THE REDUCTION OF HIGH SURFACE AREA URANIUM TRIOXIDE
Journal Article
·
· Journal of Physical Chemistry (U.S.)
The hydrogen reduction of high surface area, x-ray amorphous, UO/sub 3/ was studied at temperatures of 300 to 400 deg C and at hydrogen partial pressures of 0.25 to 1 atmos. The reduction was found to consist of two consecutive steps associated with the reactions: UO/sub 3/ + H/sub 3/ -- UO/sub 2.56/ and UO/sub 2.56/ + H/sub 2/ -- UO/sub 2/. The linear weight loss-reaction time curves indicated that both reactions are primarily controlled by adsorption of hydrogen on the product oxide surface. Activation energies of 27 and 39 kcal/mole were calculated for the reduction of UO/sub 3/ and of UO/sub 2.56/. (auth)
- Research Organization:
- National Lead Co. of Ohio, Cincinnati
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-14-006315
- OSTI ID:
- 4183199
- Journal Information:
- Journal of Physical Chemistry (U.S.), Journal Name: Journal of Physical Chemistry (U.S.) Vol. Vol: 64; ISSN JPCHA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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