Cu2O nanocrystals: Unveiling facet-dependent catalysis in phenylacetylene homocoupling
We report a one-pot synthesis method to synthesize Cu2O nanocubes (NCs) and octahedra (Oh) using mild reducing agents such as ascorbic acid (L-AA), and D-glucose, respectively. The shape-dependent nanostructures of Cu2O have been characterized using various spectroscopic and microscopic techniques e...
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Elsevier
2025-03-01
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| Series: | Sustainable Chemistry for the Environment |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2949839224001433 |
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| author | Satyaranjan Jena Arnab Ghosh Novuhulu Rhakho Ramesh B. Dateer Akshaya K. Samal |
| author_facet | Satyaranjan Jena Arnab Ghosh Novuhulu Rhakho Ramesh B. Dateer Akshaya K. Samal |
| author_sort | Satyaranjan Jena |
| collection | DOAJ |
| description | We report a one-pot synthesis method to synthesize Cu2O nanocubes (NCs) and octahedra (Oh) using mild reducing agents such as ascorbic acid (L-AA), and D-glucose, respectively. The shape-dependent nanostructures of Cu2O have been characterized using various spectroscopic and microscopic techniques exhibiting an average size of 450 and 650 nm for Cu2O NCs and Oh, respectively which is influenced by their size and presence of various facets. X-ray diffraction (XRD) patterns reveal the crystalline nature of Cu2O nanostructures. The synthesized Cu2O NCs and Oh were investigated for their catalytic potential in phenylacetylene homocoupling organic reaction. The aryl alkyne homocoupling reaction demonstrates excellent efficacy under optimized reaction conditions. This work highlights the potential of (111)-bound Cu2O Oh in achieving high organocatalytic activity for aryl alkyne homocoupling transformations. Furthermore, Cu2O Oh demonstrated efficacy in catalyzing a wide range of substituted aryl alkynes under optimized reaction conditions, underscoring the importance of facet engineering in nanocatalysts for organic coupling reactions. The study found that Cu2O Oh exhibited enhanced catalytic efficiency, achieving a yield of 95.6 %, which is significantly higher than the 54.3 % yield obtained with Cu2O NCs. This superior performance of Cu2O Oh is attributed to the high catalytic activity of the (111) facets. |
| format | Article |
| id | doaj-art-bb5c71414b504e28a5004b3bcbc13a69 |
| institution | DOAJ |
| issn | 2949-8392 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Sustainable Chemistry for the Environment |
| spelling | doaj-art-bb5c71414b504e28a5004b3bcbc13a692025-08-20T02:56:56ZengElsevierSustainable Chemistry for the Environment2949-83922025-03-01910020010.1016/j.scenv.2024.100200Cu2O nanocrystals: Unveiling facet-dependent catalysis in phenylacetylene homocouplingSatyaranjan Jena0Arnab Ghosh1Novuhulu Rhakho2Ramesh B. Dateer3Akshaya K. Samal4Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Ramanagara, Bangalore, Karnataka 562112, India; Department of Chemistry, National Tsing Hua University, Hsinchu 300044, TaiwanCentre for Nano and Material Sciences, Jain University, Jain Global Campus, Ramanagara, Bangalore, Karnataka 562112, IndiaCentre for Nano and Material Sciences, Jain University, Jain Global Campus, Ramanagara, Bangalore, Karnataka 562112, India; Corresponding authors.Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Ramanagara, Bangalore, Karnataka 562112, India; Corresponding authors.Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Ramanagara, Bangalore, Karnataka 562112, India; Corresponding authors.We report a one-pot synthesis method to synthesize Cu2O nanocubes (NCs) and octahedra (Oh) using mild reducing agents such as ascorbic acid (L-AA), and D-glucose, respectively. The shape-dependent nanostructures of Cu2O have been characterized using various spectroscopic and microscopic techniques exhibiting an average size of 450 and 650 nm for Cu2O NCs and Oh, respectively which is influenced by their size and presence of various facets. X-ray diffraction (XRD) patterns reveal the crystalline nature of Cu2O nanostructures. The synthesized Cu2O NCs and Oh were investigated for their catalytic potential in phenylacetylene homocoupling organic reaction. The aryl alkyne homocoupling reaction demonstrates excellent efficacy under optimized reaction conditions. This work highlights the potential of (111)-bound Cu2O Oh in achieving high organocatalytic activity for aryl alkyne homocoupling transformations. Furthermore, Cu2O Oh demonstrated efficacy in catalyzing a wide range of substituted aryl alkynes under optimized reaction conditions, underscoring the importance of facet engineering in nanocatalysts for organic coupling reactions. The study found that Cu2O Oh exhibited enhanced catalytic efficiency, achieving a yield of 95.6 %, which is significantly higher than the 54.3 % yield obtained with Cu2O NCs. This superior performance of Cu2O Oh is attributed to the high catalytic activity of the (111) facets.http://www.sciencedirect.com/science/article/pii/S2949839224001433Cu2O NanocubesCu2O OctahedraHomocouplingPhenylacetylene and aryl-alkyne homocoupling reaction |
| spellingShingle | Satyaranjan Jena Arnab Ghosh Novuhulu Rhakho Ramesh B. Dateer Akshaya K. Samal Cu2O nanocrystals: Unveiling facet-dependent catalysis in phenylacetylene homocoupling Sustainable Chemistry for the Environment Cu2O Nanocubes Cu2O Octahedra Homocoupling Phenylacetylene and aryl-alkyne homocoupling reaction |
| title | Cu2O nanocrystals: Unveiling facet-dependent catalysis in phenylacetylene homocoupling |
| title_full | Cu2O nanocrystals: Unveiling facet-dependent catalysis in phenylacetylene homocoupling |
| title_fullStr | Cu2O nanocrystals: Unveiling facet-dependent catalysis in phenylacetylene homocoupling |
| title_full_unstemmed | Cu2O nanocrystals: Unveiling facet-dependent catalysis in phenylacetylene homocoupling |
| title_short | Cu2O nanocrystals: Unveiling facet-dependent catalysis in phenylacetylene homocoupling |
| title_sort | cu2o nanocrystals unveiling facet dependent catalysis in phenylacetylene homocoupling |
| topic | Cu2O Nanocubes Cu2O Octahedra Homocoupling Phenylacetylene and aryl-alkyne homocoupling reaction |
| url | http://www.sciencedirect.com/science/article/pii/S2949839224001433 |
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