Hydrogen permeation and surface characteristics of Pd-coated Ni-Nb-Ta amorphous alloy membrane

Kwangdong Kim, Kibae Kim, Y. C. Kim, D. Y. Lee, D. H. Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

The hydrogen permeability of a palladium coated Ni60Nb 30Ta10 amorphous alloy was examined in the temperature range of 573-673 K and pressures up to 0.6 MPa. Commercialized Pd 60Cu40 alloy membranes were also evaluated in the same manner. The permeated hydrogen flux increased with increasing temperature and difference in the square-roots of hydrogen pressures on both sides of the membrane. It indicates that the diffusion of hydrogen atoms is the main factor for the hydrogen permeation in this alloy. The maximum hydrogen permeability of the Ni60Nb30Ta10 glassy alloy was 4.1×10-8 [mol/m as Pa1/2] at 673 K, which was much higher than that of Pd60Cu40 membranes measured under the same conditions, 1.9×10-8 [mol/m s Pa1/2] at 673 K. These permeation characteristics imply the possibility of future practical use of the amorphous alloys as the hydrogen permeable membrane. The thickness and compositional variations of sputtered overlayer were measured by using FE-SEM and AES, respectively, to examine the surface characteristics of Pd-coated membranes. The high-quality overlayer was achieved successfully by RF sputtering method.

Original languageEnglish
Title of host publicationEco-Materials Processing and Design VII - Proceedings of the Conference of the 7th International Symposium on Eco-Materials Processing and Design, ISEPD-7
Pages810-813
Number of pages4
Publication statusPublished - 2006 Dec 1
Event7th International Symposium on Eco-Materials Processing and Design, ISEPD-7 - Chengdu, China
Duration: 2006 Jan 82006 Jan 11

Publication series

NameMaterials Science Forum
Volume510-511
ISSN (Print)0255-5476

Other

Other7th International Symposium on Eco-Materials Processing and Design, ISEPD-7
CountryChina
CityChengdu
Period06/1/806/1/11

Fingerprint

Amorphous alloys
Permeation
Hydrogen
membranes
Membranes
hydrogen
permeability
Palladium
palladium
hydrogen atoms
Sputtering
sputtering
scanning electron microscopy
temperature
Fluxes
Atoms
Temperature
Scanning electron microscopy

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Kim, K., Kim, K., Kim, Y. C., Lee, D. Y., & Kim, D. H. (2006). Hydrogen permeation and surface characteristics of Pd-coated Ni-Nb-Ta amorphous alloy membrane. In Eco-Materials Processing and Design VII - Proceedings of the Conference of the 7th International Symposium on Eco-Materials Processing and Design, ISEPD-7 (pp. 810-813). (Materials Science Forum; Vol. 510-511).
Kim, Kwangdong ; Kim, Kibae ; Kim, Y. C. ; Lee, D. Y. ; Kim, D. H. / Hydrogen permeation and surface characteristics of Pd-coated Ni-Nb-Ta amorphous alloy membrane. Eco-Materials Processing and Design VII - Proceedings of the Conference of the 7th International Symposium on Eco-Materials Processing and Design, ISEPD-7. 2006. pp. 810-813 (Materials Science Forum).
@inproceedings{e4dff65def1c4771a2875eecde526ee3,
title = "Hydrogen permeation and surface characteristics of Pd-coated Ni-Nb-Ta amorphous alloy membrane",
abstract = "The hydrogen permeability of a palladium coated Ni60Nb 30Ta10 amorphous alloy was examined in the temperature range of 573-673 K and pressures up to 0.6 MPa. Commercialized Pd 60Cu40 alloy membranes were also evaluated in the same manner. The permeated hydrogen flux increased with increasing temperature and difference in the square-roots of hydrogen pressures on both sides of the membrane. It indicates that the diffusion of hydrogen atoms is the main factor for the hydrogen permeation in this alloy. The maximum hydrogen permeability of the Ni60Nb30Ta10 glassy alloy was 4.1×10-8 [mol/m as Pa1/2] at 673 K, which was much higher than that of Pd60Cu40 membranes measured under the same conditions, 1.9×10-8 [mol/m s Pa1/2] at 673 K. These permeation characteristics imply the possibility of future practical use of the amorphous alloys as the hydrogen permeable membrane. The thickness and compositional variations of sputtered overlayer were measured by using FE-SEM and AES, respectively, to examine the surface characteristics of Pd-coated membranes. The high-quality overlayer was achieved successfully by RF sputtering method.",
author = "Kwangdong Kim and Kibae Kim and Kim, {Y. C.} and Lee, {D. Y.} and Kim, {D. H.}",
year = "2006",
month = "12",
day = "1",
language = "English",
isbn = "0878499954",
series = "Materials Science Forum",
pages = "810--813",
booktitle = "Eco-Materials Processing and Design VII - Proceedings of the Conference of the 7th International Symposium on Eco-Materials Processing and Design, ISEPD-7",

