1992
DOI: 10.1007/bf02843553
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Design and fabrication of an automated thermal desorption gas-solid reaction system: Oxidation of ammonia and methanol over YBa2Cu3O7−δ(123) oxide systems

Abstract: A fully automated, versatile Temperature Programmed Desorption (TDP), Temperature Programmed Reaction (TPR) and Evolved Gas Analysis (EGA) system has been designed and fabricated. The system consists of a micro-reactor which can be evacuated to 10-6 torr and can be heated from 30 to 750~ at a rate of 5 to 30~ per minute. The gas evolved from the reactor is analysed by a quadrupole mass spectrometer (1-300 amu). Data on each of the mass scans and the temperature at a given time are acquired by a PC/AT system to… Show more

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Cited by 8 publications
(2 citation statements)
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“…Electron diffraction patterns were obtained using a JEOL 200CX transmission electron microscope (TEM) to elucidate microstructural features. The sample was heated in oxygen atmosphere in a temperature-programmed reaction (TPR) system attached to a VG QXK300 quadrupole mass spectrometer to study nitride phase formation. In a typical experiment, about 200 mg of the sample was loaded and the reactor was evacuated to 10 -6 Torr.…”
Section: Methodsmentioning
confidence: 99%
“…Electron diffraction patterns were obtained using a JEOL 200CX transmission electron microscope (TEM) to elucidate microstructural features. The sample was heated in oxygen atmosphere in a temperature-programmed reaction (TPR) system attached to a VG QXK300 quadrupole mass spectrometer to study nitride phase formation. In a typical experiment, about 200 mg of the sample was loaded and the reactor was evacuated to 10 -6 Torr.…”
Section: Methodsmentioning
confidence: 99%
“…The oxygen contents of the samples were determined by iodometric titration. The thermal desorption of oxygen and stoichiometric and catalytic oxidations were carried out employing home-built equipment . In a typical desorption experiment, 250 mg of the solid was placed in an 8 mm diameter, continuous flow, cylindrical quartz reactor.…”
Section: Methodsmentioning
confidence: 99%