Počet záznamů: 1

Enhanced H2/CH4 and H2/CO2 Separation by Carbon Molecular Sieve Membrane Coated on Titania Modified Alumina Support: Effects of TiO2 Intermediate Layer Preparation Variables on Interfacial Adhesion.

SYSNO ASEP	0458936
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Enhanced H2/CH4 and H2/CO2 Separation by Carbon Molecular Sieve Membrane Coated on Titania Modified Alumina Support: Effects of TiO2 Intermediate Layer Preparation Variables on Interfacial Adhesion.
Tvůrce(i)	Tseng, H.-H. (TW) Wang, Ch.-T. (TW) Zhuang, G.-L. (TW) Uchytil, Petr (UCHP-M)_{RID, SAI} Řezníčková Čermáková, Jiřina (UCHP-M)_RID Setničková, Kateřina (UCHP-M)_{RID, ORCID, SAI}
Zdroj.dok.	Journal of Membrane Science. - : Elsevier - ISSN 0376-7388 Roč. 510, JUL 15 (2016), s. 391-404
Poč.str.	14 s.
Jazyk dok.	eng - angličtina
Země vyd.	NL - Nizozemsko
Klíč. slova	carbon membrane ; intermediate layer ; adhesion
Vědní obor RIV	CI - Průmyslová chemie a chemické inženýrství
Institucionální podpora	UCHP-M - RVO:67985858
UT WOS	000375127300039
EID SCOPUS	84961755118
DOI	10.1016/j.memsci.2016.02.036
Anotace	A new CMS membrane with smaller gas pair H2/CO2 and H2/CH4 separation factor of approximately 8.3 and 726, with an H2 permeability of 600.7 Barrer, was synthesized by coating it on titanium gel-modified alumina supports. After calcination, the titanium gel provided an interconnected nano-network intermediate layer for casting dope to penetrate the support and form an interlocking matrix. By adjusting the hydrolysis-condensation rate using acid catalysts, the intermediate layer structure can be modified, which is beneficial for supporting CMS membrane with high adhesion, but not with an interlocking depth too high to increase mass-transfer resistance. Three adhesion mechanisms are proposed in this study to investigate intrinsic adhesion of the selective layer on the TiO2/Al2O3 composite support. These mechanism are mechanical interlocking, chemical bonding, and adsorption. The relationship between permselectivity and adhesion was also evaluated. An adequate/slight pore penetration with strong mechanical interlocking can enhance adhesion without sacrificing high permeance. The new CMS membrane is a promising candidate for electricity generation/hydrogen production with CO2-capture and oxygen-fuel applications.
Pracoviště	Ústav chemických procesů
Kontakt	Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
Rok sběru	2017

Počet záznamů: 1