一种用于甘油氧化羰基化制备碳酸甘油酯的高效棒状CeO负载钯催化剂。
A highly efficient rod-like-CeO-supported palladium catalyst for the oxidative carbonylation of glycerol to glycerol carbonate.
作者信息
Wang Ziyan, Guo Shuo, Wang Zhimiao, Li Fang, Xue Wei, Wang Yanji
机构信息
Hebei Provincial Key Laboratory of Green Chemical Technology and High Efficient Energy Saving, School of Chemical Engineering and Technology, Hebei University of Technology Tianjin 300130 China
Tianjin Key Laboratory of Chemical Process Safety Tianjin 300130 China.
出版信息
RSC Adv. 2021 May 10;11(28):17072-17079. doi: 10.1039/d1ra02187g. eCollection 2021 May 6.
A rod-like-CeO-supported Pd catalyst (Pd/CeO-r) was prepared using two-step hydrothermal impregnation and used in the oxidative carbonylation of glycerol to produce glycerol carbonate. The characterization results showed that the Pd was highly dispersed on the surface of the CeO-r, and metallic Pd was the main species in the catalyst. The Pd/CeO-r exhibited good catalytic performance for the oxidative carbonylation of glycerol. Under optimized reaction conditions, the glycerol conversion and glycerol carbonate selectivity were 93% and 98%, respectively, and turnover frequency was 1240 h. However, because of the leaching of Pd and the growth of Pd particles, the catalyst was gradually deactivated throughout reuse.
采用两步水热浸渍法制备了棒状CeO负载的Pd催化剂（Pd/CeO-r），并将其用于甘油氧化羰基化制备碳酸甘油酯。表征结果表明，Pd高度分散在CeO-r表面，金属Pd是催化剂中的主要物种。Pd/CeO-r对甘油氧化羰基化表现出良好的催化性能。在优化的反应条件下，甘油转化率和碳酸甘油酯选择性分别为93%和98%，周转频率为1240 h⁻¹。然而，由于Pd的浸出和Pd颗粒的生长，催化剂在重复使用过程中逐渐失活。
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