Noble-Metal-Promoted Three-Dimensional Macroassembly of Single-Layered Graphene Oxide


  • This work was supported by the NSFC (20725102, 20971078, 20921001), the Fok Ying Tung Education Foundation (111012), and the State Key Project of Fundamental Research for Nanoscience and Nanotechnology (2006CB932301).


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Barreling along: 3D macrostructures (cylinder; see picture) have been assembled from single-layered graphene oxide and noble-metal nanocrystals (Au, Ag, Pd, Ir, Rh, Pt, etc.). Although the density of the cylinders is very low (ca. 0.03 g cm−3), they show excellent mechanical properties and have been utilized as a fixed-bed catalyst for the Heck reaction, which proceeded with nearly 100 % selectivity and conversion.