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Zhang D, Wang Y, Wang X, Chen B, Wang Y, Jiang C, Xu T. Physical and chemical synergistic strategy: A facile approach to fabricate monovalent ion permselective membranes. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116873] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Altaf F, Batool R, Gill R, Shabir MA, Drexler M, Alamgir F, Abbas G, Sabir A, Jacob KI. Novel N-p-carboxy benzyl chitosan/poly (vinyl alcohol/functionalized zeolite mixed matrix membranes for DMFC applications. Carbohydr Polym 2020; 237:116111. [PMID: 32241453 DOI: 10.1016/j.carbpol.2020.116111] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 02/27/2020] [Accepted: 03/02/2020] [Indexed: 11/16/2022]
Abstract
The novel N-p-carboxy benzyl chitosan (CBC)/ poly (vinyl alcohol) (PVA) based mixed matrix membranes (MMMs) filled with surface-modified zeolite have been prepared using the dissolution casting technique. The applicability of prepared MMMs for direct methanol fuel cell (DMFC) was investigated in terms of water uptake, methanol permeation, and proton conductivity by changing filler content (10-50 wt. %). The zeolite was modified by silane coupling agent, 3-mercaptopropyltrimethoxysilane (MPTMS). The resultant modified zeolite (MZ) was incorporated into CBC/PVA blend to obtain mixed matrix PEMs. The functional group, structural properties, morphological and topographical investigation of MMMs were examined using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and Scanning electron microscopy (SEM) respectively. The prepared MMMs exhibited a remarkable decrease in methanol permeability of 2.3 × 10-7 cm2/s with C-CPMZ50. The maximum value of proton conductivity of 0.0527 Scm-1, was shown by C-CMPZ10. The prepared PEMs also displayed good stability during long term operating time.
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Affiliation(s)
- Faizah Altaf
- Department of Environmental Sciences, Fatima Jinnah Women University, Rawalpindi, 46000, Pakistan; School of Materials Science and Engineering, Georgia Institute of Technology, North Avenue, Atlanta, GA, 30332, USA; Department of Physics, COMSATS University Islamabad, Lahore Campus, Lahore, 54000, Pakistan.
| | - Rida Batool
- Department of Environmental Sciences, Fatima Jinnah Women University, Rawalpindi, 46000, Pakistan; School of Materials Science and Engineering, Georgia Institute of Technology, North Avenue, Atlanta, GA, 30332, USA; Department of Physics, COMSATS University Islamabad, Lahore Campus, Lahore, 54000, Pakistan
| | - Rohama Gill
- Department of Environmental Sciences, Fatima Jinnah Women University, Rawalpindi, 46000, Pakistan
| | | | - Matthew Drexler
- School of Materials Science and Engineering, Georgia Institute of Technology, North Avenue, Atlanta, GA, 30332, USA
| | - Faisal Alamgir
- School of Materials Science and Engineering, Georgia Institute of Technology, North Avenue, Atlanta, GA, 30332, USA
| | - Ghazanfar Abbas
- Department of Physics, COMSATS University Islamabad, Lahore Campus, Lahore, 54000, Pakistan
| | - Aneela Sabir
- Department of Polymer Engineering and Technology, University of the Punjab, Lahore, 54590, Pakistan
| | - Karl I Jacob
- School of Materials Science and Engineering, Georgia Institute of Technology, North Avenue, Atlanta, GA, 30332, USA.
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