Precise control of the interlayer spacing between graphene sheets by hydrated cations
文献信息
Liang Chen, Guosheng Shi, Haiping Fang
Recently, we have demonstrated that highly efficient ion rejection by graphene oxide membranes can be facilely achieved using hydrated cations to control the interlayer spacing in GO membranes. By using density functional theory calculations, we have shown that different hydrated cations can also precisely control the interlayer spacings between graphene sheets, which are smaller than graphene oxide sheets; this indicates ion sieving. The interlayer distances are 9.35, 8.96 and 8.82 Å for hydrated Li+, Na+ and K+, respectively. Since the radii of the hydrated Na+ and Li+ ions are larger than that of hydrated K+, graphene membranes controlled by the hydrated K+ ion can exclude K+ and the other two cations with larger hydrated volumes. Further analysis of charge transfer and orbit analysis showed that this type of control by the hydrated cations is attributed to the strong hydrated cation–π interactions; moreover, when soaked in a salt solution, graphene membranes adsorb hydrated Na+ and Li+ and form intercalation compounds. However, it is hard to find K-doped intercalation compounds in the inner part of graphene.
相关文献
Synthesis of ε-N-propionyl-, ε-N-butyryl-, and ε-N-crotonyl-lysine containing histone H3 using the pyrrolysine system
Michael J. Gattner, Milan Vrabel, Thomas Carell
DOI: 10.1039/C2CC37836A
Correction: Two-dimensional conjugated metal–organic frameworks (2D c-MOFs): chemistry and function for MOFtronics
Mingchao Wang, Renhao Dong, Xinliang Feng
DOI: 10.1039/D2CS90005J
Fabrication and characterization of laser-heated, multiplexed electrospray emitter
Emily R. Groper, Jack A. Barnes, Rory McEwen, Younès Messaddeq, Richard D. Oleschuk
DOI: 10.1039/D1AN00264C
A novel hydrate of α-cyclodextrin crystallised under high-pressure conditions
Rubén Granero-García, Fernando J. Lahoz, Sofiane Saouane, Francesca P. A. Fabbiani
DOI: 10.1039/C2CE26362A
Droplet-based blood group antibody screening with laser incubation
Clare A. Manderson, Heather McLiesh, Rico F. Tabor, Gil Garnier
DOI: 10.1039/D0AN01993C
Graphene oxide–polybenzimidazolium nanocomposite anion exchange membranes for electrodialysis
Joseph Baugh, Adetunji Alabi, Ahmed AlHajaj, Linda Zou, Robert A. W. Dryfe
DOI: 10.1039/C8TA09160A
A ratiometric fluorescence strategy based on polyethyleneimine surface-modified carbon dots and Eosin Y for the ultrasensitive determination of protamine and trypsin
Wenying Sun, Feng Zhang, Mengke Wang, Nan Wang, Guannan Wang, Xingguang Su
DOI: 10.1039/D1AN02138A
Grafting of Gd-DTPA onto MOF-808 to enhance MRI performance for guiding photothermal therapy
Mingjie Jia, Xinyu Yang, Yanan Chen, Meie He, Weixiu Zhou, Jiaomin Lin, Lu An, Shiping Yang
DOI: 10.1039/D1TB01596F
Enhanced thermoelectric properties of Sr5In2Sb6via Zn-doping
Sevan Chanakian, Umut Aydemir, Zachary M. Gibbs, Gregory Pomrehn, Jean-Pierre Fleurial, Sabah Bux, G. Jeffrey Snyder
DOI: 10.1039/C5TA01967B
Development and evaluation of new cyclooctynes for cell surface glycan imaging in cancer cells
André A. Neves, Shaun Stairs, Heather Ireland-Zecchini, Kevin M. Brindle, Finian J. Leeper
DOI: 10.1039/C0SC00631A
您可能还喜欢
什么是2-Bromo-1-(pyrimidin-2-yl)ethanone hydrobromide(CAS号:1588441-02-4)?
2-Bromo-1-(pyrimidin-2-yl)ethanone hydrobromide是一种有机化合物,分子式为C6H5Br2N2O2。它是一种溴代化合...
