Measurement and modeling of hydrogen transport through high-flux Pd membranes

F.C. Gielens; H.D. Tong; M.A.G. Vorstman; J.T.F. Keurentjes

doi:10.1016/j.memsci.2006.11.029

Measurement and modeling of hydrogen transport through high-flux Pd membranes

F.C. Gielens
, H.D. Tong
, M.A.G. Vorstman
, J.T.F. Keurentjes

Research output: Contribution to journal › Article › Academic › peer-review

46 Citations (Scopus)

154 Downloads (Pure)

Abstract

The permeability of H₂-selective palladium membranes fabricated with microsystem technology has been studied. The permeation experiments have been carried out at temperatures between 623 and 873 K at H₂ feed partial pressures of 0.2–1.0 bar. At 823 K, a permeance based on the free membrane area of 18 mol H₂/m² s bar^0.58 has been measured for a Pd membrane with a thickness of 0.5 μm. From the permeation experiments the rate determining transport step and the stability of the membranes have been determined. At 873 K the H₂/He selectivity decreases rapidly, indicating the formation of pinholes at higher temperatures. From a combination of experiments and computer simulations the limiting transport step has been determined to be H-atom diffusion through the membrane at elevated temperatures and H₂ surface reactions at the retentate side at lower temperatures

Original language	English
Pages (from-to)	15-25
Number of pages	11
Journal	Journal of membrane science
Volume	289
Issue number	1-2
DOIs	https://doi.org/10.1016/j.memsci.2006.11.029
Publication status	Published - 18 Feb 2007

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Hydrogen permeation
Steam activation
Microsystem technology
Limiting transport step
Surface contamination
n/a OA procedure

Access to Document

10.1016/j.memsci.2006.11.029

Cite this

@article{79a509fce96e4ee8b758157f686f9726,

title = "Measurement and modeling of hydrogen transport through high-flux Pd membranes",

abstract = "The permeability of H2-selective palladium membranes fabricated with microsystem technology has been studied. The permeation experiments have been carried out at temperatures between 623 and 873 K at H2 feed partial pressures of 0.2–1.0 bar. At 823 K, a permeance based on the free membrane area of 18 mol H2/m2 s bar0.58 has been measured for a Pd membrane with a thickness of 0.5 μm. From the permeation experiments the rate determining transport step and the stability of the membranes have been determined. At 873 K the H2/He selectivity decreases rapidly, indicating the formation of pinholes at higher temperatures. From a combination of experiments and computer simulations the limiting transport step has been determined to be H-atom diffusion through the membrane at elevated temperatures and H2 surface reactions at the retentate side at lower temperatures",

keywords = "Hydrogen permeation, Steam activation, Microsystem technology, Limiting transport step, Surface contamination, n/a OA procedure",

author = "F.C. Gielens and H.D. Tong and M.A.G. Vorstman and J.T.F. Keurentjes",

year = "2007",

month = feb,

day = "18",

doi = "10.1016/j.memsci.2006.11.029",

language = "English",

volume = "289",

pages = "15--25",

journal = "Journal of membrane science",

issn = "0376-7388",

publisher = "Elsevier",

number = "1-2",

}

TY - JOUR

T1 - Measurement and modeling of hydrogen transport through high-flux Pd membranes

AU - Gielens, F.C.

AU - Tong, H.D.

AU - Vorstman, M.A.G.

AU - Keurentjes, J.T.F.

PY - 2007/2/18

Y1 - 2007/2/18

N2 - The permeability of H2-selective palladium membranes fabricated with microsystem technology has been studied. The permeation experiments have been carried out at temperatures between 623 and 873 K at H2 feed partial pressures of 0.2–1.0 bar. At 823 K, a permeance based on the free membrane area of 18 mol H2/m2 s bar0.58 has been measured for a Pd membrane with a thickness of 0.5 μm. From the permeation experiments the rate determining transport step and the stability of the membranes have been determined. At 873 K the H2/He selectivity decreases rapidly, indicating the formation of pinholes at higher temperatures. From a combination of experiments and computer simulations the limiting transport step has been determined to be H-atom diffusion through the membrane at elevated temperatures and H2 surface reactions at the retentate side at lower temperatures

AB - The permeability of H2-selective palladium membranes fabricated with microsystem technology has been studied. The permeation experiments have been carried out at temperatures between 623 and 873 K at H2 feed partial pressures of 0.2–1.0 bar. At 823 K, a permeance based on the free membrane area of 18 mol H2/m2 s bar0.58 has been measured for a Pd membrane with a thickness of 0.5 μm. From the permeation experiments the rate determining transport step and the stability of the membranes have been determined. At 873 K the H2/He selectivity decreases rapidly, indicating the formation of pinholes at higher temperatures. From a combination of experiments and computer simulations the limiting transport step has been determined to be H-atom diffusion through the membrane at elevated temperatures and H2 surface reactions at the retentate side at lower temperatures

KW - Hydrogen permeation

KW - Steam activation

KW - Microsystem technology

KW - Limiting transport step

KW - Surface contamination

KW - n/a OA procedure

U2 - 10.1016/j.memsci.2006.11.029

DO - 10.1016/j.memsci.2006.11.029

M3 - Article

SN - 0376-7388

VL - 289

SP - 15

EP - 25

JO - Journal of membrane science

JF - Journal of membrane science

IS - 1-2

ER -

Measurement and modeling of hydrogen transport through high-flux Pd membranes

Abstract

UN SDGs

Keywords

Access to Document

Fingerprint

Cite this