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...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English English |
| Published: |
Elsevier Ltd
2020
|
| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/34404/ 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 |
| _version_ | 1848824497498488832 |
|---|---|
| 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 |
| building | UMP Institutional Repository |
| collection | Online Access |
| 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. |
| first_indexed | 2025-11-15T03:13:58Z |
| format | Article |
| id | ump-34404 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T03:13:58Z |
| publishDate | 2020 |
| publisher | Elsevier Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-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 |
| 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 |
| title | 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_short | Photoelectrocatalytic reduction of CO2 to methanol over CuFe2O4@PANI photocathode |
| title_sort | photoelectrocatalytic reduction of co2 to methanol over cufe2o4@pani photocathode |
| topic | T Technology (General) TP Chemical technology |
| url | http://umpir.ump.edu.my/id/eprint/34404/ http://umpir.ump.edu.my/id/eprint/34404/ http://umpir.ump.edu.my/id/eprint/34404/ 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 |