Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Hideo Naohara"'
Publikováno v:
The Journal of Physical Chemistry C. 117:15704-15709
Potential-dependent adsorption/desorption behavior of perfluorosulfonated ionomer (PFSI) on a platinum electrode was investigated by cyclic voltammetry, electrochemical quartz crystal microbalance (EQCM), and electrochemical atomic force microscope (
Autor:
Osami Sakata, Hideo Naohara, Kohei Uosaki, Toshihiro Kondo, Takuya Masuda, Kazuhisa Tamura, Hitoshi Fukumitsu
Publikováno v:
The Journal of Physical Chemistry C. 117:12168-12171
The structure of the perfluorosulfonated ionomer (PFSI)/Pt(111) interface in a membrane electrode assembly (MEA)-like configuration of a polymer electrolyte membrane (PEM) fuel cell, that is, a vacuum evaporated Pt layer/PEM(Nafion membrane)/PFSI(adh
Publikováno v:
Electrochemistry Communications, Vol 27, Iss, Pp 5-8 (2013)
Humidity-dependent water structures at the interfaces between perfluorosulfonate ionomer (PFSI = Nafion) thin film and Pt and HOPG were determined at room temperature by using sum frequency generation (SFG) spectroscopy. At low relative humidity (RH)
Publikováno v:
Journal of Power Sources. 196:7510-7513
Palladium–platinum nanoalloys with a core–shell and nano-network structure were successfully synthesized by a hydrogen sacrificial protective method in an aqueous solution directly using a perfluorinated sulfonic acid (PFSA) ionomer as a protecti
Autor:
Jia X. Wang, Ping Liu, Miomir B. Vukmirovic, Kotaro Sasaki, Yun Cai, Hideo Naohara, Radoslav R. Adzic, YongMan Choi
Publikováno v:
Angewandte Chemie. 122:8784-8789
More than skin deep: Platinum monolayers can act as shells for palladium nanoparticles to lead to electrocatalysts with high activities and an ultralow platinum content, but high platinum utilization. The stability derives from the core protecting th
Publikováno v:
Journal of Physical Chemistry C. 114(9):3958-3961
Humidity-dependent water structure on the Nafion thin film surface was determined at room temperature by using sum frequency generation spectroscopy (SFG). When the Nafion thin film was exposed to a low relative humidity (RH) environment, a peak at 3
Autor:
Hideo Naohara, Nebojsa Marinkovic, Jia X. Wang, Kotaro Sasaki, Hiromi Inada, Karren L. More, Radoslav R. Adzic
Publikováno v:
Electrochimica Acta. 55:2645-2652
We have established a scale-up synthesis method to produce gram-quantities of Pt monolayer electrocatalysts. The core–shell structure of the Pt/Pd/C electrocatalyst has been verified using the HAADF-STEM Z-contrast images, STEM/EELS, and STEM/EDS l
Publikováno v:
Chemistry Letters. 40:1095-1097
We successfully synthesized Au–Pt bimetallic core–shell nanoparticles by simultaneous reduction covered with a perfluorinated sulfonic acid ionomer (PFSA) in an aqueous solution. The core–shell str...
Publikováno v:
ResearcherID
Electrochemical characteristics of ultra thin Pd epitaxial layers deposited electrochemically on Au(111) and Au(100) surfaces were found to be strongly dependent on the surface structure and the thickness of the Pd thin layers. The electrochemical ch
Publikováno v:
Journal of Power Sources. 195:1051-1053
Platinum nanoparticles were successfully prepared in an aqueous solution using a perfluorinated sulfonic acid copolymer (PFSA) as a protecting agent. PFSA having good proton conductivity, gas permeability and chemical stability is used as a polyelect