西安交通大學(xué)王施媛攜巖征快開反應(yīng)釜，發(fā)表有機液態(tài)儲氫材料加氫催化劑論文
點擊次數(shù)：266更新時間：2025-08-29
通訊作者：方濤，西安交通大學(xué)化工學(xué)院，教授；王斌，西安交通大學(xué)化工學(xué)院，副研究員。
Developing both high-performance and cost-effective hydrogenation catalysts is of strategic importance for advancing the industrialization of liquid organic hydrogen carrier (LOHC) technology. Herein, a series of Ni-based catalysts supported on Ni/Al mixed metal oxides (Ni/NiAl-MMO) are prepared by in-situ topotactic transformation of NiAl-LDH precursors, systematically investigating the synergistic enhancement mechanism regulated by the Ni-Al interfacial interaction and the anchoring effect of the precursor on the size and electronic structure of active metal nanoparticles, as well as their catalytic enhancement effects in N-ethylcarbazole (NEC) hydrogenation. The results show that the optimized Ni/Ni1Al2-MMO-500 catalyst achieved both small size and high electron density of active metal particles under the influence of anchoring effect of the precursor and strong Ni-Al interfacial interaction. The synergistic size and electronic enhancement endow the catalyst with superior catalytic activity in NEC hydrogenation, exceeding all reported Ni-based catalysts and exhibiting catalytic efficiency comparable to that of the widely used commercial precious metal hydrogenation catalyst, 5 wt% Ru/Al2O3, with high catalytic performance sustained across five NEC hydrogenation cycles.
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