RT Journal Article T1 Organometallic-Derived Carbon (ODC)−Metal Nano-Oxide Composites as Improved Electrode Materials for Supercapacitors A1 Ávila Brande, David A1 Otero Díaz, Luis Carlos A1 Arenas Esteban, Daniel A1 Birss, Viola A1 Carretero González, Javier A1 Urones Garrote, Esteban AB In the search for the new generation of electrochemical energy storage materials, a novel and straightforward synthetic route for porous carbons and metal oxide nanoparticle composites based on the chlorination of the organometallic compounds Ni(C5H5)2 and Mn(C5H7O2)2 at moderate temperatures, followed by hydrothermal treatment, has been developed. Electrochemical measurements in a three-electrode configuration show that, in both composites NiO@ODC and Mn3O4@ODC, a synergistic effect between the capacitive and pseudocapacitive energy storage mechanisms is observed, thereby improving their electrochemical performance vs pure carbon materials. Electrochemical evaluation of symmetric cells gave gravimetric capacitances of 124 and 130 F g–1 for NiO@ODC and Mn3O4@ODC, respectively. However, the porous structure of the carbon matrix and the higher conductivity of Mn3O4, together, were found to be responsible for the superior electrochemical performance of Mn3O4@ODC. PB ACS Publications YR 2019 FD 2019-07-01 LK https://hdl.handle.net/20.500.14352/132963 UL https://hdl.handle.net/20.500.14352/132963 LA eng NO Daniel Arenas-Esteban, Esteban Urones-Garrote, Javier Carretero-González, Viola Birss, L. Carlos Otero-Díaz, and David Ávila-Brande Inorganic Chemistry 2019 58 (14), 9175-9180 NO Comunidad de Madrid NO Ministerio de Economía, Industria y Competitividad DS Docta Complutense RD 26 feb 2026