Polymer Composites Lab, Division of Chemistry, Department of Sciences and Humanities, Vignan's Foundation for Science, Technology and Research (VFSTR), Vadlamudi, Guntur 522 213, India.
Department of Basic Science and Humanities, Division of Chemistry, Vignan's Nirula Institute of Technology and Science for Women, Guntur, Andhra Pradesh, India.
J Colloid Interface Sci. 2022 Feb;607(Pt 2):1776-1785. doi: 10.1016/j.jcis.2021.09.107. Epub 2021 Sep 22.
The electrocatalytic performance of platinum-gold(Pt-Au) nanoparticles decorated non-covalent functionalization of triazine framework derived from poly(cyanuric chloride-co-biphenyl) over reduced graphene oxide (Poly(CC-co-BP)-RGO) was carried out for glycerol in basic medium and their oxidized products were analysed to support the enhanced activity. The surface morphology and the composition of the catalyst were obtained using X-ray diffraction, transmission electron microscopy and energy-dispersive X-ray spectroscopy. The electrooxidation results illustrate that the Pt-Au/Poly(CC-co-BP)-RGO catalyst exhibits improved catalytic activity and stability when compared to that of Pt/Poly(CC-co-BP)-RGO, Pt/Poly(CC-co-BP) and Pt/RGO catalysts. The better performed Pt-Au/Poly(CC-co-BP)-RGO catalyst was used as electrode material for the fabrication of single test direct alkaline glycerol fuel cell. The fuel cell performance was tested by varying the concentration of glycerol and the temperature of the cell. The maximum power density of 122.96 mWcm was obtained for Pt-Au/Poly(CC-co-BP)-RGO catalyst in single direct alkaline glycerol fuel cell under the optimum concentration of 2.0 M glycerol at 70 °C.
负载在还原氧化石墨烯上的聚(三聚氰胺-co-联苯)非共价功能化衍生的三嗪框架修饰的铂金(Pt-Au)纳米粒子的电催化性能在碱性介质中对甘油进行了研究,并分析了其氧化产物以支持增强的活性。使用 X 射线衍射、透射电子显微镜和能量色散 X 射线光谱获得催化剂的表面形态和组成。电氧化结果表明,与 Pt/Poly(CC-co-BP)-RGO、Pt/Poly(CC-co-BP)和 Pt/RGO 催化剂相比,Pt-Au/Poly(CC-co-BP)-RGO 催化剂表现出改善的催化活性和稳定性。表现更好的 Pt-Au/Poly(CC-co-BP)-RGO 催化剂被用作电极材料,用于制造单测试直接碱性甘油燃料电池。通过改变甘油的浓度和电池的温度来测试燃料电池的性能。在 70°C 下,最佳浓度为 2.0 M 甘油时,Pt-Au/Poly(CC-co-BP)-RGO 催化剂在单直接碱性甘油燃料电池中的最大功率密度为 122.96 mWcm。