Synthesis, characterization, and photovoltaic applications of dithienogermole-dithienylbenzothiadiazole and -dithienylthiazolothiazole copolymers

Autor: Tomonobu Mizumo, Yousuke Ooyama, Yong-Mook Hwang, Morihara Yasushi, Yutaka Harima, Akio Fujita, Takafumi Izawa, Takashi Sugioka, Joji Ohshita

Publikováno v: Polymer. 52(18):3912-3916

New dithienogermole-based conjugated polymers were synthesized by the Stille coupling reactions of distannyldithienogermole and dibromoarene, and their photovoltaic properties were studied. These polymers possess low band gaps with broad absorptions

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::708e480c7f3663690350f76aa28ccf57
http://ir.lib.hiroshima-u.ac.jp/00034817

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Solution-Processible Organic Semiconductors Based on Selenophene-Containing Heteroarenes, 2,7-Dialkyl[1]benzoselenopheno[3,2-b][1]benzoselenophenes (Cn-BSBSs): Syntheses, Properties, Molecular Arrangements, and Field-Effect Transistor Characteristics

Autor: Eigo Miyazaki, Kazuo Takimiya, Takafumi Izawa

Publikováno v: Chemistry of Materials. 21:903-912

A series of 2,7-dialkyl[1]benzoselenopheno[3,2-b][1]benzoselenophenes (Cn-BSBSs) were synthesized as novel soluble organic semiconductors. Electrochemical and photochemical studies on Cn-BSBSs have revealed that their molecular properties are very si

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::52e1f80b929e1952394211bce4b63c03
https://doi.org/10.1021/cm8030126

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