A traditional composite cathode for proton-conducting solid oxide fuel cells (H-SOFCs) is typically obtained by mixing materials and proton conducting electrolyte of BaCe0.7Y0.2Zr0.1O3–? (BZCY), providing chemical thermal compatibility with the electrolyte. Here, a series triple-conducing cobalt-free iron-based perovskites as cathodes H-SOFCs reported. Specifically, BaCexFe1–xO3–? (x = 0.36, 0....

The changes in the surface phase and the morphology of nickel–yttria stabilized zirconia (YSZ) cermet anodes for solid oxide fuel cells (SOFCs) upon exposure to a fuel containing 100 parts per million (ppm)-level hydrogen sulfide (H2S) at elevated temperatures were investigated using in situ Raman microspectroscopy as well as ex situ techniques such as X-ray diffraction (XRD), scanning electron...

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...

The existing Ni-yttria-stabilized zirconia anodes in solid oxide fuel cells (SOFCs) perform poorly in carbon-containing fuels because of coking and deactivation at desired operating temperatures. Here we report a new anode with nanostructured barium oxide/nickel (BaO/Ni) interfaces for low-cost SOFCs, demonstrating high power density and stability in C(3)H(8), CO and gasified carbon fuels at 75...

The effect of varying the CO-CO2 and CO2-N2 ratios was investigated in the presence of coal in a specially designed 3-electrode setup, used to simulate the anode compartment in a hybrid direct carbon fuel cell (HDCFC). The HDCFC consists of a hybrid between a molten carbonate and a solid oxide fuel cell (SOFC). It was shown that the cell performance improved with increased CO2 content in the CO...

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...

Solid oxide fuel cells (SOFCs) are a rapidly emerging energy technology for a low carbon world, providing high efficiency, potential to use carbonaceous fuels, and compatibility with carbon capture and storage. However, current state-of-the-art materials have low tolerance to sulfur, a common contaminant of many fuels, and are vulnerable to deactivation due to carbon deposition when using carbo...

Solid oxide fuel cells (SOFCs) have the potential to revolutionise the present fuel economy due to their higher fuel conversion efficiency compared with standard heat engines and the possibility of utilizing the heat produced in a combined heat and power system. One of the reasons they have yet to fulfil this potential is that the conventional anode material of choice, a nickel/yttria-stabilise...

In order to enhance the performance of interconnects which are used in solid oxide fuel cells (SOFCs), a protective/conductive coating can be applied. In this research AISI 430 ferritic stainless steel was coated in a Mn-base pack mixture by pack cementation method. In order to evaluate the oxidation behavior, isothermal oxidation was accomplished for 200 h at 800 ºC. Electrical behavior was al...