Tube inside translucent platinum film with the function of temperature measurement for heating window applications

Abstract

For experiments of flow boiling, a window with the functions of heating and temperature measurement of the heater is an ideal tool to observe flow patterns and measure the heat transfer coefficient at the same time. In the present work, we prepared a translucent tube typically 90 mm in length and 7.0 mm in i.d. with the functions of directly heating fluid flowing through and measuring the temperature of the heating surface for this purpose. Conductive platinum (Pt) film was prepared on the inner surface of a quartz tube by using the precursor solution having a resistance of 50–70 Ω and a good linear relationship between resistance and temperature. We demonstrated the processes of nucleation, evaporation and boiling of water at different temperatures with the heating window. This attempt may provide a tool for the accurate measurement of heat transfer coefficient during the boiling process.

In Situ SERS Detection of Photocatalytic Degradation of Aminothiophenol on Carbon-Nanotubes/CoPt Hollow Nanoparticles Composite

“…Sub-10 nm nanostructures can display novel properties distinct from the bulk, due to the high specific surface area and the quantum effect . Pt nanocrystals are well known for their catalytical properties, and heating can effectively increase the activity of Pt atoms. − In this study, sub-10 nm bimetallic CoPt hollow nanoparticles (NPs) were synthesized by a solvent-method at room temperature. These nanostructures were used as both SERS substrates and catalysts, for the in situ studies of the temperature-dependent degradation of surface-adsorbed p -aminothiophenol (PATP) molecules.…”