In situ tracking of the nanoscale expansion of porous carbon electrodes. Arruda, T. M., Heon, M., Presser, V., Hillesheim, P. C., Dai, S., Gogotsi, Y., Kalinin, S. V., & Balke, N. Energy & Environmental Science, 6:225–231, 2013. Publisher: Royal Society of Chemistry![In situ tracking of the nanoscale expansion of porous carbon electrodes. [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex Electrochem. double layer capacitors (EDLC) are rapidly emerging as a promising energy storage technol. offering extremely large power densities. Despite significant exptl. progress, nanoscale operation mechanisms of the EDLCs remain poorly understood and it is difficult to sep. processes at multiple time and length scales involved in operation including that of double layer charging and ionic mass transport. Here we explore the functionality of EDLC microporous carbon electrodes using a combination of classical electrochem. measurements and scanning probe microscopy based dilatometry, thus sepg. individual stages in charge/discharge processes based on strain generation. These methods allowed us to observe two distinct modes of EDLC charging, one fast charging of the double layer unassocd. with strain, and another much slower mass transport related charging exhibiting significant sample vol. changes. These studies open the pathway for the exploration of electrochem. systems with multiple processes involved in the charge and discharge, and investigation of the kinetics of those processes. [on SciFinder(R)]
@article{arruda_situ_2013,
title = {In situ tracking of the nanoscale expansion of porous carbon electrodes.},
volume = {6},
copyright = {All rights reserved},
issn = {1754-5706},
doi = {10.1039/C2EE23707E},
abstract = {Electrochem. double layer capacitors (EDLC) are rapidly emerging as a promising energy storage technol. offering extremely large power densities. Despite significant exptl. progress, nanoscale operation mechanisms of the EDLCs remain poorly understood and it is difficult to sep. processes at multiple time and length scales involved in operation including that of double layer charging and ionic mass transport. Here we explore the functionality of EDLC microporous carbon electrodes using a combination of classical electrochem. measurements and scanning probe microscopy based dilatometry, thus sepg. individual stages in charge/discharge processes based on strain generation. These methods allowed us to observe two distinct modes of EDLC charging, one fast charging of the double layer unassocd. with strain, and another much slower mass transport related charging exhibiting significant sample vol. changes. These studies open the pathway for the exploration of electrochem. systems with multiple processes involved in the charge and discharge, and investigation of the kinetics of those processes. [on SciFinder(R)]},
journal = {Energy \& Environmental Science},
author = {Arruda, Thomas M. and Heon, Min and Presser, Volker and Hillesheim, Patrick C. and Dai, Sheng and Gogotsi, Yury and Kalinin, Sergei V. and Balke, Nina.},
year = {2013},
note = {Publisher: Royal Society of Chemistry},
pages = {225--231},
url_paper={https://api.zotero.org/users/5598735/publications/items/JXREKJVN/file/view}
}
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