scholarly journals Probing Hot Electron Flow Generated on Pt Nanoparticles with Au/TiO2Schottky Diodes during Catalytic CO Oxidation

Nano Letters ◽  
2008 ◽  
Vol 8 (8) ◽  
pp. 2388-2392 ◽  
Author(s):  
Jeong Y. Park ◽  
Hyunjoo Lee ◽  
J. Russell Renzas ◽  
Yawen Zhang ◽  
Gabor A. Somorjai
Keyword(s):  
Co Oxidation ◽  
Electron Flow ◽  
Pt Nanoparticles ◽  
Hot Electron ◽  
Catalytic Co Oxidation

scholarly journals Catalytic CO Oxidation and H2O2 Direct Synthesis over Pd and Pt-Impregnated Titania Nanotubes

Catalysts ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 949
Author(s):  
Lucas Warmuth ◽  
Gülperi Nails ◽  
Maria Casapu ◽  
Sheng Wang ◽  
Silke Behrens ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Co Oxidation ◽  
Gas Phase ◽  
Surface Area ◽  
Heterogeneous Catalysts ◽  
Direct Synthesis ◽  
Pt Nanoparticles ◽  
Titania Nanotubes ◽  
Catalytic Co Oxidation ◽  
H2o2 Direct Synthesis

Titania nanotubes (TNTs) impregnated with Pd and Pt nanoparticles are evaluated as heterogeneous catalysts in different conditions in two reactions: catalytic CO oxidation (gas phase, up to 500 °C) and H2O2 direct synthesis (liquid phase, 30 °C). The TNTs are obtained via oxidation of titanium metal and the intermediate layer-type sodium titanate Na2Ti3O7. Thereafter, the titanate layers are exfoliated and show self-rolling to TNTs, which, finally, are impregnated with Pd or Pt nanoparticles at room temperature by using Pd(ac)2 and Pt(ac)2. The resulting crystalline Pd/TNTs and Pt/TNTs are realized with different lengths (long TNTs: 2.0–2.5 µm, short TNTs: 0.23–0.27 µm) and a specific surface area up to 390 m2/g. The deposited Pd and Pt particles are 2–5 nm in diameter. The TNT-derived catalysts show good thermal (up to 500 °C) and chemical stability (in liquid-phase and gas-phase reactions). The catalytic evaluation results in a low CO oxidation light-out temperature of 150 °C for Pt/TNTs (1 wt-%) and promising H2O2 generation with a productivity of 3240 molH2O2 kgPd−1 h−1 (Pd/TNTs, 5 wt-%, 30 °C). Despite their smaller surface area, long TNTs outperform short TNTs with regard to both CO oxidation and H2O2 formation.

scholarly journals Ordered intermetallic Pt–Cu nanoparticles for the catalytic CO oxidation reaction

RSC Advances ◽  
2016 ◽  
Vol 6 (88) ◽  
pp. 85634-85642 ◽  
Author(s):  
Govindachetty Saravanan ◽  
Rohini Khobragade ◽  
Laxmi Chand Nagar ◽  
Nitin Labhsetwar
Keyword(s):  
Particle Size ◽  
Co Oxidation ◽  
Oxidation Reaction ◽  
Average Particle Size ◽  
Pt Nanoparticles ◽  
Average Particle ◽  
Cu Nanoparticles ◽  
Catalytic Co Oxidation ◽  
Co Oxidation Reaction ◽  
Ordered Intermetallic

Intermetallic platinum (Pt) nanoparticles using the abundantly available element copper (Pt3Cu, PtCu, PtCu3) with an average particle size of 4–5 nm on a γ-Al2O3 support were prepared to reduce the consumption of Pt for the removal of CO from gases.

