Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Krenar Shqau is active.

Publication


Featured researches published by Krenar Shqau.


Langmuir | 2010

Synthesis of Ultrathin Zeolite Y Membranes and their Application for Separation of Carbon Dioxide and Nitrogen Gases

Jeremy White; Prabir K. Dutta; Krenar Shqau; H. Verweij

Synthesis of zeolite Y membranes from submicrometer (>100 nm) and nano seed (<100 nm) crystals on alumina supports was examined and the separation characteristics of these membranes for CO(2) and N(2) were studied. Two secondary growth solutions were examined, one for a rapid growth (hours) and one for a slower growth process (days). Membranes formed from the rapid growth solution resulted in 2-2.5 microm thickness, while for the slower growth solution, a dense membrane of 350-600 nm thickness was formed, covered by a 25 microm porous zeolite layer. With the nano seeds as the seeding layer, no membrane was formed. A mechanism involving seed dissolution to initiate membrane formation is concluded. The separation characteristics of membranes for CO(2)/N(2) separation were similar, with very high selectivities for separation (alpha(CO(2),N(2)) > 500). The thicker membrane had lower permeance. By investigating both single gas and mixed gas permeances, strong evidence for a percolative type separation process is obtained.


Advances in Science and Technology | 2006

Nanostructured Ceramic Thin Films and Membranes by Wet Chemical Processing Methods

Jing Yu Shi; Matthew L. Mottern; Krenar Shqau; H. Verweij

Nanostructured ceramic thin films and membranes are used for protective or functional purposes and prepared on dense or porous substrate materials. Wet chemical methods enable cheap, low-temperature, mass-scale manufacturing routes. They produce fine-grained porous and dense micro-structures that cannot be realized otherwise. In wet-chemical processing, clean nanoparticle dispersions are deposited on the substrate at, primarily, ambient conditions. The deposition is followed by a (rapid) thermal processing treatment to remove liquids and organic additives, to convert precursors to the target composition, and to establish the final porous and dense micro-structure. In the synthesis of precursor dispersions it is very important to obtain nanoparticles with a near-isometric shape and a fairly narrow particle size distribution, without the formation of secondary (agglomerate) structures. In particular the latter requires careful control of solution and interfacial chemistry to achieve proper colloidal stability, during and after the synthesis process. Characterization of coating integrity, defect morphology and defect population is done by decoration methods, microscopy, ellipsometry and statistical methods that employ membrane transport properties.


Microporous and Mesoporous Materials | 2007

Zeta potential measurements of zeolite Y: Application in homogeneous deposition of particle coatings

Tatsiana Kuzniatsova; Yanghee Kim; Krenar Shqau; Prabir K. Dutta; H. Verweij


Materials Chemistry and Physics | 2009

Solvothermal synthesis of crystalline nickel oxide nanoparticles

Elvin R. Beach; Krenar Shqau; Samantha E. Brown; S Rozeveld; Patricia A. Morris


Journal of the American Ceramic Society | 2006

Preparation and Properties of Porous α‐Al2O3 Membrane Supports

Krenar Shqau; Matthew L. Mottern; D. Yu; H. Verweij


Journal of Membrane Science | 2011

Post-synthesis defect abatement of inorganic membranes for gas separation

W.V. Chiu; I.-S. Park; Krenar Shqau; J.C. White; M.C. Schillo; W. S. Winston Ho; Prabir K. Dutta; Hendrik Verweij


JOM | 2009

Supported inorganic membranes: Promises and challenges

Lanlin Zhang; In-Soo Park; Krenar Shqau; W. S. Winston Ho; H. Verweij


Archive | 2011

Systems, compositions, and methods for fluid purification

W. S. Winston Ho; Hendrik Verweij; Krenar Shqau; Kartik Ramasubramanian


Materials Letters | 2008

Solvothermal synthesis of nanostructured NiO, ZnO and CO3O4 microspheres

Elvin R. Beach; Samantha E. Brown; Krenar Shqau; Matthew L. Mottern; Zack Warchol; Patricia A. Morris


Journal of Membrane Science | 2008

Micro-structural optimization of supported γ-alumina membranes

Tatsiana Kuzniatsova; Matthew L. Mottern; Krenar Shqau; D. Yu; Hendrik Verweij

Collaboration


Dive into the Krenar Shqau's collaboration.

Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar

D. Yu

Ohio State University

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Gokhan Mumcu

University of South Florida

View shared research outputs
Researchain Logo
Decentralizing Knowledge