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Electrochemical study of copper ferrite as a catalyst for CO2 photoelectrochemical reduction

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 volt...

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Main Authors: Karim, Kaykobad Md Rezaul, Huei, Ruey Ong, Hamidah, Abdullah, Yousuf, Abu, Cheng, C. K., Khan, Maksudur R.
Format: Article
Language:English
Published: Department of Chemical Engineering, Diponegoro University 2018
Subjects:
T Technology (General)
TP Chemical technology
Online Access:http://umpir.ump.edu.my/id/eprint/21347/1/Electrochemical%20study%20of%20copper%20ferrite%20as%20a%20catalyst%20for%20CO2%20Photoelectrochemical%20reduction.pdf
http://umpir.ump.edu.my/id/eprint/21347/
https://doi.org/10.9767/bcrec.13.2.1317.236-244
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spelling my.ump.umpir.213472018-08-30T04:03:43Z http://umpir.ump.edu.my/id/eprint/21347/ Electrochemical study of copper ferrite as a catalyst for CO2 photoelectrochemical reduction Karim, Kaykobad Md Rezaul Huei, Ruey Ong Hamidah, Abdullah Yousuf, Abu Cheng, C. K. Khan, Maksudur R. T Technology (General) TP Chemical technology 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. Department of Chemical Engineering, Diponegoro University 2018-08 Article PeerReviewed pdf en cc_by_sa_4 http://umpir.ump.edu.my/id/eprint/21347/1/Electrochemical%20study%20of%20copper%20ferrite%20as%20a%20catalyst%20for%20CO2%20Photoelectrochemical%20reduction.pdf Karim, Kaykobad Md Rezaul and Huei, Ruey Ong and Hamidah, Abdullah and Yousuf, Abu and Cheng, C. K. and Khan, Maksudur R. (2018) Electrochemical study of copper ferrite as a catalyst for CO2 photoelectrochemical reduction. Bulletin of Chemical Reaction Engineering & Catalysis, 13 (2). pp. 236-244. ISSN 1978-2993 https://doi.org/10.9767/bcrec.13.2.1317.236-244 10.9767/bcrec.13.2.1317.236-244
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic T Technology (General)
TP Chemical technology
spellingShingle T Technology (General)
TP Chemical technology
Karim, Kaykobad Md Rezaul
Huei, Ruey Ong
Hamidah, Abdullah
Yousuf, Abu
Cheng, C. K.
Khan, Maksudur R.
Electrochemical study of copper ferrite as a catalyst for CO2 photoelectrochemical reduction
description 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.
format Article
author Karim, Kaykobad Md Rezaul
Huei, Ruey Ong
Hamidah, Abdullah
Yousuf, Abu
Cheng, C. K.
Khan, Maksudur R.
author_facet Karim, Kaykobad Md Rezaul
Huei, Ruey Ong
Hamidah, Abdullah
Yousuf, Abu
Cheng, C. K.
Khan, Maksudur R.
author_sort Karim, Kaykobad Md Rezaul
title Electrochemical study of copper ferrite as a catalyst for CO2 photoelectrochemical reduction
title_short Electrochemical study of copper ferrite as a catalyst for CO2 photoelectrochemical reduction
title_full Electrochemical study of copper ferrite as a catalyst for CO2 photoelectrochemical reduction
title_fullStr Electrochemical study of copper ferrite as a catalyst for CO2 photoelectrochemical reduction
title_full_unstemmed Electrochemical study of copper ferrite as a catalyst for CO2 photoelectrochemical reduction
title_sort electrochemical study of copper ferrite as a catalyst for co2 photoelectrochemical reduction
publisher Department of Chemical Engineering, Diponegoro University
publishDate 2018
url http://umpir.ump.edu.my/id/eprint/21347/1/Electrochemical%20study%20of%20copper%20ferrite%20as%20a%20catalyst%20for%20CO2%20Photoelectrochemical%20reduction.pdf
http://umpir.ump.edu.my/id/eprint/21347/
https://doi.org/10.9767/bcrec.13.2.1317.236-244
_version_ 1643669106779488256
score 13.211869

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