New durable PEM fuel cell with platinum-free anode and carbon-free cathode
30 December 2013
Researchers at the Shanghai Institute of Ceramics, Chinese Academy of Sciences, have developed a prototype for single proton exchange membrane fuel cells (PEMFCs) with a mesostructured platinum-free WO3/C anode and a carbon-free Pt/WC cathode. This new PEMFC has a comparable power output to that of standard PEMFCs with commercial E-TEK Pt/C electrode catalysts at 70 °C, CO-poisoning-free features, and enhanced durability.
As one of the most important clean energy sources, proton exchange membrane fuel cells (PEMFCs) have been a topic of extensive research focus for decades. Unfortunately, several critical technique obstacles, such as the high cost of platinum electrode catalysts, performance degradation due to the CO poisoning of the platinum anode, and carbon corrosion by oxygen in the cathode, have greatly impeded its commercial development.
…The prototype cell exhibited 93% power output of a standard PEMFC using commercial Pt/C catalysts at 50 and 70 °C, and more importantly, CO poisoning-free and carbon corrosion-resistant characters of the anode and cathode, respectively. Consequently, the prototype cell demonstrated considerably enhanced cell operation durability. The mesostructured electrode catalysts are therefore highly promising in the future development and application of PEMFCs.
Cui, X., Shi, J., Wang, Y., Chen, Y., Zhang, L. and Hua, Z. (2013), “Mesostructured Platinum-Free Anode and Carbon-Free Cathode Catalysts for Durable Proton Exchange Membrane Fuel Cells.” ChemSusChem. doi: 10.1002/cssc.201301079
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