@article{35589, author = {Martha M Welander and Boxun Hu and Seraphim Belko and Kevin X Lee and Pawan K Dubey and Ian Robinson and Prabhakar Singh and Michael C Tucker}, title = {Direct utilization of gaseous fuels in metal supported solid oxide fuel cells}, abstract = {

Direct utilization and internal reforming of gaseous fuels is investigated on symmetric-architecture metal supported solid oxide fuel cells (MS-SOFCs) with thin ceramic electrolyte and scaffold backbone layers, and low cost ferritic stainless steel supports on both sides. Infiltrated Pr-oxide and Ni/samarium-doped ceria catalysts are added to the cathode and anode electrodes, respectively. Initial performance and durability is evaluated for MS-SOFCs operating with natural gas, propane, ammonia, and dimethyl ether at 700 °C. Cells for natural gas and propane utilize a novel high entropy alloy (HEA) catalyst for internal reforming with performance and degradation rates similar to H₂ (0.5 W cm⁻² and ∼12%/100 h). Initial testing with sulfur shows reversible degradation for levels found in natural gas and irreversible degradation for higher levels found in commercial propane. Overall, MS-SOFCs show successful fuel flexibility.

}, year = {2023}, journal = {International Journal of Hydrogen Energy}, volume = {48}, pages = {1533 - 1539}, month = {01/2023}, issn = {03603199}, url = {https://linkinghub.elsevier.com/retrieve/pii/S0360319922046316}, doi = {10.1016/j.ijhydene.2022.10.008}, language = {eng}, }