Influence of model organic air polutants on the PEM type fuel cell performance and development of suitable air treatment system

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F18%3A43916144" target="_blank" >RIV/60461373:22310/18:43916144 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22310/18:43916145

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Influence of model organic air polutants on the PEM type fuel cell performance and development of suitable air treatment system

Original language description

Fuel cell with polymer electrolyte (PEM FC) is a potential source of electrical energy. Fuel cells have a lot of advantages as high efficiency by direct conversion chemical to electrical energy, fast change of performance, no moving parts and other. Hydrogen economy is one possible way to store electric energy and stabilize electric grid. Overproduction of electric energy is used for hydrogen production by water electrolysis. Hydrogen can be used as chemical compounds or converted back to electric energy. Fuel cell is key part of hydrogen economy. PEM FC used platinum and platinum metals as catalyst. Platinum catalyst can be degraded by impurities in fuel or in oxidation agent. Using of ambient air as source of oxidation agent is advantageous due the reduction of weight. Unfortunately ambient air is polluted by many impurities. Mechanical impurities as dust of pollen can deposit on cathode surface and in combination with produced water form a sludge blocking the gas distribution channels and gas distribution layer. Most dangerous chemical compounds are hydrogen sulfide and other volatile sulfur compounds, because poisoning of catalyst by these compounds is nonreversible. Huge groups of dangerous compounds are organic pollutants like benzene, toluene and other. Problem with impurities in air is solved by filtration, adsorption a combined filtration and adsorption. The question is, what happens when a filter breaks. This work is focused on two goals. First is developing of suitable filter, which is able to remove from ambient air mechanical and chemical impurities. This filter was developed with respect to low pressure drop, high total capacity and ability to removing particles with diameter under 1 µm. Second goal is characterization of the impact of organic pollutants on the fuel cell and the possibility of regeneration by different procedures. Standard method for regeneration contaminated fuel cell is desorption, some work examining the possibility of desorption at elevated temperature. Used of oxidation and removing of impurities from the catalyst by applying external voltage pulse represent unconventional method.

Czech name

—

Czech description

—

Type

O - Miscellaneous

CEP classification

—

OECD FORD branch

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Project

<a href="/en/project/VI20152019018" target="_blank" >VI20152019018: Development and realization of autonomous DC power supply with hydrogen fuel cell</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů