A Synergic Effect of Bi-metallic Layered Hydro-Oxide Cocatalyst on 1-D TiO2 Driven Photoelectrochemical Water Splitting
ABSTRACTPhotoelectrochemical (PEC) water splitting is one of the most sustainable approaches for converting solar energy into hydrogen fuel. Affordable and robust photoelectrodes are crucial for the commercialization of PEC technologies. Recently, transition metal-based co-catalysts, especially Ni-...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2023-07-01
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| Series: | Journal of Asian Ceramic Societies |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/21870764.2023.2237358 |
| _version_ | 1797737700989599744 |
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| author | Rana Basit Ali Qadeer Akbar Sial Young Jae Lee Muhammad Waqas Shankara S. Kalanur Hyungtak Seo |
| author_facet | Rana Basit Ali Qadeer Akbar Sial Young Jae Lee Muhammad Waqas Shankara S. Kalanur Hyungtak Seo |
| author_sort | Rana Basit Ali |
| collection | DOAJ |
| description | ABSTRACTPhotoelectrochemical (PEC) water splitting is one of the most sustainable approaches for converting solar energy into hydrogen fuel. Affordable and robust photoelectrodes are crucial for the commercialization of PEC technologies. Recently, transition metal-based co-catalysts, especially Ni- and Fe-based catalysts, have attracted much interest owing to their exceptional OER characteristics. Given this, we here proposed the decoration of a Fe-Ni-based cocatalyst on the surface of the TiO2 photoanode for PEC water splitting. The TiO2 photoanode was hydrothermally synthesized and then decorated by Fe-Ni hydroxide catalyst using photo-assisted electrodeposition. The optimized TiO2/FeNiOOH photoanode exhibited the maximum photocurrent density value of 1.36 mA cm−2, which is almost twice the value obtained for bare TiO2, at 1.23 V vs RHE under the AM 1.5 G illumination. Due to the enhanced light absorption in the UV region, the optimized photoanode exhibited remarkable IPCE and photoconversion efficiency of 87.8% and 0.93%, respectively. Furthermore, excellent faradaic efficiencies of ∼90% for H2 and ∼70% for O2 generations were obtained. Predominantly, the enhancement in the photocurrent potentials was explained in detail. Our study shows the roles and benefits of using bimetallic catalysts with TiO2 photoanodes for sustainable water-splitting applications. |
| first_indexed | 2024-03-12T13:32:14Z |
| format | Article |
| id | doaj.art-44fbfdaf553b412baf72a4a29faf85d2 |
| institution | Directory Open Access Journal |
| issn | 2187-0764 |
| language | English |
| last_indexed | 2024-03-12T13:32:14Z |
| publishDate | 2023-07-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Asian Ceramic Societies |
| spelling | doaj.art-44fbfdaf553b412baf72a4a29faf85d22023-08-24T08:13:20ZengTaylor & Francis GroupJournal of Asian Ceramic Societies2187-07642023-07-0111342443510.1080/21870764.2023.2237358A Synergic Effect of Bi-metallic Layered Hydro-Oxide Cocatalyst on 1-D TiO2 Driven Photoelectrochemical Water SplittingRana Basit Ali0Qadeer Akbar Sial1Young Jae Lee2Muhammad Waqas3Shankara S. Kalanur4Hyungtak Seo5Department of Energy Systems Research, Ajou University, Suwon, Republic of KoreaDepartment of Energy Systems Research, Ajou University, Suwon, Republic of KoreaDepartment of Energy Systems Research, Ajou University, Suwon, Republic of KoreaDepartment of Energy Systems Research, Ajou University, Suwon, Republic of KoreaHydrogen Research Institute, Université du Québec à Trois-Rivières, Quebec, CanadaDepartment of Energy Systems Research, Ajou University, Suwon, Republic of KoreaABSTRACTPhotoelectrochemical (PEC) water splitting is one of the most sustainable approaches for converting solar energy into hydrogen fuel. Affordable and robust photoelectrodes are crucial for the commercialization of PEC technologies. Recently, transition metal-based co-catalysts, especially Ni- and Fe-based catalysts, have attracted much interest owing to their exceptional OER characteristics. Given this, we here proposed the decoration of a Fe-Ni-based cocatalyst on the surface of the TiO2 photoanode for PEC water splitting. The TiO2 photoanode was hydrothermally synthesized and then decorated by Fe-Ni hydroxide catalyst using photo-assisted electrodeposition. The optimized TiO2/FeNiOOH photoanode exhibited the maximum photocurrent density value of 1.36 mA cm−2, which is almost twice the value obtained for bare TiO2, at 1.23 V vs RHE under the AM 1.5 G illumination. Due to the enhanced light absorption in the UV region, the optimized photoanode exhibited remarkable IPCE and photoconversion efficiency of 87.8% and 0.93%, respectively. Furthermore, excellent faradaic efficiencies of ∼90% for H2 and ∼70% for O2 generations were obtained. Predominantly, the enhancement in the photocurrent potentials was explained in detail. Our study shows the roles and benefits of using bimetallic catalysts with TiO2 photoanodes for sustainable water-splitting applications.https://www.tandfonline.com/doi/10.1080/21870764.2023.2237358TiO2 NRsPhoto assisted electrodepositionBi-metallic cocatalystPEC water splittingH2 production |
| spellingShingle | Rana Basit Ali Qadeer Akbar Sial Young Jae Lee Muhammad Waqas Shankara S. Kalanur Hyungtak Seo A Synergic Effect of Bi-metallic Layered Hydro-Oxide Cocatalyst on 1-D TiO2 Driven Photoelectrochemical Water Splitting Journal of Asian Ceramic Societies TiO2 NRs Photo assisted electrodeposition Bi-metallic cocatalyst PEC water splitting H2 production |
| title | A Synergic Effect of Bi-metallic Layered Hydro-Oxide Cocatalyst on 1-D TiO2 Driven Photoelectrochemical Water Splitting |
| title_full | A Synergic Effect of Bi-metallic Layered Hydro-Oxide Cocatalyst on 1-D TiO2 Driven Photoelectrochemical Water Splitting |
| title_fullStr | A Synergic Effect of Bi-metallic Layered Hydro-Oxide Cocatalyst on 1-D TiO2 Driven Photoelectrochemical Water Splitting |
| title_full_unstemmed | A Synergic Effect of Bi-metallic Layered Hydro-Oxide Cocatalyst on 1-D TiO2 Driven Photoelectrochemical Water Splitting |
| title_short | A Synergic Effect of Bi-metallic Layered Hydro-Oxide Cocatalyst on 1-D TiO2 Driven Photoelectrochemical Water Splitting |
| title_sort | synergic effect of bi metallic layered hydro oxide cocatalyst on 1 d tio2 driven photoelectrochemical water splitting |
| topic | TiO2 NRs Photo assisted electrodeposition Bi-metallic cocatalyst PEC water splitting H2 production |
| url | https://www.tandfonline.com/doi/10.1080/21870764.2023.2237358 |
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