博士研究生邱朋涛论文“Organics- and Surfactant-free, Molten Salt Medium Controlled Synthesis of Pt-M (M = Cu, Pd) Bi- and Tri-metallic Nanocubes and Nanosheets

”近日被可持续化学领域著名学术期刊 ACS Sustainable Chemistry & Engineering接受，该期刊2016年影响因子5.267.该研究工作首次在低温熔岩介质中通过氧化石墨烯为衬底，KI为 结构诱导剂，合成了单晶立方和片状结构的PtPd， PtCu以及PtPdCu二元和三元合金纳米粒子，为在非传统溶剂环境中贵金属纳米粒子的可控合成提供了思路。

Synthesizing Pt-based alloys with well-defined morphology could provide an effective method for optimizing the catalytic activities. But organic solvents and surfactants, which always strongly adsorbed on the surface and severely limited the improvement in catalytic performance, are essentially required to control the morphology of Pt-based alloys. Therefore, the design of surfactant-free or even organics-free synthetic methods for an effective catalyst has become strategically imperative. However, most efforts in the design of surfactant-free synthetic methods have lost the control of morphology. In this study, we present a novel synthetic strategy for the shape-controlled synthesis of Pt-based alloys in inorganic molten salt without using any organics. With the assistance of GO, PtPd with sheet-like or core-shell cubic shape, PtCu with special hemicubic shape and trimetallic PtPdCu with cubic shape have prepared successfully in inorganic molten salt. The application of GO has been proved very important to control the morphology of Pt-based alloys. Because the strong absorption capacity of GO toward the metal ions or NPs, which due to the existence of various oxygen-containing functional groups on the surface, has endowed itself with the stabilizer capability in inorganic molten salt.