2-(N -Methylbenzyl)pyridine: A Potential Liquid Organic Hydrogen Carrier with Fast H2 Release and Stable Activity in Consecutive Cycles
| Autor: | Jeong Woo Han, Ji Hoon Park, Young-Woong Suh, Kwanyong Jeong, Tae Wan Kim, Hyunguk Kwon, Jinho Oh |
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| Rok vydání: | 2018 |
| Předmět: |
Green chemistry
General Chemical Engineering Inorganic chemistry 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Catalysis Hydrogen storage chemistry.chemical_compound Hydrogen carrier General Energy chemistry Pyridine Environmental Chemistry Dehydrogenation Chemical stability General Materials Science 0210 nano-technology Benzene |
| Zdroj: | ChemSusChem. 11:641-641 |
| ISSN: | 1864-5631 |
| Popis: | The liquid organic hydrogen carrier (LOHC) 2-(N-methylbenzyl)pyridine (MBP) shows good potential for H2 storage based on reversible hydrogenation and dehydrogenation, with an H2 storage density of 6.15 wt %. This material and the corresponding perhydro product (H12 -MBP) are liquids at room temperature. Remarkably, H2 release is much faster from H12 -MBP over Pd/C than from the benchmark perhydro benzyltoluene over Pt/C at lower temperatures than 270 °C, owing to the addition of N atom into the benzene ring. Since this positive effect is unfavorable to the hydrogenation reaction, more Ru/Al2 O3 catalyst or prolonged reaction time must be applied for complete H2 storage. Experiments with repeated hydrogenation-dehydrogenation cycles reveal that reversible H2 storage and release are possible without degradation of the MBP/H12 -MBP pair. The prepared MBP satisfies the requirements for chemical stability, handling properties, and cytotoxicity testing. |
| Databáze: | OpenAIRE |
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