On stability and performance of highly c-oriented columnar AlPO 4-5 and CoAPO-5 membranes

Jared A. Stoeger; Charitomeni M. Veziri; Miguel Palomino; Avelino Corma; Nick K. Kanellopoulos; Michael Tsapatsis; Georgios N. Karanikolos

doi:10.1016/j.micromeso.2011.06.028

On stability and performance of highly c-oriented columnar AlPO ₄-5 and CoAPO-5 membranes

Jared A. Stoeger, Charitomeni M. Veziri, Miguel Palomino, Avelino Corma, Nick K. Kanellopoulos, Michael Tsapatsis, Georgios N. Karanikolos

Chemical Engineering and Materials Science

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

Continuous films comprised of highly c-oriented aluminophosphate AlPO ₄-5 or cobalt-substituted AlPO₄-5 (CoAPO-5) were grown on porous supports and subjected to heat treatment in order to investigate the potential for membrane applications. A study in the early stages of in-plane crystalline intergrowth revealed a potential mechanism for flake-like crystal formation between the original oriented columnar crystals. Variations in metal substitution (AlPO₄-5, CoAPO-5), support (glass, silicon, porous alumina), and calcination method (conventional, rapid thermal processing) were chosen to examine the conditions by which structural integrity was compromised following secondary (or tertiary) growth, resulting in reduced membrane functionality. Through the use of rapid thermal processing, the structure debilitation could be partially avoided. The membrane quality was inspected through pervaporation measurements consisting of a liquid hydrocarbon feed of n-heptane and 1,3,5-triisopropylbenzene. By investigating the effect of template removal on the oriented, columnar crystalline structure, useful insight is provided into the potential for the membranes to participate in applications such as molecular separations, catalysis, or host-guest assemblies.

Original language	English (US)
Pages (from-to)	286-294
Number of pages	9
Journal	Microporous and Mesoporous Materials
Volume	147
Issue number	1
DOIs	https://doi.org/10.1016/j.micromeso.2011.06.028
State	Published - Jan 2012

Bibliographical note

Funding Information:
Support by the American Chemical Society (ACS-PRF) and the European Community through the FP7 NextGTL project and a Marie Curie International Reintegration Grant (FP7, Grant agreement No. 210947 ) is greatly appreciated. M.P. thanks CSIC for a JAE doctoral fellowship. We would like to thank Kumar Varoon for assistance with membrane sectioning and imaging using the focused ion beam technique. Parts of this work were carried out in the Characterization Facility on the campus of the University of Minnesota-Twin Cities, which receives partial support from NSF through the MRSEC program.

Keywords

AlPO-5
CoAPO-5
Membrane
Pervaporation
Rapid thermal processing

Publisher link

10.1016/j.micromeso.2011.06.028

Find It

Find It at U of M Libraries

Cite this

@article{05a25b74bf254fd6b44aabae6b361db9,

title = "On stability and performance of highly c-oriented columnar AlPO 4-5 and CoAPO-5 membranes",

abstract = "Continuous films comprised of highly c-oriented aluminophosphate AlPO 4-5 or cobalt-substituted AlPO4-5 (CoAPO-5) were grown on porous supports and subjected to heat treatment in order to investigate the potential for membrane applications. A study in the early stages of in-plane crystalline intergrowth revealed a potential mechanism for flake-like crystal formation between the original oriented columnar crystals. Variations in metal substitution (AlPO4-5, CoAPO-5), support (glass, silicon, porous alumina), and calcination method (conventional, rapid thermal processing) were chosen to examine the conditions by which structural integrity was compromised following secondary (or tertiary) growth, resulting in reduced membrane functionality. Through the use of rapid thermal processing, the structure debilitation could be partially avoided. The membrane quality was inspected through pervaporation measurements consisting of a liquid hydrocarbon feed of n-heptane and 1,3,5-triisopropylbenzene. By investigating the effect of template removal on the oriented, columnar crystalline structure, useful insight is provided into the potential for the membranes to participate in applications such as molecular separations, catalysis, or host-guest assemblies.",

keywords = "AlPO-5, CoAPO-5, Membrane, Pervaporation, Rapid thermal processing",

author = "Stoeger, {Jared A.} and Veziri, {Charitomeni M.} and Miguel Palomino and Avelino Corma and Kanellopoulos, {Nick K.} and Michael Tsapatsis and Karanikolos, {Georgios N.}",

