Halloysite-Based Nanomotors with Embedded Palladium Nanoparticles for Selective Benzyl Alcohol Oxidation
Source abstract
Abstract
The liquid-phase oxidation benzyl alcohol using hydrogen peroxide (H2O2) as an oxidant is a promising and green strategy for manufacturing aldehydes or/and ketones. Herein palladium (Pd) nanoparticles were impregnated in lumens of halloysite nanotubes by using ionic liquid (1-(2′-hydroxylethyl)-2,3-dimethylimidazolium chloride) as directing agents. On the basis of the asymmetric scroll-like structure of halloysite and the catalytic decomposition ability of Pd toward H2O2, the prepared catalyst (Pd-IL-HNTs) exhibited powerful self-propelled movement at an average speed of 276 ± 35 μm/s in 30.0 wt % H2O2 solution. The specific interaction between nanomotors and benzyl alcohol was observed as a consequence of self-moving behavior and hydrophobic interaction introduced by ionic liquid. With the synergistic coupling of the catalytic ability and powerful movement, Pd-IL-HNTs displayed outstanding catalytic benzyl alcohol oxidation performance. Compared to other nonpropelling catalysts using lamellar clay (montmorillonite and kaolinite) as supports, such HNT-based nanomotors registered superior catalytic performance, and the TOF value of 118.1 h−1 was obtained.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Pickering emulsions and particle stabilization · Micro and Nano Robotics · Mesoporous Materials and Catalysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory of Automobile Materials of Ministry of Education, School of Materials Science and Engineering, Solid Waste Recycling Engineering Research Center of Jilin Province, Jilin University, Changchun 130022, China
Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, and Electron Microscopy Center, Jilin University, Changchun 130012, China
Key Laboratory of Mineral Resources Evaluation in Northeast Asia, Ministry of Natural Resources, Changchun 130061, China
Jilin Baofeng Ball Clay Company, Ltd., Hongyang street, Dakouqin Town, Longtan District, Jilin City 132207, China
Funding
Department of Science and Technology of Jilin Province · Polit National Laboratory for Marine Science and Technology · National Natural Science Foundation of China · State Key Laboratory of Automotive Simulation and Control · Mineralogical mechanism of metasilicous kaolinite and development of new material technology
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