1Faculty of Chemical and Natural Resources Engineering, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 26300 Kuantan, Pahang, Malaysia
2Faculty of Engineering and Technology, DRB-HICOM University of Automotive Malaysia, 26607 Pekan, Pahang, Malaysia
3Faculty of Engineering Technology, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 26300 Kuantan, Pahang, Malaysia
BibTex Citation Data :
@article{BCREC1317, author = {Kaykobad Md. Rezaul Karim and Huei Ruey Ong and Hamidah Abdullah and Abu Yousuf and Chin Kui Cheng and Mohd. Maksudur Rahman Khan}, title = {Electrochemical Study of Copper Ferrite as a Catalyst for CO2 Photoelectrochemical Reduction}, journal = {Bulletin of Chemical Reaction Engineering & Catalysis}, volume = {13}, number = {2}, year = {2018}, keywords = {CuFe2O4; CO2 reduction; onset potential; photoelectrochemical reduction; linear sweep voltammetry}, abstract = { In this work, p-type CuFe 2 O 4 was synthesized by sol gel method. The prepared CuFe 2 O 4 was used as photocathode catalyst for photoelectrochemical (PEC) CO 2 reduction. The XRD, UV-Visible Spectroscopy (UV-Vis), and Mott-Schottky (MS) experiments were done to characterize the catalyst. Linear sweep voltammetry (LSV) was employed to evaluate the visible light (λ>400 nm) effect of this catalyst for CO 2 reduction. The band gap energy of the catalyst was calculated from the UV-Vis and was found 1.30 eV. Flat band potential of the prepared CuFe 2 O 4 was also calculated and found 0.27 V versus Ag/AgCl. Under light irradiation in the CO 2 -saturated NaHCO 3 solution, a remarkable current development associated with CO 2 reduction was found during LSV for the prepared electrode from onset potential -0.89 V with a peak current emerged at -1.01 V (vs Ag/AgCl) representing the occurrence of CO 2 reduction reaction. In addition, the mechanism of PEC was proposed for the photocathode where the necessity of a bias potential in the range of 0.27 to ~ -1.0 V vs Ag/AgCl was identified which could effectively inhibit the electron-hole (e - /h + ) recombination process leading to an enhancement of CO 2 reduction reactions. }, issn = {1978-2993}, pages = {236--244} doi = {10.9767/bcrec.13.2.1317.236-244}, url = {https://journal.bcrec.id/index.php/bcrec/article/view/1317} }
Refworks Citation Data :
In this work, p-type CuFe2O4 was synthesized by sol gel method. The prepared CuFe2O4 was used as photocathode catalyst for photoelectrochemical (PEC) CO2 reduction. The XRD, UV-Visible Spectroscopy (UV-Vis), and Mott-Schottky (MS) experiments were done to characterize the catalyst. Linear sweep voltammetry (LSV) was employed to evaluate the visible light (λ>400 nm) effect of this catalyst for CO2 reduction. The band gap energy of the catalyst was calculated from the UV-Vis and was found 1.30 eV. Flat band potential of the prepared CuFe2O4 was also calculated and found 0.27 V versus Ag/AgCl. Under light irradiation in the CO2-saturated NaHCO3 solution, a remarkable current development associated with CO2 reduction was found during LSV for the prepared electrode from onset potential -0.89 V with a peak current emerged at -1.01 V (vs Ag/AgCl) representing the occurrence of CO2 reduction reaction. In addition, the mechanism of PEC was proposed for the photocathode where the necessity of a bias potential in the range of 0.27 to ~ -1.0 V vs Ag/AgCl was identified which could effectively inhibit the electron-hole (e-/h+) recombination process leading to an enhancement of CO2 reduction reactions.
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