Robust sulfonated poly (ether ether ketone) nanochannels for high-performance osmotic energy conversion.
SPEEK membrane
ion-selectivity
nanochannel
salinity gradient power generation
Journal
National science review
ISSN: 2053-714X
Titre abrégé: Natl Sci Rev
Pays: China
ID NLM: 101633095
Informations de publication
Date de publication:
Aug 2020
Aug 2020
Historique:
received:
20
10
2019
revised:
11
03
2020
accepted:
12
03
2020
entrez:
25
10
2021
pubmed:
1
8
2020
medline:
1
8
2020
Statut:
ppublish
Résumé
The membrane-based reverse electrodialysis (RED) technique has a fundamental role in harvesting clean and sustainable osmotic energy existing in the salinity gradient. However, the current designs of membranes cannot cope with the high output power density and robustness. Here, we construct a sulfonated poly (ether ether ketone) (SPEEK) nanochannel membrane with numerous nanochannels for a membrane-based osmotic power generator. The parallel nanochannels with high space charges show excellent cation-selectivity, which could further be improved by adjusting the length and charge density of nanochannels. Based on numerical simulation, the system with space charge shows better conductivity and selectivity than those of a surface-charged nanochannel. The output power density of our proposed membrane-based device reaches up to 5.8 W/m
Identifiants
pubmed: 34692163
doi: 10.1093/nsr/nwaa057
pii: nwaa057
pmc: PMC8288931
doi:
Types de publication
Journal Article
Langues
eng
Pagination
1349-1359Commentaires et corrections
Type : ErratumIn
Informations de copyright
© The Author(s) 2020. Published by Oxford University Press on behalf of China Science Publishing & Media Ltd.
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