Gómez-López, Paulette Salatti Dorado, José Ángel Rodríguez-Padrón, Daily Cano, Manuel Alvarado-Beltrán, Clemente G. Puente-Santiago, A.R. Giner-Casares, Juan J. Luque, Rafael 2021-01-25T08:21:57Z 2021-01-25T08:21:57Z 2021 http://hdl.handle.net/10396/21010 We report a new class of polyacrylonitrile (PAN)-based Co-N-doped carbon materials that can act as suitable catalyst for oxygen evolution reactions (OER). Different Co loadings were mechanochemically added into post-consumed PAN fibers. Subsequently, the samples were treated at 300 °C under air (PAN-A) or nitrogen (PAN-N) atmosphere to promote simultaneously the Co3O4 species and PAN cyclization. The resulting electrocatalysts were fully characterized and analyzed by X-ray diffraction (XRD) and photoelectron spectroscopy (XPS), transmission (TEM) and scanning electron (SEM) microscopies, as well as nitrogen porosimetry. The catalytic performance of the Co-N-doped carbon nanomaterials were tested for OER in alkaline environments. Cobalt-doped PAN-A samples showed worse OER electrocatalytic performance than their homologous PAN-N ones. The PAN-N/3% Co catalyst exhibited the lowest OER overpotential (460 mV) among all the Co-N-doped carbon nanocomposites, reaching 10 mA/cm2. This work provides in-depth insights on the electrocatalytic performance of metal-doped carbon nanomaterials for OER. application/pdf eng MDPI https://creativecommons.org/licenses/by/4.0/ Nanomaterials 11(2), 290 (2021) Mechanochemical synthesis Carbon N-doped Co2O3 nanoparticles PAN OER Mechanochemically Synthetized PAN-Based Co-N-Doped Carbon Materials as Electrocatalyst for Oxygen Evolution Reaction info:eu-repo/semantics/article http://dx.doi.org/10.3390/nano11020290 Junta de Andalucía. UCO-1263193 Gobierno de España. RyC-2014-14956 Gobierno de España. CTQ2017-83961-R Gobierno de España. CTQ2017-92264-EXP info:eu-repo/semantics/openAccess