Development of Advanced Electrode Materials on Porous Silicon for Micropower Formic Acid-Oxygen Fuel Cells
Nicolay A. Yashtulov*, Alexander V. Ragutkin, Marina V. Lebedeva
MIREA – Russian Technological University,78 Vernadsky Avenue, Moscow, 119454, Russian Federation
Publication Date (Web): Feb 28, 2019
Copyright © 2019 VBRI Press
In this work, in order to create electrode materials for electrochemical energy converters, composites on porous silicon modified by palladium have been obtained. The functional characteristics of the electrodes have been studied by scanning electron microscopy, X-ray phase analysis, ex-situ and in-situ cyclic voltammetry. The electrode materials based on porous silicon had demonstrated high catalytic activity and specific characteristics in fuel cells with direct oxidation of formic acid. The fuel cell prototype with low palladium content showed the maximum specific power of about 30 mW/cm2 at a current density of 95-100 mA/cm2.
Porous silicon, palladium electrocatalysts, watt-ampere characteristics, formic acid, current density, specific power.