Hydrogen Induced Abrupt Structural Expansion at High Temperatures of a Ni32Nb28Zr30Cu10 Membrane for H2 Purification

Oriele Palumbo; Francesco Trequattrini; Madhura Hulyalkar; Suchismita Sarker; Narendra Pal; Dhanesh Chandra; Ted Flanagan; Michael Dolan; Annalisa Paolone

doi:10.3390/membranes6040048

Membranes (Nov 2016)

Hydrogen Induced Abrupt Structural Expansion at High Temperatures of a Ni32Nb28Zr30Cu10 Membrane for H2 Purification

Oriele Palumbo,
Francesco Trequattrini,
Madhura Hulyalkar,
Suchismita Sarker,
Narendra Pal,
Dhanesh Chandra,
Ted Flanagan,
Michael Dolan,
Annalisa Paolone

Affiliations

Oriele Palumbo: Consiglio Nazionale delle Ricerche, Istituto del Sistemi Complessi, U.O.S. La Sapienza, Piazzale A. Moro 5, Rome 00185, Italy
Francesco Trequattrini: Consiglio Nazionale delle Ricerche, Istituto del Sistemi Complessi, U.O.S. La Sapienza, Piazzale A. Moro 5, Rome 00185, Italy
Madhura Hulyalkar: Department of Chemical and Materials Engineering, University of Nevada, Reno, NV 89557, USA
Suchismita Sarker: Department of Chemical and Materials Engineering, University of Nevada, Reno, NV 89557, USA
Narendra Pal: Department of Chemical and Materials Engineering, University of Nevada, Reno, NV 89557, USA
Dhanesh Chandra: Department of Chemical and Materials Engineering, University of Nevada, Reno, NV 89557, USA
Ted Flanagan: Department of Chemistry, University of Vermont, Burlington, VT 05405, USA
Michael Dolan: Commonwealth Scientific and Industrial Research Organisation, Queensland Centre for Advanced Technologies, Energy, 1 Technology Court, Pullenvale 4069, Australia
Annalisa Paolone: Consiglio Nazionale delle Ricerche, Istituto del Sistemi Complessi, U.O.S. La Sapienza, Piazzale A. Moro 5, Rome 00185, Italy

DOI: https://doi.org/10.3390/membranes6040048
Journal volume & issue: Vol. 6, no. 4
p. 48

Abstract

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Ni-Nb-Zr amorphous membranes, prepared by melt-spinning, show great potential for replacing crystalline Pd-based materials in the field of hydrogen purification to an ultrapure grade (>99.999%). In this study, we investigate the temperature evolution of the structure of an amorphous ribbon with the composition Ni32Nb28Zr30Cu10 (expressed in atom %) by means of XRD and DTA measurements. An abrupt structural expansion is induced between 240 and 300 °C by hydrogenation. This structural modification deeply modifies the hydrogen sorption properties of the membrane, which indeed shows a strong reduction of the hydrogen capacity above 270 °C.

Published in Membranes

ISSN: 2077-0375 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Chemical technology: Chemical engineering
Website: https://www.mdpi.com/journal/membranes

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