What is it about?
We report here a novel fuel-to-electricity conversion technology resembling a fuel cell based on the perovskite solar cell principle
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Why is it important?
A novel fuel-to-electricity conversion technology resembling a fuel cell has been developed based on the perovskite solar cell principle using a perovskite, e.g. La0.6Sr0.4Co0.2Fe0.8O3−δ and an ionic nanocomposite material as a core functional layer, sandwiched between n- and p-conducting layers. The conversion process makes use of semiconductor energy bands and junctions properties. The physical properties of the junction and alignment of the semiconductor energy band allow for direct ion transport and prevent internal electronic short-circuiting, while at the same time avoiding losses at distinct electrolyte/electrode interfaces typical to conventional fuel cells. The new device achieved a stable power output of 1080 mWcm−2 at 550 °C in converting hydrogen fuel into electricity.
Perspectives
Oxides are high relevant for energy devices. Here we demonstrate a fuel-cell type of conversion device using perovskites.
Professor Peter D. Lund
Aalto University
Read the Original
This page is a summary of: Novel fuel cell with nanocomposite functional layer designed by perovskite solar cell principle, Nano Energy, January 2016, Elsevier,
DOI: 10.1016/j.nanoen.2015.11.015.
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