Investigation of the storage and release of oxygen in a Cu-Pt element of a high-temperature microcombustor

14th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications

物理学;能源学

Khaji, Z.^1 ; Sturesson, P.^1,2,3 ; Hjort, K.^1 ; Klintberg, L.^1 ; Thornell, G.^1,2

Uppsala University, Division of Microsystems Technology, Ångström Laboratory, Box 534, Uppsala

SE-7521, Sweden^1

Uppsala University, Ångström Space Technology Centre, Box 534, Uppsala

SE-75121, Sweden^2

Swedish National Defence College, Division of Military Technology, Box 27805, Stockholm

SE-11593, Sweden^3

关键词: Cofired ceramics;    Energy dispersive spectroscopies (EDS);    High temperature;    Isotopic measurement;    Organic samples;    Temperature coefficient resistance;    Thermal gravimetric analyses (TGA);    Thermal oxidation;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/557/1/012078/pdf
DOI  :  10.1088/1742-6596/557/1/012078

来源: IOP

【 摘 要 】

A miniature combustor for converting organic samples into CO2with application in carbon isotopic measurements has been manufactured and evaluated. The combustor was made of High-Temperature Co-fired Ceramic (HTCC) alumina green tapes. The device has a built-in screen printed heater and a temperature sensor made of platinum, co-sintered with the ceramic. A copper oxide oxygen supply was added to the combustor after sintering by in-situ electroplating of copper on the heater pattern followed by thermal oxidation. Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS) and Thermal Gravimetric Analysis (TGA) were used to study electroplating, oxidation and the oxide reduction processes. The temperature sensor was calibrated by use of a thermocouple. It demonstrates a temperature coefficient resistance of 4.66×10-3/°C between 32 and 660 °C. The heat characterization was done up to 1000 °C by using IR thermography, and the results were compared with the data from the temperature sensor. Combustion of starch confirmed the feasibility of using copper oxide as the source of oxygen of combustion.