Abstract

Abstract Carbon nanotubes (CNTs) are relatively potential materials for catalyst supports. CNT-supported Cu catalysts were prepared by an impregnation method and a polyol process. The catalytic activity was examined under different reaction atmospheres, Cu contents, and sizes of supports for CO oxidation. The experimental results showed that the active phase on the catalyst prepared by the impregnation method (10–20 nm) was smaller than that on the catalyst prepared by the polyol process (30–50 nm). Furthermore, the smaller active phase showed better performance for CO oxidation. Therefore, catalysts prepared by the impregnation method had a lower activation energy (57.47 kJ mol −1 ) than those prepared by the polyol process. The optimum CNT-supported Cu catalyst prepared by the impregnation method using 10–20 nm CNTs had a Cu content of 13.4 wt.%, and a CO conversion of 33% achieved at 125 °C with a total space velocity of 1.56 × 10 5 h −1 .

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.