| Autor: |
Eva Loccufier, Geert Watson, Yingrui Zhao, Maria Meledina, Robbe Denis, Parviz Gohari Derakhshandeh, Pascal Van Der Voort, Karen Leus, Damien P. Debecker, Klaartje De Buysser, Karen De Clerck |
| Přispěvatelé: |
UCL - SST/IMCN/MOST - Molecular Chemistry, Materials and Catalysis |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Applied Catalysis B: Environmental, Vol. 320, p. 121972 (2023) |
| Popis: |
An important challenge in the valorization of CO2 and H2 into fuels is the development of a stable, reusable and easy to handle heterogeneous catalyst. Here, a silica nanofibrous membrane is investigated as carrier for Ru nanoparticles, themselves encapsulated inside the metal organic framework (MOF) Cr-MIL-101. The catalytic membrane is investigated for the Sabatier methanation reaction. The direct electrospinning of a tetraorthosilicate (TEOS) sol results in a highly thermal resistant silica nanofibrous structure (up to 1100 °C) with pores between the fibers in the µm-range, allowing a high gas throughput with low pressure requirements. A straightforward dip-coating procedure of the carrier was used to obtain a Ru@MIL-101 functionalized silica nanofibrous veil, avoiding Ru clustering. The obtained catalytic membrane exhibited an apparent turnover frequency of 3257 h-1 at 250 °C. This system therefore paves the way towards structured reactors for efficient CO2 hydrogenation processes. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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