Nb-doped PrBa 0.8Ca 0.2Co 2O 6-based perovskite cathode with improved oxygen reduction reaction activity and stability for solid oxide fuel cells
Source abstract
Abstract
The performance of a solid oxide fuel cell (SOFC) is strongly associated with the activity and durability of the cathode, where the oxygen reduction reaction occurs. In this study, we report our findings in the development of an Nb-doped PrBa0.8Ca0.2Co2O6−δ (PrBa0.8Ca0.2Co2−xNbxO6−δ, x = 0, 0.025, 0.05, and 0.1, denoted as PBCCNx) perovskite composite as the SOFC cathode. Analyses of X-ray diffraction (XRD) patterns and energy-dispersive transmission electron microscopy (TEM-EDS) images suggest that after being treated at 950 °C in air, PBCCN0.05 mainly contains phases of Ca- and Nb-doped PrBaCo2O6−δ double perovskite, PrCoO3 perovskite with Ca and Nb doping, and Ba3Ca1.18Nb1.82O9−δ. When evaluated as an SOFC cathode, the PBCCN0.05 mixture has shown a low polarization resistance of 0.0074 Ω∙cm2 at 800 °C in La0.8Sr0.2Ga0.8Mg0.2O3 electrolyte symmetrical cells. Accordingly, anode-supported single cells with a configuration of Ni–Zr0.84Y0.16O2−δ (YSZ)/YSZ/Gd0.1Ce0.9O2−δ/PBCCN0.05 display high electrochemical performance, with a peak power density of 1.81 W∙cm−2 and a reasonable durability of 100 h at 800 °C. PBCCN0.05 possesses a higher concentration of oxygen vacancies, a faster oxygen surface adsorption‒dissociation rate, and an increased mass ratio of PrCoO3 perovskite with Ca and Nb doping compared to PrBa0.8Ca0.2Co2O6−δ without Nb doping.
Source: openalex_inverted_index · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advancements in Solid Oxide Fuel Cells · Magnetic and transport properties of perovskites and related materials · Electronic and Structural Properties of Oxides
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (50)
Show source-provided references
1. null10.1038/s41586-022-04457-y ↗
2. YF Yu. Compound climate extremes in China: Trends, causes, and projections. 2023, 286: 106675.10.1016/j.atmosres.2023.106675 ↗
3. S Bolan. Impacts of climate change on the fate of contaminants through extreme weather events. 2024, 909: 168388.10.1016/j.scitotenv.2023.168388 ↗
4. S Aguir Bargaoui. History of the human and nature relationship, discovery of greenhouse effect and awareness of the environmental problem. 2021, 4: 23-34.10.30564/jesr.v4i3.3120 ↗
6. RB Jackson. Global fossil carbon emissions rebound near pre-COVID-19 levels. 2022, 17: 031001.10.1088/1748-9326/ac55b6 ↗
7. K Vohra. Global mortality from outdoor fine particle pollution generated by fossil fuel combustion: Results from GEOS-Chem. 2021, 195: 110754.10.1016/j.envres.2021.110754 ↗
8. V Sharma. Journey of lignin from a roadblock to bridge for lignocellulose biorefineries: A comprehensive review. 2023, 861: 160560.10.1016/j.scitotenv.2022.160560 ↗
9. R Sirohi. Emerging trends in role and significance of biochar in gaseous biofuels production. 2023, 30: 103100.10.1016/j.eti.2023.103100 ↗
10. VK Sharma. Imperative role of photovoltaic and concentrating solar power technologies towards renewable energy generation. 2022, 2022: 3852484.10.1155/2022/3852484 ↗
11. S Roga. Recent technology and challenges of wind energy generation: A review. 2022, 52: 102239.10.1016/j.seta.2022.102239 ↗
