DOI: 10.1016/j.jcou.2016.11.002
Scopus记录号: 2-s2.0-85006816494
论文题名: A sintering and carbon-resistant Ni-SBA-15 catalyst prepared by solid-state grinding method for dry reforming of methane
作者: Zhang Q. ; Zhang T. ; Shi Y. ; Zhao B. ; Wang M. ; Liu Q. ; Wang J. ; Long K. ; Duan Y. ; Ning P.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2017
卷: 17 语种: 英语
英文关键词: Dry reforming
; Ni-KIT-6
; Ni-SBA-15
; Solid-state grinding
Scopus关键词: Carbon dioxide
; Catalyst activity
; Deposition
; Grinding (machining)
; Mesoporous materials
; Methane
; Sintering
; Carbon deposition
; Dry reforming
; Dry reforming-of-methane
; Impregnation methods
; Mesoporous support
; Ordered mesoporous silicas
; Reduction temperatures
; Strong interaction
; Nickel
英文摘要: Graphical abstract: Ni-SBA-15 was prepared by solid-state grinding method and applied to the dry reforming of methane. Coking and sintering were inhibited simultaneously by the strong interaction between the well-dispersed Ni species and SBA-15. The conversions of CO2 and CH4 over Ni-SBA-15 showed remarkably stable even reacted at 700°C for 100h. Nickel-containing ordered mesoporous silica materials (Ni-SBA-15, Ni-KIT-6 and Ni-MCM-41) were prepared by solid-state grinding method and applied to the dry reforming of methane (DRM). After reacting at 700°C for 100h, the catalytic activity and stability declined in the following sequence: Ni-SBA-15>Ni-KIT-6>Ni-MCM-41. The characterization results indicated that the average size of the Ni particles on Ni-SBA-15 was ∼3.2nm, and no visible NiO diffraction peak observed on Ni-SBA-15, implying that the nickel species were highly dispersed on the SBA-15. Moreover, the reduction temperature of Ni species on Ni-SBA-15 obviously shifted to higher temperature compared with the Ni/SBA-15 prepared by impregnation method, indicating that the interaction between the Ni species and mesoporous support was enhanced. The Ni-SBA-15 also presented excellent resistance to the carbon deposition, and the carbon deposition decreased in the order of Ni-MCM-41 (38.8%)>Ni-KIT-6 (8.1%)>Ni-SBA-15 (6.3%) after reacting at 700°C for 100h. © 2016 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52829
Appears in Collections: 影响、适应和脆弱性
There are no files associated with this item.
Recommended Citation:
Zhang Q.,Zhang T.,Shi Y.,et al. A sintering and carbon-resistant Ni-SBA-15 catalyst prepared by solid-state grinding method for dry reforming of methane[J]. Journal of CO2 Utilization,2017-01-01,17