Yang Sudong, Dong Jing, Yao Zhaohui, Shen Chengmin, Shi Xuezhao, Tian Yuan, Lin Shaoxiong, Zhang Xiaogang
1] Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, P. R. China [2] College of Material Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China [3] Laboratory of Eco-Materials and Sustainable Technology (LEMST), Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences, Urumqi, 830011, P. R. China [4].
1] School of Aerospace, Tsinghua University, Beijing 100084, P. R. China [2].
Sci Rep. 2014 Mar 28;4:4501. doi: 10.1038/srep04501.
To synthesize monodisperse palladium nanoparticles dispersed on reduced graphene oxide (RGO) sheets, we have developed an easy and scalable solvothermal reduction method from an organic solution system. The RGO-supported palladium nanoparticles with a diameter of 3.8 nm are synthesized in N-methyl-2-pyrrolidone (NMP) and in the presence of oleylamine and trioctylphosphine, which facilitates simultaneous reduction of graphene oxide and formation of Pd nanocrystals. So-produced Pd/RGO was tested for potential use as electrocatalyst for the electro-oxidation of formic acid. Pd/RGO catalyzes formic acid oxidation very well compared to Pd/Vulcan XC-72 catalyst. This synthesis method is a new way to prepare excellent electrocatalysts, which is of great significance in energy-related catalysis.
为了合成分散在还原氧化石墨烯（RGO）片上的单分散钯纳米颗粒，我们开发了一种从有机溶液体系出发的简便且可扩展的溶剂热还原方法。直径为3.8 nm的RGO负载钯纳米颗粒在N-甲基-2-吡咯烷酮（NMP）中、在油胺和三辛基膦存在的情况下合成，这有助于同时还原氧化石墨烯并形成钯纳米晶体。如此制备的Pd/RGO被测试用作甲酸电氧化的潜在电催化剂。与Pd/Vulcan XC-72催化剂相比，Pd/RGO对甲酸氧化的催化效果非常好。这种合成方法是制备优异电催化剂的一种新途径，在与能源相关的催化领域具有重要意义。
