{"id":192,"date":"2016-08-24T07:25:06","date_gmt":"2016-08-24T07:25:06","guid":{"rendered":"https:\/\/doublelayer.eu\/vilab\/?p=192"},"modified":"2016-08-24T07:25:06","modified_gmt":"2016-08-24T07:25:06","slug":"comp-perspective-on-the-supercaps","status":"publish","type":"post","link":"https:\/\/doublelayer.eu\/vilab\/2016\/08\/24\/comp-perspective-on-the-supercaps\/","title":{"rendered":"Comp. perspective on the supercaps"},"content":{"rendered":"<p>In the recent years, a significant progress has been achieved in the modeling of realistic porous carbon electrodes <span style=\"color: #ff9900;\">[J. C. Palmer and K. E. Gubbins, Micropor.\u00a0Mesopor. Mat., 154, 24\u201337 (2012).]<\/span>, simulations under constant potential conditions <span style=\"color: #ff9900;\">[D. T. Limmer et al., Phys. Rev. Lett., 111, 106102 (2013).]<\/span>, description of the electrode material electronic structure <span style=\"color: #ff9900;\">[E. Paek, A. J. Pak, and G. S. Hwang, J. Electrochem. Soc., 160, A1\u2013A10 (2013).]<\/span>, and ion packing relation to the capacitance <span style=\"color: #ff9900;\">[S. Kondrat, C. R. P\u00e9rez, V. Presser, Y. Gogotsi, and A. A. Kornyshev, Energy Environ. Sci., 5, 6474\u20136479 (2012).]<\/span>. Let us turn the readers\u2019 attention to two aspects of the theoretical predicted relation between the ion size and the pore size, suggesting higher capacitance values for certain pore sizes. First, the molecular dynamics and density functional theory simulations do confirm the theory in case of slit-pore models with rigorously defined width <span style=\"color: #ff9900;\">[D. Jiang and J. Wu, J. Phys. Chem. Lett., 4, 1260\u20131267 (2013).] &amp; [G. Feng, S. Li, V. Presser, and P. T. Cummings, J. Phys. Chem. Lett., 4, 3367\u20133376 (2013).]<\/span>. Therefore, the theory suggests that some electrode materials with a certain pore distribution the capacitance is higher due to specific ion packing. Yet, as has been elegantly pointed by Cummings and co-workers <span style=\"color: #ff9900;\">[G. Feng, S. Li, V. Presser, and P. T. Cummings, J. Phys. Chem. Lett., 4, 3367\u20133376 (2013).]<\/span>, due to a wide distribution of pore sizes in the real electrode material this effect might not at all affect the experimentally measured capacitance. Second, as noted above, the capacitance is greatly determined by the electronic structure of the electrode material. The state-of-the-art molecular dynamics studies do not yet include the electronic structure into account <span style=\"color: #ff9900;\">[M. V. Fedorov and A. A. Kornyshev, Chem. Rev., 114, 2978\u20133036 (2014).]<\/span>. The situation is about to change in the future, for example with the help of <em>ab initio<\/em> molecular dynamics <span style=\"color: #ff9900;\">[M. Salanne, Phys. Chem. Chem. Phys., 17, 14270\u201314279 (2015).]<\/span>.<\/p>\n<p>Note, the following text appeared in the artile:\u00a0E. Tee, I. Tallo, T. Thomberg, A. J\u00e4nes, E. Lust, J. Electrochem. Soc. 163 (2016) A1317\u2013A1325. See at\u00a0<a href=\"http:\/\/jes.ecsdl.org\/content\/163\/7\/A1317.abstract\">http:\/\/jes.ecsdl.org\/content\/163\/7\/A1317.abstract<\/a> (DOI: 10.1149\/2.0931607jes)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the recent years, a significant progress has been achieved in the modeling of realistic porous carbon electrodes [J. C. Palmer and K. E. Gubbins, Micropor.\u00a0Mesopor. Mat., 154, 24\u201337 (2012).], simulations under constant potential conditions [D. T. Limmer et al., Phys. Rev. Lett., 111, 106102 (2013).], description of the electrode material electronic structure [E. Paek,&hellip; <a class=\"read-more\" href=\"https:\/\/doublelayer.eu\/vilab\/2016\/08\/24\/comp-perspective-on-the-supercaps\/\">Read More<\/a><\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-192","post","type-post","status-publish","format-standard","hentry","category-highlights"],"_links":{"self":[{"href":"https:\/\/doublelayer.eu\/vilab\/wp-json\/wp\/v2\/posts\/192","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/doublelayer.eu\/vilab\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/doublelayer.eu\/vilab\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/doublelayer.eu\/vilab\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/doublelayer.eu\/vilab\/wp-json\/wp\/v2\/comments?post=192"}],"version-history":[{"count":1,"href":"https:\/\/doublelayer.eu\/vilab\/wp-json\/wp\/v2\/posts\/192\/revisions"}],"predecessor-version":[{"id":193,"href":"https:\/\/doublelayer.eu\/vilab\/wp-json\/wp\/v2\/posts\/192\/revisions\/193"}],"wp:attachment":[{"href":"https:\/\/doublelayer.eu\/vilab\/wp-json\/wp\/v2\/media?parent=192"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/doublelayer.eu\/vilab\/wp-json\/wp\/v2\/categories?post=192"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/doublelayer.eu\/vilab\/wp-json\/wp\/v2\/tags?post=192"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}