note = "Funding Information: Support by the American Chemical Society (ACS-PRF) and the European Community through the FP7 NextGTL project and a Marie Curie International Reintegration Grant (FP7, Grant agreement No. 210947 ) is greatly appreciated. M.P. thanks CSIC for a JAE doctoral fellowship. We would like to thank Kumar Varoon for assistance with membrane sectioning and imaging using the focused ion beam technique. Parts of this work were carried out in the Characterization Facility on the campus of the University of Minnesota-Twin Cities, which receives partial support from NSF through the MRSEC program.",

year = "2012",

month = jan,

doi = "10.1016/j.micromeso.2011.06.028",

language = "English (US)",

volume = "147",

pages = "286--294",

journal = "Microporous and Mesoporous Materials",

issn = "1387-1811",

number = "1",

}

TY - JOUR

T1 - On stability and performance of highly c-oriented columnar AlPO 4-5 and CoAPO-5 membranes

AU - Stoeger, Jared A.

AU - Veziri, Charitomeni M.

AU - Palomino, Miguel

AU - Corma, Avelino

AU - Kanellopoulos, Nick K.

AU - Tsapatsis, Michael

AU - Karanikolos, Georgios N.

N1 - Funding Information: Support by the American Chemical Society (ACS-PRF) and the European Community through the FP7 NextGTL project and a Marie Curie International Reintegration Grant (FP7, Grant agreement No. 210947 ) is greatly appreciated. M.P. thanks CSIC for a JAE doctoral fellowship. We would like to thank Kumar Varoon for assistance with membrane sectioning and imaging using the focused ion beam technique. Parts of this work were carried out in the Characterization Facility on the campus of the University of Minnesota-Twin Cities, which receives partial support from NSF through the MRSEC program.

PY - 2012/1

Y1 - 2012/1

N2 - Continuous films comprised of highly c-oriented aluminophosphate AlPO 4-5 or cobalt-substituted AlPO4-5 (CoAPO-5) were grown on porous supports and subjected to heat treatment in order to investigate the potential for membrane applications. A study in the early stages of in-plane crystalline intergrowth revealed a potential mechanism for flake-like crystal formation between the original oriented columnar crystals. Variations in metal substitution (AlPO4-5, CoAPO-5), support (glass, silicon, porous alumina), and calcination method (conventional, rapid thermal processing) were chosen to examine the conditions by which structural integrity was compromised following secondary (or tertiary) growth, resulting in reduced membrane functionality. Through the use of rapid thermal processing, the structure debilitation could be partially avoided. The membrane quality was inspected through pervaporation measurements consisting of a liquid hydrocarbon feed of n-heptane and 1,3,5-triisopropylbenzene. By investigating the effect of template removal on the oriented, columnar crystalline structure, useful insight is provided into the potential for the membranes to participate in applications such as molecular separations, catalysis, or host-guest assemblies.

AB - Continuous films comprised of highly c-oriented aluminophosphate AlPO 4-5 or cobalt-substituted AlPO4-5 (CoAPO-5) were grown on porous supports and subjected to heat treatment in order to investigate the potential for membrane applications. A study in the early stages of in-plane crystalline intergrowth revealed a potential mechanism for flake-like crystal formation between the original oriented columnar crystals. Variations in metal substitution (AlPO4-5, CoAPO-5), support (glass, silicon, porous alumina), and calcination method (conventional, rapid thermal processing) were chosen to examine the conditions by which structural integrity was compromised following secondary (or tertiary) growth, resulting in reduced membrane functionality. Through the use of rapid thermal processing, the structure debilitation could be partially avoided. The membrane quality was inspected through pervaporation measurements consisting of a liquid hydrocarbon feed of n-heptane and 1,3,5-triisopropylbenzene. By investigating the effect of template removal on the oriented, columnar crystalline structure, useful insight is provided into the potential for the membranes to participate in applications such as molecular separations, catalysis, or host-guest assemblies.

KW - AlPO-5

KW - CoAPO-5

KW - Membrane

KW - Pervaporation

KW - Rapid thermal processing

UR - http://www.scopus.com/inward/record.url?scp=80052940069&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80052940069&partnerID=8YFLogxK

U2 - 10.1016/j.micromeso.2011.06.028

DO - 10.1016/j.micromeso.2011.06.028

M3 - Article

AN - SCOPUS:80052940069

SN - 1387-1811

VL - 147

SP - 286

EP - 294

JO - Microporous and Mesoporous Materials

JF - Microporous and Mesoporous Materials

IS - 1

ER -