Journal
NANO LETTERS
Volume 20, Issue 5, Pages 2943-2949Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.9b02344
Keywords
Solid oxide fuel cell; SOFC; Thin film; Sputtering; Nanofiber
Categories
Funding
- U.S. Department of Energy/National Energy Technology Laboratory (DOE/NETL) [DE-FE0026211]
- National Science Foundation [ECCS-1542148]
- National Science Foundation Major Research Instrumentation Program [CHE1338173]
Ask authors/readers for more resources
Thin film solid oxide fuel cells (TF-SOFCs) are attracting attention due to their ability to operate at comparatively lower temperatures (400-650 degrees C) that are unattainable for conventional anode-supported SOFCs (650-800 degrees C). However, limited cathode performance and cell scalability remain persistent issues. Here, we report a new approach of fabricating yttria-stabilized zirconia (YSZ)-based TF-SOFCs via a scalable magnetron sputtering process. Notable is the development and deposition of a porous La0.6Sr0.4Co0.2Fe0.8O2.95,(LSCF)-based cathode with a unique fibrous nanostructure. This all-sputtered cell shows an open-circuit voltage of similar to 1.0 V and peak power densities of similar to 1.7 and similar to 2.5 W/cm(2) at 600 and 650 degrees C, respectively, under hydrogen fuel and air along with showing stable performance in short-term testing. The power densities obtained in this work are the highest among YSZ-based SOFCs at these low temperatures, which demonstrate the feasibility of fabricating exceptionally high-performance TF-SOFC cells with distinctive dense or porous nanostructures for each layer, as desired, by a sputtering process. This work illustrates a new, potentially low-cost, and scalable platform for the fabrication of next-generation TF-SOFCs with excellent power output and stability.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available