Electrochemical impedance spectroscopy (EIS) is commonly used for the characterization of electrochemical systems, such as solid oxide fuel cells (SOFCs). In recent years, distribution relaxation times (DRT) analysis has attracted increasing interest a tool investigating loss mechanisms in due to its ability resolve features that overlap complex planes. Among methods deconvolution function time...

Perovskite cathodes have emerged as a promising alternative to traditional cathode materials in low-temperature solid oxide fuel cells (LT-SOFCs) due their exceptional catalytic properties and high oxygen reduction reaction (ORR) activity. Their fast activity chemical stability drawn significant attention lowering the operating temperature of SOFCs. In this study, Ba2+ Bi3+ are doped into LaFeO...

Abstract Solid-state electrochemistry (SSE) is an interdisciplinary field bridging and solid-state ionics deals primarily with the properties of solids that conduct ions in case ionic conducting solid electrolytes electrons and/or electron holes mixed electronic materials. However, devices such as oxide fuel cells (SOFCs), there are unique electrochemical features due to high operating temperat...

As a highly efficient energy conversion device, proton-conducting solid oxide fuel cells (SOFCs) have attracted intensive attention due to its high performance at intermediate temperature.1 Ba0.5Sr0.5Co0.8Fe0.2O3-d (BSCF), as an excellent air electrode material for oxygen-ion conducting SOFCs,2 nevertheless, is not effective when employed in SOFCs. There are several factors limiting the of BSCF...

CeO 2 is a promising candidate for materials utilized in solid oxide fuel cells (SOFCs) due to its high ionic conductivity. The operating temperature of SOFCs results residual thermal stress the composing materials. In this work, we studied simultaneously mechanical and electronic behavior under different uniaxial tensile loading directions using density functional theory. shows strong anisotro...

A solid oxide fuel cell is a high-efficiency power device in hydrogen energy utilization. The durability and dynamic performance of metal-supported cells (MS-SOFCs) are superior to those electrolyte- or electrode-supported cells, with many potential applications. Gadolinium-doped cerium (GDC) has high oxygen ionic conductivity, making it suitable act as the electrolyte MS-SOFCs operating at 500...

Lattice defects significantly affect the mechanical properties of crystalline metal oxides. The materials for components solid oxide fuel cells (SOFCs) are no exception, and hence understanding interplay between lattice is important to ensure stability SOFCs. Herein, we performed an in situ evaluation temperature P(O2) dependence elastic moduli La2NiO4 (LN214), a candidate cathode material SOFC...

This review is devoted to the application of Sr2FeMoO6−δ (SFM) and Sr2F1.5Mo0.5O6−δ (SF1.5M) in La1−xSrxGa1−yMgyO3−δ (LSGM)-based SOFCs. We consider most relevant physical properties (crystal structure, thermodynamic stability, iron molybdenum valence states, oxygen vacancy formation non-stoichiometry, electrical conductivity), A- B-site ion substitution, performance SF1+xM SOFCs (polarization ...

Due to the high energy density, mature production technology, ease of storage and transportation, no carbon/sulfur nature ammonia fuel, direct-ammonia solid oxide fuel cells (DA-SOFCs) have received rapidly increasing attention, showing distinct advantages over H2-fueled SOFCs low-temperature cells. However, DA-SOFCs with conventional Ni-based cermet anodes still suffer from several drawbacks, ...