Abstract
Development of high performance hydrogen-selective inorganic membrane has become an important requisite for the production of hydrogen, an energy carrier that could cater the ongoing energy revolution. This paper describes a novel, hybrid method to process high performance hydrogen perm-selective membranes by the rapid CVD modification of a sol-gel silica layer. The initial N2 permeance values through a membrane were brought down by four orders of magnitude to 2.74 × 10-10 mol m-2 s-1 Pa-1 within 5 min of CVD, while maintaining the H2 permeance values as high as 6.43 × 10-7 mol m-2 s-1 Pa-1 (H2/N2 = 2300). It is likely that the reduction in the CVD zone thickness achieved by the presence of pre-existing sol-gel silica layer is the reason for the rapid modification of the pore structure to high performance membranes.
| Original language | English |
|---|---|
| Pages (from-to) | 5-9 |
| Number of pages | 5 |
| Journal | Journal of Membrane Science |
| Volume | 297 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 2007 Jul 5 |
| Externally published | Yes |
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Keywords
- CVD
- Hydrogen separation
- Membrane reactor
- Silica membranes
- Sol-gel
ASJC Scopus subject areas
- Filtration and Separation
- Polymers and Plastics
Cite this
A hybrid processing method for high performance hydrogen-selective silica membranes. / Gopalakrishnan, Suraj; Yoshino, Yasushi; Nomura, Mikihiro; Nair, Balagopal N.; Nakao, Shin Ichi.
In: Journal of Membrane Science, Vol. 297, No. 1-2, 05.07.2007, p. 5-9.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A hybrid processing method for high performance hydrogen-selective silica membranes
AU - Gopalakrishnan, Suraj
AU - Yoshino, Yasushi
AU - Nomura, Mikihiro
AU - Nair, Balagopal N.
AU - Nakao, Shin Ichi
PY - 2007/7/5
Y1 - 2007/7/5
N2 - Development of high performance hydrogen-selective inorganic membrane has become an important requisite for the production of hydrogen, an energy carrier that could cater the ongoing energy revolution. This paper describes a novel, hybrid method to process high performance hydrogen perm-selective membranes by the rapid CVD modification of a sol-gel silica layer. The initial N2 permeance values through a membrane were brought down by four orders of magnitude to 2.74 × 10-10 mol m-2 s-1 Pa-1 within 5 min of CVD, while maintaining the H2 permeance values as high as 6.43 × 10-7 mol m-2 s-1 Pa-1 (H2/N2 = 2300). It is likely that the reduction in the CVD zone thickness achieved by the presence of pre-existing sol-gel silica layer is the reason for the rapid modification of the pore structure to high performance membranes.
AB - Development of high performance hydrogen-selective inorganic membrane has become an important requisite for the production of hydrogen, an energy carrier that could cater the ongoing energy revolution. This paper describes a novel, hybrid method to process high performance hydrogen perm-selective membranes by the rapid CVD modification of a sol-gel silica layer. The initial N2 permeance values through a membrane were brought down by four orders of magnitude to 2.74 × 10-10 mol m-2 s-1 Pa-1 within 5 min of CVD, while maintaining the H2 permeance values as high as 6.43 × 10-7 mol m-2 s-1 Pa-1 (H2/N2 = 2300). It is likely that the reduction in the CVD zone thickness achieved by the presence of pre-existing sol-gel silica layer is the reason for the rapid modification of the pore structure to high performance membranes.
KW - CVD
KW - Hydrogen separation
KW - Membrane reactor
KW - Silica membranes
KW - Sol-gel
UR - http://www.scopus.com/inward/record.url?scp=34248532747&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34248532747&partnerID=8YFLogxK
U2 - 10.1016/j.memsci.2007.03.034
DO - 10.1016/j.memsci.2007.03.034
M3 - Article
VL - 297
SP - 5
EP - 9
JO - Jornal of Membrane Science
JF - Jornal of Membrane Science
SN - 0376-7388
IS - 1-2
ER -