A review on recent progress and selection of cobalt-based cathode materials for low temperature-solid oxide fuel cells

Kumar, R.V.; Khandale, A.P.

doi:10.1016/j.rser.2021.111985

Cited by 60 publications

(22 citation statements)

References 180 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although this work overviews the last trends in LODPs, a number of recent publications fell within the reviewing procedure. In our opinion, these works [ 205 , 206 , 207 , 208 , 209 , 210 , 211 ] should be mentioned with no detailed analysis.…”

Section: Discussionmentioning

confidence: 99%

Layered Oxygen-Deficient Double Perovskites as Promising Cathode Materials for Solid Oxide Fuel Cells

et al. 2021

View full text Add to dashboard Cite

Development of new functional materials with improved characteristics for solid oxide fuel cells (SOFCs) and solid oxide electrolysis cells (SOECs) is one of the most important tasks of modern materials science. High electrocatalytic activity in oxygen reduction reactions (ORR), chemical and thermomechanical compatibility with solid electrolytes, as well as stability at elevated temperatures are the most important requirements for cathode materials utilized in SOFCs. Layered oxygen-deficient double perovskites possess the complex of the above-mentioned properties, being one of the most promising cathode materials operating at intermediate temperatures. The present review summarizes the data available in the literature concerning crystal structure, thermal, electrotransport-related, and other functional properties (including electrochemical performance in ORR) of these materials. The main emphasis is placed on the state-of-art approaches toimproving the functional characteristics of these complex oxides.

show abstract

Section: Discussionmentioning

confidence: 99%

Layered Oxygen-Deficient Double Perovskites as Promising Cathode Materials for Solid Oxide Fuel Cells

et al. 2021

View full text Add to dashboard Cite

show abstract

“…The ORR process on the cathode consists of several essential steps, as shown in Figure : (1) O 2 adsorbed and dissociated to O atoms on the surface of the cathode; (2) O atoms gained electrons and became O 2– ; (3) O 2– diffused across the cathode/electrolyte interface and entered into the electrolyte . Cathode materials include perovskite-type La 1– x Sr x MnO 3−δ (LSM), , La 1– x Sr x Co 1– y Fe y O 3−δ (LSCF), , Ba 0.5 Sr 0.5 Co 0.8 Fe 0.2 O 3−δ (BSCF), , SrTiO 3 , Sm 0.5 Sr 0.5 CoO 3−δ (SSC), , and layered double perovskites PrBaCo 2 O 5+δ (PBC), NdBaCo 2 O 5+δ (NBC), GdBaCo 2 O 5+δ (GBC), − LaBa 0.5 Sr 0.25 Ca 0.25 Co 2 O 5+δ (LBSCC), NdBa 0.5 Sr 0.25 Ca 0.25 Co 2 O 5+δ (NBSCC), PrBa 0.5– x Sr 0.5 Co 2 O 5+δ (PBSC), Sr 2 Fe 1.5– x Ni x Mo 0.5 O 6‑δ (SFNM), , Sr 2 Fe 1.3 Ga 0.2 Mo 0.5 O 6−δ (SFGM), and PrBaFe 1.9 Zn 0.1 O 5+δ (PBFZ), and Ruddlesden–Popper oxides La 2– x Sr x NiO 4+δ (LSN), La 2 NiO 4+δ (LNO), , and La 2– x Bi x NiO 4+δ (LBN) …”

Section: Overview Of Sofc Cathodementioning

confidence: 99%

Review of SOFC Cathode Performance Enhancement by Surface Modifications: Recent Advances and Future Directions

et al. 2023

View full text Add to dashboard Cite

Cathode materials with high electrochemical catalytic activity, stability, and durability at medium/low temperatures are still critical challenges for the commercialization of solid oxide fuel cells (SOFCs). Therefore, various surface modification techniques have been employed to improve the performance of SOFC cathodes. Significant achievements have been made in enhancing the cathode catalytic activity and durability by surface modification, including solution infiltration, the atomic layer deposition technique (ALD), and the one-pot method. Surface modification is considered to be one of the most effective approaches to enhance the catalytic activity and durability of the cathodes with the advantages of low cost and time savings. This review illustrates the fundamental principles, recent progress, advantages, disadvantages, challenges, and prospects of these advanced surface modification technologies. Furthermore, this article provides valuable guidance and potential directions for these surface modification methods toward the commercialization of SOFC technology.

show abstract

“…[ 19 ] Furthermore, cobalt‐rich compounds usually have high thermal expansion coefficient, resulting in the delamination between electrode and electrolyte at elevated temperatures. [ 20 ] Notwithstanding these concerns, cobalt still plays a crucial role in perovskite cathodes since it makes a great contribution to electrochemical performance, e.g., electrical conductivity and ORR activity. [ 21,22 ] Considering the cost‐effectiveness associated with high price of cobalt, highly active cathodes with low‐content cobalt hold a greater promise for large‐scale applications in O‐SOFCs and H‐SOFCs.…”

Section: Introductionmentioning

confidence: 99%

A Highly Efficient and Robust Bifunctional Perovskite‐Type Air Electrode with Triple‐Conducting Behavior for Low‐Temperature Solid Oxide Fuel Cells

Zhang

et al. 2022

Adv Funct Materials

View full text Add to dashboard Cite

Cobalt-rich materials have generally been recognized as the prevailing candidates of cathodes for low-temperature solid oxide fuel cells (LT-SOFCs, 400-600 °C). Regrettably, their instability and high cost are the major concerns for future commercialization. In response to these drawbacks, here, an A-sitedeficient low-cobalt-containing perovskite-type oxide, Ba 0.95 Fe 0.7 Co 0.2 Sc 0.1 O 3-δ (BFCS0.95), as an efficient bifunctional electrode with triple-conducting (H + |O 2− |e − ) nature for oxygen-ion conducting SOFCs (O-SOFCs) and proton conducting SOFCs (H-SOFCs) is proposed. BFCS0.95 electrode exhibits impressive versatility in catalyzing oxygen reduction reaction, i.e., ultralow area-specific resistances (0.072 Ω cm 2 for O-SOFCs and 0.4 Ω cm 2 for H-SOFCs at 550 °C, respectively), extraordinarily high power outputs (1092 mW cm −2 for O-SOFCs and 419 mW cm −2 for H-SOFCs at 550 °C, respectively), excellent long-term durability (>100 h for O-SOFCs and H-SOFCs at 600 °C), remarkable reversibility between pure air and CO 2 -containing air, and superior resistance against temperature fluctuations. The combined experimental and computational studies elucidate the roles of A-site deficient state and triple-conducting behavior, both of which are essential to overall electrochemical performance. Low-cobalt-containing feature also makes BFCS0.95 cathode economically competitive among all cobalt-containing analogues. Overall, the finding paves a highly efficient route to develop bifunctional electrodes for LT-SOFCs toward a sustainable energy future.

show abstract

A review on recent progress and selection of cobalt-based cathode materials for low temperature-solid oxide fuel cells

Cited by 60 publications

References 180 publications

Layered Oxygen-Deficient Double Perovskites as Promising Cathode Materials for Solid Oxide Fuel Cells

Layered Oxygen-Deficient Double Perovskites as Promising Cathode Materials for Solid Oxide Fuel Cells

Review of SOFC Cathode Performance Enhancement by Surface Modifications: Recent Advances and Future Directions

A Highly Efficient and Robust Bifunctional Perovskite‐Type Air Electrode with Triple‐Conducting Behavior for Low‐Temperature Solid Oxide Fuel Cells

Contact Info

Product

Resources

About