Abstract
Back cover image: Ca/AlOx catalysts are one of the most popular catalysts in promoting ketonization of carboxylic acids, for bio-oil upgrading and producing bio-derived chemicals. However, the commercialization of these catalysts suffers from unclear active sites and significant deactivation in long-term use. Alkaline-metal addition can improve their activity and stability. In article number 10.1002/cnl2.4, Huang and co-workers reported the design of ultra-stable Ca/AlOx catalysts upon Na addition, the resulting NaAlO2 populated Ca/AlOx catalyst can provide 100% acetone selectivity at the complete conversion of acetic acid at 400 °C beyond 400 h reaction, which paves the way for ration design of high-performance catalysts for ketonization reactions.
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