An A-site-deficient perovskite offers high activity and stability for low-temperature solid-oxide fuel cells
MetadataShow full item record
Solid oxide fuel cells (SOFCs) directly convert fossil and/or renewable fuels into electricity and/or high-quality heat in an environmentally friendly way. However, high operating temperatures result in high cost and material issues, which have limited the commercialization of SOFCs. To lower their operating temperatures, highly active and stable cathodes are required to maintain a reasonable power output. Here, we report a layer-structured A-site deficient perovskite Sr0.95Nb0.1Co0.9O3−δ (SNC0.95) prepared by solid-state reactions that shows not only high activity towards the oxygen reduction reaction (ORR) at operating temperatures below 600 °C, but also offers excellent structural stability and compatibility, and improved CO2 resistivity. An anode-supported fuel cell with SNC0.95 cathode delivers a peak power density as high as 1016 mW cm−2 with an electrode-area-specific resistance of 0.052 Ω cm2 at 500 °C.
Showing items related by title, author, creator and subject.
Abdullah, Hanisom binti (2010)Mallee biomass is considered to be a second-generation renewable feedstock in Australia and will play an important role in bioenergy development in Australia. Its production is of large-scale, low cost, small carbon ...
The effects of different cutting heights, mulching and burning on the control of bellyache bush (jatropha gossypifolia L.) applicable in East TimorGuterres, Acacio da Costa (2008)Since bellyache bush invaded to East Timor it has significantly reduced crop and animal production and consequential loss of income from farm enterprises. Methods of control of bellyache bush chosen should be appropriate ...
Jiang, San Ping; Yan, Y. (2013)© 2013 Wiley-VCH Verlag GmbH & Co. KGaA. All rights reserved. The world's ever-growing demand for power has created an urgent need for new efficient and sustainable sources of energy and electricity. Today's consumers ...