Role of surface coverage of alumina with Pt nanoparticles deposited by laser electrodispersion in catalytic CO oxidation

2021 ◽  
Vol 536 ◽  
pp. 147656
Author(s):  
E.V. Golubina ◽  
T.N. Rostovshchikova ◽  
E.S. Lokteva ◽  
K.I. Maslakov ◽  
S.A. Nikolaev ◽  
...  
Keyword(s):  
Co Oxidation ◽  
Surface Coverage ◽  
Pt Nanoparticles ◽  
Catalytic Co Oxidation

Catalytic CO Oxidation over Pt Nanoparticles Prepared from the Polyol Reduction Method Supported on Yttria-Stabilized Zirconia

2019 ◽  
Vol 35 (28) ◽  
pp. 43-57 ◽  
Author(s):  
Rima Isaifan ◽  
Holly Dole ◽  
Emil Obeid ◽  
Leonardo Lizarraga ◽  
Elena A. Baranova ◽  
...  
Keyword(s):  
Co Oxidation ◽  
Reduction Method ◽  
Pt Nanoparticles ◽  
Yttria Stabilized Zirconia ◽  
Stabilized Zirconia ◽  
Catalytic Co Oxidation

Investigation of ZnCo2O4–Pt hybrids with different morphologies towards catalytic CO oxidation

2015 ◽  
Vol 44 (48) ◽  
pp. 21124-21130 ◽  
Author(s):  
Fan Wang ◽  
Xiao Wang ◽  
Dapeng Liu ◽  
Jiangman Zhen ◽  
Junqi Li ◽  
...  
Keyword(s):  
Co Oxidation ◽  
Pt Nanoparticles ◽  
Catalytic Co Oxidation

In this work, three kinds of ZnCo2O4 morphologies, that is, rod, plate and sphere, have been successfully prepared and further used to support Pt nanoparticles (NPs) via in situ deposition.

Catalytic CO Oxidation on Unreconstructed Cu(110) by Reactive As-Adsorbed Oxygen Atoms below 230 K

1996 ◽  
Vol 100 (3) ◽  
pp. 1048-1054 ◽  
Author(s):  
Tsuyoshi Sueyoshi ◽  
Takehiko Sasaki ◽  
Yasuhiro Iwasawa
Keyword(s):  
Co Oxidation ◽  
Adsorbed Oxygen ◽  
Catalytic Co Oxidation ◽  
Oxygen Atoms

SUPPRESSING SPIRAL WAVES IN EXCITABLE MEDIA VIA UNIDIRECTIONAL COUPLING

2008 ◽  
Vol 22 (24) ◽  
pp. 4153-4161 ◽  
Author(s):  
YU QIAN ◽  
YU XUE ◽  
GUANG-ZHI CHEN
Keyword(s):  
Co Oxidation ◽  
Power Law ◽  
Coupling Strength ◽  
Control Method ◽  
Spiral Waves ◽  
Coupling Method ◽  
Excitable Media ◽  
Catalytic Co Oxidation ◽  
Unidirectional Coupling ◽  
High Control

A unidirectional coupling method to successfully suppress spiral waves in excitable media is proposed. It is shown that this control method has high control efficiency and is robust. It adapts to control of spiral waves for catalytic CO oxidation on platinum as well as for the FHN model. The power law n ~ c-k of control time steps n versus the coupling strength c for different models has been obtained.

scholarly journals The critical role of water at the gold-titania interface in catalytic CO oxidation

Science ◽  
2014 ◽  
Vol 345 (6204) ◽  
pp. 1599-1602 ◽  
Author(s):  
J. Saavedra ◽  
H. A. Doan ◽  
C. J. Pursell ◽  
L. C. Grabow ◽  
B. D. Chandler
Keyword(s):  
Co Oxidation ◽  
Critical Role ◽  
Catalytic Co Oxidation

Electrochemical promotion of catalytic CO oxidation on Pt/YSZ catalysts under low pressure conditions

1999 ◽  
Vol 1 (22) ◽  
pp. 5241-5249 ◽  
Author(s):  
Jens Poppe ◽  
Stefan Völkening ◽  
Andreas Schaak ◽  
Eckart Schütz ◽  
Jürgen Janek ◽  
...  
Keyword(s):  
Co Oxidation ◽  
Electrochemical Promotion ◽  
Low Pressure ◽  
Catalytic Co Oxidation
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