Xing Ruimin, Li Rui, Tong Liangyu, Li Bingyue, Kong Deling, Tian Shufang, Liu Shanhu
Henan Key Laboratory of Polyoxometalate Chemistry, Henan Joint International Research Laboratory of Environmental Pollution Control Materials, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P. R. China.
J Nanosci Nanotechnol. 2018 Dec 1;18(12):8296-8301. doi: 10.1166/jnn.2018.16389.
Special morphological noble metal-based bimetallic alloy nanostructures became popular for methanol oxidation reaction in order to reduce the high cost of the Pt catalyst and improve the catalyst activity. Herein, we developed a facile one pot hydrothermal method for the synthesis of platinum-copper bimetallic nanoflowers (Pt-Cu NFs) in the presence of hexadecyl trimethyl ammonium bromide (CTAB). The morphology, structure and composition of Pt-Cu NFs were carefully characterized and the synthesized parameters were optimized systematically by adjusting different experimental conditions. Results showed that the CTAB usage and the NaI amount were critical to the controlled synthesis of Pt-Cu NFs. The Pt-Cu NFs were high-performance electrocatalysts for the methanol oxidation reaction (MOR) with superior activity and superior stability in alkaline solution, which were far better than pure Pt nanoparticle electrocatalysts.
为了降低铂催化剂的高成本并提高催化剂活性，特殊形态的贵金属基双金属合金纳米结构在甲醇氧化反应中变得很受欢迎。在此，我们开发了一种简便的一锅水热法，用于在十六烷基三甲基溴化铵（CTAB）存在下合成铂 - 铜双金属纳米花（Pt - Cu NFs）。对Pt - Cu NFs的形态、结构和组成进行了仔细表征，并通过调整不同实验条件系统地优化了合成参数。结果表明，CTAB的用量和NaI的量对Pt - Cu NFs的可控合成至关重要。Pt - Cu NFs是甲醇氧化反应（MOR）的高性能电催化剂，在碱性溶液中具有优异的活性和稳定性，远优于纯铂纳米颗粒电催化剂。
