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Issue 21, 2017
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Temporal analysis of blister evolution during anion intercalation in graphite

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Abstract

In the currently accepted picture, when graphite is immersed and polarized in a diluted sulfuric acid electrolyte, the surface undergoes an invasive process due to the intercalation of solvated sulphate anions inside the crystal. The following evolution of CO, CO2 and O2 promotes the surface swelling and the growth of blisters. Here, we give evidence that the appearance of blisters affects the graphite surface as soon as the oxygen potential is reached, i.e. before the traditionally accepted anion intercalation stage, which instead is demonstrated slowing the blister development. These results suggest a new picture of the solvated anion intercalation in graphite with respect to the current interpretative model.

Graphical abstract: Temporal analysis of blister evolution during anion intercalation in graphite

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Publication details

The article was received on 21 Jan 2017, accepted on 22 Apr 2017 and first published on 27 Apr 2017


Article type: Paper
DOI: 10.1039/C7CP00481H
Citation: Phys. Chem. Chem. Phys., 2017,19, 13855-13859
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    Temporal analysis of blister evolution during anion intercalation in graphite

    R. Yivlialin, G. Bussetti, L. Magagnin, F. Ciccacci and L. Duò, Phys. Chem. Chem. Phys., 2017, 19, 13855
    DOI: 10.1039/C7CP00481H

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