Synthesis of fuel cell grade Bi2Co0.1V0.9O5.35 solid electrolyte thin films

Studies on grain boundary effects in spray deposited BICOVOX 0.1 films on platinum-coated stainless steel substrate

“…The activation energy estimated from Fig. 5a is 0.31 eV at lower temperature, which is lesser than the earlier report [3]. The well-packed grains and grain boundaries improve the microstructural properties, by reducing the defect density which could be the reason for this change in activation energy.…”

“…The thickness was measured using surface profiler. The detailed procedure for the film formation and decomposition behavior of precursor is discussed elsewhere [3,8]. Structural studies were carried out using X-ray diffractometer (Philips PW3710) with Cu Kα radiation of wavelength 1.54056 Å.…”

“…The 10% cobalt-doped bismuth vanadate, BICOVOX 0.1, is reported to have the highest oxygen ion conductivity among all BIMEVOXs [1,2], owing to their application in technologically important devices, like fuel cell, oxygen sensors, etc. These applications demand the material to be in thin film form in which the ionic conductivity was found to get enhanced compared to bulk [3]. Charge transport in these polycrystalline thin films is prominently controlled by nature of grain boundaries [4].…”

Validation of BaIn0.3Ti0.7O2.85 as SOFC Electrolyte with Nd2NiO4, LSM and LSCF as Cathodes

“…The usual stabilised zirconia electrolyte material (YSZ) exhibits a very low oxygen ion conductivity level at intermediate temperatures (600-800°C), and research of new electrolytes is still necessary [5]. Due to its high oxygen ion conductivity below 700°C, BaIn 0.3 Ti 0.7 O 2.85 (BIT07) is regarded as a potential electrolyte material for SOFC [6].…”

Crystallization kinetics of new compound of V2O5–PbO–Li2O–Fe2O3 glass using differential thermal analysis

“…The study of vanadate glasses is of interest because of their relatively high electrical conductivity, thermal stability, glass formation range compared to other transition-metal oxide glasses [1], and their possible applications such as electrical threshold and memory switching as well as optical switching devices. The participation of vanadium in the glass network is also of great interest [2][3][4]. Several studies have been carried out of the local structure of pure V 2 O 5 glass [5][6][7][8][9][10][11], in which some complicated VO 4 , VO 5 and VO 6 polyhedra have already been proposed as the local structural units.…”