12. G Li. Tidal current energy harvesting technologies: A review of current status and life cycle assessment. 2023, 179: 113269.10.1016/j.rser.2023.113269 ↗
13. A Hauch. Test and characterization of reversible solid oxide cells and stacks for innovative renewable energy storage. 2021, 21: 467-476.10.1002/fuce.202100046 ↗
14. MA Agbaje. Electrochemical-energy- exergy analysis of reversible solid oxide cell-based small-scale stand-alone energy storage system. 2023, 52: 103732.10.1016/j.csite.2023.103732 ↗
15. J Aicart. Transition cycles during operation of a reversible solid oxide electrolyzer/fuel cell (rSOC) system. 2019, 19: 381-388.10.1002/fuce.201800183 ↗
16. A Choudhury. Application of solid oxide fuel cell technology for power generation—A review. 2013, 20: 430-442.10.1016/j.rser.2012.11.031 ↗
17. RK Akikur. Performance analysis of a co-generation system using solar energy and SOFC technology. 2014, 79: 415-430.10.1016/j.enconman.2013.12.036 ↗
18. A Ndubuisi. Recent advances, practical challenges, and perspectives of intermediate temperature solid oxide fuel cell cathodes. 2022, 10: 2196-2227.10.1039/D1TA08475E ↗
19. A Jun. Perovskite as a cathode material: A review of its role in solid-oxide fuel cell technology. 2016, 3: 511-530.10.1002/celc.201500382 ↗
20. ZH Li. Perovskite cathode materials for low-temperature solid oxide fuel cells: Fundamentals to optimization. 2022, 5: 263-311.10.1007/s41918-021-00098-3 ↗
21. J Sunarso. Perovskite oxides applications in high temperature oxygen separation, solid oxide fuel cell and membrane reactor: A review. 2017, 61: 57-77.10.1016/j.pecs.2017.03.003 ↗
22. AP Tarutin. Chemical design of oxygen electrodes for solid oxide electrochemical cells: A guide. 2023, 57: 103185.10.1016/j.seta.2023.103185 ↗
23. SP Jiang. Development of lanthanum strontium cobalt ferrite perovskite electrodes of solid oxide fuel cells−A review. 2019, 44: 7448-7493.10.1016/j.ijhydene.2019.01.212 ↗
24. H Yu. Uniform and scalable Sm 3+ and Nd 3+ doped ceria nanocatalysts decorating bifunctional oxygen electrodes for high performing reversible solid oxide electrochemical cells. 2023, 475: 146002.10.1016/j.cej.2023.146002 ↗
25. null10.1016/j.apenergy.2023.122096 ↗
26. W Zhou. Progress in understanding and development of Ba 0.5Sr 0.5Co 0.8Fe 0.2O 3− δ -based cathodes for intermediate-temperature solid-oxide fuel cells: A review. 2009, 192: 231-246.10.1016/j.jpowsour.2009.02.069 ↗
27. MG Sahini. Ba x Sr 1- x Co y Fe 1- y O 3- δ (BSCF) mixed ionic-electronic conducting (MIEC) materials for oxygen separation membrane and SOFC applications: Insights into processing, stability, and functional properties. 2022, 48: 2948-2964.10.1016/j.ceramint.2021.10.189 ↗
28. SC Sun. Effects of H 2O and CO 2 on electrochemical behaviors of BSCF cathode for proton conducting IT-SOFC. 2016, 164: F81-F88.10.1149/2.0611702jes ↗
29. L Zhu. Performance degradation of double-perovskite PrBaCo 2O 5+ δ oxygen electrode in CO 2 containing atmospheres. 2017, 416: 649-655.10.1016/j.apsusc.2017.03.298 ↗
30. G Kim. Rapid oxygen ion diffusion and surface exchange kinetics in PrBaCo 2O 5+ x with a perovskite related structure and ordered A cations. 2007, 17: 2500-2505.10.1039/b618345j ↗
31. T Hu. Visiting the roles of Sr- or Ca- doping on the oxygen reduction reaction activity and stability of a perovskite cathode for proton conducting solid oxide fuel cells. 2023, 3: 91-101.10.1002/sus2.101 ↗
