Synthesis of TiO2-modified Fischer-Tropsh catalysts by Atomic Layer Deposition

Abstract

The Fischer-Tropsch Synthesis (FTS) is a process that forms hydrocarbon chains from CO and H2. In this work, catalysts for the FTS are synthesized. These catalysts consist of an alumina support (Al2O3), a layer of TiO2 of variable thickness deposited with ALD and Co as active phase. The catalysts synthesized with 5 deposition cycles were found to be significantly more active for FTS than those synthesized with 0, 10 and 20 deposition cycles. Additionally, the selectivity for chains of more than 5 carbons (C5+) was very high for all catalysts.