Development of Quaternized Chitosan Integrated with Nanofibrous Polyacrylonitrile Mat as an Anion-Exchange Membrane

Aktilek Akhmetova; Bauyrzhan Myrzakhmetov; Yanwei Wang; Zhumabay Bakenov; Almagul Mentbayeva

doi:10.1021/acsomega.2c05961

Development of Quaternized Chitosan Integrated with Nanofibrous Polyacrylonitrile Mat as an Anion-Exchange Membrane

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

Abstract

A two-phase anion-exchange membrane was prepared from quaternized chitosan (QCS) integrated with an electrospun polyacrylonitrile (PAN) scaffold by spin coating. To synthesize QCS, glycidyltrimethylammonium chloride in various amounts was introduced into the structure of CS. The characterization of the cast cross-linked QCS (CQCS) membranes by impedance spectroscopy revealed the ionic conductivity (IC) in the range of 2.8 × 10 -4 to 8.2 × 10 -4 S cm -1 and the degree of quaternization (DQ) of 26.4-51.0%, where the CQCS film with the DQ of 51.0% showed excellent performance. When CQCS was reinforced with a PAN fiber mat, the newly developed composite membrane demonstrated the highest IC of 34 × 10 -4 S cm -1 at 80 °C, low swelling, and an almost eightfold increase in tensile strength at a fully hydrated state compared to pristine materials. Moreover, the CQCS/PAN membrane was chemically stable and revealed increasing hydroxide transport during 1 month immersion in alkaline media.

Original language	English
Pages (from-to)	45371-45380
Number of pages	10
Journal	ACS Omega
Volume	7
Issue number	49
DOIs	https://doi.org/10.1021/acsomega.2c05961
Publication status	Published - Dec 13 2022

Funding

This work was supported by the research grants AP09057868 for “High performance polymer-based anion-exchange membranes for alkaline fuel cells” project from MES RK and 080420FD1906 for “Development of composite anion-exchange membranes with improved chemical and mechanical stability” from Nazarbayev University.

Funders	Funder number
Ministry of Education and Science	080420FD1906
Nazarbayev University

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 3 Good Health and Well-being
SDG 4 Quality Education
SDG 6 Clean Water and Sanitation
SDG 7 Affordable and Clean Energy
SDG 9 Industry, Innovation, and Infrastructure
SDG 12 Responsible Consumption and Production
SDG 13 Climate Action

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering

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10.1021/acsomega.2c05961

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title = "Development of Quaternized Chitosan Integrated with Nanofibrous Polyacrylonitrile Mat as an Anion-Exchange Membrane",

abstract = "A two-phase anion-exchange membrane was prepared from quaternized chitosan (QCS) integrated with an electrospun polyacrylonitrile (PAN) scaffold by spin coating. To synthesize QCS, glycidyltrimethylammonium chloride in various amounts was introduced into the structure of CS. The characterization of the cast cross-linked QCS (CQCS) membranes by impedance spectroscopy revealed the ionic conductivity (IC) in the range of 2.8 × 10 -4 to 8.2 × 10 -4 S cm -1 and the degree of quaternization (DQ) of 26.4-51.0\%, where the CQCS film with the DQ of 51.0\% showed excellent performance. When CQCS was reinforced with a PAN fiber mat, the newly developed composite membrane demonstrated the highest IC of 34 × 10 -4 S cm -1 at 80 °C, low swelling, and an almost eightfold increase in tensile strength at a fully hydrated state compared to pristine materials. Moreover, the CQCS/PAN membrane was chemically stable and revealed increasing hydroxide transport during 1 month immersion in alkaline media. ",

author = "Aktilek Akhmetova and Bauyrzhan Myrzakhmetov and Yanwei Wang and Zhumabay Bakenov and Almagul Mentbayeva",

year = "2022",

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doi = "10.1021/acsomega.2c05961",

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T1 - Development of Quaternized Chitosan Integrated with Nanofibrous Polyacrylonitrile Mat as an Anion-Exchange Membrane

AU - Akhmetova, Aktilek

AU - Myrzakhmetov, Bauyrzhan

AU - Wang, Yanwei

AU - Bakenov, Zhumabay

AU - Mentbayeva, Almagul

PY - 2022/12/13

Y1 - 2022/12/13

N2 - A two-phase anion-exchange membrane was prepared from quaternized chitosan (QCS) integrated with an electrospun polyacrylonitrile (PAN) scaffold by spin coating. To synthesize QCS, glycidyltrimethylammonium chloride in various amounts was introduced into the structure of CS. The characterization of the cast cross-linked QCS (CQCS) membranes by impedance spectroscopy revealed the ionic conductivity (IC) in the range of 2.8 × 10 -4 to 8.2 × 10 -4 S cm -1 and the degree of quaternization (DQ) of 26.4-51.0%, where the CQCS film with the DQ of 51.0% showed excellent performance. When CQCS was reinforced with a PAN fiber mat, the newly developed composite membrane demonstrated the highest IC of 34 × 10 -4 S cm -1 at 80 °C, low swelling, and an almost eightfold increase in tensile strength at a fully hydrated state compared to pristine materials. Moreover, the CQCS/PAN membrane was chemically stable and revealed increasing hydroxide transport during 1 month immersion in alkaline media.

AB - A two-phase anion-exchange membrane was prepared from quaternized chitosan (QCS) integrated with an electrospun polyacrylonitrile (PAN) scaffold by spin coating. To synthesize QCS, glycidyltrimethylammonium chloride in various amounts was introduced into the structure of CS. The characterization of the cast cross-linked QCS (CQCS) membranes by impedance spectroscopy revealed the ionic conductivity (IC) in the range of 2.8 × 10 -4 to 8.2 × 10 -4 S cm -1 and the degree of quaternization (DQ) of 26.4-51.0%, where the CQCS film with the DQ of 51.0% showed excellent performance. When CQCS was reinforced with a PAN fiber mat, the newly developed composite membrane demonstrated the highest IC of 34 × 10 -4 S cm -1 at 80 °C, low swelling, and an almost eightfold increase in tensile strength at a fully hydrated state compared to pristine materials. Moreover, the CQCS/PAN membrane was chemically stable and revealed increasing hydroxide transport during 1 month immersion in alkaline media.

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UR - https://www.scopus.com/pages/publications/85143639739#tab=citedBy

U2 - 10.1021/acsomega.2c05961

DO - 10.1021/acsomega.2c05961

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SN - 2470-1343

VL - 7

SP - 45371

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JO - ACS Omega

JF - ACS Omega

IS - 49

ER -

Development of Quaternized Chitosan Integrated with Nanofibrous Polyacrylonitrile Mat as an Anion-Exchange Membrane

Abstract

Funding

UN SDGs

ASJC Scopus subject areas

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