Tensile Properties of a Series of Palladium-Silver Alloys Exposed to Hydrogen

Rebeiz, Karim S.; Dahlmeyer, Joseph; Garrison, Travis; Garrison, Tyler; Darkey, Sedna; Paciulli, Danielle; Talukder, M.Q.-K.; Kubik, Joseph; Wald, Kyle; Massicotte, Fred; Nesbit, Steven M.; Craft, Andrew

doi:10.1061/(asce)ey.1943-7897.0000209

Cited by 6 publications

(13 citation statements)

References 17 publications

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“…The major application of PdAg thin films is the separation of H2 from other gases. 4,14,20,22,28,31,33,42,51,[76][77][78][79][80][81][82][83][84][85][86][87][88][89][90][91][92]126,135,[193][194][195][196][197][198][199][200][201][202][203][204][205][206][207] This known property can be combined with thermal heterogeneous catalytic activity, either from the film itself or from additional catalysts. These are generally continuous processes, 14,22,28,33,42,[81]…”

Section: 1: H2 Separation and Catalysismentioning

confidence: 99%

“…2 Palladium is further prized for its unique ability to chemically interact with and store hydrogen. [4][5][6] Alloys of the two metals (PdAg) have been known for more than sixty years, 4 and were first demonstrated in the 1950s and 60s by the Johnson Matthey company, who exploited their ability to purify hydrogen. [6][7][8][9] Alloys of PdAg display physical, chemical and electrical properties distinct from either of the two bulk elements.…”

Section: Introductionmentioning

confidence: 99%

“…[6][7][8][9] Alloys of PdAg display physical, chemical and electrical properties distinct from either of the two bulk elements. 4,[9][10][11] This allows for tuning of catalytic behaviour, electrical properties, or permittivity by changing the Pd to Ag ratio. 6,9,[12][13][14] Thin films of PdAg have been used for a range of applications since their discovery, 4 due primarily to the characteristic properties of palladium: hydrogen permittivity and catalytic activity.…”

Section: Introductionmentioning

confidence: 99%

“…4,[9][10][11] This allows for tuning of catalytic behaviour, electrical properties, or permittivity by changing the Pd to Ag ratio. 6,9,[12][13][14] Thin films of PdAg have been used for a range of applications since their discovery, 4 due primarily to the characteristic properties of palladium: hydrogen permittivity and catalytic activity. 4,9,14 Alloying Pd with Ag helps to offset some of the challenges encountered when using Pd in the presence of H2, discussed in detail later.…”

Section: Introductionmentioning

confidence: 99%

“…6,9,[12][13][14] Thin films of PdAg have been used for a range of applications since their discovery, 4 due primarily to the characteristic properties of palladium: hydrogen permittivity and catalytic activity. 4,9,14 Alloying Pd with Ag helps to offset some of the challenges encountered when using Pd in the presence of H2, discussed in detail later. 5,8 Advancements in manufacturing techniques and technology generally have broadened the viable uses of PdAg beyond the initial hydrogen purification and catalytic applications and into fields such as sensing 15 and the generation of energy in fuel cells.…”

Section: Introductionmentioning

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: 1: H2 Separation and Catalysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

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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Effects of multiple hydrogen absorption/desorption cycles on the mechanical properties of the alloy system palladium/silver (wt% = 10–25)

et al. 2016

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Strength, Hardness, and Ductility Evidence of Solid Solution Strengthening and Limited Hydrogen Embrittlement in the Alloy System Palladium-Copper (Cu wt. % 5–25)

et al. 2021

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Strength, hardness, and ductility characteristics were determined for a series of palladium-copper alloys that compositionally vary from 5 to 25 weight percent copper. Alloy specimens subjected to vacuum annealing showed clear evidence of solid solution strengthening. These specimens showed, as a function of increasing copper content, increased yield strength, ultimate strength, and Vickers microhardness, while their ductility was little affected by compositional differences. Annealed alloy specimens subsequently subjected to exposure to hydrogen at 323 K and PH2 = 1 atm showed evidence of hydrogen embrittlement up to a composition of ~15 wt. % Cu. The magnitude of the hydrogen embrittlement decreased with increasing copper content in the alloy.

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Tensile Properties of a Series of Palladium-Silver Alloys Exposed to Hydrogen

Cited by 6 publications

References 17 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

Effects of multiple hydrogen absorption/desorption cycles on the mechanical properties of the alloy system palladium/silver (wt% = 10–25)

Strength, Hardness, and Ductility Evidence of Solid Solution Strengthening and Limited Hydrogen Embrittlement in the Alloy System Palladium-Copper (Cu wt. % 5–25)

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