NDLI: Homogeneous precipitation method preparation of modified red mud supported Ni mesoporous catalysts for ammonia decomposition

Content Provider	Royal Society of Chemistry (RSC)
Author	Yan, Zhao-Li Yuan, Zhong-Yong Deng, Qing-Fang Sun, Guang Hari, Bala Cao, Jian-Liang Wang, Xiao-Dong Zhang, Zhan-Ying Wang, Yan
Copyright Year	2014
Abstract	Red mud modified by an acid digestion and alkali reprecipitation approach was employed as support for the preparation of Ni/MRM catalysts using the homogeneous precipitation method. The textural and structural properties of the as-received red mud (RM), the modified red mud (MRM) and the as-prepared Ni/MRM catalysts were characterized by X-ray diffraction (XRD), energy dispersive X-ray fluorescence (EDXRF), thermogravimetry-differential scanning calorimetry analysis (TG-DSC), Fourier transform infrared spectra (FT-IR), transmission electron microscopy (TEM) combined with energy-dispersive X-ray spectroscopy (EDX) and N2 sorption techniques. The analysis results revealed a mesoporous nanocatalyst system with high surface area and uniform pore-size distribution. The results of the catalytic activity measurements showed that these mesoporous nanostructured Ni/MRM catalysts were very active for ammonia decomposition. The catalyst with 15% Ni loading and calcined at 600 °C exhibited the highest catalytic activity. Due to its unique properties and the feature of resource utilization of industrial solid waste, MRM holds great promise for developing catalysts and catalyst supports for applications in various catalytic reactions including catalytic ammonia decomposition.
Starting Page	361
Ending Page	368
Page Count	8
File Format	HTM / HTML PDF
ISSN	20444753
Volume Number	4
Issue Number	2
Journal	Catalysis Science & Technology
DOI	10.1039/c3cy00519d
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Infrared spectroscopy Acid Red mud Energy-dispersive X-ray spectroscopy MRM Fourier transform Calcination Alkali metal Fourier-transform infrared spectroscopy X-ray crystallography Sorption Mesoporous material Ammonia X-ray fluorescence Transmission electron microscopy Fourier Calorimetry
Content Type	Text
Resource Type	Article
Subject	Catalysis

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