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Nitrogen and oxygen-doped metal-free carbon catalysts for chemoselective transfer hydrogenation of nitrobenzene, styrene, and 3-nitrostyrene with hydrazine
| Title: | Nitrogen and oxygen-doped metal-free carbon catalysts for chemoselective transfer hydrogenation of nitrobenzene, styrene, and 3-nitrostyrene with hydrazine |
| Authors: | Fujita, Shin-ichiro Browse this author | | Watanabe, Hiroyuki Browse this author | | Katagiri, Ayaka Browse this author | | Yoshida, Hiroshi Browse this author | | Arai, Masahiko Browse this author →KAKEN DB |
| Keywords: | Chemoselective hydrogenation | | Hydrazine | | Carbon catalyst | | Nitrogen doping | | Oxygen doping |
| Issue Date: | 1-Nov-2014 |
| Publisher: | Elsevier |
| Journal Title: | Journal of Molecular Catalysis A: Chemical |
| Volume: | 393 |
| Start Page: | 257 |
| End Page: | 262 |
| Publisher DOI: | 10.1016/j.molcata.2014.06.021 |
| Abstract: | An activatedcarbon(AC)wastreatedbyhydrogenperoxideandammoniatodopeoxygenandnitrogenon its surface.Thesurface-functionalizedACcatalystswereusedforthetransferreductionofnitrobenzene, styrene, and3-nitrostyrenebyhydrazinehydrate.Thereductionofnitrobenzeneand3-nitrostyrenewas promoted overtheoxygen-andnitrogen-dopedcatalystscomparedtotheparentACcatalyst.Thosewere less activeforthereductionofstyrenebutactiveforthereductionofvinylgroupof3-nitrostyrene.How- ever, thenitrogendopantsuppressedthereductionofvinylgroupof3-vinylaniline.Thefunctionalized AC catalystsarelikelytofacilitatetheadsorptionandactivationofnitrogroupofthenitrosubstrates through interactionswithpolarizedsurfaceinducedbytheoxygenandnitrogenheterodopants.This should makeitpossibletoreducethevinylgroupof3-nitrostyreneonthesurface.Thenitrogendopant hindered thereductionofthevinylgroupof3-vinylanilinebecausetheadsorptionthroughitsamino group shouldbecomedifficultonthesurfaceofbasicnatureinducedbythenitrogendoping.TheAC serves asanelectricalconductoranditsperformanceshouldbeenhancedbythesurfacefunctionaliza- tion andthiswouldcontributetotheformationofreducingspeciessuchasdiimideandprotonfrom hydrazine onthesurface.Thepresentresultsshowthatoxygen-and/ornitrogen-doped,functionalized carbon materialscouldbepromisingasmetal-freemulti-taskcatalysts. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/56892 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 荒井 正彦
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