Enhancing photocatalytic hydrogen peroxide generation by tuning hydrazone linkage density in covalent organic frameworks
Abstract The conversion of solar energy into chemical energy or high-value chemicals has attracted considerable research interest in the context of the global energy crisis. Hydrogen peroxide (H2O2) is a versatile and powerful oxidizing agent widely used in chemical synthesis and medical disinfectio...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-55894-y |
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| author | Avanti Chakraborty Akhtar Alam Uttam Pal Archisman Sinha Subhadip Das Tanusri Saha-Dasgupta Pradip Pachfule |
| author_facet | Avanti Chakraborty Akhtar Alam Uttam Pal Archisman Sinha Subhadip Das Tanusri Saha-Dasgupta Pradip Pachfule |
| author_sort | Avanti Chakraborty |
| collection | DOAJ |
| description | Abstract The conversion of solar energy into chemical energy or high-value chemicals has attracted considerable research interest in the context of the global energy crisis. Hydrogen peroxide (H2O2) is a versatile and powerful oxidizing agent widely used in chemical synthesis and medical disinfection. H2O2 also serves as a clean energy source in fuel cells, generating electricity with zero-carbon emissions. Recently, the sustainable production of H2O2 from water and oxygen using covalent organic frameworks (COFs) as photocatalysts has attracted considerable attention; however, systematic studies highlighting the role of linkages in determining photocatalytic performance are scarce. Under these circumstances, herein, we demonstrate that varying the imine and hydrazone linkages within the framework significantly influences photocatalytic H2O2 production. COFs with high-density hydrazone linkages, providing optimal docking sites for water and oxygen, enhance H2O2 generation activity (1588 μmol g−1 h−1 from pure water in the air), leading to highly efficient solar-to-chemical energy conversion. |
| format | Article |
| id | doaj-art-2229fac744e948b18538e28db2bcd836 |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-2229fac744e948b18538e28db2bcd8362025-01-12T12:31:29ZengNature PortfolioNature Communications2041-17232025-01-0116111210.1038/s41467-025-55894-yEnhancing photocatalytic hydrogen peroxide generation by tuning hydrazone linkage density in covalent organic frameworksAvanti Chakraborty0Akhtar Alam1Uttam Pal2Archisman Sinha3Subhadip Das4Tanusri Saha-Dasgupta5Pradip Pachfule6Department of Chemical and Biological Sciences, S. N. Bose National Centre for Basic SciencesDepartment of Chemical and Biological Sciences, S. N. Bose National Centre for Basic SciencesDepartment of Condensed Matter and Materials Physics, S. N. Bose National Centre for Basic SciencesDepartment of Chemical and Biological Sciences, S. N. Bose National Centre for Basic SciencesDepartment of Chemistry, Chaudhary Ranbir Singh UniversityDepartment of Condensed Matter and Materials Physics, S. N. Bose National Centre for Basic SciencesDepartment of Chemical and Biological Sciences, S. N. Bose National Centre for Basic SciencesAbstract The conversion of solar energy into chemical energy or high-value chemicals has attracted considerable research interest in the context of the global energy crisis. Hydrogen peroxide (H2O2) is a versatile and powerful oxidizing agent widely used in chemical synthesis and medical disinfection. H2O2 also serves as a clean energy source in fuel cells, generating electricity with zero-carbon emissions. Recently, the sustainable production of H2O2 from water and oxygen using covalent organic frameworks (COFs) as photocatalysts has attracted considerable attention; however, systematic studies highlighting the role of linkages in determining photocatalytic performance are scarce. Under these circumstances, herein, we demonstrate that varying the imine and hydrazone linkages within the framework significantly influences photocatalytic H2O2 production. COFs with high-density hydrazone linkages, providing optimal docking sites for water and oxygen, enhance H2O2 generation activity (1588 μmol g−1 h−1 from pure water in the air), leading to highly efficient solar-to-chemical energy conversion.https://doi.org/10.1038/s41467-025-55894-y |
| spellingShingle | Avanti Chakraborty Akhtar Alam Uttam Pal Archisman Sinha Subhadip Das Tanusri Saha-Dasgupta Pradip Pachfule Enhancing photocatalytic hydrogen peroxide generation by tuning hydrazone linkage density in covalent organic frameworks Nature Communications |
| title | Enhancing photocatalytic hydrogen peroxide generation by tuning hydrazone linkage density in covalent organic frameworks |
| title_full | Enhancing photocatalytic hydrogen peroxide generation by tuning hydrazone linkage density in covalent organic frameworks |
| title_fullStr | Enhancing photocatalytic hydrogen peroxide generation by tuning hydrazone linkage density in covalent organic frameworks |
| title_full_unstemmed | Enhancing photocatalytic hydrogen peroxide generation by tuning hydrazone linkage density in covalent organic frameworks |
| title_short | Enhancing photocatalytic hydrogen peroxide generation by tuning hydrazone linkage density in covalent organic frameworks |
| title_sort | enhancing photocatalytic hydrogen peroxide generation by tuning hydrazone linkage density in covalent organic frameworks |
| url | https://doi.org/10.1038/s41467-025-55894-y |
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