Photoelectrocatalytic reduction of CO2 to methanol over CuFe2O4@PANI photocathode

The present study was aimed to convert CO2 into methanol which not only addresses the potential solution for controlling the CO2 concentration level in the atmosphere but also offers an alternative approach for the production of renewable energy source. In this perspective, a hybrid photocatalyst, P...

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Main Authors: Md.Rezaul, Karim, Tarek, Mostafa, Shaheen, M. Sarkar, Mouras, Rabah, Ong, Huei Ruey, Hamidah, Abdullah, Cheng, C. K., Khan, Md. Maksudur Rahman
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Language:English
English
Published: Elsevier Ltd 2020
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Online Access:http://umpir.ump.edu.my/id/eprint/34404/1/Photoelectrocatalytic%20reduction%20of%20CO2%20to%20methanol%20over_FULL.pdf
http://umpir.ump.edu.my/id/eprint/34404/2/Photoelectrocatalytic%20reduction%20of%20CO2%20to%20methanol%20over.pdf
http://umpir.ump.edu.my/id/eprint/34404/
https://doi.org/10.1016/j.ijhydene.2020.02.195
https://doi.org/10.1016/j.ijhydene.2020.02.195
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spelling my.ump.umpir.344042023-08-14T05:39:47Z http://umpir.ump.edu.my/id/eprint/34404/ Photoelectrocatalytic reduction of CO2 to methanol over CuFe2O4@PANI photocathode Md.Rezaul, Karim Tarek, Mostafa Shaheen, M. Sarkar Mouras, Rabah Ong, Huei Ruey Hamidah, Abdullah Cheng, C. K. Khan, Md. Maksudur Rahman T Technology (General) TP Chemical technology The present study was aimed to convert CO2 into methanol which not only addresses the potential solution for controlling the CO2 concentration level in the atmosphere but also offers an alternative approach for the production of renewable energy source. In this perspective, a hybrid photocatalyst, PANI@CuFe2O4 was synthesized, characterized and used as a photocathode for photoelectrocatalytic (PEC) reduction of CO2 to methanol in aqueous medium at an applied potential of −0.4 V vs NHE under visible light irradiation. The combination of PANI with CuFe2O4 greatly increased the PEC CO2 reduction to methanol owing to enhance the CO2 chemisorption capacity by the photocathode surface and at the same time facilitated the separation of photogenerated electron-hole (e−/h+) pairs. The incident photon to current efficiency (IPCE) and quantum efficiency (QE) for methanol formation in PEC CO2 reduction could be achieved as 7.1 and 24.0% respectively. The rate of formation of methanol in PEC CO2 reduction was found as 49.3 μmol g−1h−1 with 73% Faradaic efficiency. Compared to photocatalytic reaction, the PEC results demonstrated that the applied potential could effectively separate the photogenerated e−/h+ pairs and therefore, enhanced the PEC CO2 reduction activity of the hybrid photocatalyst. Elsevier Ltd 2020 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/34404/1/Photoelectrocatalytic%20reduction%20of%20CO2%20to%20methanol%20over_FULL.pdf pdf en http://umpir.ump.edu.my/id/eprint/34404/2/Photoelectrocatalytic%20reduction%20of%20CO2%20to%20methanol%20over.pdf Md.Rezaul, Karim and Tarek, Mostafa and Shaheen, M. Sarkar and Mouras, Rabah and Ong, Huei Ruey and Hamidah, Abdullah and Cheng, C. K. and Khan, Md. Maksudur Rahman (2020) Photoelectrocatalytic reduction of CO2 to methanol over CuFe2O4@PANI photocathode. International Journal of Hydrogen Energy, 46 (48). pp. 1-12. ISSN 0360-3199. (Unpublished) (Unpublished) https://doi.org/10.1016/j.ijhydene.2020.02.195 https://doi.org/10.1016/j.ijhydene.2020.02.195
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
English
topic T Technology (General)
TP Chemical technology
spellingShingle T Technology (General)
TP Chemical technology
Md.Rezaul, Karim
Tarek, Mostafa
Shaheen, M. Sarkar
Mouras, Rabah
Ong, Huei Ruey
Hamidah, Abdullah
Cheng, C. K.
Khan, Md. Maksudur Rahman
Photoelectrocatalytic reduction of CO2 to methanol over CuFe2O4@PANI photocathode
description The present study was aimed to convert CO2 into methanol which not only addresses the potential solution for controlling the CO2 concentration level in the atmosphere but also offers an alternative approach for the production of renewable energy source. In this perspective, a hybrid photocatalyst, PANI@CuFe2O4 was synthesized, characterized and used as a photocathode for photoelectrocatalytic (PEC) reduction of CO2 to methanol in aqueous medium at an applied potential of −0.4 V vs NHE under visible light irradiation. The combination of PANI with CuFe2O4 greatly increased the PEC CO2 reduction to methanol owing to enhance the CO2 chemisorption capacity by the photocathode surface and at the same time facilitated the separation of photogenerated electron-hole (e−/h+) pairs. The incident photon to current efficiency (IPCE) and quantum efficiency (QE) for methanol formation in PEC CO2 reduction could be achieved as 7.1 and 24.0% respectively. The rate of formation of methanol in PEC CO2 reduction was found as 49.3 μmol g−1h−1 with 73% Faradaic efficiency. Compared to photocatalytic reaction, the PEC results demonstrated that the applied potential could effectively separate the photogenerated e−/h+ pairs and therefore, enhanced the PEC CO2 reduction activity of the hybrid photocatalyst.
format Article
author Md.Rezaul, Karim
Tarek, Mostafa
Shaheen, M. Sarkar
Mouras, Rabah
Ong, Huei Ruey
Hamidah, Abdullah
Cheng, C. K.
Khan, Md. Maksudur Rahman
author_facet Md.Rezaul, Karim
Tarek, Mostafa
Shaheen, M. Sarkar
Mouras, Rabah
Ong, Huei Ruey
Hamidah, Abdullah
Cheng, C. K.
Khan, Md. Maksudur Rahman
author_sort Md.Rezaul, Karim
title Photoelectrocatalytic reduction of CO2 to methanol over CuFe2O4@PANI photocathode
title_short Photoelectrocatalytic reduction of CO2 to methanol over CuFe2O4@PANI photocathode
title_full Photoelectrocatalytic reduction of CO2 to methanol over CuFe2O4@PANI photocathode
title_fullStr Photoelectrocatalytic reduction of CO2 to methanol over CuFe2O4@PANI photocathode
title_full_unstemmed Photoelectrocatalytic reduction of CO2 to methanol over CuFe2O4@PANI photocathode
title_sort photoelectrocatalytic reduction of co2 to methanol over cufe2o4@pani photocathode
publisher Elsevier Ltd
publishDate 2020
url http://umpir.ump.edu.my/id/eprint/34404/1/Photoelectrocatalytic%20reduction%20of%20CO2%20to%20methanol%20over_FULL.pdf
http://umpir.ump.edu.my/id/eprint/34404/2/Photoelectrocatalytic%20reduction%20of%20CO2%20to%20methanol%20over.pdf
http://umpir.ump.edu.my/id/eprint/34404/
https://doi.org/10.1016/j.ijhydene.2020.02.195
https://doi.org/10.1016/j.ijhydene.2020.02.195
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