Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 372-378 |
| Journal | Separation and purification technology |
| Volume | 147 |
| DOIs | |
| Publication status | Published - 2015 |
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Keywords
- METIS-311947
- IR-97371
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Facile synthesis of zirconia doped hybrid organic inorganic silica membranes. / ten Hove, Marcel; Nijmeijer, Arian; Winnubst, Aloysius J.A.
In: Separation and purification technology, Vol. 147, 2015, p. 372-378.Research output: Contribution to journal › Article › Academic › peer-review
TY - JOUR
T1 - Facile synthesis of zirconia doped hybrid organic inorganic silica membranes
AU - ten Hove, Marcel
AU - Nijmeijer, Arian
AU - Winnubst, Aloysius J.A.
PY - 2015
Y1 - 2015
N2 - Hybrid organic inorganic silica membranes are interesting candidates for gas-separation applications due to their excellent hydrothermal stability. However, up to now these membranes lack the separation performance required to separate hydrogen from carbon dioxide. In this work a procedure for doping zirconia into the hybrid silica matrix is reported, resulting in an improved H2/CO2 permselective membrane compared with non-doped hybrid silica membranes. Zirconia doped 1,2-bis(triethoxysilyl)ethane (Zr-BTESE) was synthesized by sol–gel chemistry, using zirconyl nitrate as the zirconium source. By optimization of the sol reaction conditions (i.e. reaction time and temperature) a homogenous sol was obtained. Defect-free membranes were obtained by adjusting the concentration of the dip-coating solution. The doped membranes showed a slight decrease in hydrogen permeance from 4.4 × 10−7 to 1.8 × 10−7 mol m−2 s−1 Pa−1 as compared to an undoped BTESE membrane, but a large increase in H2/CO2 (from 4 to 16) and H2/N2 (from 12 to 100) permselectivity was observed.
AB - Hybrid organic inorganic silica membranes are interesting candidates for gas-separation applications due to their excellent hydrothermal stability. However, up to now these membranes lack the separation performance required to separate hydrogen from carbon dioxide. In this work a procedure for doping zirconia into the hybrid silica matrix is reported, resulting in an improved H2/CO2 permselective membrane compared with non-doped hybrid silica membranes. Zirconia doped 1,2-bis(triethoxysilyl)ethane (Zr-BTESE) was synthesized by sol–gel chemistry, using zirconyl nitrate as the zirconium source. By optimization of the sol reaction conditions (i.e. reaction time and temperature) a homogenous sol was obtained. Defect-free membranes were obtained by adjusting the concentration of the dip-coating solution. The doped membranes showed a slight decrease in hydrogen permeance from 4.4 × 10−7 to 1.8 × 10−7 mol m−2 s−1 Pa−1 as compared to an undoped BTESE membrane, but a large increase in H2/CO2 (from 4 to 16) and H2/N2 (from 12 to 100) permselectivity was observed.
KW - METIS-311947
KW - IR-97371
U2 - 10.1016/j.seppur.2014.12.033
DO - 10.1016/j.seppur.2014.12.033
M3 - Article
VL - 147
SP - 372
EP - 378
JO - Separation and purification technology
JF - Separation and purification technology
SN - 1383-5866
ER -