Effect of hydrogen on the electrical resistance of melt-spun Mg90Pd10 amorphous alloy

Nakano, Sumiaki; Yamaura, Shin Ichi; Uchinashi, Sakae; Kimura, Hisamichi; Inoue, Akihisa

doi:10.1016/j.snb.2004.04.101

Cited by 27 publications

(10 citation statements)

References 7 publications

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“…Various Pd alloys such as Pd-Mg, Pd-Au, Pd-Ag, and Pd-Ni have been explored to enhance the structural stability of the Pd-based thin films of the Pd-based thin films [40,79–82]. Among those, Pd-Au and Pd-Ag alloys have been more studied due to their advantages such as crystal structures similar to that of Pd, higher hydrogen solubilities than pure Pd, and good capabilities to suppress structural deformations.…”

Section: Two-dimensional Pd Thin Filmsmentioning

confidence: 99%

Low-Dimensional Palladium Nanostructures for Fast and Reliable Hydrogen Gas Detection

Noh

Lee

2011

Sensors

144

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Palladium (Pd) has received attention as an ideal hydrogen sensor material due to its properties such as high sensitivity and selectivity to hydrogen gas, fast response, and operability at room temperature. Interestingly, various Pd nanostructures that have been realized by recent developments in nanotechnologies are known to show better performance than bulk Pd. This review highlights the characteristic properties, issues, and their possible solutions of hydrogen sensors based on the low-dimensional Pd nanostructures with more emphasis on Pd thin films and Pd nanowires. The finite size effects, relative strengths and weaknesses of the respective Pd nanostructures are discussed in terms of performance, manufacturability, and practical applicability.

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Section: Two-dimensional Pd Thin Filmsmentioning

confidence: 99%

Low-Dimensional Palladium Nanostructures for Fast and Reliable Hydrogen Gas Detection

Noh

Lee

2011

Sensors

144

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“…Since the discovery of amorphous alloys in the 1960s, [98] amorphousa lloys have been considered as promisingc andidates for hydrogen storage, [99,100] hydrogen sensors, [35,101] hydrogenp urifications, [102] and other hydrogen-related applications.W ith respectt oh ydrogen storage,M g ÀREÀNi amorphous alloys are agroup of materials attracting much interest because of ah ydrogen density as high as 7.7 wt %i nt he case of MgH 2 ;h owever, they suffer from disproportion reactions and decompose into hydride composites containing MgH 2 , Mg 2 NiH 4 ,a nd REH 2-3 upon activation, [103,104] and hydrogenstorage reversibility is an issue.R ecently,L in et al reported ag lass-to-glass transition in amorphous Mg 80 Ce 10 Ni 10 alloy with as torage capacity as high as 5wt% H ( Figure 4a). [105] Thes torage capacities of the amorphous MgÀCeÀNi alloys are clearlyh igher than those of their crystalline counterparts due to the free volume andd isordered atomic structure associated with glasses ( Table 4).…”

Section: Amorphizationmentioning

confidence: 99%

Progress and Trends in Magnesium‐Based Materials for Energy‐Storage Research: A Review

Shao¹,

Lin

et al. 2017

Energy Tech

159

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For the realization of a hydrogen economy, one enabling technology is hydrogen storage. Magnesium‐based materials (MBMs) are very promising candidates for hydrogen storage due to the large hydrogen capacity and low cost. Challenges in the development of magnesium‐based hydrogen‐storage materials for various applications, particularly for onboard storage, are poor kinetics and unsuitable thermodynamics. Herein, new methods and techniques adopted by the researchers in this field are reviewed, with a focus on how different techniques could affect the hydrogen‐storage properties of MBMs, including kinetics and thermodynamics. Based on current progress, research trends in MBMs for various applications are introduced. Classical work from some pioneers, important milestones, and the latest development for these possible applications are summarized and future prospects in these fields are discussed.

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“…For pure bulk Pd or thin films, it is not likely to provide precise H 2 detection above a certain H 2 concentration where the transition from the a to b phase occurs. [76] These drawbacks can be solved by using Pd alloys with other elements such as Mg, [77] Au, [78] Ag, [79] and Ni. [76] These drawbacks can be solved by using Pd alloys with other elements such as Mg, [77] Au, [78] Ag, [79] and Ni.…”

Section: Two Mechanisms At Playmentioning

confidence: 99%

Design Rules for Nanogap‐Based Hydrogen Gas Sensors

et al. 2012

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Nanoscale gaps, which enable many research applications in fields such as chemical sensors, single-electron transistors, and molecular switching devices, have been extensively investigated over the past decade and have witnessed the evolution of related technologies. Importantly, nanoscale gaps employed in hydrogen-gas (H(2)) sensors have been used to reversibly detect H(2) in an On-Off manner, and function as platforms for enhancing sensing performance. Herein, we review recent advances in nanogap design for H(2) sensors and deal with various strategies to create these gaps, including fracture generation by H(2) exposure, deposition onto prestructured patterns, island formation on a surface, artificial manipulation methods, methods using hybrid materials, and recent approaches using elastomeric substrates. Furthermore, this review discusses a new nanogap design that advances sensing capabilities in order to meet the diverse needs of academia and industry.

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Effect of hydrogen on the electrical resistance of melt-spun Mg90Pd10 amorphous alloy

Cited by 27 publications

References 7 publications

Low-Dimensional Palladium Nanostructures for Fast and Reliable Hydrogen Gas Detection

Low-Dimensional Palladium Nanostructures for Fast and Reliable Hydrogen Gas Detection

Progress and Trends in Magnesium‐Based Materials for Energy‐Storage Research: A Review

Design Rules for Nanogap‐Based Hydrogen Gas Sensors

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