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Direct borohydride fuel cells (DBFC) are considered as attractive energy suppliers because of their high electrochemical activity, open circuit potential, energy storage capacity, and power performance at ambient temperature. For the successful commercialization of the DBFCs, cost effective and high performance cells should be produced. In this study, the analysis and optimization of the DBFC operation...
Borohydride has been considered as a potential fuel for the fuel cell application due to its high energy density. A DBFC (direct borohydride fuel cell) is an electrochemical device that converts chemical energy stored in borohydride and oxidant directly to electrical energy as long as the fuel and oxidant is supplied. One of the main problems encountered in a DBFC is the simultaneous hydrolysis of...
The aim of this work is to determine the optimum operating conditions for the process of preparing anode electrocatalysts for direct sodium borohydride fuel cell (DSBHFC). Pt–Au/C electrocatalysts were studied as the anode catalysts while Pt/C were chosen as a cathode catalyst. Anode electrocatalysts were produced by the precipitation method. In this work, pH, temperature, drying time and Pt/Au ratio...
In this study, optimization of the hot-pressing parameters in manufacturing of the MEA (membrane electrode assembly) is carried out using RSM (response surface method). The important parameters to be optimized in the MEA production are temperature, pressure and the processing (pressing) time. Therefore, the studied temperature, pressure and pressing time intervals are 80–130 °C, 10–100 kg cm −2...
The water management is critical to achieve the full potential of PEMFC (polymer electrolyte membrane fuel cells). The surface contact angle and roughness properties of bipolar plate are the main factors affecting water management in a fuel cell and PEMFC performance. The effects of the contact angle and roughness of polymer composite bipolar plate and hydrogen flow rate on power density of PEMFC...
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