}

Kim, K, Kim, K, Kim, YC, Lee, DY & Kim, DH 2006, Hydrogen permeation and surface characteristics of Pd-coated Ni-Nb-Ta amorphous alloy membrane. in Eco-Materials Processing and Design VII - Proceedings of the Conference of the 7th International Symposium on Eco-Materials Processing and Design, ISEPD-7. Materials Science Forum, vol. 510-511, pp. 810-813, 7th International Symposium on Eco-Materials Processing and Design, ISEPD-7, Chengdu, China, 06/1/8.

Hydrogen permeation and surface characteristics of Pd-coated Ni-Nb-Ta amorphous alloy membrane. / Kim, Kwangdong; Kim, Kibae; Kim, Y. C.; Lee, D. Y.; Kim, D. H.

Eco-Materials Processing and Design VII - Proceedings of the Conference of the 7th International Symposium on Eco-Materials Processing and Design, ISEPD-7. 2006. p. 810-813 (Materials Science Forum; Vol. 510-511).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Hydrogen permeation and surface characteristics of Pd-coated Ni-Nb-Ta amorphous alloy membrane

AU - Kim, Kwangdong

AU - Kim, Kibae

AU - Kim, Y. C.

AU - Lee, D. Y.

AU - Kim, D. H.

PY - 2006/12/1

Y1 - 2006/12/1

N2 - The hydrogen permeability of a palladium coated Ni60Nb 30Ta10 amorphous alloy was examined in the temperature range of 573-673 K and pressures up to 0.6 MPa. Commercialized Pd 60Cu40 alloy membranes were also evaluated in the same manner. The permeated hydrogen flux increased with increasing temperature and difference in the square-roots of hydrogen pressures on both sides of the membrane. It indicates that the diffusion of hydrogen atoms is the main factor for the hydrogen permeation in this alloy. The maximum hydrogen permeability of the Ni60Nb30Ta10 glassy alloy was 4.1×10-8 [mol/m as Pa1/2] at 673 K, which was much higher than that of Pd60Cu40 membranes measured under the same conditions, 1.9×10-8 [mol/m s Pa1/2] at 673 K. These permeation characteristics imply the possibility of future practical use of the amorphous alloys as the hydrogen permeable membrane. The thickness and compositional variations of sputtered overlayer were measured by using FE-SEM and AES, respectively, to examine the surface characteristics of Pd-coated membranes. The high-quality overlayer was achieved successfully by RF sputtering method.

AB - The hydrogen permeability of a palladium coated Ni60Nb 30Ta10 amorphous alloy was examined in the temperature range of 573-673 K and pressures up to 0.6 MPa. Commercialized Pd 60Cu40 alloy membranes were also evaluated in the same manner. The permeated hydrogen flux increased with increasing temperature and difference in the square-roots of hydrogen pressures on both sides of the membrane. It indicates that the diffusion of hydrogen atoms is the main factor for the hydrogen permeation in this alloy. The maximum hydrogen permeability of the Ni60Nb30Ta10 glassy alloy was 4.1×10-8 [mol/m as Pa1/2] at 673 K, which was much higher than that of Pd60Cu40 membranes measured under the same conditions, 1.9×10-8 [mol/m s Pa1/2] at 673 K. These permeation characteristics imply the possibility of future practical use of the amorphous alloys as the hydrogen permeable membrane. The thickness and compositional variations of sputtered overlayer were measured by using FE-SEM and AES, respectively, to examine the surface characteristics of Pd-coated membranes. The high-quality overlayer was achieved successfully by RF sputtering method.

UR - http://www.scopus.com/inward/record.url?scp=33847286222&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33847286222&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:33847286222

SN - 0878499954

SN - 9780878499953

T3 - Materials Science Forum

SP - 810

EP - 813

BT - Eco-Materials Processing and Design VII - Proceedings of the Conference of the 7th International Symposium on Eco-Materials Processing and Design, ISEPD-7

ER -

Kim K, Kim K, Kim YC, Lee DY, Kim DH. Hydrogen permeation and surface characteristics of Pd-coated Ni-Nb-Ta amorphous alloy membrane. In Eco-Materials Processing and Design VII - Proceedings of the Conference of the 7th International Symposium on Eco-Materials Processing and Design, ISEPD-7. 2006. p. 810-813. (Materials Science Forum).