Transport properties of SPEEK nanocomposite proton conducting membranes: optimization of additives content by response surface methodology

Ilbeygi, H., Mayahi, A., Ismail, A. F., Nasef, M. M., Jaafar, J., Ghasemi, M., Matsuura, T. and Zaidi, S. M. J. (2014) Transport properties of SPEEK nanocomposite proton conducting membranes: optimization of additives content by response surface methodology. Journal of the Taiwan Institute of Chemical Engineers, 45 5: 2265-2279. doi:10.1016/j.jtice.2014.08.005


Author Ilbeygi, H.
Mayahi, A.
Ismail, A. F.
Nasef, M. M.
Jaafar, J.
Ghasemi, M.
Matsuura, T.
Zaidi, S. M. J.
Title Transport properties of SPEEK nanocomposite proton conducting membranes: optimization of additives content by response surface methodology
Journal name Journal of the Taiwan Institute of Chemical Engineers   Check publisher's open access policy
ISSN 1876-1070
1876-1089
Publication date 2014-09
Year available 2014
Sub-type Article (original research)
DOI 10.1016/j.jtice.2014.08.005
Open Access Status
Volume 45
Issue 5
Start page 2265
End page 2279
Total pages 15
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Collection year 2015
Language eng
Formatted abstract
The addition of Cloisite 15A® Clay (CC) and 2,4,6-triaminopyrimidine (TAP) to enhance the transport properties of sulfonated poly ether ether ketone (SPEEK) nanocomposite membrane, which is a promising candidate for direct methanol fuel cell (DMFC) application, was investigated. The central composite design (CCD) of the response surface method (RSM) was utilized to optimize the content of incorporated additives in SPEEK nanocomposite membrane and predict its performance. Three models correlating the independent parameters (contents of added CC and TAP) and the responses (proton conductivity, methanol permeability and selectivity) were developed and verified with experimental data. The optimum parameters for achieving highest performance represented by methanol permeability of 2.56 × 10−6 (cm/s), proton conductivity of 17.12 (mS/cm2) and membrane selectivity of 55773.7 sS/cm3 were obtained at contents of CC and TAP of 2.92 and 5.68 wt%, respectively. The deviation of the corresponding experimental data was found to be in an acceptable range, confirming the suitability of RSM for predicting the membrane performance and optimizing the additives contents. The membrane with optimum additives content showed an improved structure as revealed by the field emission scanning electron microscopy (FESEM).
Keyword SPEEK nanocomposite
Proton conductivity
Methanol permeability
Response surface methodology
Optimization
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2015 Collection
Australian Institute for Bioengineering and Nanotechnology Publications
 
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