Multi-walled carbon nanotube-based composite materials as catalyst support for water-gas shift and hydroformylation reactions

Wolf P, Logemann M, Schörner M, Keller L, Haumann M, Wessling M (2019)

Publication Type: Journal article

Publication year: 2019

Journal

RSC Advances Royal Society of Chemistry

Book Volume: 9

Pages Range: 27732-27742

Journal Issue: 47

DOI: 10.1039/c9ra04830h

Abstract

In times of depleting fossil fuel reserves, optimizing industrial catalytic reactions has become increasingly important. One possibility for optimization is the use of homogenous catalysts, which are advantageous over heterogeneous catalysts because of mild reaction conditions as well as higher selectivity and activity. A new emerging technology, supported ionic liquid phase (SILP), was developed to permanently immobilize homogeneous catalyst complexes for continuous processes. However, these SILP catalysts are unable to form freestanding supports by themselves. This study presents a new method to introduce the SILP system into a support made from multi-walled carbon nanotubes (MWCNT). In a first step, SILP catalysts were prepared for hydroformylation as well as low-temperature water-gas shift (WGS) reactions. These catalysts were integrated into freestanding microtubes formed from MWCNTs, with silica (for hydroformylation) or alumina particles (for WGS) incorporated. In hydroformylation, the activity increased significantly by around 400% when the pure MWCNT material was used as SILP support. An opposite trend was observed for WGS, where pure alumina particles exhibited the highest activity. A significant advantage of the MWCNT composite materials is the possibility to coat them with separation layers, which allows their application in membrane reactors for more efficient processes.

Authors with CRIS profile

Patrick Wolf Lehrstuhl für Chemische Reaktionstechnik Markus Schörner Lehrstuhl für Chemische Reaktionstechnik Marco Haumann Lehrstuhl für Chemische Reaktionstechnik

Involved external institutions

Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen DE Germany (DE)

How to cite

APA:

Wolf, P., Logemann, M., Schörner, M., Keller, L., Haumann, M., & Wessling, M. (2019). Multi-walled carbon nanotube-based composite materials as catalyst support for water-gas shift and hydroformylation reactions. RSC Advances, 9(47), 27732-27742. https://dx.doi.org/10.1039/c9ra04830h

MLA:

Wolf, Patrick, et al. "Multi-walled carbon nanotube-based composite materials as catalyst support for water-gas shift and hydroformylation reactions." RSC Advances 9.47 (2019): 27732-27742.

BibTeX: Download