Stable and Selective Dehydrogenation of Methylcyclohexane using Supported Catalytically Active Liquid Metal Solutions – Ga52Pt/SiO2 SCALMS

Oshin S, Nair S, Taccardi N, Wolf M, Soegaard A, Haumann M, Wasserscheid P (2020)

Publication Type: Journal article

Publication year: 2020

Journal

ChemCatChem Wiley-VCH Verlag

DOI: 10.1002/cctc.202000671

Abstract

The use of gallium-rich, Supported Catalytically Active Liquid Metal Solution (SCALMS) is a promising new concept to achieve catalysis with atomically dispersed active metal atoms. Expanding our previous work on short alkane dehydrogenation, we present here the application of SCALMS for the dehydrogenation of methylcyclohexane (MCH) to toluene (TOL) using a Ga52Pt alloy (liquid under reaction conditions) supported on silica. Cycloalkane dehydrogenation catalysis has attracted great attention recently in the context of hydrogen storage concepts using liquid organic hydrogen carrier (LOHC) systems. The system under investigation showed high activity and stable conversion of MCH at 450 °C and atmospheric pressure for more than 75 h time-on-stream (XMCH=15 %) with stable toluene selectivity (STOL) of 85 %. Compared to commercially available Pt/SiO2, the SCALMS system resulted in higher yields and robustness. Baseline experiments with Pt-free Ga/SiO2 under identical conditions revealed the decisive influence of Pt dissolved in the liquid Ga matrix.

Authors with CRIS profile

Oshin Sebastian Lehrstuhl für Chemische Reaktionstechnik Sharanya Nair Lehrstuhl für Chemische Reaktionstechnik Nicola Taccardi Lehrstuhl für Chemische Reaktionstechnik Moritz Wolf Lehrstuhl für Chemische Reaktionstechnik Alexander Soegaard Lehrstuhl für Chemische Reaktionstechnik Marco Haumann Lehrstuhl für Chemische Reaktionstechnik Peter Wasserscheid Lehrstuhl für Chemische Reaktionstechnik

How to cite

APA:

Oshin, S., Nair, S., Taccardi, N., Wolf, M., Soegaard, A., Haumann, M., & Wasserscheid, P. (2020). Stable and Selective Dehydrogenation of Methylcyclohexane using Supported Catalytically Active Liquid Metal Solutions – Ga52Pt/SiO2 SCALMS. ChemCatChem. https://dx.doi.org/10.1002/cctc.202000671

MLA:

Oshin, Sebastian, et al. "Stable and Selective Dehydrogenation of Methylcyclohexane using Supported Catalytically Active Liquid Metal Solutions – Ga52Pt/SiO2 SCALMS." ChemCatChem (2020).

BibTeX: Download