IBF-CNR, Via alla Cascata 56/C, 38123 Trento, Italy.
Dalton Trans. 2018 Oct 23;47(41):14573-14579. doi: 10.1039/c8dt02839g.
We report a method to synthesize a palladium-functionalized porous graphene xerogel structure. A graphene xerogel nanocomposite with a three-dimensional microstructure was obtained by chemical reduction of an aqueous dispersion of graphene oxide at mild temperature. After the graphene hydrogel has been placed in a K2PdCl4 solution, the spontaneous redox reaction between the reduced graphene and Pd2+ takes place, leading to the formation of nanohybrid materials consisting of a graphene porous matrix decorated with Pd nanoparticles. The final porosity of the material was tuned through drying the graphene hydrogel by solvent evaporation. The palladium functionalized porous graphene xerogels were successfully used for the catalytic reduction of Rhodamine 6G.
我们报告了一种合成钯功能化多孔石墨烯气凝胶结构的方法。通过在温和温度下还原氧化石墨烯的水悬浮液，得到具有三维微结构的石墨烯气凝胶纳米复合材料。在石墨烯水凝胶置于 K2PdCl4 溶液之后，还原的石墨烯与 Pd2+之间发生自发的氧化还原反应，导致形成由多孔石墨烯基质装饰的 Pd 纳米粒子的纳米杂化材料。通过溶剂蒸发干燥石墨烯水凝胶来调节材料的最终孔隙率。成功地将钯功能化多孔石墨烯气凝胶用于催化还原罗丹明 6G。
