Noble metal nanoparticles and nanodiamond modified strontium titanate photocatalysts for room temperature CO production from direct hydrogenation of CO2
The activation and conversion of CO2 can be achieved on multifunctional catalytic sites at the metal/oxide interface by taking advantage of the synergy between noble metal nanoparticles and supports. Herein, sequential deposition of noble metals (Ru, Rh, and Pt) and nanodiamonds (NDs) was carried ou...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-12-01
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| Series: | Journal of CO2 Utilization |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2212982023002329 |
| _version_ | 1797506347788402688 |
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| author | Mohit Yadav Tamás Gyulavári Janos Kiss Kornélia B. Ábrahámné Anastasiia Efremova Ákos Szamosvölgyi Zsolt Pap András Sápi Ákos Kukovecz Zoltán Kónya |
| author_facet | Mohit Yadav Tamás Gyulavári Janos Kiss Kornélia B. Ábrahámné Anastasiia Efremova Ákos Szamosvölgyi Zsolt Pap András Sápi Ákos Kukovecz Zoltán Kónya |
| author_sort | Mohit Yadav |
| collection | DOAJ |
| description | The activation and conversion of CO2 can be achieved on multifunctional catalytic sites at the metal/oxide interface by taking advantage of the synergy between noble metal nanoparticles and supports. Herein, sequential deposition of noble metals (Ru, Rh, and Pt) and nanodiamonds (NDs) was carried out on the surface of strontium titanates (STO). The noble metals and NDs were deposited in either 1 wt% or 10 wt%. The samples were characterized with in-situ as well as ex-situ spectroscopic and microscopic techniques and tested towards photocatalytic CO2 hydrogenation. The sequential deposition of the noble metals and NDs enhanced light absorption properties, which also led to higher photocatalytic activity. The STO-ND-Ru sample had the highest photocatalytic CO2 hydrogenation efficiency (47.5%) and showed improved selectivity for CH4 (14.5%). Diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) studies showed that the hydrogenation of CO2 to CO and CH4 followed different mechanisms for pristine STO and STO-ND-Ru. |
| first_indexed | 2024-03-10T04:31:22Z |
| format | Article |
| id | doaj.art-fe69f9ab5c2a4e1e85a5d0608130697e |
| institution | Directory Open Access Journal |
| issn | 2212-9839 |
| language | English |
| last_indexed | 2024-03-10T04:31:22Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of CO2 Utilization |
| spelling | doaj.art-fe69f9ab5c2a4e1e85a5d0608130697e2023-11-23T04:28:19ZengElsevierJournal of CO2 Utilization2212-98392023-12-0178102621Noble metal nanoparticles and nanodiamond modified strontium titanate photocatalysts for room temperature CO production from direct hydrogenation of CO2Mohit Yadav0Tamás Gyulavári1Janos Kiss2Kornélia B. Ábrahámné3Anastasiia Efremova4Ákos Szamosvölgyi5Zsolt Pap6András Sápi7Ákos Kukovecz8Zoltán Kónya9Department of Applied and Environmental Chemistry, Interdisciplinary Excellence Centre, University of Szeged, H-6720, Rerrich Béla Sqr. 1, Szeged, HungaryDepartment of Applied and Environmental Chemistry, Interdisciplinary Excellence Centre, University of Szeged, H-6720, Rerrich Béla Sqr. 1, Szeged, HungaryDepartment of Applied and Environmental Chemistry, Interdisciplinary Excellence Centre, University of Szeged, H-6720, Rerrich Béla Sqr. 1, Szeged, HungaryDepartment of Applied and Environmental Chemistry, Interdisciplinary Excellence Centre, University of Szeged, H-6720, Rerrich Béla Sqr. 1, Szeged, HungaryDepartment of Applied and Environmental Chemistry, Interdisciplinary Excellence Centre, University of Szeged, H-6720, Rerrich Béla Sqr. 1, Szeged, HungaryDepartment of Applied and Environmental Chemistry, Interdisciplinary Excellence Centre, University of Szeged, H-6720, Rerrich Béla Sqr. 1, Szeged, HungaryDepartment of Applied and Environmental Chemistry, Interdisciplinary Excellence Centre, University of Szeged, H-6720, Rerrich