Výsledky vyhledávání - "Shigeharu, Ito"

Activating Nitrogen‐doped Graphene Oxygen Reduction Electrocatalysts in Acidic Electrolytes using Hydrophobic Cavities and Proton‐conductive Particles

Autor: Santosh K. Singh, Kotaro Takeyasu, Kaito Homma, Shigeharu Ito, Takashi Morinaga, Yuto Endo, Moeko Furukawa, Toshiyuki Mori, Hirohito Ogasawara, Junji Nakamura

Publikováno v: Angewandte Chemie International Edition. 61

Although pyridinic-nitrogen (pyri-N) doped graphene is highly active for the oxygen reduction reaction (ORR) of fuel cells in alkaline media, the activity critically decreases under acidic conditions. We report on how to prevent the deactivation base

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e45d9403efea43d0fdef833a9a5ef63
https://doi.org/10.1002/anie.202212506

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Active Pt nano-coated layer with Pt-O-Ce bond on CeOx nanowire cathode formed by electron beam irradiation

Autor: Toshiyuki, Mori, Tong, Ke, Shunya, Yamamoto, Chauhan, Shipra, Tomohiro, Kobayashi, Noriko, Isaka, Auchterlonie, Graeme, Wepf, Roger, Akira, Suzuki, Shigeharu, Ito, Ye, Fei

Publikováno v: ACS Omega.

本研究では、電子線照射を用いた放射線還元法によりCeOx ナノワイヤーにPtをナノコートした電極触媒を形成し、この電極触媒を用いた電極接合体（MEA）の動作において高い耐久性が得ら

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::0ab313cf047723dc8989d4ec6fd609ca
https://repo.qst.go.jp/records/86595

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Surface layer of Pt‐O‐Ce bonds on CeO x nanowire with high ORR activity converted by proton beam irradiation

Autor: Graeme Auchterlonie, Roger Wepf, Shigeharu Ito, Shipra Chauhan, Tomohiro Kobayashi, Toshiyuki Mori, Fei Ye, Shunya Yamamoto, Shigenori Ueda

Publikováno v: Journal of the American Ceramic Society. 104:1945-1952

To develop the state-of-the-art polymer membrane fuel cells. Both maximization of oxygen reduction reaction (ORR) activity on Pt cathode and minimization of Pt content in the cathode are required. For this challenge, the defect interface on oxide sup

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b211d6d55fbc33115f8cc6b1a46753d0
https://doi.org/10.1111/jace.17618

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Design of Active Site at Heterointerface between Brownmillerite Type Oxide Promoter and Fluorite Cubic ZrO2 in Anode of Intermediate Temperature SOFCs

Autor: Akira Suzuki, Shigeharu Ito, Hiroshi Okubo, Shunya Yamamoto, Takaya Sato, Fei Ye, Toshiyuki Mori

Publikováno v: ACS Applied Energy Materials. 2:5183-5197

New hopping site for mobile oxygen (i.e., active site) on cubic ZrO2 surface in the anode was designed along the guide of previously published first-principles simulation. To design it, the authors proposed a heterointerface between brownmillerite ty

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b5259960f4309a25a94b70263ab63404
https://doi.org/10.1021/acsaem.9b00864

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High electrical conductivity in Ba2In2O5brownmillerite based materials induced by design of a Frenkel defect structure

Autor: Pengfei Yan, Takaya Sato, Keisuke Fugane, Shigeharu Ito, John Drennan, Fei Ye, Toshiyuki Mori, Graeme Auchterlonie

Publikováno v: RSC Advances. 7:4688-4696

To improve the electrical conductivity in the Ba2In2O5 (BIO) system without a large volume change from room temperature to 1273 K, BIO materials dually doped with Zr4+ and Zn2+ samples were prepared by using a soft chemical method. Ba2(In0.7,(Zn0.5,Z

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::89327418f12608490fa71db7e519deb5
https://doi.org/10.1039/c6ra27418h

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Design of Active Sites on Nickel in the Anode of Intermediate-Temperature Solid Oxide Fuel Cells using Trace Amount of Platinum Oxides

Autor: Akira Suzuki, Andrii Rednyk, Toshiyuki Mori, Noriko Isaka, Peter Kúš, Yuta Yamamoto, Shigeharu Ito, Shunya Yamamoto, Takayoshi Tanji, Fei Ye

Publikováno v: ChemPlusChem. 83(8)

In recent years, the lowering of the operation temperature of solid oxide fuel cells (SOFCs) has attracted much attention owing to the trade-off between the best performance and the life span of SOFCs. For this challenge, new active sites on the Ni s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fbac8b20eaa055759df42c1b3ce8e58c
https://pubmed.ncbi.nlm.nih.gov/31950667

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Electrical Properties of New Brounmillerite-type Ba2In2-x(Zn, Zr)xO5 System

Autor: Shigeharu Ito, M. Watanabe, Hiroshi Yamamura, Miwa Saito

Publikováno v: Procedia Engineering. 36:68-73

In order to investigate the relationship of oxide-ion conduction between the brownmillerite-type and perovskite-type structures, the solid solution system Ba2In2-x(Zn1/2Zr1/2)xO5 was investigated. The orthorhombic phase was obtained in the range of 0

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ab1ceb58cd0e2d81634a6dbcd922b70
https://doi.org/10.1016/j.proeng.2012.03.012

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