Zobrazeno 1 - 10
of 122
pro vyhledávání: '"Akihiro, Iiyama"'
Publikováno v:
Electrochemistry Communications, Vol 163, Iss , Pp 107733- (2024)
For polymer electrolyte fuel cells (PEFCs), platinum nanoparticles supported on carbon black (Pt/C) serve as the commonly used hydrogen anode catalyst, exhibiting high activity for the hydrogen oxidation reaction (HOR), while the carbon support is su
Externí odkaz:
https://doaj.org/article/b5fd71a9884741209dc88c621bd368e4
Publikováno v:
Journal of Power Sources Advances, Vol 13, Iss , Pp 100080- (2022)
The performance and stability of polymer electrolyte membrane fuel cells (PEMFCs) are directly affected by the distribution of water molecules inside the membrane. In this study, coherent anti-Stokes Raman scattering (CARS) spectroscopy was used to m
Externí odkaz:
https://doaj.org/article/f5b61d4330f6465dbb6a286bb7b540ed
Publikováno v:
ACS Omega, Vol 2, Iss 7, Pp 4053-4064 (2017)
Externí odkaz:
https://doaj.org/article/1736288c40df4168b2867b36eb723353
Autor:
Guoyu Shi, Tetsuro Tano, Donald A. Tryk, Akihiro Iiyama, Makoto Uchida, Yasufumi Kuwauchi, Akihiro Masuda, Katsuyoshi Kakinuma
Publikováno v:
Journal of Catalysis. 407:300-311
Autor:
Takahiro Suzuki, Shohji Tsushima, Kanae Kinose, Makoto Uchida, Akihiro Iiyama, Katsuyoshi Kakinuma
Publikováno v:
ECS Transactions. 104:185-190
Publikováno v:
ACS Catalysis. 11:5222-5230
We have examined the temperature dependence of the activities for the oxygen reduction reaction (ORR) at Pt catalysts supported on Nb-doped SnO2 (Pt/Nb-SnO2) in 0.1 M HClO4. The apparent rate const...
Publikováno v:
The Journal of Physical Chemistry C. 124:19508-19513
The distribution and the chemical states of water in the electrolyte membrane of proton-exchange membrane fuel cells (PEMFCs) directly affect the performance and stability during cell operation. Co...
Publikováno v:
ACS Applied Energy Materials. 3:6922-6928
We succeeded in the synthesis of two types of PtCo alloy catalysts supported on Ta-doped SnO2 without using carbon black additives. The PtCo disordered alloy supported on Ta-SnO2 (BET surface area,...
Autor:
Junji Inukai, Sebastian Lacher, Katsuhiko Oshikawa, Shogo Takamuku, Akihiro Iiyama, Hiromichi Nishiyama
Publikováno v:
The Journal of Physical Chemistry C. 124:9703-9711
On the performance and stability of proton exchange membrane fuel cells (PEMFCs), the water distribution inside the membrane has a direct influence. In this study, coherent anti-Stokes Raman scatte...
Autor:
Guoyu Shi, Makoto Uchida, Donald A. Tryk, Hiroyuki Uchida, Toshio Iwataki, Hiroshi Yano, Akihiro Iiyama
Publikováno v:
Journal of Materials Chemistry A. 8:1091-1094
Hydroxyl radicals (˙OH) are responsible for much of the degradation of the proton exchange membrane (PEM) used in fuel cells. The conventional approach has been to use radical scavengers incorporated into the PEM, but performance is decreased. Here,