Application of the electron-donation model for hydrogen absorption to palladium-rich alloys. Hydrogen-gold-palladium

1968 ◽  
Vol 72 (1) ◽  
pp. 136-143 ◽  
Author(s):  
Kenneth D. Allard ◽  
Arnulf J. Maeland ◽  
John W. Simons ◽  
Ted B. Flanagan
Keyword(s):  
Hydrogen Absorption ◽  
Electron Donation

EFFECTS OF THE ELECTRONIC BAND SHAPE OF PALLADIUM METAL ON THE PROTON MODEL FOR HYDROGEN ABSORPTION

1965 ◽  
Vol 43 (6) ◽  
pp. 1665-1671 ◽  
Author(s):  
J. W. Simons ◽  
Ted B. Flanagan
Keyword(s):  
Hydrogen Absorption ◽  
Statistical Treatment ◽  
Original Model ◽  
Band Shape ◽  
Electronic Band ◽  
Critical Isotherm ◽  
Critical Composition ◽  
Improved Model ◽  
Electron Donation ◽  
Palladium Metal

The statistical treatment of the proton model for hydrogen absorption by palladium is extended to include a variation of the electron donation energy with hydrogen content, as determined by a density of states function for the combined 4d- and 5s-bands for palladium. This improved model gives better agreement with the high pressure limiting solubility data and the observed critical composition than the original model, when both are fitted to the critical isotherm by the same method. An apparent anomaly in the variation of the isosteric enthalpy of absorption with content is explained by the improved model.

Feasibility of electron donation to the CuO2 plane of mono-layer copper oxides by hydrogen absorption

1991 ◽  
Vol 185-189 ◽  
pp. 845-846
Author(s):  
Toshikazu Ekino ◽  
Kuniko Matsukuma ◽  
Toshiro Takabatake ◽  
Yoshiteru Maeno ◽  
Hironobu Fujii
Keyword(s):  
Hydrogen Absorption ◽  
Cuo2 Plane ◽  
Copper Oxides ◽  
Mono Layer ◽  
Electron Donation

Hydrogen absorption by very strong steel during chemical descaling

1966 ◽  
Vol 6 (11-12) ◽  
pp. 469-482 ◽  
Author(s):  
I GLASGOW ◽  
A ROSTRON ◽  
G THOMSON
Keyword(s):  
Hydrogen Absorption

A CHANGE IN MAGNETIC PROPERTIES OF Ho2Co7 INTERMETALLIC COMPOUND UPON HYDROGEN ABSORPTION

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-517-C2-518 ◽  
Author(s):  
A. Apostolov ◽  
L. Bozukov ◽  
N. Stanev ◽  
T. Mydlarz
Keyword(s):  
Magnetic Properties ◽  
Intermetallic Compound ◽  
Hydrogen Absorption

Investigation on the Hydrogen Gas Sensor Based on Exothermicity Reaction by Hydrogen Absorption into the Pd Film

2011 ◽  
Vol 131 (4) ◽  
pp. 148-153
Author(s):  
Noriaki Takashima ◽  
Mitsuteru Kimura
Keyword(s):  
Gas Sensor ◽  
Hydrogen Absorption ◽  
Hydrogen Gas

Control of hydrogen absorption by nickel films obtained upon magnetic spraying of zirconium alloy using the thermoEMF method

2020 ◽  
Vol 86 (8) ◽  
pp. 32-37
Author(s):  
V. V. Larionov ◽  
Xu Shupeng ◽  
V. N. Kudiyarov
Keyword(s):  
Magnetron Sputtering ◽  
Hydrogen Concentration ◽  
Hydrogen Absorption ◽  
Zirconium Alloy ◽  
Hydrogen Adsorption ◽  
Zirconium Alloys ◽  
Nickel Film ◽  
Protective Film ◽  
Nickel Films ◽  
Hydrogen Penetration

Nickel films formed on the surface of zirconium alloys are often used to protect materials against hydrogen penetration. Hydrogen adsorption on nickel is faster since the latter actively interacts with hydrogen, oxidizes and forms a protective film. The goal of the study is to develop a method providing control of hydrogen absorption by nickel films during vacuum-magnetron sputtering and hydrogenation via measuring thermoEMF. Zirconium alloy E110 was saturated from the gas phase with hydrogen at a temperature of 350°C and a pressure of 2 atm. A specialized Rainbow Spectrum unit was used for coating. It is shown that a nickel film present on the surface significantly affects the hydrogen penetration into the alloy. A coating with a thickness of more than 2 μm deposited by magnetron sputtering on the surface of a zirconium alloy with 1% Nb, almost completely protects the alloy against hydrogen penetration. The magnitude of thermoemf depends on the hydrogen concentration in the zirconium alloy and film thickness. An analysis of the hysteresis width of the thermoEMF temperature loop and a method for determining the effective activation energy of the conductivity of a hydrogenated material coated with a nickel film are presented. The results of the study can be used in assessing the hydrogen concentration and, hence, corrosion protection of the material.

The Influence of Mechanical Activation on Hydrogen Absorption by Intermetallic Compound LaNi2.5Co2.4Mn0.1

2020 ◽  
Vol 94 (5) ◽  
pp. 1007-1010
Author(s):  
P. A. Konik ◽  
E. A. Berdonosova ◽  
E. V. Meshcheryakova ◽  
S. N. Klyamkin
Keyword(s):  
Intermetallic Compound ◽  
Mechanical Activation ◽  
Hydrogen Absorption

Size-dependent Hydrogen trapping in Palladium nanoparticles

2021 ◽  
Author(s):  
Wang Liu ◽  
Yann Magnin ◽  
Georg Daniel Förster ◽  
Julie Bourgon ◽  
Thomas Len ◽  
...  
Keyword(s):  
Experimental Study ◽  
Theoretical Approach ◽  
Palladium Nanoparticles ◽  
Hydrogen Absorption ◽  
Pd Nanoparticles ◽  
Hydrogen Trapping ◽  
Size Dependent

We report an experimental study, supported by a theoretical approach based on simulations, to explore the phenomenon of H trapping in small Pd nanoparticles. Hydrogen absorption/desorption of a series of...

Hydrogen absorption performance investigation of a cylindrical MH reactor with rectangle heat exchange channels

Energy ◽  
2021 ◽  
pp. 121101
Author(s):  
Xiao-Shuai Bai ◽  
Wei-Wei Yang ◽  
Xin-Yuan Tang ◽  
Fu-Sheng Yang ◽  
Yu-Hang Jiao ◽  
...  
Keyword(s):  
Heat Exchange ◽  
Hydrogen Absorption ◽  
Absorption Performance
Sign in / Sign up

Export Citation Format

Share Document