Asymmetric supported dense lanthanum tungstate membranes

Vanesa Gil; Jonas Gurauskis; M. -A. Einarsrud

doi:10.1016/j.jeurceramsoc.2014.06.019

Asymmetric supported dense lanthanum tungstate membranes

Vanesa Gil, Jonas Gurauskis, M. -A. Einarsrud

Norwegian University of Science and Technology

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

In this work, a colloidal processing route for dense asymmetric La28-xW4+xO54+3x/2 membranes for hydrogen gas separation applications was established. Dip coating process. conditions were optimized to obtain approximate to 20 mu m thick dense layer supported on a porous substrate of the same composition. Surfactants based on electrosteric stabilization were evaluated to obtain stable suspensions in ethanol. The effect of the quantity and type (rice starch and carbon black) of sacrificial pore formers was evaluated for the porous substrates. Based on our results, samples made with 35-45 vol.% carbon black are the best choice to obtain highly porous supports with the optimum characteristics for the fabrication of asymmetric membranes. (C) 2014 Elsevier Ltd. All rights reserved.

Original language	English
Journal	Journal of the European Ceramic Society
Volume	34
Issue number	15
Pages (from-to)	3783-3790
ISSN	0955-2219
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2014.06.019
Publication status	Published - 2014
Externally published	Yes

Keywords

MATERIALS
ELECTRICAL-CONDUCTIVITY
PERMEATION
ACCURACY
OXIDES
Proton conductor
Dense ceramic membrane
Lanthanum tungstate
Dip coating
Hydrogen

Access to Document

10.1016/j.jeurceramsoc.2014.06.019

OpenUrl availability

Full text

Cite this

@article{87ce3dfa9ee3461a993f351d6e748d0b,

title = "Asymmetric supported dense lanthanum tungstate membranes",

abstract = "In this work, a colloidal processing route for dense asymmetric La28-xW4+xO54+3x/2 membranes for hydrogen gas separation applications was established. Dip coating process. conditions were optimized to obtain approximate to 20 mu m thick dense layer supported on a porous substrate of the same composition. Surfactants based on electrosteric stabilization were evaluated to obtain stable suspensions in ethanol. The effect of the quantity and type (rice starch and carbon black) of sacrificial pore formers was evaluated for the porous substrates. Based on our results, samples made with 35-45 vol.% carbon black are the best choice to obtain highly porous supports with the optimum characteristics for the fabrication of asymmetric membranes. (C) 2014 Elsevier Ltd. All rights reserved.",

keywords = "MATERIALS, ELECTRICAL-CONDUCTIVITY, PERMEATION, ACCURACY, OXIDES, Proton conductor, Dense ceramic membrane, Lanthanum tungstate, Dip coating, Hydrogen",

author = "Vanesa Gil and Jonas Gurauskis and Einarsrud, {M. -A.}",

year = "2014",

doi = "10.1016/j.jeurceramsoc.2014.06.019",

language = "English",

volume = "34",

pages = "3783--3790",

journal = "Journal of the European Ceramic Society",

issn = "0955-2219",

publisher = "Elsevier",

number = "15",

}

TY - JOUR

T1 - Asymmetric supported dense lanthanum tungstate membranes

AU - Gil, Vanesa

AU - Gurauskis, Jonas

AU - Einarsrud, M. -A.

PY - 2014

Y1 - 2014

N2 - In this work, a colloidal processing route for dense asymmetric La28-xW4+xO54+3x/2 membranes for hydrogen gas separation applications was established. Dip coating process. conditions were optimized to obtain approximate to 20 mu m thick dense layer supported on a porous substrate of the same composition. Surfactants based on electrosteric stabilization were evaluated to obtain stable suspensions in ethanol. The effect of the quantity and type (rice starch and carbon black) of sacrificial pore formers was evaluated for the porous substrates. Based on our results, samples made with 35-45 vol.% carbon black are the best choice to obtain highly porous supports with the optimum characteristics for the fabrication of asymmetric membranes. (C) 2014 Elsevier Ltd. All rights reserved.

AB - In this work, a colloidal processing route for dense asymmetric La28-xW4+xO54+3x/2 membranes for hydrogen gas separation applications was established. Dip coating process. conditions were optimized to obtain approximate to 20 mu m thick dense layer supported on a porous substrate of the same composition. Surfactants based on electrosteric stabilization were evaluated to obtain stable suspensions in ethanol. The effect of the quantity and type (rice starch and carbon black) of sacrificial pore formers was evaluated for the porous substrates. Based on our results, samples made with 35-45 vol.% carbon black are the best choice to obtain highly porous supports with the optimum characteristics for the fabrication of asymmetric membranes. (C) 2014 Elsevier Ltd. All rights reserved.

KW - MATERIALS

KW - ELECTRICAL-CONDUCTIVITY

KW - PERMEATION

KW - ACCURACY

KW - OXIDES

KW - Proton conductor

KW - Dense ceramic membrane

KW - Lanthanum tungstate

KW - Dip coating

KW - Hydrogen

U2 - 10.1016/j.jeurceramsoc.2014.06.019

DO - 10.1016/j.jeurceramsoc.2014.06.019

M3 - Journal article

SN - 0955-2219

VL - 34

SP - 3783

EP - 3790

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 15

ER -

Asymmetric supported dense lanthanum tungstate membranes

Abstract

Keywords

Access to Document

OpenUrl availability

Fingerprint

Cite this