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Morphology Effect of CeO2 on Ni/CeO2 Catalysts for Selective Hydrogenation of Cinnamaldehyde
Chemical Physics ( IF 2.0 ) Pub Date : 2020-12-13 , DOI: 10.1016/j.chemphys.2020.111079
Xuejiao Wei , Xiaodong Rang , Wenhao Zhu , Mei Xiang , Yaoyao Deng , Fuhua Jiang , Rui Mao , Zhenwei Zhang , Xianqiang Kong , Fei Wang

A series of CeO2 with different morphologies (nanoparticles, nanorods and nanocubes) supported nickel catalysts were synthesized successfully using the hydrothermal route to investigate the morphology effects of CeO2 on these Ni/CeO2 catalysts for selective hydrogenation of cinnamaldehyde (CAL). Catalytic activities of three Ni/CeO2 catalysts were ranked in the order of Ni/CeO2-R > Ni/CeO2-P > Ni/CeO2-C, which was attributed to the the highest concentration of surface oxygen vacancies in Ni/CeO2-R. These may lead more active surface oxygen and better redox properties on Ni/CeO2-R catalyst. More importantly, Ni/CeO2-R also showed excellent catalytic recycling stability, reflecting the morphological effect of nanocatalysis.



中文翻译:

CeO 2对Ni / CeO 2催化肉桂醛选择性加氢反应的形貌影响

利用水热途径成功合成了一系列不同形态(纳米粒子,纳米棒和纳米立方体)的CeO 2负载镍催化剂,研究了CeO 2对这些Ni / CeO 2催化剂的选择性催化肉桂醛加氢的形态学影响。三种Ni / CeO 2催化剂的催化活性按Ni / CeO 2 -R> Ni / CeO 2 -P> Ni / CeO 2 -C的顺序排列,这归因于Ni中表面氧空位的最高浓度/ CeO 2 -R。这些可能导致更多的活性表面氧和更好的Ni / CeO 2氧化还原特性-R催化剂。更重要的是,Ni / CeO 2 -R还显示出优异的催化循环稳定性,反映出纳米催化的形态学效果。

更新日期:2020-12-14
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