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@article{ART002958990},
author={Karrab Assia and Bensimon Remi and Muller Diane and Bastide Stéphane and Cachet-Vivier Christine and Ammar Salah},
title={Photoelectrochemical and electrochemical urea oxidation with microwave-assisted synthesized Co-Fe2O3@NiO core–shell nanocomposites},
journal={Carbon Letters},
issn={1976-4251},
year={2022},
volume={32},
number={4},
pages={999-1015},
doi={10.1007/s42823-022-00333-x}

TY - JOUR
AU - Karrab Assia
AU - Bensimon Remi
AU - Muller Diane
AU - Bastide Stéphane
AU - Cachet-Vivier Christine
AU - Ammar Salah
TI - Photoelectrochemical and electrochemical urea oxidation with microwave-assisted synthesized Co-Fe2O3@NiO core–shell nanocomposites
JO - Carbon Letters
PY - 2022
VL - 32
IS - 4
PB - Korean Carbon Society
SP - 999
EP - 1015
SN - 1976-4251
AB - This work reported the electrochemical and photoelectrochemical (PEC) properties of a new photoelectrode based on hematite Co-Fe2O3@NiO, a photoactive semiconductor, was prepared using a process involving a combination of the co-precipitation and microwave-assisted synthesis of Fe2O3, Co-Fe2O3 and Co-Fe2O3@NiO, respectively. The obtained products were characterized by X-Ray powder Diffraction (XRD), Scanning Electron Microscope (SEM), Energy Dispersive X-ray analysis (EDX), Ultraviolet–Visible (UV–vis) analysis, Fourier Transform Infrared spectroscopy (FT-IR). X-ray diffraction (XRD) pattern of the sample determined the crystal structure of α-Fe2O3 nanoparticles. The SEM image shows spherical nanoparticles. FTIR spectrospy spectrum confirmed the phase purity and chemical bond for the sample. Optical studies show a variation of band gap from 2.118 to 2.07 eV. The electrochemical and photoelectrochemical (PEC) performance of the films were examined by cyclic voltammetry, linear sweep voltammetry and chronoamperometry. The electrochemical oxidation of water achieved by Cobalt-doped Fe2O3@GCE modified electrode exhibited the current density of 21 mA/g at 0.5 V vs. SCE for 5 at% of Co and reveals enhanced specific capacitance of 352.11 F/g. The catalytic performance of urea oxidation was measured by cyclic voltammetry on Co-Fe2O3@NiO nanoparticles modified glassy carbon electrode (GCE) in alkaline medium. The electrode Co-Fe2O3@NiO without annealing showed a peak current density of 1.59 mA/cm2 at 0.1 M urea in 1.0 M NaOH, which was 3.6 fold higher than that of Co-Fe2O3@NiO with annealing. In another part, this work reported the photoelectrochemical (PEC) properties of photoanode prepared by spin coating. The highest photocurrent 0.042 mA/cm2 at 0.5 V Vs SCE was obtained for 5% Co-Fe2O3@NiO while the photocatalytic oxidation of urea.
KW - Hematite Urea Nickel Glassy carbon electrode (GCE) Photoelectrochemical oxidation
DO - 10.1007/s42823-022-00333-x
ER -

Karrab Assia, Bensimon Remi, Muller Diane, Bastide Stéphane, Cachet-Vivier Christine and Ammar Salah. (2022). Photoelectrochemical and electrochemical urea oxidation with microwave-assisted synthesized Co-Fe2O3@NiO core–shell nanocomposites. Carbon Letters, 32(4), 999-1015.

Karrab Assia, Bensimon Remi, Muller Diane, Bastide Stéphane, Cachet-Vivier Christine and Ammar Salah. 2022, "Photoelectrochemical and electrochemical urea oxidation with microwave-assisted synthesized Co-Fe2O3@NiO core–shell nanocomposites", Carbon Letters, vol.32, no.4 pp.999-1015. Available from: doi:10.1007/s42823-022-00333-x

Karrab Assia, Bensimon Remi, Muller Diane, Bastide Stéphane, Cachet-Vivier Christine, Ammar Salah "Photoelectrochemical and electrochemical urea oxidation with microwave-assisted synthesized Co-Fe2O3@NiO core–shell nanocomposites" Carbon Letters 32.4 pp.999-1015 (2022) : 999.

Karrab Assia, Bensimon Remi, Muller Diane, Bastide Stéphane, Cachet-Vivier Christine, Ammar Salah. Photoelectrochemical and electrochemical urea oxidation with microwave-assisted synthesized Co-Fe2O3@NiO core–shell nanocomposites. 2022; 32(4), 999-1015. Available from: doi:10.1007/s42823-022-00333-x

Karrab Assia, Bensimon Remi, Muller Diane, Bastide Stéphane, Cachet-Vivier Christine and Ammar Salah. "Photoelectrochemical and electrochemical urea oxidation with microwave-assisted synthesized Co-Fe2O3@NiO core–shell nanocomposites" Carbon Letters 32, no.4 (2022) : 999-1015.doi: 10.1007/s42823-022-00333-x

Karrab Assia; Bensimon Remi; Muller Diane; Bastide Stéphane; Cachet-Vivier Christine; Ammar Salah. Photoelectrochemical and electrochemical urea oxidation with microwave-assisted synthesized Co-Fe2O3@NiO core–shell nanocomposites. Carbon Letters, 32(4), 999-1015. doi: 10.1007/s42823-022-00333-x

Karrab Assia; Bensimon Remi; Muller Diane; Bastide Stéphane; Cachet-Vivier Christine; Ammar Salah. Photoelectrochemical and electrochemical urea oxidation with microwave-assisted synthesized Co-Fe2O3@NiO core–shell nanocomposites. Carbon Letters. 2022; 32(4) 999-1015. doi: 10.1007/s42823-022-00333-x

Karrab Assia, Bensimon Remi, Muller Diane, Bastide Stéphane, Cachet-Vivier Christine, Ammar Salah. Photoelectrochemical and electrochemical urea oxidation with microwave-assisted synthesized Co-Fe2O3@NiO core–shell nanocomposites. 2022; 32(4), 999-1015. Available from: doi:10.1007/s42823-022-00333-x

Karrab Assia, Bensimon Remi, Muller Diane, Bastide Stéphane, Cachet-Vivier Christine and Ammar Salah. "Photoelectrochemical and electrochemical urea oxidation with microwave-assisted synthesized Co-Fe2O3@NiO core–shell nanocomposites" Carbon Letters 32, no.4 (2022) : 999-1015.doi: 10.1007/s42823-022-00333-x