Výsledky vyhledávání - "Hiroyuki Kazama"

Crystallization of colourless hexanitratoneptunate(iv) with anhydrous H+ countercations trapped in a hydrogen bonded polymer with diamide linkers

Autor: Moe Matsuoka, Juliane März, Takanori Mashita, Satoru Tsushima, Koichiro Takao, Hiroyuki Kazama

Publikováno v: RSC Advances. 10:6082-6087

Colourless crystalline compounds of centrosymmetric [Np(NO3)6]2− were yielded from 3 M HNO3 aq in the presence of double-headed 2-pyrrolidone derivatives (L). In the obtained crystal structures, H+ was also involved as a countercation to compensate

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0f033d4c27adcd9e9c2c756dd295ac9
https://doi.org/10.1039/c9ra10090c

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Crystal Structure of Regularly Th-Symmetric [U(NO3)6]2− Salts with Hydrogen Bond Polymers of Diamide Building Blocks

Autor: Hiroyuki Kazama, Satoru Tsushima, Yasuhisa Ikeda, Koichiro Takao

Publikováno v: Angewandte Chemie International Edition. 58(No. 1):240-243

Hexanitratouranate(IV), [U(NO3 )6 ]2- , has been crystallized with anhydrous H+ -involving hydrogen bond polymers connected by selected diamide building blocks. Thanks to the significant moderation of electrostatic interactions between the anions and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9da614c0ff92f86247c2c4983e76052
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100813166

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Molecular Design of Double-Headed 2-Pyrrolidone Derivatives for Separation/Co-precipitation of UO22+ from/with Tetravalent Actinides towards Nuclear Fuel Recycling

Autor: Koichiro Takao, Hiroyuki Kazama

Publikováno v: Chemistry Letters.

Two kinds of novel double-headed 2-pyrrolidone derivatives (DHNRPs) were designed for efficient recovery of UO22+ from HNO3 (aq) and its separation from tetravalent metal ions (M4+). The DHNRPs bea...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::309a89d3b9e468a18c07e48904255375
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100861862

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Essential Role of Heterocyclic Structure of N-Alkylated 2-Pyrrolidone Derivatives for Recycling Uranium from Spent Nuclear Fuels

Autor: Hiroyuki Kazama, Satoru Tsushima, Koichiro Takao, Tsubasa Inoue

Publikováno v: Bulletin of the Chemical Society of Japan.

In a simple and versatile reprocessing method for recycling U and Pu from spent nuclear fuels, cyclic amides like N-alkylated 2-pyrrolidone derivatives (NRPs) are exclusively employed. However, the...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ff274eae622b7f5a821e1f288b8820c
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100822257

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Significant Acceleration of PGMs Extraction with UCST-Type Thermomorphic Ionic Liquid at Elevated Temperature

Autor: Takahiro Mori, Soma Kono, Hiroyuki Kazama, Tsuyoshi Arai, Koichiro Takao

Publikováno v: ACS Sustainable Chemistry and Engineering. 6(No. 2):1555-1559

Dependency of extraction behavior of inert platinum group metals (PGMs) like Ru(III) and Rh(III) on temperature has been investigated in a biphasic system consisting of HNO3(aq) and betainium bis(trifluoromethylsulfonyl)amide ([Hbet][Tf2N]) ionic liq

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7cf4305e3177037071591f3f53140baa
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100781176

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New concept for molecular design of N-substituted 2-pyrrolidone derivatives towards advanced reprocessing method for spent ThO2 fuels

Autor: Hiroyuki Kazama, Yasuhisa Ikeda, Koichiro Takao

Publikováno v: Energy Procedia. 131:157-162

A thorium oxide nuclear fuel cycle should be one of the promising options in the current U-Pu cycle conducted in most countries utilizing the nuclear energy. To make this fuel cycle more reasonable, it is still necessary to innovate the reprocessing

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::45d9ca417a9c57e44d1521c2bdeeec71
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100813168

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