Highly porous alumina cellular ceramics bonded by in-situ formed mullite prepared by gelation-assisted Al2O3–Si particle-stabilized foams

2020 ◽  
Vol 46 (8) ◽  
pp. 12282-12287
Author(s):  
Jingjing Liu ◽  
Bo Ren ◽  
Yedong Rong ◽  
Yi Zhao ◽  
Lu Wang ◽  
...  
Keyword(s):  
2009 ◽  
Vol 31 (7) ◽  
pp. 775-783 ◽  
Author(s):  
A. Khalil ◽  
C. Aponte ◽  
R. Zhang ◽  
T. Davisson ◽  
I. Dickey ◽  
...  

1996 ◽  
Vol 431 ◽  
Author(s):  
Mark C. Lovallo ◽  
Laura Boudreau ◽  
Michael Tsapatsis

AbstractThe influence of microstructure on the properties of zeolite films and means of controlling the former (film thickness, crystal orientation) are the theme of this report. Firstly, the formation of thin silicalite films from regrowth of nanocrystalline silicalite/alumina composite films is presented. The crystallites at the intergrown top layer are oriented with their straight channels parallel to the substrate film. The membranes show H2/N2 selectivities of about 60 at 150 °C.This high selectivity is attributed to the orientation of the separating layer. Secondly, the formation of oriented multilayers of zeolite L crystallites by alternating dippjpg of a glass substrate in a bohemite and a “plate-like” zeolite L suspensions is illustrated. Finally, continuous films of zeolite NaA are prepared on various substrates (glass, porous and nonporous alumina) using in situ growth from homogeneous solutions. The films exhibit good adhesion to the substrates. The films prepared on porous alumina disks show He/N2 and O2/N2 selectivities of 10 and 0.4 respectively at 120 °C.


Small ◽  
2019 ◽  
Vol 15 (25) ◽  
pp. 1970132
Author(s):  
Ranjith Kumar Kankala ◽  
Jia Zhao ◽  
Chen‐Guang Liu ◽  
Xiao‐Jie Song ◽  
Da‐Yun Yang ◽  
...  

2019 ◽  
Vol 45 (10) ◽  
pp. 13509-13517 ◽  
Author(s):  
Muto Daimu ◽  
Shinobu Hashimoto ◽  
Yusuke Daiko ◽  
Sawao Honda ◽  
Yuji Iwamoto

2012 ◽  
Vol 557-559 ◽  
pp. 1679-1682
Author(s):  
Jin Liang ◽  
Hong Chen ◽  
You Hua Fan ◽  
Zhi Qing Yuan

A facile and novel method was developed to fabricate highly porous CeO2 surface on aluminum via a combination of homogeneous precipitation method and in situ growth process. After the introduction of CeO2 film, aluminum exhibited excellent superhydrophobicity with contact angle of 152.9±1.5 o and a sliding angle of 5 o. SEM image of the film showed that the resulting surface exhibits a hierarchical micro-Superscript text and nanostructure, which comprised of nanoleaves that grew perpendicular to the substrate and interleaved together to form a highly porous structure. This porous architecture, along with the low surface energy renders the aluminum superhydrophobicity.


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