Hydrogen Permeability of a Foil of Pd–Ag Alloy Modified with a Nanoporous Palladium Coating

Петриев, И. С.; Болотин, С. Н.; Frolov, V. Yu.; Барышев, М. Г.; Sozayev, V. A.

doi:10.3103/s1062873818070316

Cited by 16 publications

(4 citation statements)

References 6 publications

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“…A summary of the developments in the most recent literature (within the 12 months preceding publication) of PdAg films is presented. While the primary focuses of research remain as previously outlined: hydrogen-permeable membranes, [216][217][218][219][220] and sensors. 221 Advanced analytical methods have also been used to explore the properties and reactions of PdAg film.…”

Section: State-of-the-art Developments and Researchmentioning

confidence: 99%

“…222,223 New advancements in additive manufacturing technologies, such inkjet chemistries, could provide additional routes to PdAg films with appropriate engineering. 224 Surface modifications of primary PdAg alloy hydrogen-permeable films with other metals and morphologies, such as Zn, 216 and nanoporous surfaces respectively, 217 have been demonstrated to improve hydrogen permittivity and lower effective temperatures and pressures, via reduction of ratelimiting reactions. 216,217 Sequential heat-treatment methodologies have been investigated and proven to increase hydrogen permittivity for thinner (<5 um) membranes.…”

Section: State-of-the-art Developments and Researchmentioning

confidence: 99%

“…224 Surface modifications of primary PdAg alloy hydrogen-permeable films with other metals and morphologies, such as Zn, 216 and nanoporous surfaces respectively, 217 have been demonstrated to improve hydrogen permittivity and lower effective temperatures and pressures, via reduction of ratelimiting reactions. 216,217 Sequential heat-treatment methodologies have been investigated and proven to increase hydrogen permittivity for thinner (<5 um) membranes. 218 Advancements in preparative technologies have also been investigated, including high-powered magnetron sputtering-based PVD methods, 219 and plasma methods.…”

Section: State-of-the-art Developments and Researchmentioning

confidence: 99%

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Manufacture, Applications, and Opportunities of Thin Film Palladium-Silver (PdAg) Alloys: A Review

Holdsworth¹

2019

Preprint

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The noble metals palladium and silver find use in many high performance applications, and their alloys (PdAg), known for more than sixty years, are industrially important, finding use in many fields including hydrogen purification and separation, numerous facets of catalysis, and in fuel cells. In recent years, interest in these materials has grown significantly, particularly in energy generating applications and due to their performance as solid-state chemical sensors for a range of small molecules. PdAg thin films can be prepared using traditional physical methods such as cold rolling, or more modern and controllable chemical or physical deposition techniques such as electrodeposition or chemical vapour deposition. Despite the wide-reaching uses of PdAg, several recent advancements in materials preparation, such as additive manufacturing, better known as 3-D printing, remain unexplored for this material due to the differing chemistries of the two elements. In this review, we explore the manufacturing methods commonly employed for the preparation of PdAg thin films, the common and niche applications of these materials, and opportunities for the future development of these two aspects, with an emphasis on how preparation of thin films can utilise additive manufacturing approaches.

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Section: State-of-the-art Developments and Researchmentioning

confidence: 99%

Section: State-of-the-art Developments and Researchmentioning

confidence: 99%

Section: State-of-the-art Developments and Researchmentioning

confidence: 99%

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Manufacture, Applications, and Opportunities of Thin Film Palladium-Silver (PdAg) Alloys: A Review

Holdsworth¹

2019

Preprint

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“…Changes in deuterium content can have a profound effect on the physiological processes in the body [ 1 , 2 ]. The creation of modern methods for deuterium-depleted water (DDW) production [ 3 , 4 , 5 , 6 , 7 ] has made possible the targeted regulation of HDO molecule levels in drinking water while tracking the response of various organs and body systems.…”

Section: Introductionmentioning

confidence: 99%

Electrophysiological Activity and Survival Rate of Rats Nervous Tissue Cells Depends on D/H Isotopic Composition of Medium

et al. 2021

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The deuterium content modification in an organism has a neuroprotective effect during the hypoxia model, affecting anxiety, memory and stress resistance. The aim of this work was to elucidate the possible mechanisms of the medium D/H composition modification on nerve cells. We studied the effect of an incubation medium with a 50 ppm deuterium content compared to a medium with 150 ppm on: (1) the activity of Wistar rats’ hippocampus CA1 field neurons, (2) the level of cultured cerebellar neuron death during glucose deprivation and temperature stress, (3) mitochondrial membrane potential (MMP) and the generation of reactive oxygen species in cultures of cerebellar neurons. The results of the analysis showed that the incubation of hippocampal sections in a medium with a 50 ppm deuterium reduced the amplitude of the pop-spike. The restoration of neuron activity was observed when sections were returned to the incubation medium with a 150 ppm deuterium content. An environment with a 50 ppm deuterium did not significantly affect the level of reactive oxygen species in neuron cultures, while MMP decreased by 16–20%. In experiments with glucose deprivation and temperature stress, the medium with 50 ppm increased the death of neurons. Thus, a short exposure of nerve cells in the medium with 50 ppm deuterium acts as an additional stressful factor, which is possibly associated with the violation of the cell energy balance. The decrease in the mitochondrial membrane potential, which is known to be associated with ATP synthesis, indicates that this effect may be associated with the cell energy imbalance. The decrease in the activity of the CA1 field hippocampal neurons may reflect reversible adaptive changes in the operation of fast-reacting ion channels.

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Silver monoliths and their applications in catalytic reduction of 4-NP to 4-AP and sensing against As3+

et al. 2022

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Hydrogen Permeability of a Foil of Pd–Ag Alloy Modified with a Nanoporous Palladium Coating

Cited by 16 publications

References 6 publications

Manufacture, Applications, and Opportunities of Thin Film Palladium-Silver (PdAg) Alloys: A Review

Manufacture, Applications, and Opportunities of Thin Film Palladium-Silver (PdAg) Alloys: A Review

Electrophysiological Activity and Survival Rate of Rats Nervous Tissue Cells Depends on D/H Isotopic Composition of Medium

Silver monoliths and their applications in catalytic reduction of 4-NP to 4-AP and sensing against As3+

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