Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Ikumi Toda"'
Publikováno v:
Journal of Materials Research and Technology, Vol 12, Iss , Pp 1203-1211 (2021)
Nanoporous carbon (NPC) with high hydrogen storage capacity was fabricated from rice husk. The rice husk was activated using KOH, and the cooling step during the KOH activation process was varied. The specific surface areas, pore size distributions,
Externí odkaz:
https://doaj.org/article/e734722bab194f17b53506ad751902de
Publikováno v:
Journal of Materials Research and Technology, Vol 12, Iss, Pp 1203-1211 (2021)
Nanoporous carbon (NPC) with high hydrogen storage capacity was fabricated from rice husk. The rice husk was activated using KOH, and the cooling step during the KOH activation process was varied. The specific surface areas, pore size distributions,
Autor:
Ikumi Toda, Yoshinori Tsuda, Shigeo Ohshio, Kansei Li, Jie Zhu, Keiji Komatsu, Yoshikuni Ishibashi, Hidetoshi Saitoh
Publikováno v:
Transactions of the Materials Research Society of Japan. 44:157-163
Autor:
Hidetoshi Saitoh, Hiroe Toda, Ikumi Toda, Keiji Komatsu, Hiroki Akasaka, Takuhiro Watanabe, Shigeo Ohshio
Publikováno v:
Journal of Porous Materials. 25:1765-1770
We report on the pore structure and hydrogen storage properties of nanoporous carbon (NPC) prepared by KOH activation of rice husk ash. The specific surface area of the NPC increased from 220 to 2770 m2/g with an increase in KOH/rice husk ash weight
Autor:
Rui Okuda, Heng Li, Hidetoshi Saitoh, Jie Zhu, Shigeo Ohshio, Keiji Komatsu, Ikumi Toda, Yoshinori Tuda, Yuto Kudo, Takumi Yamada, Yoshikuni Ishibashi
Publikováno v:
Measurement. 173:108627
The accurate estimation of true density is a fundamental problem for nanoporous carbon (NPC) materials because of helium adsorption. In this study, we developed a method for measuring the true density of NPC fabricated from rice husks based on a gas
Autor:
Tomoyuki Shirai, Shigeo Ohshio, Ayumu Toyama, Hiroyuki Muramatsu, Atsushi Nakamura, Hidetoshi Saitoh, Keiji Komatsu, Ikumi Toda, Tetsuo Sekiya
Publikováno v:
Journal of Thermal Spray Technology. 26:195-202
In this study, yttrium oxide (Y2O3) films were synthesized from a metal-ethylenediaminetetraacetic (metal-EDTA) complex by employing a H2-O2 combustion flame. A rotation apparatus and various cooling agents (compressed air, liquid nitrogen, and atomi
Autor:
Ayumu Toyama, Keiji Komatsu, Atsushi Nakamura, Hiroyuki Muramatsu, Tomoyuki Shirai, Ikumi Toda, Tetsuo Sekiya, Hidetoshi Saitoh, Shigeo Ohshio
Publikováno v:
MATERIALS TRANSACTIONS. 57:70-74
Autor:
Hiroyuki Muramatsu, Shigeo Ohshio, Ikumi Toda, Yuto Kudo, Hidetoshi Saitoh, Keiji Komatsu, Yoshikuni Ishibashi, Takumi Yamada
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 115:113661
The structural behaviours of nanoporous carbon (NPC) fabricated from rice husk were investigated. NPC was fabricated by KOH activation from rice husk ash. Water, iodine (I2), and styrene solutions were selected as adsorbed materials for the NPC, whic
Autor:
Mauricio Terrones, Takumi Yamada, Morinobu Endo, Hiroyuki Muramatsu, Kap Seung Yang, Ikumi Toda, Yoong Ahm Kim, Hidetoshi Saitoh, Rodolfo Cruz-Silva, Takuya Hayashi
Publikováno v:
Small. 10:2766-2770
A new synthetic method is demonstrated for transforming rice husks into bulk amounts of graphene through its calcination and chemical activation. The bulk sample consists of crystalline nano-sized graphene and corrugated individual graphene sheets; t
Autor:
Hidetoshi Saitoh, Hiroyuki Muramatsu, Shigeo Ohshio, Ikumi Toda, Atsushi Nakamura, Keiji Komatsu
Publikováno v:
Journal of Solid State Chemistry. 204:186-189
Chemical stability of 6-coodinated SrO is a fundamental problem when this is used for various applications. In this study, optical and chemical stabilities of 8-coordinated SrO:Eu{sup 2+} phosphor were investigated. SrO:Eu{sup 2+} phosphor was synthe