N7-(carboxymethyl)guanine-Lithium Crystalline Complex: A Bioinspired Solid Electrolyte

TY - JOUR

T1 - N7-(carboxymethyl)guanine-Lithium Crystalline Complex

T2 - A Bioinspired Solid Electrolyte

AU - Dutta, Dipak

AU - Nagapradeep, N.

AU - Zhu, Haijin

AU - Forsyth, Maria

AU - Verma, Sandeep

AU - Bhattacharyya, Aninda J.

PY - 2016/4/19

Y1 - 2016/4/19

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84963939251&partnerID=8YFLogxK

U2 - 10.1038/srep24499

DO - 10.1038/srep24499

M3 - 文章

C2 - 27091631

AN - SCOPUS:84963939251

SN - 2045-2322

VL - 6

JO - Scientific Reports

JF - Scientific Reports

M1 - 24499

ER -