Ni Nanoparticles Inlaid Nickel Phyllosilicate as a Metal鈥揂cid Bifunctional Catalyst for Low-Temperature Hydrogenolysis Reactions

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• 作者：Xiao Kong ; Yifeng Zhu ; Hongyan Zheng ; Xianqing Li ; Yulei Zhu ; Yong-Wang Li
• 刊名：ACS Catalysis
• 出版年：2015
• 出版时间：October 2, 2015
• 年：2015
• 卷：5
• 期：10
• 页码：5914-5920
• 全文大小：456K
• ISSN：2155-5435

文摘

Hydrogenolysis of carbon鈥搊xygen bonds is a versatile synthetic method, of which hydrogenolysis of bioderived 5-hydroxymethylfurfural (HMF) to furanic fuels is especially attractive. However, low-temperature hydrogenolysis (in particular over non-noble catalysts) is challenging. Herein, nickel nanoparticles (NPs) inlaid nickel phyllosilicate (NiSi-PS) are presented for efficient hydrogenolysis of HMF to yield furanic fuels at 130鈥?50 掳C, being much superior with impregnated Ni/SiO₂ catalysts prepared from the same starting materials. NiSi-PS also shows a 2-fold HMF conversion intrinsic rate and 3-fold hydrogenolysis rate compared with the impregnated Ni/SiO₂. The superior performance originated from the synergy of highly dispersed nickel NPs and substantially formed acid sites due to coordinatively unsaturated Ni (II) sites located at the remnant nickel phyllosilicate structure, as revealed by detailed characterizations. The model reactions over the other reference catalysts further highlighted the metal鈥揳cid synergy for hydrogenolysis reactions. NiSi-PS can also efficiently catalyze low-temperature hydrogenolysis of bioderived furfural and 5-methylfurfural, demonstrating a great potential for other hydrogenolysis reactions.