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Ionic Diodes Based on Regenerated α‐Cellulose Films Deposited Asymmetrically onto a Microhole
Author(s) -
Aaronson Barak D. B.,
He Daping,
Madrid Elena,
Johns Marcus A.,
Scott Janet L.,
Fan Lian,
Doughty James,
Kadowaki Marco A. S.,
Polikarpov Igor,
McKeown Neil B.,
Marken Frank
Publication year - 2017
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201601974
Subject(s) - cellulose , ionic liquid , materials science , rectification , chemical engineering , ionic bonding , regenerated cellulose , poly ethylene , diode , ethylene , aqueous solution , composite material , optoelectronics , ion , chemistry , organic chemistry , voltage , catalysis , electrical engineering , engineering
Cellulose films of approximately 5 μm thickness, reconstituted from ionic liquid media onto a poly‐ethylene‐terephthalate (PET) film with a 5, 10, 20, or 40 μm diameter microhole, show current rectification when immersed in aqueous NaCl. For “asymmetric cellulose deposits” this rectification, or ionic diode behaviour, is then investigated as a function of ionic strength and microhole diameter. Future applications are envisaged in sustainable cellulose‐based desalination, sensing, or energy harvesting processes.