Results 231 to 240 of about 69,752 (265)

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

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

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

PtS-decorated WS2 microflakes based sensors for selective ammonia detection at room temperature

Sensors and Actuators B: Chemical, 2023
Sang Sub Kim, Hyoun Woo Kim, Mohammad Moaddeli   +2 more
exaly  

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

Angewandte Chemie, 1964
K. Krogmann, H. D. Hausen
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
exaly  

Prevalence of anxiety and post-traumatic stress (PTS) among the parents of babies admitted to neonatal units: A systematic review and meta-analysis

EClinicalMedicine, 2022
, , Siân Harrison
exaly  

Atomic interactions of two-dimensional PtS2 quantum dots/TiC heterostructures for hydrogen evolution reaction

Applied Catalysis B: Environmental, 2021
Tri Khoa Nguyen, Cheol-Min Park, Ki-Hun Nam   +2 more
exaly  

PT ANALYTICAL

Analytical Chemistry, 1983
openaire   +2 more sources