The NiAl mixed oxides: The relation between basicity and SO2 removal capacity
发表时间:2019-03-09
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- 论文类型:
- 期刊论文
- 第一作者:
- Zhao, Ling
- 通讯作者:
- Li, XY (reprint author), Dalian Univ Technol, Sch Environm Sci & Technol, Key Lab Ind Ecol & Environm Engn, Dalian 116024, Peoples R China.
- 合写作者:
- Li, Xinyong,Qu, Zhenping,Zhao, Qidong,Liu, Shaomin,Hu, Xijun
- 发表时间:
- 2011-07-29
- 发表刊物:
- SEPARATION AND PURIFICATION TECHNOLOGY
- 收录刊物:
- SCIE、EI
- 文献类型:
- J
- 卷号:
- 80
- 期号:
- 2
- 页面范围:
- 345-350
- ISSN号:
- 1383-5866
- 关键字:
- SO2 removal; NiAl mixed oxides; Adsorption
- 摘要:
- A series of NiAl mixed oxides derived from hydrotalcite-like compounds were prepared by a urea hydrolysis method, and characterized by TGA, XRD, SEM, CO2-TPD, N-2 adsorption/desorption and XPS techniques. The SO2 adsorption capacity of the materials correlated closely with their basicity and active oxygen species on the surface, as estimated by a volumetric method. The NiAl mixed oxide with the optimal Ni/Al molar ratio of 3 showed the best performance of SO2 adsorption. Moreover, its adsorption equilibrium of a type I isotherm and pore opening in the quasi-micropore region significantly improve the adsorption performance for low-concentration SO2. (C) 2011 Elsevier B.V. All rights reserved.
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- 否