Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Keiko Miyabayashi"'
Autor:
Keiko Miyabayashi, Junna Kondo
Publikováno v:
Chemistry Letters; Mar2024, Vol. 53 Issue 3, p1-5, 5p
Autor:
Masaru Kato, Yoshimi Iguchi, Tianchi Li, Yuta Kato, Yu Zhuang, Kotaro Higashi, Tomoya Uruga, Takahiro Saida, Keiko Miyabayashi, Ichizo Yagi
Publikováno v:
ACS Catalysis. 12:259-264
We report the preparation, oxygen reduction reaction (ORR) electrocatalytic activity, and structural transformation of Pt–Ni nanowires (NWs) during potential cycles in the presence and absence of Pt–Ni nanoparticles (NPs). The ORR activity of NWs
Publikováno v:
Electroanalysis. 35
Autor:
Ankit Singh, Keiko Miyabayashi
Publikováno v:
RSC Advances. 10:362-366
In this work, we report a novel continuous flow synthesis method to achieve ultra-small Pt NPs (2.3 to 2.5 nm) with narrow size distribution. This method expedited the synthesis of Pt NPs without any harsh reducing agent or capping agent. Further the
Publikováno v:
Electrocatalysis. 9:486-494
Platinum nanoparticles (NPs) modified with alkylamines containing various aromatic rings (benzyl, naphtyl, anthryl, and pyrenyl) were synthesized as model cathode catalysts for fuel cells to investigate the role of aromatic surface modification agent
Autor:
Keiko Miyabayashi, Mikio Miyake
Publikováno v:
Electroanalysis. 29:898-906
Platinum nanoparticles (NPs) modified with undecafluorohexylamine (UFHA) and octylamine were synthesized as a novel model cathode catalyst for fuel cells. The modified Pt NPs were well characterized by FTIR, X-ray photoelectron spectroscopy, thermogr
Publikováno v:
Analytical chemistry. 90(10)
Organically (octyl amine, OA) surface modified electrocatalyst (OA-Pt/CB) was studied for its oxygen reduction reaction (ORR) activity via dc methods and its charge and mass transfer properties were studied via electrochemical impedance spectroscopy
Publikováno v:
Acta Materialia. 63:202-208
Platinum nanoparticles (NPs) with controllable morphologies were synthesized in aqueous solution utilizing a new type of additive and capping agent. This strategy suggests for the first time that an oxysalt can serve as a shape modifier, and can cont
Autor:
Mikio Miyake, Keiko Miyabayashi
Publikováno v:
Journal of the Japan Petroleum Institute. 56:214-220
Autor:
T. Kobayashi, K. Shirai, S. Oda W. Li, Erchao Meng, Hirokazu Tatsuoka, Tomoji Matsushita, T. Kuno, S.M. Cai, Kaito Nakane, Keiko Miyabayashi, Masaru Shimomura, W. Tomoda
Publikováno v:
Transactions of the Materials Research Society of Japan. 38:73-79