Wednesday 26th of July 2017
Iranian researchers produced a polymer nanocomposite which increases the efficiency and reduces the final price of fuel cells
TEHRAN (INIC)- Iranian researchers produced a polymer nanocomposite
through a simple and economic method which increases the efficiency and reduces
the final price of fuel cells.
Alcohol fuel cells are highly interesting as the source of energy in transportation industry due to their high efficiency in energy conversion, low temperature reaction and ability to produce a large volume of energy. Ethanol and methanol fuel cells are very attractive among various types of alcohol fuel cells due to their ease of availability, simplicity of reaction and transportation and storage. In addition, the expensive platinum metal is used in fuel cells as electrode, which results in an increase in the final price of the devices.
Taking into consideration the limited amount of expensive platinum metal and the increase in its consumption in various industries, the development and commercialization of fuel cells have faced a challenge. Therefore, numerous studies have been carried out on the modification of catalysts that facilitate the oxidation of alcohols to improve performance of fuel cells. This research presents a simple and economic method to increase efficiency of platinum/carbon catalyst.
This study deals with the synthesis and evaluation of a catalyst nanocomposite containing poly para phenylenediamine as the matrix and titanium dioxide nanoparticles as the filler. When the nanocomposite is added to the platinum/carbon catalyst, it increases the ion exchange, catalytic activity and mechanical properties of the catalyst.
The results showed that the use of nanocomposite inside the carbon/platinum catalyst increases the catalytic activity of the electrode in methanol and ethanol oxidation.
Reduction in the production cost of fuel cell, facilitating their commercialization, and increasing the stability and activity of carbon/platinum catalyst are among the advantages of the product.
Results of the research have been published in Electrochimica Acta, vol. 191, 2016, pp. 536-547.