Béla Sqr. 1, Szeged, Hungary; Nanostructured Materials and Bio-Nano-Interfaces Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babes-Bolyai University, Treboniu Laurian 42, RO-400271 Cluj-Napoca, Romania; Institute of Research-Development-Innovation in Applied Natural Sciences, Babes-Bolyai University, Fântânele Str. 30, RO-400294 Cluj-Napoca, Romania; Corresponding author at: Department of Applied and Environmental Chemistry, Interdisciplinary Excellence Centre, University of Szeged, H-6720, Rerrich Béla Sqr. 1, Szeged, Hungary.Department of Applied and Environmental Chemistry, Interdisciplinary Excellence Centre, University of Szeged, H-6720, Rerrich Béla Sqr. 1, Szeged, Hungary; Corresponding author.Department of Applied and Environmental Chemistry, Interdisciplinary Excellence Centre, University of Szeged, H-6720, Rerrich Béla Sqr. 1, Szeged, HungaryDepartment of Applied and Environmental Chemistry, Interdisciplinary Excellence Centre, University of Szeged, H-6720, Rerrich Béla Sqr. 1, Szeged, Hungary; ELKH-SZTE Reaction Kinetics and Surface Chemistry Research Group, University of Szeged, Rerrich Béla tér 1, Szeged 6720, HungaryThe activation and conversion of CO2 can be achieved on multifunctional catalytic sites at the metal/oxide interface by taking advantage of the synergy between noble metal nanoparticles and supports. Herein, sequential deposition of noble metals (Ru, Rh, and Pt) and nanodiamonds (NDs) was carried out on the surface of strontium titanates (STO). The noble metals and NDs were deposited in either 1 wt% or 10 wt%. The samples were characterized with in-situ as well as ex-situ spectroscopic and microscopic techniques and tested towards photocatalytic CO2 hydrogenation. The sequential deposition of the noble metals and NDs enhanced light absorption properties, which also led to higher photocatalytic activity. The STO-ND-Ru sample had the highest photocatalytic CO2 hydrogenation efficiency (47.5%) and showed improved selectivity for CH4 (14.5%). Diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) studies showed that the hydrogenation of CO2 to CO and CH4 followed different mechanisms for pristine STO and STO-ND-Ru.http://www.sciencedirect.com/science/article/pii/S2212982023002329Strontium titanateNoble metalsNanodiamondsCarbon dioxidePhotocatalysis |
| spellingShingle | Mohit Yadav Tamás Gyulavári Janos Kiss Kornélia B. Ábrahámné Anastasiia Efremova Ákos Szamosvölgyi Zsolt Pap András Sápi Ákos Kukovecz Zoltán Kónya Noble metal nanoparticles and nanodiamond modified strontium titanate photocatalysts for room temperature CO production from direct hydrogenation of CO2 Journal of CO2 Utilization Strontium titanate Noble metals Nanodiamonds Carbon dioxide Photocatalysis |
| title | Noble metal nanoparticles and nanodiamond modified strontium titanate photocatalysts for room temperature CO production from direct hydrogenation of CO2 |
| title_full | Noble metal nanoparticles and nanodiamond modified strontium titanate photocatalysts for room temperature CO production from direct hydrogenation of CO2 |
| title_fullStr | Noble metal nanoparticles and nanodiamond modified strontium titanate photocatalysts for room temperature CO production from direct hydrogenation of CO2 |
| title_full_unstemmed | Noble metal nanoparticles and nanodiamond modified strontium titanate photocatalysts for room temperature CO production from direct hydrogenation of CO2 |
| title_short | Noble metal nanoparticles and nanodiamond modified strontium titanate photocatalysts for room temperature CO production from direct hydrogenation of CO2 |
| title_sort | noble metal nanoparticles and nanodiamond modified strontium titanate photocatalysts for room temperature co production from direct hydrogenation of co2 |
| topic | Strontium titanate Noble metals Nanodiamonds Carbon dioxide Photocatalysis |
| url | http://www.sciencedirect.com/science/article/pii/S2212982023002329 |
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