Jaiswal, K and Girish, YR and De, M (2022) Group-VI-Chalcogenide-Based Nanomaterials in Photo/Thermal Organic Transformations. In: Accounts of Materials Research, 3 (10). pp. 1033-1048.
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Abstract
ConspectusWith the growing awareness of the need to have greener, economical, and sustainable alternatives in synthetic chemistry, the scientific community has come up with strategies that are based on materials in general and nanomaterials in particular. Nanomaterials can be tuned to obtain the desired properties. These methods include modification of the surface by functionalization, controlling the defects at the edge and the basal plane, and doping with metals, other nanomaterials, or heteroatoms. At the lower dimensions, they bear an enhanced surface-to-volume ratio. These act as potential sites for catalysis, and hence, nanomaterials have an immense ability to mediate organic transformations. Although these have not yet taken over the reported metal/ligand-based catalysts completely, one can agree to the fact that nanoscience and nanotechnology have a charisma of their own. Over the years, they have acquired importance in industries as well, chiefly because of their heterogeneous nature that allows one to reuse them in subsequent runs. In this Account, we have made an effort to introduce the readers to the various forms of transition metal chalcogenides (TMCs) that have been used in photo or thermal catalysis as well as our contributions in this regard. To date, various accounts or reviews centered around these materials have focused chiefly on energy related applications or electrocatalytic transformations like the water-splitting process, the hydrogen evolution reaction (HER), and the oxygen evolution/reduction reaction (OER/ORR) and electronics such as transistors, solar cells, photodetectors, etc. Also, these materials have gained popularity in drug delivery systems and sensing applications. Very few reports have brought about the role of TMCs in catalysis. Herein, we have laid emphasis on the use of these materials in organic transformations, chiefly categorized as oxidation-reduction reactions and C-C or C-heteroatom bond forming reactions, mediated thermally or photochemically. It is also possible to merge the multifaceted applications of TMCs, as demonstrated in our recent report on the cross dehydrogenative coupling (CDC) reaction synchronized with HER. Apart from this, we have discussed some of the other reactions such as hydrodesulfurization (HDS) and hydrodeoxygenation (HDO) as well. Some of the key challenges persisting in this field include the design of chiral materials for various enantioselective or diastereoselective reactions, correlation of the experimental output with theoretical studies, controlling the extent of doping, and detailed analysis of TMCs mediated organic transformations. In a nutshell, TMC mediated catalysis is a relatively unexplored, yet a highly promising field, and overcoming these challenges would enhance the potential of this field manifold in various sectors. © 2022 Accounts of Materials Research. Co-published by ShanghaiTech University and American Chemical Society. All rights reserved.
| Item Type: | Journal Article |
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| Publication: | Accounts of Materials Research |
| Publisher: | American Chemical Society |
| Additional Information: | The copyright for this article belongs to the Author(S). |
| Department/Centre: | Division of Chemical Sciences > Organic Chemistry |
| Date Deposited: | 09 Jan 2023 06:52 |
| Last Modified: | 09 Jan 2023 06:52 |
| URI: | https://eprints.iisc.ac.in/id/eprint/78902 |
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