Ni-based amorphous alloy membranes for hydrogen separation at 400°C

Dolan, Michael D.; Dave, N.; Morpeth, L.D.; Donelson, Richard; Liang, Daniel; Kellam, Michael; Song, Song

doi:10.1016/j.memsci.2008.10.030

Cited by 54 publications

(32 citation statements)

References 20 publications

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“…Zr-containing NieNb-based amorphous alloys demonstrated excellent hydrogen permeability and appear to be promising candidates for the separation and purification of hydrogen [6,15,27]. The hydrogen permeability has been found to vary with the alloy composition [6,27,28]; however it is not understood yet whether this dependency results from a chemical or topological effect.…”

Section: Discussionmentioning

confidence: 99%

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Hydrogenation properties of Ni-Nb-Zr–Ta amorphous ribbons

et al. 2010

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Section: Discussionmentioning

confidence: 99%

“…The hydrogen permeability has been found to vary with the alloy composition [6,27,28]; however it is not understood yet whether this dependency results from a chemical or topological effect.…”

Section: Discussionmentioning

confidence: 99%

Hydrogenation properties of Ni-Nb-Zr–Ta amorphous ribbons

et al. 2010

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“…Earlier works have demonstrated that the hydrogen permeability of metallic glasses is strongly dependent on the constituent elements and alloy composition [7,[15][16][17][18]. Oji et al have reported that the local structure around the constituent elements in Ni-Nb-Zr-H amorphous alloys varied significantly with variations in the Zr content [19], which is believed to affect the hydrogen diffusion path and thus the permeability.…”

Section: Resultsmentioning

confidence: 99%

Hydrogen permeability of glass-forming Ni-Nb-Zr-Ta crystalline membranes

et al. 2011

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A crystalline form of a glass-forming Ni-Nb-Zr-Ta alloy was studied as a hydrogen permeation membrane working in the temperature range from 573 K to 773 K. The crystalline membrane composed of an Nb-rich phase in an Ni 10 Zr 7 matrix demonstrated a hydrogen permeation property superior to the membrane of the same chemical composition with an amorphous structure and the values of the hydrogen permeability were found to exceed those of the Pd-based membranes. However, the mechanical stability deteriorated significantly such that all membranes failed during hydrogen permeation. This indicates a larger sensitivity to hydrogen embrittlement in comparison with the same alloy in an amorphous state.

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“…The crystallization temperatures (TX) of Ni42Zr30Nb28 and Ni42Zr30Ta28 were 807 and 865 K respectively, but although TX increased with Ta addition, the permeability decreased. Dolan et al [42] reported hydrogen separation by Ni-ETM (ETM = Early Transition Metal) amorphous membranes at the comparatively higher temperature of 673 K. They compared thermal stability and durability, hydrogen permeation of Ni-based amorphous alloys and suggested proper balance of eutectic alloy with early transition metal was suitable to obtain both permeability and thermal stability. According to their thermal analysis of binary and ternary Ni-ETM eutectic alloy by non-isotherm DSC, crystallization temperature increases with addition of early transition metal as follows Ta>Nb>Hf>Zr>Ti, i.e., Ta and Nb maximize thermal stability.…”

Section: Amorphous Ni-based Membranesmentioning

confidence: 99%

“…It is well known that Zr additions to Ni-Nb amorphous alloys lead to greater H solubility [42]; this had significant impact on further investigation of Ni60Nb40-xZrx series for hydrogen separation applications. Dolan et al [43] continued their studies on Ni-Zr alloys to understand the glass-forming ability (GFA) of Ni64Zr36-xMx, x= 10 at.…”

Section: Amorphous Ni-based Membranesmentioning

confidence: 99%

Developments in the Ni–Nb–Zr amorphous alloy membranes

et al. 2016

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Most of the global H2 production is derived from hydrocarbon-based fuels, and efficient H2/CO2 separation is necessary to deliver a high purity H2 product. Hydrogen-selective alloy membranes are emerging as a viable alternative to traditional pressure swing absorption processes as a means for H2/CO2 separation. These membranes can be formed from a wide range of alloys, and those based on Pd are the closest to commercial deployment. The high cost of Pd (USD ~31,000 kg -1 ), however, is driving the development of less-expensive alternatives, including inexpensive amorphous (Ni60Nb40)100-xZrx alloys. Amorphous alloy membranes can be fabricated directly from the molten state into continuous ribbons via melt spinning, and depending on the composition, can exhibit relatively high hydrogen permeability between 473 and 673 K. Here we review recent developments in these low-cost membrane materials, especially with respect to permeation behavior, electrical transport properties, and understanding of local atomic order. In a quest to further understand the nature of these solids, atom probe tomography has been performed, revealing amorphous Nb-rich and Zr-rich clusters embedded in, majority Ni matrix, whose compositions deviated from the nominal overall composition of the membrane.

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Ni-based amorphous alloy membranes for hydrogen separation at 400°C

Cited by 54 publications

References 20 publications

Hydrogenation properties of Ni-Nb-Zr–Ta amorphous ribbons

Hydrogenation properties of Ni-Nb-Zr–Ta amorphous ribbons

Hydrogen permeability of glass-forming Ni-Nb-Zr-Ta crystalline membranes

Developments in the Ni–Nb–Zr amorphous alloy membranes

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