Nanostructured thin-film electrodes for high temperature fuel cells

Researchers at the Renewable Energy and Chemicals (REC) group of IIT Delhi are using quantum mechanical density functional theory (DFT) simulations and well-defined experiments to design and fabricate nanostructured thin-film electrodes for high performance fuel cells.

Solid Oxide Fuel Cells (SOFCs) are known to be the most efficient devices in converting chemical energy to electrical energy.

The research findings are recently published in ACS Applied Materials & Interfaces, an interdisciplinary journal of the American Chemical Society(ACS).“We probed the mechanism of oxygen reduction at the molecular level and identified issues related to poor electrode performance. More specifically, cation segregation to the surface of the layered perovskite electrode material was demonstrated for limiting the SOFC performance,” says Prof M Ali Haider, the PI of this study.

In order to operate the SOFC at an intermediate temperature and improve its electrochemical performance by controlling surface cation segregation, a molecular level engineering of the electrode material is attempted. The scientific results are expected to provide the technological breakthroughs required for the SOFCs development. The research team include Uzma Anjum, Tuhin S. Khan, Manish Agarwal and Prof. M. Ali Haider.

Link: https://doi.org/10.1021/acsami.9b06666