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Strain Engineering to Modify the Electrochemistry of Energy Storage Electrodes

Strain engineering has been a critical aspect of device design in semiconductor manufacturing for the past decade, but remains relatively unexplored for other applications, such as energy storage. Using mechanical strain as an input parameter to modulate electrochemical potentials of metal oxides op...

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Autores principales: Muralidharan, Nitin, Carter, Rachel, Oakes, Landon, Cohn, Adam P., Pint, Cary L.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4901311/
https://www.ncbi.nlm.nih.gov/pubmed/27283872
http://dx.doi.org/10.1038/srep27542
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author Muralidharan, Nitin
Carter, Rachel
Oakes, Landon
Cohn, Adam P.
Pint, Cary L.
author_facet Muralidharan, Nitin
Carter, Rachel
Oakes, Landon
Cohn, Adam P.
Pint, Cary L.
author_sort Muralidharan, Nitin
collection PubMed
description Strain engineering has been a critical aspect of device design in semiconductor manufacturing for the past decade, but remains relatively unexplored for other applications, such as energy storage. Using mechanical strain as an input parameter to modulate electrochemical potentials of metal oxides opens new opportunities intersecting fields of electrochemistry and mechanics. Here we demonstrate that less than 0.1% strain on a Ni-Ti-O based metal-oxide formed on superelastic shape memory NiTi alloys leads to anodic and cathodic peak potential shifts by up to ~30 mV in an electrochemical cell. Moreover, using the superelastic properties of NiTi to enable strain recovery also recovers the electrochemical potential of the metal oxide, providing mechanistic evidence of strain-modified electrochemistry. These results indicate that mechanical energy can be coupled with electrochemical systems to efficiently design and optimize a new class of strain-modulated energy storage materials.
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spelling pubmed-49013112016-06-13 Strain Engineering to Modify the Electrochemistry of Energy Storage Electrodes Muralidharan, Nitin Carter, Rachel Oakes, Landon Cohn, Adam P. Pint, Cary L. Sci Rep Article Strain engineering has been a critical aspect of device design in semiconductor manufacturing for the past decade, but remains relatively unexplored for other applications, such as energy storage. Using mechanical strain as an input parameter to modulate electrochemical potentials of metal oxides opens new opportunities intersecting fields of electrochemistry and mechanics. Here we demonstrate that less than 0.1% strain on a Ni-Ti-O based metal-oxide formed on superelastic shape memory NiTi alloys leads to anodic and cathodic peak potential shifts by up to ~30 mV in an electrochemical cell. Moreover, using the superelastic properties of NiTi to enable strain recovery also recovers the electrochemical potential of the metal oxide, providing mechanistic evidence of strain-modified electrochemistry. These results indicate that mechanical energy can be coupled with electrochemical systems to efficiently design and optimize a new class of strain-modulated energy storage materials. Nature Publishing Group 2016-06-10 /pmc/articles/PMC4901311/ /pubmed/27283872 http://dx.doi.org/10.1038/srep27542 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Muralidharan, Nitin
Carter, Rachel
Oakes, Landon
Cohn, Adam P.
Pint, Cary L.
Strain Engineering to Modify the Electrochemistry of Energy Storage Electrodes
title Strain Engineering to Modify the Electrochemistry of Energy Storage Electrodes
title_full Strain Engineering to Modify the Electrochemistry of Energy Storage Electrodes
title_fullStr Strain Engineering to Modify the Electrochemistry of Energy Storage Electrodes
title_full_unstemmed Strain Engineering to Modify the Electrochemistry of Energy Storage Electrodes
title_short Strain Engineering to Modify the Electrochemistry of Energy Storage Electrodes
title_sort strain engineering to modify the electrochemistry of energy storage electrodes
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4901311/
https://www.ncbi.nlm.nih.gov/pubmed/27283872
http://dx.doi.org/10.1038/srep27542
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