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Voltammetry within structured liquid nanosystems: towards the design of a flexible, three-dimensional framework for artificial photosystems

Wadhawan, Jay D.; Halls, Jonathan E.; Wright, Kevin J.; Pickersgill, Jonathan E.; Smith, Jamie P.; Altalhi, Amal A.; Bourne, Richard W.; Alaei, Padina; Ramakrishnappa, Thippeswamy; Kelly, Stephen M.; Wadhawan, Jay

Authors

Jay D. Wadhawan

Jonathan E. Halls

Kevin J. Wright

Jonathan E. Pickersgill

Jamie P. Smith

Amal A. Altalhi

Richard W. Bourne

Padina Alaei

Thippeswamy Ramakrishnappa



Abstract

Normal lyotropic liquid crystals (in the lamellar or hexagonal phases) are investigated as a route to afford a structured, three-dimensional, quasi-biphasic framework within which electron transfer cascades may be initiated voltammetrically. For model systems, we show that these can take place through reagent partitioning between the hydrophobic and hydrophilic subphases, and illustrate how the structure and its orientation, the nature of the ionic doping of the framework, and the hydrophobicity of the redox analyte may give rise to changes in the observed voltammetric waveshape. For the case of an artificial mimic of the first few stages of Photosystem I, we demonstrate that photo-induced electron transfer is likewise affected by the orientation, and develop a system of photon efficiency of ∼0.1%.

Journal Article Type Article
Publication Date Mar 20, 2012
Journal ELECTROCHIMICA ACTA
Print ISSN 0013-4686
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 70
Pages 215-227
APA6 Citation Halls, J. E., Wright, K. J., Pickersgill, J. E., Smith, J. P., Altalhi, A. A., Bourne, R. W., …Wadhawan, J. (2012). Voltammetry within structured liquid nanosystems: towards the design of a flexible, three-dimensional framework for artificial photosystems. Electrochimica acta, 70, 215-227. https://doi.org/10.1016/j.electacta.2012.03.052
DOI https://doi.org/10.1016/j.electacta.2012.03.052
Keywords Lyotropic liquid crystal; Artificial photosynthesis; Liquid nanosystem; Cyclic voltammetry; Photoelectrochemistry
Publisher URL https://www.sciencedirect.com/science/article/pii/S001346861200391X?via%3Dihub
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