Sol-gel mediated synthesis and characterization of hierarchically porous Fe2O3/SiO2 monolithic catalyst for high temperature sulfuric acid decomposition
To address the issues faced by microparticulate catalysts in fixed bed reactors for high temperature sulfuric acid decomposition viz. channeling and mass transfer, we report the preparation, characterization of Fe2O3/SiO2 hierarchical porous monoliths and testing of its catalytic properties. Monolit...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-06-01
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| Series: | Catalysis Communications |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1566736723000882 |
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| author | Neelesh Kumar Atindra Mohan Banerjee M.R. Pai Sher Singh Meena A.K. Patra P.U. Sastry Jagannath A.K. Tripathi |
| author_facet | Neelesh Kumar Atindra Mohan Banerjee M.R. Pai Sher Singh Meena A.K. Patra P.U. Sastry Jagannath A.K. Tripathi |
| author_sort | Neelesh Kumar |
| collection | DOAJ |
| description | To address the issues faced by microparticulate catalysts in fixed bed reactors for high temperature sulfuric acid decomposition viz. channeling and mass transfer, we report the preparation, characterization of Fe2O3/SiO2 hierarchical porous monoliths and testing of its catalytic properties. Monoliths with varying Fe2O3 amounts (5–30 wt%) are synthesized by a modified sol-gel approach and characterized by powder XRD, Mössbauer spectroscopy, SAXS, SEM-EDS and XPS. The Fe2O3(15 wt%)/SiO2 monolith exhibited a SO2 yield of ∼62% at 800 °C. The spent catalyst investigation established the dynamic nature of catalyst surface to accomplish the reaction mechanistic demands. |
| first_indexed | 2024-03-13T08:32:07Z |
| format | Article |
| id | doaj.art-923d13f3295d4cb2b6730ecf3b653826 |
| institution | Directory Open Access Journal |
| issn | 1873-3905 |
| language | English |
| last_indexed | 2024-03-13T08:32:07Z |
| publishDate | 2023-06-01 |
| publisher | Elsevier |
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| series | Catalysis Communications |
| spelling | doaj.art-923d13f3295d4cb2b6730ecf3b6538262023-05-31T04:43:50ZengElsevierCatalysis Communications1873-39052023-06-01179106686Sol-gel mediated synthesis and characterization of hierarchically porous Fe2O3/SiO2 monolithic catalyst for high temperature sulfuric acid decompositionNeelesh Kumar0Atindra Mohan Banerjee1M.R. Pai2Sher Singh Meena3A.K. Patra4P.U. Sastry5 Jagannath6A.K. Tripathi7Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, IndiaChemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India; Corresponding author at: Hydrogen Energy and Catalysis Section, Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India.Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, IndiaSolid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, IndiaSolid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, IndiaSolid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, IndiaTechnical Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, IndiaChemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, IndiaTo address the issues faced by microparticulate catalysts in fixed bed reactors for high temperature sulfuric acid decomposition viz. channeling and mass transfer, we report the preparation, characterization of Fe2O3/SiO2 hierarchical porous monoliths and testing of its catalytic properties. Monoliths with varying Fe2O3 amounts (5–30 wt%) are synthesized by a modified sol-gel approach and characterized by powder XRD, Mössbauer spectroscopy, SAXS, SEM-EDS and XPS. The Fe2O3(15 wt%)/SiO2 monolith exhibited a SO2 yield of ∼62% at 800 °C. The spent catalyst investigation established the dynamic nature of catalyst surface to accomplish the reaction mechanistic demands.http://www.sciencedirect.com/science/article/pii/S1566736723000882Fe2O3/SiO2Hierarchically porousMonolithSulfuric acid decompositionHydrogen generation |
| spellingShingle | Neelesh Kumar Atindra Mohan Banerjee M.R. Pai Sher Singh Meena A.K. Patra P.U. Sastry Jagannath A.K. Tripathi Sol-gel mediated synthesis and characterization of hierarchically porous Fe2O3/SiO2 monolithic catalyst for high temperature sulfuric acid decomposition Catalysis Communications Fe2O3/SiO2 Hierarchically porous Monolith Sulfuric acid decomposition Hydrogen generation |
| title | Sol-gel mediated synthesis and characterization of hierarchically porous Fe2O3/SiO2 monolithic catalyst for high temperature sulfuric acid decomposition |
| title_full | Sol-gel mediated synthesis and characterization of hierarchically porous Fe2O3/SiO2 monolithic catalyst for high temperature sulfuric acid decomposition |
| title_fullStr | Sol-gel mediated synthesis and characterization of hierarchically porous Fe2O3/SiO2 monolithic catalyst for high temperature sulfuric acid decomposition |
| title_full_unstemmed | Sol-gel mediated synthesis and characterization of hierarchically porous Fe2O3/SiO2 monolithic catalyst for high temperature sulfuric acid decomposition |
| title_short | Sol-gel mediated synthesis and characterization of hierarchically porous Fe2O3/SiO2 monolithic catalyst for high temperature sulfuric acid decomposition |
| title_sort | sol gel mediated synthesis and characterization of hierarchically porous fe2o3 sio2 monolithic catalyst for high temperature sulfuric acid decomposition |
| topic | Fe2O3/SiO2 Hierarchically porous Monolith Sulfuric acid decomposition Hydrogen generation |
| url | http://www.sciencedirect.com/science/article/pii/S1566736723000882 |
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