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Exploring photocatalysts to foster CO2 photoreduction into high value‐added chemicals is of great significance. Lead halide perovskites (LHPs) have recently been extensively investigated as photocatalysts, owing to their facile fabrication and prominent optoelectronic properties. However, the toxicity of lead and instability will hinder their future large‐scale applications. To address these challenges,...
Sn-58Bi alloy particles and La2O3 were mechanically mixed and melted to prepare the composite solder. The microstructures of the solder and the IMC grain sizes were analyzed. Morphology results showed that the adding of La2O3 could restrain the segregation of Bi-rich phases and reduce the brittleness of the solder alloy. The hardness of solder increased with the addition of La2O3, which were tested...
In this paper we studied the nucleation process of YBCO films on lattice matched substrates through modified TFA-MOD approach. An experiment designed to investigate gas flow speed on different locations of the same sample shows that nucleation does not occur on regions with HF built up. Extending conversion time shows little or no effect in these regions in terms of nucleation. Thus, a criterion has...
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