Results 261 to 270 of about 118,480 (299)

Studies of kinetics of HCOOH oxidation on Pt(100), Pt(110), Pt(111), Pt(510) and Pt(911) single crystal electrodes

Journal of Electroanalytical Chemistry, 1999
The kinetics of HCOOH oxidation via a reactive intermediate on Pt(100), Pt(110), Pt(111), Pt(510) and Pt(911) single crystal electrodes were studied quantitatively. The difficulty due to the self-poisoning involved in HCOOH oxidation has been overcome successfully by designing a programmed potential step procedure, which is based on results of kinetic ...
Sun, SG, Yang, YY
openaire   +2 more sources

Comparison of methanol oxidations on Pt, Pt|Ru and Pt|Sn electrodes

Journal of Electroanalytical Chemistry, 1998
Abstract Electrochemical oxidations of methanol were compared on smooth or high area platinum, platinum|tin and platinum|ruthenium electrodes. On smooth platinum, while ruthenium promoted the catalytic activities steadily according to the coverage, tin showed an enhancing effect only for a short period of time because of the dissolution of tin from ...
Yu Morimoto, Ernest B Yeager
openaire   +1 more source

Effect of Pt Oxidation on Pt Resistance Thermometry

Metrologia, 1980
The effect of Pt oxidation on the electrical resistance of four different Pt resistance thermometers is investigated. It is shown that this process can cause large, undesirable resistance changes in these thermometers in spite of the low partial pressures of oxygen contained within them.
openaire   +1 more source

The capacitance of Pt/Pb0.65La0.28Ti0.96O3/Pt structures

Applied Physics Letters, 1996
The capacitance/voltage characteristics of thin paraelectric lead lanthanum titanate films are measured using platinum electrodes. The films have a maximum capacitance when either a small positive or negative bias voltage is applied. This characteristic is consistent with the electrode interfaces acting as Schottky-like barriers.
T. M. Shaw, R. B. Laibowitz, D. Beach, P. R. Duncombe   +3 more
openaire   +1 more source

Effect of oxygen on the diffusion of Ni in Pt in Pt-Ni-Pt films

Journal of Applied Physics, 1981
We have studied the effect of oxygen on the diffusion of Ni into Pt in the Pt-Ni-Pt films. Below 400 °C, the diffusion rates of Ni into both Pt layers are greatly reduced by oxygen. Above 500 °C, however, Ni rapidly mixes with Pt layers, which leads to the formation of Ni oxide on the Pt surface in the presence of oxygen.
Chin-An Chang, W. K. Chu
openaire   +1 more source

Theoretical study on the methane activation reactions by Pt, Pt+, and Pt− atoms

Journal of Molecular Structure: THEOCHEM, 1993
Abstract The oxidative additions of CH4 to the ground and excited states of Pt, Pt−, and Pt+ species are studied by the symmetry-adapted cluster (SAC) and SAC-CI methods. The reaction path is examined by calculating the Hellmann-Feynman forces acting on C and H atoms of CH4. It involves the transition state and/or the activated complex.
M. Hada, H. Nakatsuji, H. Nakai, S. Gyobu, S. Miki   +4 more
openaire   +1 more source

Pt-dimer dissociation on Pt(111)

Surface Science, 2001
Abstract An analysis of the temperature dependence of Pt-island number densities on Pt(1 1 1) and ab initio density functional theory calculations agree that the activation energy for Pt-dimer dissociation on Pt(1 1 1) is between 0.79 and 0.88 eV. This result is much larger than the value 0.49±0.01 eV obtained from field ion microscopy (FIM).
Peter J. Feibelman, Thomas Michely
openaire   +1 more source

Manipulating the Light-Matter Interaction of PtS/MoS2 p–n Junctions for High Performance Broadband Photodetection

Advanced Functional Materials, 2021
Zegao Wang, Lei Yang, Banglin Cao
exaly  

PtS-decorated WS microflakes based sensors for selective ammonia detection at room temperature

Sensors and Actuators B: Chemical, 2023
Sang-Sub Kim, Hyoun Woo Kim, Ali Mirzaei
exaly  

Zur Pt-Pt-Wechselwirkung planarer Pt(II)-Komplexe

Angewandte Chemie, 1964
K. Krogmann, H. D. Hausen
openaire   +1 more source