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The effect of phosphorus addition on silica-supported cobalt catalyst was investigated for Fischer-Tropsch synthesis (FTS). As shown by STEM images and chemisorption, the addition of phosphorus to cobalt of up to 1wt% increased the dispersion of cobalt. Further addition of phosphorus (e.g., 3 and 5wt.%), as demonstrated by TPR, pulse reoxidation, and XANES, significantly hindered the reduction of...
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