Výsledky vyhledávání - "Takemitsu Kikuchi"

Steam Gasification of Low-Rank Coal with a Nanoscale Ca/Na Composite Catalyst Prepared by Ion Exchange

Autor: Takemitsu Kikuchi, Yuu Hanaoka, Yuuki Mochizuki, Yuji Shinohara, Naoto Tsubouchi, Yasuo Ohtsuka

Publikováno v: Energy & Fuels. 32:226-232

Ca2+ and Na+ cations were separately or consecutively ion-exchanged with an Indonesian low-rank coal using saturated aqueous solutions of Ca(OH)2 and/or soda ash at 20–40 °C without pH adjustment. This was done by adding aqueous solutions of the s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c8edf85c94924dcc601f9eb64ebacf7c
https://doi.org/10.1021/acs.energyfuels.7b02964

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Steam Gasification of Low-Rank Coals with Ion-Exchanged Sodium Catalysts Prepared Using Natural Soda Ash

Autor: Yasuo Ohtsuka, Enkhsaruul Byambajav, Takemitsu Kikuchi, Yuuki Mochizuki, Yuu Hanaoka, Naoto Tsubouchi

Publikováno v: Energy & Fuels. 31:2565-2571

Ion-exchange reactions of brown and sub-bituminous coals with natural soda ash, composed of >99% Na2CO3, have been studied at 20–40 °C without any pH-adjusting reagents, and the pyrolysis and subsequent steam gasification of the resulting Na+-exch

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7b3b31a56d13befedeb2df586ac50527
https://doi.org/10.1021/acs.energyfuels.6b02905

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An ESIPT fluorophore with a switchable intramolecular hydrogen bond for applications in solid-state fluorochromism and white light generation

Autor: Saki Tsuchiya, Tomoyuki Akutagawa, Ken Ichi Sakai, Takemitsu Kikuchi

Publikováno v: Journal of Materials Chemistry C. 4:2011-2016

A novel excited state intramolecular proton transfer (ESIPT) fluorophore of BTImP, in which benzothiazole (BT) and imidazole (Im) rings are respectively linked to the 2,6 positions of a phenol, was designed and synthesized. The switching of two intra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::da63a7152310a743a1df54ac13fdb90d
https://doi.org/10.1039/c5tc04290a

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Color Changes of a Full-Color Emissive ESIPT Fluorophore in Response to Recognition of Certain Acids and Their Conjugate Base Anions

Autor: Takemitsu Kikuchi, Ken Ichi Sakai, Saki Tsuchiya, Tomoyuki Akutagawa, Yuta Nakane, Keiichi Kawano

Publikováno v: Chemistry (Weinheim an der Bergstrasse, Germany). 24(22)

2-(1,3-Benzothiazol-2-yl)-4-methoxy-6-(1,4,5-triphenyl-1H-imidazol-2-yl)phenol (BTImP) is an excited-state intramolecular proton transfer (ESIPT) fluorophore, containing an acid-stimuli-responsive intramolecular hydrogen bond (H-bond) that can switch

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac31403232cd76441cf6412192491dc2
https://pubmed.ncbi.nlm.nih.gov/29411436

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Polymorphs and Structural Phase Transition of [Ni(dmit)2]− Crystals Induced by Flexible (trans-Cyclohexane-1,4-diammonium)(Benzo[18]crown-6)2 Supramolecule

Autor: Tomoyuki Akutagawa, Qiong Ye, Takayoshi Nakamura, Norihisa Hoshino, Takemitsu Kikuchi, Shin Ichiro Noro, Ren-Gen Xiong

Publikováno v: Crystal Growth & Design. 11:4175-4182

Structurally flexible trans-cyclohexane-1,4-diammonium (CHDA2+) forms a hydrogen-bonded sandwich-type supramolecule with benzo[18]crown-6 in (CHDA2+)(benzo[18]crown-6)2[Ni(dmit)2]2 (1) (dmit2–: 2-thioxo-1,3-dithiole-4,5-dithiolate). During the crys

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cb4b6895eab23d366d974e92ed023384
https://doi.org/10.1021/cg2007556

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Recent progress in Japan on hot gas cleanup of hydrogen chloride, hydrogen sulfide and ammonia in coal-derived fuel gas

Autor: Hiroyuki Hashimoto, Takemitsu Kikuchi, Naoto Tsubouchi, Yasuo Ohtsuka

Publikováno v: Powder Technology. 190:340-347

The present review paper highlights on the recent progress in Japan on the hot gas cleanup of HCl, H2S and NH3 in raw fuel gas for coal-based, combined cycle power generation technologies. It has been shown that NaAlO2, prepared by mixing Na2CO3 solu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3c7e63f2c66e98924244f13db4f5eb6e
https://doi.org/10.1016/j.powtec.2008.08.012

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Akademický článek

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Huge dielectric response and molecular motions in paddle-wheel [Cu(II)2(adamantylcarboxylate)4(DMF)2]⋅(DMF)2

Autor: Qiong Ye, Shin Ichiro Noro, Kiyonori Takahashi, Tomoyuki Akutagawa, Sadamu Takeda, Takemitsu Kikuchi, Takayoshi Nakamura, Norihisa Hoshino

Publikováno v: Chemistry (Weinheim an der Bergstrasse, Germany). 17(51)

The temperature-dependent dynamic properties of [Cu(II)(2)(ADCOO)(4)(DMF)(2)]⋅(DMF)(2) (1) and [Cu(II)(2)(ADCOO)(4)(AcOEt)(2)] (2) crystals were examined by X-ray crystallography, (1)H NMR spectroscopy, and measurements of the dielectric constants

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7fa94215352c8e061e0ee82de11a075b
https://pubmed.ncbi.nlm.nih.gov/22102443

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A New Technique for Accurate Measurement and Adjustment of the Phase of the Microwave Pulse in Pulsed EPR Spectroscopy

Autor: Rie Satoh, Masamoto Iwaizumi, Takemitsu Kikuchi, Seigo Yamauchi, Yasunori Ohba

Publikováno v: Journal of Magnetic Resonance, Series A. 103:282-287

A new technique for accurate measurement and adjustment of the phase of microwave pulses in the pulsed EPR experiment is presented. In this technique, the quadrature FID signals of single-line EPR and its Lissajous display are used. This method is mo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dfae01d5bdf07b1c00e0e8d289ae6b91
https://doi.org/10.1006/jmra.1993.1167

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