Results 31 to 40 of about 217,874 (301)

High-temperature catalyst supports and ceramic membranes: Metastability and particle packing [PDF]

open access: yes, 1997
Parameters and/or processes responsible for the stability of catalyst supports and ceramic membranes are discussed. Two major parameters/processes were identified which are responsible for the stability of sol-gel derived nanostructured oxides at ...
Burggraaf, Anthonie J.   +5 more
core   +2 more sources

A Study of Mechanical Properties of Polymer Composite Membranes with Various Ionic Liquids at Elevated Temperatures

open access: yesMedžiagotyra, 2019
Ionic liquid/sulphonated poly(ether ether ketone) composite membranes were prepared using following ionic liquids: 1,2,3-trimethylimidazolium dimethylphosphate, 1-hexyl-3-methylimidazolium dimethylphosphate, 1-dodecyl-3-methylimidazolium ...
Einars SPRUGIS   +2 more
doaj   +1 more source

A review of nano-confined composite membranes fabricated inside the porous support

open access: yesAdvanced Membranes, 2021
Asymmetric composite membranes composed of a porous support layer and compact selective layer have been used in many fields. Nowadays, most studies focus on the material design and structure optimization of the selective layer.
Xiangqiong Wang   +3 more
doaj   +1 more source

Oxygen permeation through oxygen ion oxide-noble metal dual phase composites [PDF]

open access: yes, 1996
Oxygen permeation behaviour of three composites, yttria-stabilized zirconia-palladium, erbia-stabilized bismuth oxidenoble metal (silver, gold) was studied.
Bouwmeester, H.J.M.   +4 more
core   +2 more sources

Preparation and Bioactivity Properties of a Novel Composite Membrane of Fructose Mediated β-Tricalcium Pyrophosphate/(Polyethylene Glycol/Chitosan) for Guided Tissue Regeneration

open access: yesInternational Journal of Polymer Science, 2015
A novel composite membrane of β-tricalcium pyrophosphate (β-TCP) and fructose- (F-) mediated chitosan/poly(ethylene glycol) (CS/PEG) was prepared by thermally induced phase separation technique.
Jian-Wen Wang   +3 more
doaj   +1 more source

Novel membranes based on cellulose for gas separation and green method for their preparing

open access: yesЖурнал Белорусского государственного университета: Химия, 2019
A «green» method of obtaining gas separation composite membranes from cellulose solutions and its mixtures with chitosan in orthophosphoric acid is proposed for industrial use, and differs from the viscose method of producing cellophane and other known ...
Valeryia B. Filistovich   +6 more
doaj   +1 more source

Antifouling Polyethersulfone-Petrol Soot Nanoparticles Composite Ultrafiltration Membrane for Dye Removal in Wastewater

open access: yesMembranes, 2021
Engineered nanoparticles are known to boost membrane performance in membrane technology. Hitherto, tunable properties that lead to improved hydrophilicity due to increased surface oxygen functionalities upon oxidation of petrol soot have not been fully ...
Nkechi P. Nwafor   +4 more
doaj   +1 more source

Random walk with barriers: Diffusion restricted by permeable membranes

open access: yes, 2010
Restrictions to molecular motion by barriers (membranes) are ubiquitous in biological tissues, porous media and composite materials. A major challenge is to characterize the microstructure of a material or an organism nondestructively using a bulk ...
A Aronovitz   +51 more
core   +1 more source

Review on Blueprint of Designing Anti-Wetting Polymeric Membrane Surfaces for Enhanced Membrane Distillation Performance [PDF]

open access: yes, 2019
Recently, membrane distillation (MD) has emerged as a versatile technology for treating saline water and industrial wastewater. However, the long-term use of MD wets the polymeric membrane and prevents the membrane from working as a semi-permeable ...
Kwon, Young-Nam   +2 more
core   +1 more source

Neutralization with Simultaneous Separation of Metallic Ions from Condensed Water Through Capillary Polypropylene and Cellulose Derivatives

open access: yesProceedings, 2020
An interesting and unpredictable environmental issue raises condensing plants. [...]
Anca -Maria Cimbru   +3 more
doaj   +1 more source

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