Monitoring of hydrogen absorption/desorption into pressed cobalt powder using resistometry

Spasojević, M.; Krstajić, N.V.; Zelenović, L. Ribić; Maricic, A.

doi:10.1016/j.jallcom.2010.06.070

Cited by 3 publications

(1 citation statement)

References 72 publications

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“…And the decrease in resistance is due to the recombination of these ionized or dissolved hydrogen atoms. The hydrogen desorption from the cobalt surface around 200 o C has been reported by various researchers [25][26][27][28]. They found that the desorption temperature varies with the supporting matrix.…”

Section: Change In Resistance With Hydrogenation Of Zr1-xcox Filmsmentioning

confidence: 78%

Synthesis of Hydrogen Getter Zr1-xCox (x=0-1) Alloy Films by Magnetron Co-Sputtering

Dhonge

Singh

Panda

et al. 2020

J. Coat. Sci. Technol.

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The Zr1-xCox(x=0, 0.25, 0.53, 0.63, 1) thin films were deposited on quartz substrate using magnetron co-sputtering of Zirconium and Cobalt targets in confocal geometry. A constant pulsed direct current (PDC) on Zirconium and radio frequency (RF) of various powers on Cobalt target were applied to vary the concentration of Co in the Zr1-xCox film. The film composition was quantified using EDX measurements. The hydrogen storage capacity of these films was studied using an in-house developed hydrogen adsorption setup, in which the electrical resistivity of the film was monitored as a function of hydrogen partial pressure and temperature. The films' surface morphology and crystal structure before and after hydrogenation were characterized using atomic force microscopy and grazing incidence X-ray diffraction techniques using synchrotron radiation, respectively. An increase in the particle size after hydrogenation was observed for all the films. An increase in resistivity was also observed due to the absorption of hydrogen in all the compositions. The near stoichiometric film Zr0.47Co0.53 showed the highest hydrogen absorption level at 200 o C at all partial pressures. However, a decrease in the response at temperatures higher than 200 o C was observed in the film containing a Co concentration. The mechanism for the increase in resistivity of the film on hydrogenation is explained.

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Section: Change In Resistance With Hydrogenation Of Zr1-xcox Filmsmentioning

confidence: 78%

Synthesis of Hydrogen Getter Zr1-xCox (x=0-1) Alloy Films by Magnetron Co-Sputtering

Dhonge

Singh

Panda

et al. 2020

J. Coat. Sci. Technol.

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The kinetics of hydrogen absorption/desorption within nanostructured composite Ni79.1Co18.6Cu2.3 alloy using resistometry

Spasojević

Maricic

Zelenović

et al. 2013

Journal of Alloys and Compounds

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Development of new material for the environmental-friendly energy generation processes

et al. 2011

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The aim of this study was to develop a new material which has high hydrogen storage capacity and hydrogen absorption/desorption rate. This material, which is based on cobalt powder onto which palladium was chemically deposited can be used in environmentally friendly energy generation processes, thus ensuring preventive protection of human health. Hydrogen absorption was investigated using differential scanning calorimetry (DSC) and by measuring hydrogen pressure under isothermal and non-isothermal conditions in a chamber containing either pure cobalt powder either cobalt powder onto which palladium was chemically deposited (Co-0.003 Pd). The mechanism of hydrogen absorption has been described. It was noticed that palladium catalyses hydrogen absorption by dissociating the adsorbed H2 molecules into H atoms more rapidly on its own atoms than on cobalt ones. The catalysis of dissociation of H2 molecules enabled hydrogen absorption into Co-0.003 Pd powder to occur at lower temperatures. The results of this study enable integration of technological and public health investigation in order to ensure preventive protection of human health through enviromental protection

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Monitoring of hydrogen absorption/desorption into pressed cobalt powder using resistometry

Cited by 3 publications

References 72 publications

Synthesis of Hydrogen Getter Zr1-xCox (x=0-1) Alloy Films by Magnetron Co-Sputtering

Synthesis of Hydrogen Getter Zr1-xCox (x=0-1) Alloy Films by Magnetron Co-Sputtering

The kinetics of hydrogen absorption/desorption within nanostructured composite Ni79.1Co18.6Cu2.3 alloy using resistometry

Development of new material for the environmental-friendly energy generation processes

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