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https://hdl.handle.net/2440/112352
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dc.contributor.author | Thanh, T. | - |
dc.contributor.author | Ba, H. | - |
dc.contributor.author | Truong-Phuoc, L. | - |
dc.contributor.author | Nhut, J.-M. | - |
dc.contributor.author | Ersen, O. | - |
dc.contributor.author | Begin, D. | - |
dc.contributor.author | Janowska, I. | - |
dc.contributor.author | Nguyen, D. | - |
dc.contributor.author | Granger, P. | - |
dc.contributor.author | Pham-Huu, C. | - |
dc.date.issued | 2014 | - |
dc.identifier.citation | Journal of Materials Chemistry A, 2014; 2(29):11349-11357 | - |
dc.identifier.issn | 2050-7488 | - |
dc.identifier.issn | 2050-7496 | - |
dc.identifier.uri | http://hdl.handle.net/2440/112352 | - |
dc.description.abstract | We report a high yield exfoliation of few-layer-graphene (FLG) with up to 17% yield from expanded graphite, under 5 h sonication time in water, using graphene oxide (GO) as a surfactant. The aqueous dispersion of GO attached FLG (FLG–GO), with less than 5 layers, is used as a template for further decoration of nanodiamonds (NDs). The hybrid materials were self-organized into 3D-laminated nanostructures, where spherical NDs with a diameter of 4–8 nm are homogeneously distributed on the surface of the FLG–GO complex (referred to as FLG–GO@NDs). It was found that GO plays a dual role, it (1) mediated exfoliation of expanded graphite in aqueous solution resulting in a FLG–GO colloid system, and (2) incorporated ND particles for the formation of composites. A high catalytic performance in the dehydrogenation of ethyl-benzene on FLG–GO@ND metal-free catalyst is achieved; 35.1% of ethylbenzene conversion and 98.6% styrene selectivity after a 50 h reaction test are observed which correspond to an activity of 896 mmolST gcatalyst−1 h−1, which is 1.7 and 5 times higher than those of the unsupported NDs and traditional catalysts, respectively. The results demonstrate the potential of the FLG–GO@ND composite as a promising catalyst for steam-free industrial dehydrogenation applications. | - |
dc.description.statementofresponsibility | Tung Tran Thanh, Housseinou Ba, Lai Truong-Phuoc, Jean-Mario Nhut, Ovidiu Ersen, Dominique Begin, Izabela Janowska, Dinh Lam Nguyen, Pascal Grangerd and Cuong Pham-Huu | - |
dc.language.iso | en | - |
dc.publisher | Royal Society of Chemistry | - |
dc.rights | This journal is © The Royal Society of Chemistry 2014 | - |
dc.source.uri | http://dx.doi.org/10.1039/c4ta01307g | - |
dc.title | A few-layer graphene-graphene oxide composite containing nanodiamonds as metal-free catalysts | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1039/C4TA01307G | - |
pubs.publication-status | Published | - |
Appears in Collections: | Aurora harvest 8 Chemistry publications |
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