Bio‐Inspired Self‐Activating Polydimethylsiloxane‐Modified CrO<sub><i>x</i></sub>/Al<sub>2</sub>O<sub>3</sub> Catalyst for Acetylene Semihydrogenation
Abstract
AbstractBiomimetic approach is a nature‐driven strategy for designing functional materials to meet the industrial challenges. Here we demonstrate the bio‐inspired discovery of a self‐activating catalyst, with polydimethylsiloxane anchored over the surface of CrOx/Al2O3, exhibiting comparable performance with noble metallic catalysts for acetylene semihydrogenation. In addition, the dynamic movement of polymer chains with high flexibility renders the catalyst to impose proactive perturbation to the undesired coke precursors generated in reaction, analogous to the function of hair‐like cilia on the surface of respiratory epithelial cells, thus avoiding the site‐blocking induced by carbonaceous deposits and sustaining the catalyst stable for 1000 h without any deactivation. This study paves the way to develop other heterogeneous catalysts with high efficiency and durability via mimicking the innate defense mechanism of natural organisms.
Article Details
Authors (13)
Chenyang Shen
State Key Laboratory of Coordination Chemistry, Key Laboratory of Mesoscopic Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering
Yibo Wang
Jun Yao
Key Lab of Mesoscopic Chemistry, School of Chemistry and Chemical Engineering
Fengfeng Li
Feifei Mei
Key Lab of Mesoscopic Chemistry School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
Zhewei Zhang
Huili Lu
Key Lab of Mesoscopic Chemistry School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
Xuefeng Guo
State Key Laboratory of Coordination Chemistry, Key Laboratory of Mesoscopic Chemistry of Ministry of Education, Jiangsu Key Laboratory of Clean Energy Catalysis and Intelligent Green Chemical Engineering, School of Chemistry and Chemical Engineering
Luming Peng
State Key Laboratory of Coordination Chemistry, Key Laboratory of Mesoscopic Chemistry of Ministry of Education, Jiangsu Key Laboratory of Clean Energy Catalysis and Intelligent Green Chemical Engineering, School of Chemistry and Chemical Engineering
Nianhua Xue
Key Lab of Mesoscopic Chemistry, School of Chemistry and Chemical Engineering
Yan Zhu
Zhaoxu Chen
Weiping Ding
State Key Laboratory of Coordination Chemistry, Key Laboratory of Mesoscopic Chemistry of Ministry of Education, Jiangsu Key Laboratory of Clean Energy Catalysis and Intelligent Green Chemical Engineering, School of Chemistry and Chemical Engineering