32. F Zhu. Enhancing the oxygen reduction reaction activity and durability of a double-perovskite via an A-site tuning. 2022, 65: 3043-3052.10.1007/s40843-022-2094-2 ↗
33. K Xu. An efficient steam-induced heterostructured air electrode for protonic ceramic electrochemical cells. 2022, 32: 2110998.10.1002/adfm.202110998 ↗
34. K Xu. Phase engineering of a donor-doped air electrode for reversible protonic ceramic electrochemical cells. 2024, 3: 100187.10.1016/j.apmate.2024.100187 ↗
35. FJ Jin. Enhancing oxygen reduction activity and CO 2 tolerance by a bismuth doping strategy for solid oxide fuel cell cathodes. 2024, 34: 2400519.10.1002/adfm.202400519 ↗
36. Y Chen. A highly active, CO 2-tolerant electrode for the oxygen reduction reaction. 2018, 11: 2458-2466.10.1039/C8EE01140K ↗
37. C Lim. Investigation of the Fe doping effect on the B-site of the layered perovskite PrBa 0.8Ca 0.2Co 2O 5+ δ for a promising cathode material of the intermediate-temperature solid oxide fuel cells. 2019, 44: 1088-1095.10.1016/j.ijhydene.2018.10.182 ↗
38. Y Zhang. Enhanced oxygen reduction kinetics of IT-SOFC cathode with PrBaCo 2O 5+ δ /Gd 0.1Ce 1.9O 2− δ coherent interface. 2022, 10: 3495-3505.10.1039/D1TA09615J ↗
39. null10.1021/acsenergylett.1c00432 ↗
40. HX Gu. Enhancing the oxygen reduction activity of PrBaCo 2O 5+ δ double perovskite cathode by tailoring the calcination temperatures. 2020, 45: 25996-26004.10.1016/j.ijhydene.2019.12.171 ↗
41. LL Zhang. Effects of Pr-deficiency on thermal expansion and electrochemical properties in Pr 1− x BaCo 2O 5+ δ cathodes for IT-SOFCs. 2016, 212: 522-534.10.1016/j.electacta.2016.07.014 ↗
42. M Li. Gd-induced electronic structure engineering of a NiFe-layered double hydroxide for efficient oxygen evolution. 2021, 9: 2999-3006.10.1039/D0TA10740A ↗
43. F He. Phase segregation of a composite air electrode unlocks the high performance of reversible protonic ceramic electrochemical cells. 2024, 17: 3898-3907.10.1039/D4EE01608D ↗
44. YR Yin. Successful preparation of BaCo 0.5Fe 0.5O 3– δ cathode oxide by rapidly cooling allowing for high-performance proton-conducting solid oxide fuel cells. 2023, 12: 587-597.10.26599/JAC.2023.9220707 ↗
45. J Li. Self-stabilized hybrid cathode for solid oxide fuel cell: A-site deficient perovskite coating as solid solution for strontium diffusion. 2022, 438: 135446.10.1016/j.cej.2022.135446 ↗
46. Y Chen. A highly efficient multi-phase catalyst dramatically enhances the rate of oxygen reduction. 2018, 2: 938-949.10.1016/j.joule.2018.02.008 ↗
47. SM Choi. Electrochemical analysis of high-performance protonic ceramic fuel cells based on a columnar-structured thin electrolyte. 2019, 233: 29-36.10.1016/j.apenergy.2018.10.043 ↗
48. LY Shen. Medium-Entropy perovskites Sr(Fe α Ti β Co γ Mn ζ )O 3− δ as promising cathodes for intermediate temperature solid oxide fuel cell. 2021, 295: 120264.10.1016/j.apcatb.2021.120264 ↗
49. F Zhu. An active and contaminants-tolerant high-entropy electrode for ceramic fuel cells. 2024, 9: 556-567.10.1021/acsenergylett.4c00037 ↗
50. YD Wang. Call attention to using DRT and EIS to quantify the contributions of solid oxide cell components to the total impedance. 2022, 47: 35437-35448.10.1016/j.ijhydene.2022.08.093 ↗