ICCAS OpenIR
Towards understanding the nanofluidic reverse electrodialysis system: well matched charge selectivity and ionic composition
Cao, Liuxuan1,2; Guo, Wei3,4; Ma, Wen1,2; Wang, Lin1,2; Xia, Fan3,4; Wang, Shutao3,4; Wang, Yugang1,2; Jiang, Lei3,4,5; Zhu, Daoben3,4
2011-06-01
Source PublicationENERGY & ENVIRONMENTAL SCIENCE
ISSN1754-5692
Volume4Issue:6Pages:2259-2266
AbstractThe widespread use of tiny electrical devices, from microelectromechanical systems (MEMS) to portable personal electronics, provides a new challenge in the miniaturization and integration of power supply systems. Towards this goal, we have recently demonstrated a bio-inspired nanofluidic energy harvesting system that converts salinity gradient energy from the ambient environment into sustainable electricity with single ion-selective nanopores (Adv. Funct. Mater. 2010, 20, 1339). The nanofluidic reverse electrodialysis system (NREDS) significantly improves the performance of conventional membrane-based reverse electrodialysis systems due to a higher ionic flux and a lower fluidic resistance. However, the fundamental working mechanism of the NREDS has been largely unexplored in the literature. In this work we have systematically investigated the performance of the NREDS in relation to the electrolyte type and the charge selectivity of the nanofluidic channel using both experimental and theoretical approaches. Experimental results show that the short-circuit current, the open-circuit voltage, and the resulting electric power of the NREDS are very sensitive to the ionic composition of the electrolyte solution. Through an in-depth theoretical analysis, two dominant factors that govern the charge separation and ion selectivity of the nanochannels were identified. The results prove that, with well-matched electrolyte types and nanopore charge selectivity, the harvested electric power and energy conversion efficiency can be improved by nearly two orders of magnitude.
DOI10.1039/c1ee01088c
Indexed BySCI
Language英语
WOS IDWOS:000291219100040
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:86[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/71544
Collection中国科学院化学研究所
Corresponding AuthorCao, Liuxuan
Affiliation1.Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China
2.Peking Univ, Ctr Appl Phys & Technol, Beijing 100871, Peoples R China
3.Chinese Acad Sci, Beijing Natl Lab Mol Sci BNLMS, Beijing 100190, Peoples R China
4.Chinese Acad Sci, Key Lab Organ Solids, Inst Chem, Beijing 100190, Peoples R China
5.Beijing Univ Aeronaut & Astronaut, Sch Chem & Environm, Beijing 100191, Peoples R China
Recommended Citation
GB/T 7714
Cao, Liuxuan,Guo, Wei,Ma, Wen,et al. Towards understanding the nanofluidic reverse electrodialysis system: well matched charge selectivity and ionic composition[J]. ENERGY & ENVIRONMENTAL SCIENCE,2011,4(6):2259-2266.
APA Cao, Liuxuan.,Guo, Wei.,Ma, Wen.,Wang, Lin.,Xia, Fan.,...&Zhu, Daoben.(2011).Towards understanding the nanofluidic reverse electrodialysis system: well matched charge selectivity and ionic composition.ENERGY & ENVIRONMENTAL SCIENCE,4(6),2259-2266.
MLA Cao, Liuxuan,et al."Towards understanding the nanofluidic reverse electrodialysis system: well matched charge selectivity and ionic composition".ENERGY & ENVIRONMENTAL SCIENCE 4.6(2011):2259-2266.
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