Reactivity of young chars via energetic distribution measurements. Quarterly technical progress report, 15 September 1991--15 December 1991
The temperature programmed desorption (TPD) has become a standard technique for investigating the physico-chemical state of adsorbed species on surfaces. In this reporting period, a new TPD-MS/TGA (mass spectrometry/thermal gravimetric analysis) system has been designed, and all the necessary components have been acquired. This new system is built around a new Cahn D-200 digital recording microbalance, which was recently purchased for this purpose. The TPD reactor essentially becomes the ``hangdown`` tube for this microbalance. The control and data logging of this new experimental system will be performed using a Macintosh II microcomputer with a GW Instruments 625 Jr. interface. A new ``hangdown`` tube is being constructed, as well as a new furnace to accommodate it.
- Research Organization:
- Brown Univ., Providence, RI (United States). Div. of Engineering
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG22-90PC90307
- OSTI ID:
- 10138193
- Report Number(s):
- DOE/PC/90307-5; ON: DE92011910
- Resource Relation:
- Other Information: PBD: [1991]
- Country of Publication:
- United States
- Language:
- English
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