Palladium/graphitic carbon nitride catalyst for selective oxygen transfer in Wacker oxidation
Nanoscaled palladium particles supported on graphitic carbon nitride (Pd0/g-C3N4) is prepared to improve the oxygen transfer in Wacker oxidation via chemical reduction method. From the analysis of FT-IR, XRD, SEM, TEM, XPS and ICP, Pd0 particles are firmly combined with g-C3N4 layers, and sub-surfac...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2020-09-01
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| Series: | Journal of Saudi Chemical Society |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1319610320300843 |
| _version_ | 1818007722098950144 |
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| author | Xi Gao Zhangshuai Li Weiting Yan Xinhua Peng |
| author_facet | Xi Gao Zhangshuai Li Weiting Yan Xinhua Peng |
| author_sort | Xi Gao |
| collection | DOAJ |
| description | Nanoscaled palladium particles supported on graphitic carbon nitride (Pd0/g-C3N4) is prepared to improve the oxygen transfer in Wacker oxidation via chemical reduction method. From the analysis of FT-IR, XRD, SEM, TEM, XPS and ICP, Pd0 particles are firmly combined with g-C3N4 layers, and sub-surface ones occupy most of the components. It is worth mentioning that graphene oxide (GO), which is completely recyclable without further pollution, can be used as a ‘solid weak acid’ taking the place of H2SO4 and CF3COOH. Under the optimization conditions, as many as 46 kinds of olefins are transferred into corresponding products with satisfactory yields, and o-methyl styrene gets the highest yield of 94%. After five times of recycling experiment, the yield of acetophenone only decreases by about 7.0% in the uniform reaction process. In virtue of former research results and molecular electrostatic potential, a possible mechanism is put forward to explain the catalytic process. |
| first_indexed | 2024-04-14T05:20:19Z |
| format | Article |
| id | doaj.art-5e235ebd2e0c4263b3e7b658bb4a829e |
| institution | Directory Open Access Journal |
| issn | 1319-6103 |
| language | English |
| last_indexed | 2024-04-14T05:20:19Z |
| publishDate | 2020-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Saudi Chemical Society |
| spelling | doaj.art-5e235ebd2e0c4263b3e7b658bb4a829e2022-12-22T02:10:13ZengElsevierJournal of Saudi Chemical Society1319-61032020-09-01249663672Palladium/graphitic carbon nitride catalyst for selective oxygen transfer in Wacker oxidationXi Gao0Zhangshuai Li1Weiting Yan2Xinhua Peng3School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaSchool of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaSchool of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaCorresponding author.; School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaNanoscaled palladium particles supported on graphitic carbon nitride (Pd0/g-C3N4) is prepared to improve the oxygen transfer in Wacker oxidation via chemical reduction method. From the analysis of FT-IR, XRD, SEM, TEM, XPS and ICP, Pd0 particles are firmly combined with g-C3N4 layers, and sub-surface ones occupy most of the components. It is worth mentioning that graphene oxide (GO), which is completely recyclable without further pollution, can be used as a ‘solid weak acid’ taking the place of H2SO4 and CF3COOH. Under the optimization conditions, as many as 46 kinds of olefins are transferred into corresponding products with satisfactory yields, and o-methyl styrene gets the highest yield of 94%. After five times of recycling experiment, the yield of acetophenone only decreases by about 7.0% in the uniform reaction process. In virtue of former research results and molecular electrostatic potential, a possible mechanism is put forward to explain the catalytic process.http://www.sciencedirect.com/science/article/pii/S1319610320300843Graphitic carbon nitrideGraphene oxidePalladium catalystSolid weak acidWacker oxidation |
| spellingShingle | Xi Gao Zhangshuai Li Weiting Yan Xinhua Peng Palladium/graphitic carbon nitride catalyst for selective oxygen transfer in Wacker oxidation Journal of Saudi Chemical Society Graphitic carbon nitride Graphene oxide Palladium catalyst Solid weak acid Wacker oxidation |
| title | Palladium/graphitic carbon nitride catalyst for selective oxygen transfer in Wacker oxidation |
| title_full | Palladium/graphitic carbon nitride catalyst for selective oxygen transfer in Wacker oxidation |
| title_fullStr | Palladium/graphitic carbon nitride catalyst for selective oxygen transfer in Wacker oxidation |
| title_full_unstemmed | Palladium/graphitic carbon nitride catalyst for selective oxygen transfer in Wacker oxidation |
| title_short | Palladium/graphitic carbon nitride catalyst for selective oxygen transfer in Wacker oxidation |
| title_sort | palladium graphitic carbon nitride catalyst for selective oxygen transfer in wacker oxidation |
| topic | Graphitic carbon nitride Graphene oxide Palladium catalyst Solid weak acid Wacker oxidation |
| url | http://www.sciencedirect.com/science/article/pii/S1319610320300843 |
| work_keys_str_mv | AT xigao palladiumgraphiticcarbonnitridecatalystforselectiveoxygentransferinwackeroxidation AT zhangshuaili palladiumgraphiticcarbonnitridecatalystforselectiveoxygentransferinwackeroxidation AT weitingyan palladiumgraphiticcarbonnitridecatalystforselectiveoxygentransferinwackeroxidation AT xinhuapeng palladiumgraphiticcarbonnitridecatalystforselectiveoxygentransferinwackeroxidation |