Academic Journal
Synergetic Effect of Ligand Modification of a Ru(II) Complex Catalyst and Ag Loading for Constructing a Highly Active Hybrid Photocatalyst Using C 3 N 4 for CO 2 Reduction
| العنوان: | Synergetic Effect of Ligand Modification of a Ru(II) Complex Catalyst and Ag Loading for Constructing a Highly Active Hybrid Photocatalyst Using C 3 N 4 for CO 2 Reduction |
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| المؤلفون: | Noritaka Sakakibara, Kei Kamogawa, Akinobu Miyoshi, Kazuhiko Maeda, Osamu Ishitani |
| سنة النشر: | 2024 |
| مصطلحات موضوعية: | Biochemistry, Molecular Biology, Pharmacology, Biotechnology, Developmental Biology, Environmental Sciences not elsewhere classified, yielded formic acid, improved electron supply, fold turnover frequency, driven chemical conversion, accumulated photoexcited electrons, loaded carbon nitride, finding sheds light, 4 ′-( po, 3 , rup , rucp , superior photocatalytic activity, metal complex catalyst, 4 , negative reduction potential, visible light irradiation, 2 , trans <, complex catalyst, reduction potential, reduction activity, photocatalytic co, useful fuels, typical example |
| الوصف: | Hybrid photocatalysts comprising a semiconductor and a metal complex catalyst are promising for the efficient, visible-light-driven chemical conversion of CO 2 to useful fuels. As a typical example, a hybrid photocatalyst comprising Ag-loaded carbon nitride (C 3 N 4 ) and trans -(Cl)-[Ru{4,4′-(PO 3 H 2 ) 2 -2,2′-bipyridine}(CO) 2 Cl 2 ] ( RuP ), RuP /Ag/C 3 N 4 , has been developed. However, the effects of the reduction potential of RuP on the photocatalytic CO 2 reduction activity of hybrid systems have not yet been investigated. This study utilized a ligand-modified Ru catalyst ( RuCP ) to construct a new hybrid photocatalyst ( RuCP /Ag/C 3 N 4 ) in which a methylene spacer was inserted into RuCP between the bipyridine ligand and the phosphonic acid anchor groups on RuP to obtain a more negative reduction potential for the Ru catalyst. RuCP /Ag/C 3 N 4 yielded formic acid with 2.5-fold turnover frequency and 6.5-fold turnover number (>12,000, used RuCP base) in comparison to RuP /Ag/C 3 N 4 under visible light irradiation. The superior photocatalytic activity of RuCP /Ag/C 3 N 4 was attributed to the faster CO 2 reduction reaction on RuCP owing to its more negative reduction potential. The faster CO 2 reduction on RuCP was facilitated by Ag loading on C 3 N 4 , which accumulated photoexcited electrons on Ag-loaded C 3 N 4 and improved electron supply to the RuCP . This finding sheds light on a new approach for the development of hybrid photocatalysts for CO 2 reduction. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | unknown |
| Relation: | https://figshare.com/articles/journal_contribution/Synergetic_Effect_of_Ligand_Modification_of_a_Ru_II_Complex_Catalyst_and_Ag_Loading_for_Constructing_a_Highly_Active_Hybrid_Photocatalyst_Using_C_sub_3_sub_N_sub_4_sub_for_CO_sub_2_sub_Reduction/25034546 |
| DOI: | 10.1021/acs.energyfuels.3c04126.s001 |
| الاتاحة: | https://doi.org/10.1021/acs.energyfuels.3c04126.s001 https://figshare.com/articles/journal_contribution/Synergetic_Effect_of_Ligand_Modification_of_a_Ru_II_Complex_Catalyst_and_Ag_Loading_for_Constructing_a_Highly_Active_Hybrid_Photocatalyst_Using_C_sub_3_sub_N_sub_4_sub_for_CO_sub_2_sub_Reduction/25034546 |
| Rights: | CC BY-NC 4.0 |
| رقم الانضمام: | edsbas.99FBC11D |
| قاعدة البيانات: | BASE |
| DOI: | 10.1021/acs.energyfuels.3c04126.s001 |
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