@misc{10481/61699,
year = {2019},
month = {7},
url = {http://hdl.handle.net/10481/61699},
abstract = {A total of two carbon xerogels doped with cobalt and nickel were prepared by the sol–gel
method. The obtained carbon xerogels underwent further surface modification with three binary
metal oxides namely: nickel cobaltite, nickel ferrite, and cobalt ferrite through the hydrothermal
method. The mesopore volumes of these materials ranged between 0.24 and 0.40 cm3/g. Moreover,
there was a morphology transformation for the carbon xerogels doped with nickel cobaltite, which
is in the form of nano-needles after the hydrothermal process. Whereas the carbon xerogels doped
with nickel ferrite and cobalt ferrite maintained the normal carbon xerogel structure after the
hydrothermal process. The prepared materials were tested as electrocatalysts for oxygen reduction
reaction using 0.1 M KOH. Among the prepared carbon xerogels cobalt-doped carbon xerogel had
better electrocatalytic performance than the nickel-doped ones. Moreover, the carbon xerogels doped
with nickel cobaltite showed excellent activity for oxygen reduction reaction due to mesoporosity
development. NiCo2O4/Co-CX showed to be the best electrocatalyst of all the prepared electrocatalysts
for oxygen reduction reaction application, exhibiting the highest electrocatalytic activity, lowest onset
potential Eonset of -0.06 V, and the lowest equivalent series resistance (ESR) of 2.74 W.},
organization = {This research was funded by science and technology development fund [STDF] grant number [STF-25402]
and from the project P12-RNM-2892 (Junta de Andalucía).},
publisher = {MDPI},
keywords = {Carbon gels},
keywords = {Oxygen reduction reaction},
keywords = {Mesoporosity},
keywords = {Electro-catalysis},
title = {Carbon Xerogels Hydrothermally Doped with Bimetal Oxides for Oxygen Reduction Reaction},
doi = {10.3390/ma12152446},
author = {Abdelwahab, Abdalla and Carrascosa Martínez, José Manuel and Pérez Cadenas, Agustín Francisco},
}