Reducing Critical Raw Material Use in Commercial Solid Oxide Fuel Cells Using Vertically Aligned Thin‐Film Cathodes with Enhanced Long‐Term Stability DOI Creative Commons
Matthew P. Wells, Kosova Kreka, Mohana V. Kante

et al.

Energy & environment materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 17, 2025

Solid oxide fuel cells (SOFCs) are widely presented as a sustainable solution to future energy challenges. Nevertheless, solid presently rely on significant use of several critical raw materials enable optimized electrode reaction kinetics. This challenge can be addressed by using thin‐film materials; however, this is typically accompanied complex device fabrication procedures well poor mechanical/chemical stability. In work, we conduct systematic study range promising based vertically aligned nanocomposite (VAN) thin films. We demonstrate low area specific resistance (ASR) values 0.44 cm 2 at 650 °C achieved (La 0.60 Sr 0.40 ) 0.95 Co 0.20 Fe 0.80 O 3 ‐(Sm (CeO (LSCF‐SDC) films, which also characterized degradation rate, approximately half that planar LSCF then integrate these films directly with commercial anode supported through single‐step deposition process. The resulting exhibit peak power density 0.47 W −2 750 °C, competitive 0.64 for the same operating bulk cathode, despite 99.5% reduction in cathode material use. By demonstrating such performance functional layers, work paves way further cost reductions cells, could likewise applying architectures layer and/or current collecting account greatest cell stacks. Therefore, present marks valuable step towards proliferation cells.

Language: Английский

Reducing Critical Raw Material Use in Commercial Solid Oxide Fuel Cells Using Vertically Aligned Thin‐Film Cathodes with Enhanced Long‐Term Stability DOI Creative Commons
Matthew P. Wells, Kosova Kreka, Mohana V. Kante

et al.

Energy & environment materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 17, 2025

Solid oxide fuel cells (SOFCs) are widely presented as a sustainable solution to future energy challenges. Nevertheless, solid presently rely on significant use of several critical raw materials enable optimized electrode reaction kinetics. This challenge can be addressed by using thin‐film materials; however, this is typically accompanied complex device fabrication procedures well poor mechanical/chemical stability. In work, we conduct systematic study range promising based vertically aligned nanocomposite (VAN) thin films. We demonstrate low area specific resistance (ASR) values 0.44 cm 2 at 650 °C achieved (La 0.60 Sr 0.40 ) 0.95 Co 0.20 Fe 0.80 O 3 ‐(Sm (CeO (LSCF‐SDC) films, which also characterized degradation rate, approximately half that planar LSCF then integrate these films directly with commercial anode supported through single‐step deposition process. The resulting exhibit peak power density 0.47 W −2 750 °C, competitive 0.64 for the same operating bulk cathode, despite 99.5% reduction in cathode material use. By demonstrating such performance functional layers, work paves way further cost reductions cells, could likewise applying architectures layer and/or current collecting account greatest cell stacks. Therefore, present marks valuable step towards proliferation cells.

Language: Английский

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