DOI: 10.1016/j.jcou.2016.05.007
Scopus记录号: 2-s2.0-84973546895
论文题名: Facile synthesis of Ni/SiO2 catalyst by sequential hydrogen/air treatment: A superior anti-coking catalyst for dry reforming of methane
作者: Gao X.Y. ; Hidajat K. ; Kawi S.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2016
卷: 15 语种: 英语
英文关键词: Calcination
; Dry reforming of methane
; Hydrogen
; Ni
; SiO2
Scopus关键词: Calcination
; Carbon
; Carbon dioxide
; Catalyst activity
; Catalysts
; Hydrogen
; Metal nanoparticles
; Methane
; Nanoparticles
; Nickel
; Particle size
; Silicates
; Sintering
; Catalytic performance
; Dry reforming-of-methane
; Hydrogen treatments
; Incipientwetness impregnation
; Sequential treatments
; Silicate structures
; SiO<sub>2</sub>
; Strong metal support interaction
; Catalytic reforming
英文摘要: Graphical abstract: A novel sequential treatment method (hydrogen treatment prior to air calcination) was used to prepare Ni/SiO2 catalysts by incipient wetness impregnation (IWI). This catalyst showed a uniform and small Ni particle size (d=2.5±0.8nm) and a strong metal-support interaction (TR≈670°C), yielding an excellent catalytic performance (85% for CO2 conversion and 80% for CH4 conversion) with negligible metal sintering and no carbon deposition over 100-h dry reforming of methane (DRM) reaction. The first-step hydrogen treatment removed the oxygen radicals produced from the decomposition of Ni nitrate and the second-step air calcination stabilized Ni nanoparticles by forming Ni (phyllo)silicate structure. Therefore, the sequential calcination method produced small, uniform and highly dispersed Ni nanoparticles, strong metal-support interaction and excellent catalytic performances for DRM reaction. © 2016 Elsevier Ltd. 资助项目: National Environment Agency - Singapore
; National Environment Agency - Singapore
; National University of Singapore
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52903
Appears in Collections: 影响、适应和脆弱性