Perovskite-structured cobalt-free cathode materials for solid oxide fuel cells

Kaur, Paramvir; Singh, Kalpana

doi:10.1016/b978-0-12-823532-4.00009-4

Cited by 3 publications

(2 citation statements)

References 68 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Charges over individual cations (+2 (A-site), +4 (B-site), and −2 for oxygen anion) establish compositional neutrality in their respective stoichiometry. Stoichiometric variations of the parent composition on the other hand builds up new oxides. − A simple illustration by A 2 B 1+ x B 1 ′ – x O 6‑δ perovskites demonstrate the adjustment of the normalB normalB ′ cationic radius ratio to alter requisite properties . Although on the other side, complex perovskites are characterized by disordered oxygen sublattices with partially occupied oxygen sites.…”

Section: Perovskite-based Fuel Cellmentioning

confidence: 99%

Technological Challenges and Advancement in Proton Conductors: A Review

Vignesh

Rout

2023

Energy Fuels

View full text Add to dashboard Cite

Proton conductors (PCs) are multifunctional perovskite materials with structural, electrical, and chemical compatibilities that serve as principal components in proton conducting solid oxide fuel cells (PC-SOFC). The synergetic advantages of PC-SOFC dominate lucrative applications of conventional SOFC. However, adequate advantages accompany certain key limitations in PCs. The inverse interplay between proton conductivity and chemical stability are two broader challenges which demonstrate a clear trade-off. As a consequence, different reactive constituents within the host BaCeO 3 and BaZrO 3 PCs enforce the gradient in chemical stability under diverse atmospheres, while altered charge chemistry and structural perturbations escalate the activation barrier and impose reduced proton conductivity. Such occurrences are more pronounced in acceptor-doped PCs. Although material engineering via acceptor defect substitutions assists protonation and charge dynamics, on the other hand, it provokes novel challenges (proton trapping effect) at a higher dopant volume fraction beyond the threshold. The principal entropy among chemical and electrophysical parameters is proportionally associated with dopant-incorporated subcategorical material limitations. In this study, a compilation of factors responsible for structural and electrophysical diversities as a consequence of compositional-induced symmetry variations is highlighted with a plausible conclusion and future research perspectives for smart and advanced energy applications.

show abstract

Section: Perovskite-based Fuel Cellmentioning

confidence: 99%

Technological Challenges and Advancement in Proton Conductors: A Review

Vignesh

Rout

2023

Energy Fuels

View full text Add to dashboard Cite

show abstract

“…In the initial consideration of various materials for their application as electrode and electrolyte layers in middle- and high-temperature electrochemical cells, solid perovskite-like oxide compounds with the general formula ABO3 are well established. 9–12 Perovskites represent a unique class of materials with multifunctional properties that make them an attractive object of study for researchers worldwide. 13,14 The potential applications of perovskite are diverse and include use in sensors and catalyst electrodes, certain types of fuel cells, 15 solar cells, 16–18 lasers, 19,20 storage devices, 21 photocatalysis devices, 22 and other applications.…”

Section: Introductionmentioning

confidence: 99%