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

Adv. Mater. Lett., 2019, 10 (10), pp 705-710

DOI: 10.5185/amlett.2019.9912

Publication Date (Web): Feb 28, 2019

E-mail: yashtulovna@mail.ru

Abstract


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.  © VBRI Press.

Keywords

Porous silicon, palladium electrocatalysts, watt-ampere characteristics, formic acid, current density, specific power.

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