Turing-type nanochannel membranes with extrinsic ion transport pathways for high-efficiency osmotic energy harvesting

Kehan Zou, Haoyang Ling, Qingchen Wang, Congcong Zhu, Zhehua Zhang, Dehua Huang, Ke Li, Yuge Wu, Weiwen Xin (), Xiang-Yu Kong (), Lei Jiang and Liping Wen ()
Additional contact information
Kehan Zou: Chinese Academy of Sciences
Haoyang Ling: Chinese Academy of Sciences
Qingchen Wang: Chinese Academy of Sciences
Congcong Zhu: Chinese Academy of Sciences
Zhehua Zhang: Chinese Academy of Sciences
Dehua Huang: Chinese Academy of Sciences
Ke Li: Chinese Academy of Sciences
Yuge Wu: Chinese Academy of Sciences
Weiwen Xin: Chinese Academy of Sciences
Xiang-Yu Kong: Chinese Academy of Sciences
Lei Jiang: Chinese Academy of Sciences
Liping Wen: Chinese Academy of Sciences

Nature Communications, 2024, vol. 15, issue 1, 1-10

Abstract: Abstract Two-dimensional (2D) nanofluidic channels with confined transport pathways and abundant surface functional groups have been extensively investigated to achieve osmotic energy harvesting. However, solely relying on intrinsic interlayer channels results in insufficient permeability, thereby limiting the output power densities, which poses a significant challenge to the widespread application of these materials. Herein, we present a nanoconfined sacrificial template (NST) strategy to create a crafted channel structure, termed as Turing-type nanochannels, within the membrane. Extrinsic interlaced channels are formed between the lamellae using copper hydroxide nanowires as sacrificial templates. These Turing-type nanochannels significantly increase transport pathways and functional areas, resulting in a 23% enhancement in ionic current while maintaining a cation selectivity of 0.91. The output power density of the Turing-type nanochannel membrane increases from 3.9 to 5.9 W m−2 and remains stable for at least 120 hours. This membrane exhibits enhanced applicability in real saltwater environments across China, achieving output power densities of 7.7 W m−2 in natural seawater and 9.8 W m−2 in salt-lake brine. This work demonstrates the promising potential of the Turing-channel design for nanoconfined ionic transport in the energy conversion field.

Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-024-54622-2 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-54622-2

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-024-54622-2

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().