Novel core-shell-like Ni-supported hierarchical beta zeolite catalysts on bioethanol steam reforming. (24th June 2020)

• Record Type: Journal Article
• Authors: Wang, Shiyao; He, Bo; Tian, Ren; Wu, Xu; An, Xia; Liu, Yaping; Su, Jing; Yu, Zhihui; Xie, Xianmei
• Is Part Of: International journal of hydrogen energy. Volume 45:Number 33(2020)
• Page Start: 16409
• Page End: 16420
• Publication Date: 2020-06-24
• Subjects: Biomass -- Hierarchical beta zeolite -- Bioethanol steam reforming -- Ni-based catalyst -- Core-shell; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2020.04.109
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: Hierarchical-Beta zeolites have been hydrothermally synthesized by adding a new gemini organic surfactant. The used gemini surfactant play the role of a "pore-forming agents" on the mesoscale, on the same time, providing alkaline environment for the system. With this hierarchical Beta zeolite as the core support, we successfully prepared a shell layer of Ni-containing (22 wt%) petal-like core-shell-like catalyst and applied it to bioethanol steam reforming. At the reaction temperature of 350 °C–550 °C, the conversion rate of ethanol and the selectivity of hydrogen were always above 85% and 70%. After reaction of 100 h on stream at 400 °C, there were not obvious inactivation could be observed on NiNPs/OH-MBeta catalyst. Graphical abstract: A kind of catalyst of core-shell structure whose petal-like shell layer contains Ni was prepared and applied it to ESR. Image 1 Highlights: Hierarchical Beta zeolite was synthesized in the free-Na + reaction. A core-shell-like structure whose petal-like shell layer contains Ni was prepared. Ni is embedded on the surface of hierarchical Beta by chemical reaction in situ. Realize the immobilization and high dispersion of the Ni.