Nafion functionalized carbon nanohorns as catalyst support for proton exchange membrane fuel cells
作者： D. Ebenezer , M. Jagannatham , M. Sai Lahari , P. Bhuwaneshswar , H. Prathap
DOI: 10.1016/J.DIAMOND.2016.09.017
关键词: Platinum 、 Thermogravimetric analysis 、 Analytical chemistry 、 Nafion 、 Fourier transform infrared spectroscopy 、 Materials science 、 Scanning electron microscope 、 Proton exchange membrane fuel cell 、 Chemical engineering 、 Catalyst support 、 Catalysis
摘要: Abstract Carbon nanohorns (CNHs) are synthesized by DC arc-discharge method in helium atmosphere. The CNHs heat treated and then functionalized with Nafion. Platinum is reduced onto Nafion through ethylene glycol reduction method. Pt/Nafion-CNHs catalysts prepared varying deposition times from 1 to 7 h. Detailed characterization of the catalyst performed using scanning electron microscopy (SEM), transmission (TEM), Fourier transform infrared spectroscopy, X-ray diffraction (XRD) thermo gravimetric analysis (TGA). Membrane electrode assemblies decal performance analyzed hydrogen pumping technique. SEM TGA soot indicates relatively high level purity CNHs. TEM XRD 6 h time reveals that Pt nanoparticles uniformly deposited on multiwall surface particle size 3–4 nm. Hydrogen studies act as good support without hindering transfer at electrodes. Hence, these graphitic carbon supports have potential application for power density applications.
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