Abstract
A novel flow-through hydrothermal process, termed the Rapid Thermal Decomposition of precursors in Solution (RTDS), has been used to generate large quantities of ultra-fine, nano-crystalline hematite ({alpha}-Fe{sub 2}O{sub 3}), 6-line ferrihydrite (5Fe{sub 2}O{sub 3}{center_dot}9H{sub 2}O) and ferric oxyhydroxysulfate powders. The heterogeneous catalytic activity of these powders towards C-C bond scission in the model compound naphthyl bibenzylmethane and in the first-stage liquefaction of Blind Canyon seam coal was investigated. The effects of the crystalline phase and the agglomerate size of these powders on their catalytic activity are reported.
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