Results 211 to 220 of about 266,896 (257)
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Dissociative chemisorption of water on titanium
Langmuir, 1988Etude experimentale par spectrometrie de recul direct en temps de vol, et par spectrometrie de photoelectron. Analyse des especes presentes a la surface. L'analyse thermodynamique montre qu'il existe une force conductrice tres importante envers la chimisorption ...
Subhodaya Aduru, J. Wayne Rabalais
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REACTIONS IN DISSOCIATED WATER VAPOR
Canadian Journal of Chemistry, 1951Water vapor dissociated by an electric discharge and passed into a cold trap yielded products which gave off oxygen at temperatures above −120°C. and at room temperature consisted of hydrogen peroxide and water. With products formed under given conditions, the amount of oxygen evolved with warming was proportional to the total amount of product and ...
R. A. Jones, C. A. Winkler
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Dissociation of water by microwave radiation
Radiophysics and Quantum Electronics, 1994The hydrogen-peroxide concentrations c(H2O2) in water irradiated by electromagnetic energy at frequencies of 2500 MHz and 10000 MHz are measured by means of chemiluminescence. It is concluded that water dissociation into H and OH groups is a part of the mechanism of microwave-radiation absorption.
V. L. Vaks +4 more
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Dissociation of water on a palladium nanoparticle
International Journal of Quantum Chemistry, 2010AbstractAb initio SCF‐CI theory has been used to examine the interactions of a single water molecule with a 31‐atom nanocluster of palladium. Calculations are performed on singly‐charged cationic and anionic particles in addition to the neutral system to determine effects of charging on the adsorption energy of water and the barriers to dissociation ...
Brian N. Papas, Jerry L. Whitten
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Water dissociation on multimetallic catalysts
Applied Catalysis B: Environmental, 2017Abstract DFT based calculations were employed in the study of the dissociation of the water molecule onto copper and nickel (110) and (111) surface models, incorporating two additional metallic elements, because it was found previously that metal alloying leads to strong synergic effects in the catalysis of this reaction.
José L.C. Fajín +2 more
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Thermoacoustics and thermal dissociation of water
The Journal of the Acoustical Society of America, 2007Near 2600 K, 10% of water molecules are thermally dissociated at atmospheric pressure, with a reaction time constant below 1 ms. Such temperatures can be reached with focused sunlight. To use this endothermic reaction for the production of hydrogen, the hydrogen must be separated from the oxygen at high temperature, because they would quickly recombine
Gregory W. Swift, Drew A. Geller
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Imaging Water Dissociation on TiO2(110)
Physical review letters, 2001Physical Review ...
Brookes, I. M. +2 more
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Dissociative model of water clusters
The Journal of Chemical Physics, 1999A model of water is introduced that dissociates into either ionic or covalent molecular fragments. The model is based on a semiempirical calculation embedded in a molecular mechanics approach. It contains electronic degrees of freedom that allow the calculation of partial charges that vary smoothly from the bound state to the dissociated states.
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Lifetimes of Excess Protons in Water Using a Dissociative Water Potential
The Journal of Physical Chemistry B, 2013Molecular dynamics simulations using a dissociative water potential were applied to study transport of excess protons in water and determine the applicability of this potential to describe such behavior. While originally developed for gas-phase molecules and bulk liquid water, the potential is transferrable to nanoconfinement and interface scenarios ...
Glenn K, Lockwood, Stephen H, Garofalini
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Structure-Dependent Dissociation of Water on Cobalt Oxide
The Journal of Physical Chemistry Letters, 2018Understanding the correlation between structure and reactivity of oxide surfaces is vital for the rational design of catalytic materials. In this work, we demonstrate the exceptional degree of structure sensitivity of the water dissociation reaction for one of the most important materials in catalysis and electrocatalysis.
Matthias Schwarz +11 more
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