期刊
FUEL
卷 275, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2020.117896
关键词
Dehydrogenation; Liquid organic; Hydrogen carriers; PdO
资金
- National Natural Science Foundation of China [21978259]
- Zhejiang Provincial Natural Science Foundation of China [LR17B060002]
- Fundamental Research Funds for the Central Universities
The dehydrogenation of organics, e.g., dodecahydro-N-ethylcarbazole (12H-NECZ), at temperatures lower than 150 degrees C, plays a particularly important role in H-2 carriers by reducing energy consumption but remain a technical challenge. However, the dehydrogenation has currently been achieved using Pd-based catalysts at temperatures over 170 degrees C for 1.6 h. In this work, we reported a new strategy of using PdO as the active site, which can remarkably lower the dehydrogenation temperature compared with Pd-o state. The dehydrogenation of hydrogen-rich liquid organic hydrogen carriers (HR-LOHCs) catalyzed by 10 wt% PdO/AC showed a 95.8% yield of total dehydrogenated liquid organic hydrogen carriers (LOHCs) at only 100 degrees C for 60 h, and, as a comparison, 60.9% yield of LOHCs were obtained over 10 wt% Pd/AC at the same reaction conditions for 96 h. Notably, an almost complete yield of LOHCs (95.3%) was achieved at 140 degrees C for 8 h using PdO/AC.
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