Membranes and films of zeolite and zeolite-like materials

Chiang, Anthony S.T.; Chao, Kuei Jung

doi:10.1016/s0022-3697(01)00122-6

Cited by 87 publications

(37 citation statements)

References 129 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The combination of electroactive PVDF polymer fibers with zeolite structures seems particularly interesting for tissue engineering and drug delivery applications due to the modification of polymer electrical and thermal properties [16] and the encapsulation efficiency of the zeolites [37]. It has been proven the biocompatibility of PVDF/NaY composite films [21], which also promotes cell response.…”

mentioning

confidence: 99%

Effect of filler content on morphology and physical–chemical characteristics of poly(vinylidene fluoride)/NaY zeolite-filled membranes

et al. 2014

View full text Add to dashboard Cite

Poly(vinylidene fluoride) electrospun membranes have been prepared with different NaY zeolite contents up to 32%wt. Inclusion of zeolites induces an increase of average fiber size from ~200 nm in the pure polymer up to ~500 nm in the composite with 16%wt zeolite content. For higher filler contents, a wider distribution of fibers occurs leading to a broader size distributions between the previous fiber size values.Hydrophobicity of the membranes increases from ~115º water contact angle to ~128º with the addition of the filler and is independent on filler content, indicating a wrapping of the zeolite by the polymer. The water contact angle further increases with fiber alignment up to ~137º. Electrospun membranes are formed with ~80 % of the polymer crystalline phase in the electroactive  phase, independently on the electrospinning processing conditions or filler content. Viability of MC3T3-E1 cells on the composite membranes after 72 h of cell culture indicates the suitability of the membranes for tissue engineering applications.

show abstract

mentioning

confidence: 99%

Effect of filler content on morphology and physical–chemical characteristics of poly(vinylidene fluoride)/NaY zeolite-filled membranes

et al. 2014

View full text Add to dashboard Cite

show abstract

“…[32][33][34][35][36] Inorganic membranes, which possess good thermal stability and chemical inertness, enjoy several important advantages over polymer membranes for many industrial applications. Improvements continue to focus on areas of membrane integrity and manufacturing costs.…”

Section: Inorganic Membranes For H 2 Purificationmentioning

confidence: 99%

Membranes for Hydrogen Purification: An Important Step toward a Hydrogen-Based Economy

Nenoff¹,

Spontak²,

Aberg³

2006

MRS Bull.

View full text Add to dashboard Cite

Production of pure molecular hydrogen is essential to the realization of the proposed “hydrogen economy” that could ultimately provide hydrogen as a clean, renewable source of energy; eliminate the industrialized world's dependence on petroleum; and reduce the generation of greenhouse gases linked to global warming. A crucial step in obtaining pure hydrogen is separating it from other gaseous compounds—mainly CO2—that often accompany hydrogen in industrial chemical reactions. Advanced membrane technology may prove to be the key to the successful, economical production of molecular hydrogen.Size-sieving glassy polymer membranes can separate H2 on the basis of its small size. Alternatively, reverse-selective rubbery polymers can expedite the passage and, hence, removal of CO2 due to its relatively high solubility in such membranes alone or in conjunction with dissociative chemical reactions. Transition-metal membranes and their alloys can adsorb H2 molecules, dissociate the molecules into H atoms for transport through interstitial sites, and subsequently recombine the H atoms to form molecular H2 again on the opposite membrane side. Microporous amorphous silica and zeolite membranes comprising thin films on a multilayer porous support exhibit good sorption selectivity and high diffusion mobilities for H2, leading to high H2 fluxes. Finally, carbon-based membranes, including carbon nanotubes, may be viable for H2 separation on the basis of selective surface flow and molecular sieving. A wide variety of materials challenges exist in hydrogen purification, and the objective of this issue of MRS Bulletin is to address those challenges and their potential solutions from basic principles.

show abstract

“…With a thin zeolite membrane, separation may then be achieved under a steady state condition where adsorption occurs on one side and continuous desorption occurs on the other side. If catalytic reaction processes are operated under a steady state, the integration of a zeolite membrane into a catalytic reactor will be quite attractive [14,15]. To maximize the throughput, the zeolite layer must be very thin, and the detection of zeolite on substrate samples thus becomes difficult.…”

Section: Mfi Zeolite Filmmentioning

confidence: 99%

Structural characterization of porous film materials and the supported metal catalysts by synchrotron powder X-ray diffraction

et al. 2004

View full text Add to dashboard Cite

Membranes and films of zeolite and zeolite-like materials

Cited by 87 publications

References 129 publications

Effect of filler content on morphology and physical–chemical characteristics of poly(vinylidene fluoride)/NaY zeolite-filled membranes

Effect of filler content on morphology and physical–chemical characteristics of poly(vinylidene fluoride)/NaY zeolite-filled membranes

Membranes for Hydrogen Purification: An Important Step toward a Hydrogen-Based Economy

Structural characterization of porous film materials and the supported metal catalysts by synchrotron powder X-ray diffraction

Contact Info

Product

Resources

About