Features of colloidal silica deposits dip coated onto porous alumina membranes from aqueous suspensions

2021 ◽  
Vol 45 ◽  
pp. 100526
Author(s):  
Rahul Sathyanath ◽  
A. Aarthi ◽  
Sreeram K. Kalpathy
Keyword(s):  
Colloidal Silica ◽  
Porous Alumina ◽  
Aqueous Suspensions ◽  
Alumina Membranes

Structural and chemical modification of porous alumina membranes

2009 ◽  
Vol 126 (1-2) ◽  
pp. 87-94 ◽  
Author(s):  
Leonora Velleman ◽  
Gerry Triani ◽  
Peter J. Evans ◽  
Joe G. Shapter ◽  
Dusan Losic
Keyword(s):  
Chemical Modification ◽  
Porous Alumina ◽  
Alumina Membranes

Investigation of transmission of 1.7-MeV He+ beams through porous alumina membranes

2014 ◽  
Vol 40 (3) ◽  
pp. 219-221 ◽  
Author(s):  
A. A. Shemukhin ◽  
E. N. Muratova
Keyword(s):  
Porous Alumina ◽  
Alumina Membranes

scholarly journals Separating Hydrogen From Coal Gasification Gases With Alumina Membranes

1991 ◽  
Author(s):  
B. Z. Egan ◽  
D. E. Fain ◽  
G. E. Roettger ◽  
D. E. White
Keyword(s):  
Carbon Dioxide ◽  
Coal Gasification ◽  
Process Development ◽  
Porous Alumina ◽  
Mean Value ◽  
Knudsen Flow ◽  
Gasification Process ◽  
Alumina Membranes ◽  
Separation Factors ◽  
Membrane Permeabilities

Synthesis gas produced in coal gasification processes contains hydrogen, along with carbon monoxide, carbon dioxide, hydrogen sulfide, water, nitrogen, and other gases, depending on the particular gasification process. Development of membrane technology to separate the hydrogen from the raw gas at the high operating temperatures and pressures near exit gas conditions would improve the efficiency of the process. Tubular porous alumina membranes with mean pore radii ranging from about 9 to 22 A have been fabricated and characterized. Based on the results of hydrostatic tests, the burst strength of the membranes ranged from 800 to 1600 psig, with a mean value of about 1300 psig. These membranes were evaluated for separating hydrogen and other gases. Tests of membrane permeabilities were made with helium, nitrogen, and carbon dioxide. Measurements were made at room temperature in the pressure range of 15 to 589 psi. In general, the relative gas permeabilities correlated qualitatively with a Knudsen flow mechanism; however, other gas transport mechanisms such as surface adsorption may also be involved. Efforts are under way to fabricate membranes having still smaller pores. At smaller pore sizes, higher separation factors are expected from molecular sieving effects.

scholarly journals Obtaining of ceramic porous alumina membranes

2020 ◽  
pp. 6-19
Author(s):  
Denis A. Gurianov ◽  
◽  
Gulnara A. Voronova
Keyword(s):  
Porous Alumina ◽  
Alumina Membranes

scholarly journals Porous alumina membranes with branched nanopores as templates for fabrication of Y-shaped nanowire arrays

2012 ◽  
Vol 16 (11) ◽  
pp. 3611-3619 ◽  
Author(s):  
Leszek Zaraska ◽  
Elżbieta Kurowska ◽  
Grzegorz D. Sulka ◽  
Marian Jaskuła
Keyword(s):  
Porous Alumina ◽  
Nanowire Arrays ◽  
Alumina Membranes

Preparation and thermal stability of porous alumina membranes with nano-pore arrays

2009 ◽  
Vol 98 (4) ◽  
pp. 745-749 ◽  
Author(s):  
Xue Hua Wang ◽  
Cheng Yong Li ◽  
Gui Chen ◽  
Lei He ◽  
Hong Cao
Keyword(s):  
Thermal Stability ◽  
Porous Alumina ◽  
Alumina Membranes ◽  
Thermal Stability Of

Modification of Porous Alumina Membranes Using Al2O3Atomic Layer Controlled Deposition

1997 ◽  
Vol 9 (3) ◽  
pp. 707-714 ◽  
Author(s):  
A. W. Ott ◽  
J. W. Klaus ◽  
J. M. Johnson ◽  
S. M. George ◽  
K. C. McCarley ◽  
...  
Keyword(s):  
Porous Alumina ◽  
Alumina Membranes ◽  
Controlled Deposition

Restrictions of Si-based Ge nanodots from porous alumina membranes

2013 ◽  
Vol 60 ◽  
pp. 73-82 ◽  
Author(s):  
Wenbo Zhan ◽  
Yourui Huangfu ◽  
Guqiao Ding ◽  
Hui Ye
Keyword(s):  
Porous Alumina ◽  
Alumina Membranes
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