Preparation of PtNi/C Electrocatalysts for Direct Methanol Fuel Cell via Pulse Microwave Assisted Polyol Method

PtNi/C nanoparticles with different atomic ratios of Pt/Ni were produced in pulse microwave assisted polyol process. Transmission electron microscopy(TEM) images show uniform morphology. X-ray diffraction(XRD) pattern plus energy dispersive X-ray(EDX) spectroscopy suggests pure composition. Cyclic voltammogram study reveals that PtNi/C nanoparticles synthesized in pulse microwave assisted polyol process have better catalytic activity for the oxidation of methanol to carbon dioxide than those synthesized in continuous process.

隔板式反应精馏技术的研究进展

隔板式反应精馏技术是一种将隔板式精馏塔和传统反应精馏工艺相结合,反应和分离过程高度强化的复杂技术。简要介绍了隔板式反应精馏技术的特点,并重点论述了该技术在国外的应用以及控制和优化的方法,概述了隔板式反应精馏塔在国内的发展现状,最后指出该技术在节能减排的大环境下将有非常大的发展前景和应用价值。