| 题名 | Inherent thermal regeneration performance of different MnO2 crystallographic structures for mercury removal |
| 作者 | |
| 通讯作者 | Duan, Yufeng; Xu, Zhenghe |
| 发表日期 | 2019-07-15
|
| DOI | |
| 发表期刊 | |
| ISSN | 0304-3894
|
| EISSN | 1873-3336
|
| 卷号 | 374页码:267-275 |
| 摘要 | Manganese oxides with different crystallographic structures were investigated for gas-phase elemental mercury removal. The inherent thermal regeneration performance and mechanism of alpha- and gamma-MnO2 were studied. The manganese dioxides were found to possess a mercury removal efficiency of higher than 96% even after 120 min mercury exposure except for beta-MnO2 which removed much less mercury than Mn2O3. The alpha-MnO2 was found to have a higher recyclability of mercury capture and better durability for regeneration than gamma-MnO2. During the first 1 h of exposure, alpha-MnO2 showed an excellent mercury capacity of 128 mu g/g over 5 regeneration cycles. While for gamma-MnO2, the mercury capacity of the fifth cycle was reduced to 68.74 mu g/g, which is much lower than 131.42 mu g/g for the first cycle. The microstructure of alpha-MnO2 was maintained throughout regeneration cycles due to its capability to retain lattice oxygen. In comparison, gamma-MnO2 experienced reconstruction and phase transformation induced by oxygen vacancies due to lattice oxygen loss during regeneration process, leading to a degradation in mercury capture. The alpha-MnO2 oriented composite was found Corresponding to be better developed into a regenerable catalytic sorbent for mercury removal from flue gases of coal-fired power plants. |
| 关键词 | |
| 相关链接 | [来源记录] |
| 收录类别 | |
| 语种 | 英语
|
| 学校署名 | 通讯
|
| 资助项目 | Postgraduate Research & Practice Innovation Program of Jiangsu Province[KYLX16_0201]
|
| WOS研究方向 | Engineering
; Environmental Sciences & Ecology
|
| WOS类目 | Engineering, Environmental
; Environmental Sciences
|
| WOS记录号 | WOS:000472694500031
|
| 出版者 | |
| EI入藏号 | 20191706813361
|
| EI主题词 | Coal
; Coal fueled furnaces
; Fossil fuel power plants
; Mercury (metal)
; Oxides
; Oxygen vacancies
|
| EI分类号 | Solid Fuels:524
; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3
; Chemical Products Generally:804
; Crystalline Solids:933.1
|
| ESI学科分类 | ENGINEERING
|
| 来源库 | Web of Science
|
| 引用统计 |
被引频次[WOS]：49
|
| 成果类型 | 期刊论文 |
| 条目标识符 | http://kc.sustech.edu.cn/handle/2SGJ60CL/25504 |
| 专题 | 工学院_材料科学与工程系 |
| 作者单位 | 1.Southeast Univ, Key Lab Energy Thermal Convers & Control, Minist Educ, Sch Energy & Environm, Nanjing 210096, Jiangsu, Peoples R China 2.Univ Alberta, Dept Chem & Mat Engn, Edmonton, AB T6G 1H9, Canada 3.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China |
| 通讯作者单位 | 材料科学与工程系 |
| 推荐引用方式 GB/T 7714 |
Yao, Ting,Duan, Yufeng,Bisson, Teresa M.,et al. Inherent thermal regeneration performance of different MnO2 crystallographic structures for mercury removal[J]. JOURNAL OF HAZARDOUS MATERIALS,2019,374:267-275.
|
| APA |
Yao, Ting.,Duan, Yufeng.,Bisson, Teresa M..,Gupta, Rajender.,Pudasainee, Deepak.,...&Xu, Zhenghe.(2019).Inherent thermal regeneration performance of different MnO2 crystallographic structures for mercury removal.JOURNAL OF HAZARDOUS MATERIALS,374,267-275.
|
| MLA |
Yao, Ting,et al."Inherent thermal regeneration performance of different MnO2 crystallographic structures for mercury removal".JOURNAL OF HAZARDOUS MATERIALS 374(2019):267-275.
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| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | 操作 | |
| Yao-2019-Inherent th（12149KB） | -- | -- | 限制开放 | -- | ||
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