Electrochemistry on Stretchable Nanocomposite Electrodes: Dependence on Strain

ACS Nano
Lionel LopezNicholas A Kotov

Abstract

Stretchable nanocomposite conductors are essential for engineering of bio-inspired deformable electronics, human-machine interfaces, and energy storage devices. While the effect of strain on conductivity for stretchable conductors has been thoroughly investigated, the strain dependence of multiple other electrical-transport processes and parameters that determine the functionalities and biocompatibility of deformable electrodes has received virtually no attention. The constancy of electrochemical parameters at electrode-fluid interfaces such as redox potentials, impedances, and charge-transfer rate constants on strain is often tacitly assumed. However, it remains unknown whether these foundational assumptions actually hold true for deformable electrodes. Furthermore, it is also unknown whether the previously used charge-transport circuits describing electrochemical processes on rigid electrodes are applicable to deformable electrodes. Here, we investigate the validity of the strain invariability assumptions for an elastic composite electrode based on gold nanoparticles (AuNPs). A comprehensive model of electrode reactions that accurately describes electrochemical processes taking place on nanocomposite electrodes for ferro-/fer...Continue Reading

References

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Mar 27, 2010·Science·John A RogersYonggang Huang
Jul 19, 2013·Nature·Yoonseob KimNicholas A Kotov
Apr 18, 2014·Advanced Materials·Alex ChortosZhenan Bao
Jun 11, 2014·Advanced Materials·Xianfu WangGuozhen Shen

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