Abstract
Furfuryl alcohol (FFA) is an important organic chemical for the chemical industry, however, an efficient chromium-free catalyst with high stability is still expected. Herein, a Co3AlOx catalyst was successfully prepared for the synthesis of FFA via the furfural (FF) hydrogenation, which exhibited excellent stability and catalytic activity with a FFA yield of 96.2 %. The Co2+ species significantly promoted the formation of the oxygen vacancy on the surface of Co3AlOx, which favored the adsorption and activation of H2, The Co3+ species provided anchors for the adsorption of the aldehyde group in FF. The selective adsorption of FF via the O-terminal of the aldehyde group in a vertical or tilted configuration on the surface of CoxAlOy ensured the efficient hydrogenation of FF to FFA.
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