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N7-(carboxymethyl)guanine-lithium crystalline complex: a bioinspired solid electrolyte

Dutta, Dipak, Nagapradeep, N., Zhu, Haijin, Forsyth, Maria, Verma, Sandeep and Bhattacharyya, Aninda J. 2016, N7-(carboxymethyl)guanine-lithium crystalline complex: a bioinspired solid electrolyte, Scientific reports, vol. 6, pp. 1-9, doi: 10.1038/srep24499.

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Title N7-(carboxymethyl)guanine-lithium crystalline complex: a bioinspired solid electrolyte
Author(s) Dutta, Dipak
Nagapradeep, N.
Zhu, Haijin
Forsyth, Maria
Verma, Sandeep
Bhattacharyya, Aninda J.
Journal name Scientific reports
Volume number 6
Start page 1
End page 9
Total pages 9
Publisher Nature Publishing Group
Place of publication London, Eng.
Publication date 2016
ISSN 2045-2322
Keyword(s) Chemistry
Materials science
Summary Electrochemical device with components having direct significance to biological life processes is a potent futuristic strategy for the realization of all-round green and sustainable development. We present here synthesis design, structural analysis and ion transport of a novel solid organic electrolyte (G7Li), a compound reminiscent of ion channels, derived from regioisomeric N7-guanine-carboxylate conjugate and Li-ions. G7Li, with it's in-built supply of Li(+)-ions, exhibited remarkably high lithium-ion transference number (= 0.75) and tunable room temperature ionic conductivity spanning three decades (≈10(-7) to 10(-3) Ω(-1) cm(-1)) as a function of moisture content. The ionic conductivity show a distinct reversible transition around 80-100 °C, from a dual Li(+) and H(+) (<100 °C) to a pure Li(+) conductor (>100 °C). Systematic studies reveal a transition from water-assisted Li-ion transport to Li hopping-like mechanism involving guanine-Li coordination. While as-synthesized G7Li has potential in humidity sensors, the anhydrous G7Li is attractive for rechargeable batteries.
Language eng
DOI 10.1038/srep24499
Field of Research 030301 Chemical Characterisation of Materials
030607 Transport Properties and Non-equilibrium Processes
030604 Electrochemistry
Socio Economic Objective 850602 Energy Storage (excl. Hydrogen)
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, The Authors
Free to Read? Yes
Use Rights Creative Commons Attribution licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30083098

Document type: Journal Article
Collections: Institute for Frontier Materials
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.