Corrosion-Resistant PEMFC Cathode Catalysts Based on a Magnéli-Phase Titanium Oxide Support Synthesized by Pulsed UV Laser Irradiation

2011 ◽  
Vol 158 (10) ◽  
pp. C329 ◽  
Author(s):  
Tsutomu Ioroi ◽  
Tomoki Akita ◽  
Shin-ichi Yamazaki ◽  
Zyun Siroma ◽  
Naoko Fujiwara ◽  
...  
Keyword(s):  
Laser Irradiation ◽  
Titanium Oxide ◽  
Uv Laser ◽  
Corrosion Resistant ◽  
Cathode Catalysts ◽  
Oxide Support ◽  
Pemfc Cathode

Microcrystal Structures in Titanium Oxide Films Produced by Pulsed UV-Laser Irradiation

2001 ◽  
Vol 40 (Part 2, No. 10A) ◽  
pp. L1054-L1057 ◽  
Author(s):  
Yo Ichikawa ◽  
Kentaro Setsune ◽  
Syun-ichiro Kawashima ◽  
Koichi Kugimiya
Keyword(s):  
Laser Irradiation ◽  
Titanium Oxide ◽  
Oxide Films ◽  
Uv Laser ◽  
Titanium Oxide Films

UV Laser Irradiation Effects on Frequency of Surface Acoustic Wave (SAW) Filters Coated with Titanium Oxide Films

1997 ◽  
Vol 36 (Part 2, No. 7A) ◽  
pp. L889-L891 ◽  
Author(s):  
Yo Ichikawa ◽  
Kentaro Setsune ◽  
Syun-ichiro Kawashima ◽  
Koichi Kugimiya
Keyword(s):  
Acoustic Wave ◽  
Laser Irradiation ◽  
Titanium Oxide ◽  
Surface Acoustic Wave ◽  
Oxide Films ◽  
Uv Laser ◽  
Irradiation Effects ◽  
Titanium Oxide Films

Tunable Synthesis of N,C-Codoped Ti3+-Enriched Titanium Oxide Support for Highly Durable PEMFC Cathode

ACS Catalysis ◽  
2020 ◽  
Vol 10 (20) ◽  
pp. 12080-12090 ◽  
Author(s):  
Eungjun Lee ◽  
Changmin Park ◽  
Dong Wook Lee ◽  
Gibaek Lee ◽  
Hee-Young Park ◽  
...  
Keyword(s):  
Titanium Oxide ◽  
Oxide Support ◽  
Pemfc Cathode

Formation of electro-conductive titanium oxide fine particles by pulsed UV laser irradiation

2010 ◽  
Vol 12 (27) ◽  
pp. 7529 ◽  
Author(s):  
Tsutomu Ioroi ◽  
Hiroyuki Kageyama ◽  
Tomoki Akita ◽  
Kazuaki Yasuda
Keyword(s):  
Laser Irradiation ◽  
Titanium Oxide ◽  
Fine Particles ◽  
Uv Laser

Studies on the mechanism of printing film-coated tablets containing titanium dioxide in the film by using UV laser irradiation

2009 ◽  
Vol 00 (00) ◽  
pp. 090915102728058-8
Author(s):  
Yoshiteru Kato ◽  
Yasuhiko Nakashima ◽  
Naoki Shino ◽  
Koichi Sasaki ◽  
Akihiro Hosokawa ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Laser Irradiation ◽  
Uv Laser

Electron Holographic Nano-Characterization of Gold Catalyst at Interface

2002 ◽  
Vol 727 ◽  
Author(s):  
S. Ichikawa ◽  
T. Akita ◽  
M. Okumura ◽  
M. Haruta ◽  
K. Tanaka
Keyword(s):  
Contact Angle ◽  
Titanium Oxide ◽  
Gold Catalyst ◽  
Three Dimensional ◽  
High Resolution Electron Microscopy ◽  
Electron Holography ◽  
Gold Particles ◽  
Oxide Support ◽  
The Mean ◽  
A Charge

AbstractThe catalytic properties of nanostructured gold catalyst are known to depend on the size of the gold particles and to be activated when the size decreases to a few nanometers. We investigated the size dependence of the three-dimensional nanostructure on the mean inner potential of gold catalysts supported on titanium oxide using electron holography and high-resolution electron microscopy (HREM). The contact angle of the gold particles on the titanium oxide tended to be over 90° for gold particles with a size of over 5 nm, and below 90° for a size of below 2 nm. This decreasing change in the contact angle (morphology) acts to increase the perimeter and hence the area of the interface between the gold and titanium oxide support, which is considered to be an active site for CO oxidation. The mean inner potential of the gold particles also changed as their size decreased. The value of the inner potential of gold, which is approximately 25 V in bulk state, rose to over 40 V when the size of the gold particles was less than 2 nm. This phenomenon indicates the existence of a charge transfer at the interface between gold and titanium oxide. The 3-D structure change and the inner potential change should be attributed to the specific electronic structure at the interface, owing to both the “nano size effect” and the “hetero-interface effect.”

Observation of liquid carbon on diamond films under pulsed IR and UV laser irradiation

1996 ◽  
Vol 53 (2) ◽  
pp. 543-546 ◽  
Author(s):  
P. Tosin ◽  
W. Lüthy ◽  
H. P. Weber
Keyword(s):  
Laser Irradiation ◽  
Diamond Films ◽  
Uv Laser ◽  
Liquid Carbon
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