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The synthesized products comprise an amorphous carbonaceous material with aromatic sp<jats:sup>2<\/jats:sup> carbon clusters, differing mainly in their oxidation degree. Surprisingly, it was found that nitrogen is incorporated in the carbon\u2010based material during the electrolysis, which is provided by the N<jats:sub>2<\/jats:sub> gas present in the air and\/or aqueous medium. This phenomenon is explained on the basis that very reactive carbonaceous species are formed during the electrodes polarization, owing to an anomalous high electric field generated along the galvanostatic polarization. In addition, it was also evidenced that ECH materials display a negative charge, counterbalanced by sodium ions and unique optical properties, exhibiting deep ultraviolet emission (ca. 4.1\u2005eV), as well as blue luminescence. It is foreseen that these carbon materials will have important repercussions in optoelectronics devices, energy technology (supercapacitors, batteries, and fuel cells), and biomedicine.<\/jats:p>","DOI":"10.1002\/celc.201700386","type":"journal-article","created":{"date-parts":[[2017,6,16]],"date-time":"2017-06-16T10:22:38Z","timestamp":1497608558000},"page":"2693-2702","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["One\u2010Step Cathodic and Anodic Synthesis of Hydrophilic Carbon Nanomaterials"],"prefix":"10.1002","volume":"4","author":[{"given":"Andreia D.","family":"Veloso","sequence":"first","affiliation":[{"name":"Centro de Qu\u00edmica-Vila Real, Escola de Ci\u00eancias da Vida e do Ambiente Universidade de Tr\u00e1s-os-Montes e Alto Douro  5000-801 Vila Real Portugal"}]},{"given":"Ana M.","family":"Botelho\u2005do\u2005Rego","sequence":"additional","affiliation":[{"name":"Centro de Qu\u00edmica-F\u00edsica Molecular and IN, Instituto Superior T\u00e9cnico Universidade de Lisboa  1049-001 Lisboa Portugal"}]},{"given":"Ana M.","family":"Ferraria","sequence":"additional","affiliation":[{"name":"Centro de Qu\u00edmica-F\u00edsica Molecular and IN, Instituto Superior T\u00e9cnico Universidade de Lisboa  1049-001 Lisboa Portugal"}]},{"given":"Lu\u00eds F. 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