A Novel Thin Film Composite Membrane for Osmotic Energy Generation

Li, D; Ou, TK; Fu, Q; Li, DS; Liu, Z; Sun, Y

A Novel Thin Film Composite Membrane for Osmotic Energy Generation

Li, D Ou, TK Fu, Q

Li, DS Liu, Z Sun, Y

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Publisher:: AMER CHEMICAL SOC
Publication Type:: Journal Article
Citation:: Industrial and Engineering Chemistry Research, 2023, 62, (14), pp. 5889-5897
Issue Date:: 2023-04-12

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Field	Value	Language
dc.contributor.author	Li, D
dc.contributor.author	Ou, TK
dc.contributor.author	Fu, Q https://orcid.org/0000-0002-4012-330X
dc.contributor.author	Li, DS
dc.contributor.author	Liu, Z
dc.contributor.author	Sun, Y
dc.date.accessioned	2024-03-12T08:03:07Z
dc.date.available	2024-03-12T08:03:07Z
dc.date.issued	2023-04-12
dc.identifier.citation	Industrial and Engineering Chemistry Research, 2023, 62, (14), pp. 5889-5897
dc.identifier.issn	0888-5885
dc.identifier.issn	1520-5045
dc.identifier.uri	http://hdl.handle.net/10453/176588
dc.description.abstract	A novel thin film composite (TFC) membrane was developed to simultaneously achieve high energy density and mechanical robustness for osmotic energy generation (OEG). The composite membrane is composed of a poly(vinyl alcohol) (PVA) aerogel substrate and a thin sulfonated poly(ether ether ketone)/graphene (SPEEK/G) top layer. The PVA support offers excellent mechanical stability, flexibility, and high water permeability, and the mixed matrix skin layer amplifies the differential diffusion rates of cations and anions across the TFC membrane. As a result, the TFC membrane manages to achieve a high power density of ca. 5.89 W m-2 under a salinity gradient of 50 (0.5 M\|0.01 M, NaCl). Furthermore, the energy generation device can maintain the high power output for 4 days or under 300 P pressure, indicating excellent long-term stability and mechanical durability. The work thus provides a new membrane technology to prepare high-performance materials for osmotic energy harvesting application.
dc.language	English
dc.publisher	AMER CHEMICAL SOC
dc.relation.ispartof	Industrial and Engineering Chemistry Research
dc.relation.isbasedon	10.1021/acs.iecr.3c00307
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.rights	This document is the Accepted Manuscript version of a Published Work that appeared in final form in Industrial and Engineering Chemistry Research copyright 2023 © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acs.iecr.3c00307
dc.subject	03 Chemical Sciences, 09 Engineering
dc.subject.classification	Chemical Engineering
dc.subject.classification	34 Chemical sciences
dc.subject.classification	40 Engineering
dc.title	A Novel Thin Film Composite Membrane for Osmotic Energy Generation
dc.type	Journal Article
utslib.citation.volume	62
utslib.for	03 Chemical Sciences
utslib.for	09 Engineering
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	open_access	*
utslib.copyright.embargo	2024-04-12T00:00:00+1000Z
dc.date.updated	2024-03-12T08:03:06Z
pubs.issue	14
pubs.publication-status	Published
pubs.volume	62
utslib.citation.issue	14

Abstract:

A novel thin film composite (TFC) membrane was developed to simultaneously achieve high energy density and mechanical robustness for osmotic energy generation (OEG). The composite membrane is composed of a poly(vinyl alcohol) (PVA) aerogel substrate and a thin sulfonated poly(ether ether ketone)/graphene (SPEEK/G) top layer. The PVA support offers excellent mechanical stability, flexibility, and high water permeability, and the mixed matrix skin layer amplifies the differential diffusion rates of cations and anions across the TFC membrane. As a result, the TFC membrane manages to achieve a high power density of ca. 5.89 W m-2 under a salinity gradient of 50 (0.5 M|0.01 M, NaCl). Furthermore, the energy generation device can maintain the high power output for 4 days or under 300 P pressure, indicating excellent long-term stability and mechanical durability. The work thus provides a new membrane technology to prepare high-performance materials for osmotic energy harvesting application.

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http://hdl.handle.net/10453/176588