在合成中是否有1-正-丁基-3-甲基咪唑鎓三氟甲烷磺酸盐(CAS号:174899-66-2)的替代品?
在合成中,可以考虑使用1-正-丁基-3-甲基咪唑鎓溴酸盐或1-正-丁基-3-甲基咪唑鎓氯酸盐作为替代品。这些化合物在性能上与1-正-丁基-3-甲基咪唑鎓三氟甲烷...
2-methyl-5-thiophen-2-ylfuran-3-carboxylic acid(CAS号:651005-90-2)的市场或研究趋势如何?
目前,2-methyl-5-thiophen-2-ylfuran-3-carboxylic acid的研究主要集中在药物化学和新型材料领域。随着生物医药和有机合...
格列吡嗪杂质H(CAS号:13554-93-3)的主要用途是什么?
格列吡嗪杂质H主要作为药物中间体或副产物存在,并无特定的工业应用。在药物生产中,它可能需要被处理掉以保证最终药物的质量。
如何储存(9ci)-4-甲氧基-1H-苯并咪唑-2-乙腈(CAS号:317817-41-7)?
(9ci)-4-甲氧基-1H-苯并咪唑-2-乙腈应储存在阴凉、干燥、通风良好的地方,避免阳光直射。使用密封的玻璃或塑料容器储存,并确保容器的密封性良好,以防止挥...
4,5,9,10-四氢苯芘(CAS号:781-17-9)应用于哪些行业?
4,5,9,10-四氢苯芘在医药行业用于作为某些药物的中间体,在聚合物行业用作添加剂提升材料的热稳定性,在传感器领域作为传感器的敏感材料,在半导体行业中用作掺杂...
处理叶酸-D4(CAS号:171777-72-3)时应注意哪些实验室安全事项?
处理叶酸-D4时应佩戴个人防护装备(PPE),如手套和实验服。操作应在通风橱内进行,以避免吸入蒸汽或粉尘。如果不慎泄露,应立即用大量清水冲洗,并通知安全人员。参...
如何处理含有6-溴-2-(三氟乙酰基)-1,2,3,4-四氢异喹啉(CAS号:252331-63-8)的废料?
含有该化合物的废料应收集到专用的容器中,并进行密封以防止挥发和泄漏。在处理前,需进行危险性评估,以确定是否需要进行化学处理。最终处置需遵循当地的危险废物管理规定...
4,5-二氟-2-甲氧基苯甲醛(CAS号:145742-34-3)的主要用途是什么?
4,5-二氟-2-甲氧基苯甲醛主要用作有机合成中的中间体,特别是在制药和农药领域。它可以作为合成其他有机化合物的原料。
5-溴-6-三氟甲基吲哚(CAS号:1198475-24-9)安全吗?
5-溴-6-三氟甲基吲哚作为一种化学试剂,具有一定的毒性,需要在通风橱中操作,并采取适当的安全措施以避免吸入、皮肤接触和眼睛刺激。应避免与皮肤和眼睛直接接触,并...
来源期刊
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.











![2-(Methylsulfonyl)-2,4,5,6-tetrahydropyrrolo[3,4-c]pyrazole structure 2-(Methylsulfonyl)-2,4,5,6-tetrahydropyrrolo[3,4-c]pyrazole structure](https://cnstatic.chemtradehub.com/structs/122/1226781-80-1-09d5.webp)
![4-{1-[4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]cyclopropyl}morpholine structure 4-{1-[4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]cyclopropyl}morpholine structure](https://cnstatic.chemtradehub.com/structs/120/1206594-08-2-7afb.webp)
![4-[(1-Methyl-1H-pyrrol-2-yl)methylene]-1,3(2H,4H)-isoquinolinedione structure 4-[(1-Methyl-1H-pyrrol-2-yl)methylene]-1,3(2H,4H)-isoquinolinedione structure](https://cnstatic.chemtradehub.com/structs/110/1104546-89-5-a600.webp)
