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Protic ionic liquid [Bim][NTf2] with strong hydrogen bond donating ability for highly efficient ammonia absorption
Shang, Dawei1,2; Zhang, Xiangping1; Zeng, Shaojuan1; Jiang, Kun1,2; Gao, Hongshuai1; Dong, Haifeng1; Yang, Qingyuan3; Zhang, Suojiang1
2017
发表期刊GREEN CHEMISTRY
ISSN1463-9262
卷号19期号:4页码:937-945
摘要Cost-efficient and environmentally benign treatment of NH3-containing exhaust gas has been a challenge. Ionic liquids (ILs) due to their unique structures and properties are recognized as potential solvents to absorb NH3. In this study, three types of ILs, including [Bmim][NTf2], [Bim][NTf2], [HOOC(CH2) 3mim][NTf2], were designed and synthesized with various hydrogen bond donating abilities and characterized based on their thermodynamic dissociation constants (pKa). The results showed that protic ionic liquid (PIL) [Bim][NTf2] with a moderate pKa value had the highest NH3 absorption capacity (up to 2.69 mol NH3 per mol IL, 313 K, 100 kPa). Experimental characterization and theoretical calcu-lations verified that such extremely high NH3 absorption capacity for [Bim][NTf2] resulted from the inter-actions between H-3 on the imidazole ring and the NH3 molecule and NH3 molecules sintering themselves. Furthermore, stable absorption performance was recorded for [Bim][NTf2] over four cycles, implying potential applications in the industry for NH3 recycling.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1039/c6gc03026b
收录类别SCI
语种英语
关键词[WOS]CO2 CAPTURE ; VISCOSITY ; SPECTROSCOPY ; ENVIRONMENT ; SIMULATION ; MIXTURES ; SOLVENTS ; ANION
WOS研究方向Chemistry
WOS类目Chemistry, Multidisciplinary
项目资助者National Natural Science Fund for Distinguished Young Scholars(21425625) ; National Natural Science Foundation of China(51574215 ; Corporation Program ; State Key Laboratory of Organic-Inorganic Composites ; Beijing University of Chemical Technology(oic-201601005) ; 21506219)
WOS记录号WOS:000395866600009
引用统计
被引频次:15[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21995
专题多相复杂系统国家重点实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, Key Lab Green Proc & Engn,State Key Lab Multiphas, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Coll Chem & Engn, Beijing 100049, Peoples R China
3.Beijing Univ Chem Technol, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China
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GB/T 7714
Shang, Dawei,Zhang, Xiangping,Zeng, Shaojuan,et al. Protic ionic liquid [Bim][NTf2] with strong hydrogen bond donating ability for highly efficient ammonia absorption[J]. GREEN CHEMISTRY,2017,19(4):937-945.
APA Shang, Dawei.,Zhang, Xiangping.,Zeng, Shaojuan.,Jiang, Kun.,Gao, Hongshuai.,...&Zhang, Suojiang.(2017).Protic ionic liquid [Bim][NTf2] with strong hydrogen bond donating ability for highly efficient ammonia absorption.GREEN CHEMISTRY,19(4),937-945.
MLA Shang, Dawei,et al."Protic ionic liquid [Bim][NTf2] with strong hydrogen bond donating ability for highly efficient ammonia absorption".GREEN CHEMISTRY 19.4(2017):937-945.
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