Two-dimensional Na-Cl crystals of unconventional stoichiometries on graphene surface from dilute solution at ambient conditions
文献类型：期刊论文
| 作者 | Shi, GS; Chen, L; Yang, YZ; Li, DY; Qian, Z; Liang, SS; Yan, L; Li, LH; Wu, MH; Fang, HP |
| 刊名 | NATURE CHEMISTRY
 |
| 出版日期 | 2018 |
| 卷号 | 10期号:7页码:776-779 |
| ISSN号 | 1755-4330 |
| 关键词 | CATION-PI INTERACTION HIGH-PRESSURE AQUEOUS-SOLUTION MEMBRANES TRANSPORT SODIUM GROWTH OXIDE |
| DOI | 10.1038/s41557-018-0061-4 |
| 文献子类 | 期刊论文 |
| 英文摘要 | NaCl in a 1:1 stoichiometry is the only known stable form of the Na-Cl crystal under ambient conditions, and non-1:1 Na-Cl species can only form under extreme conditions, such as high pressures. Here we report the direct observation, under ambient conditions, of Na2Cl and Na3Cl as two-dimensional (2D) Na-Cl crystals, together with regular NaCl, on reduced graphene oxide membranes and on the surfaces of natural graphite powders from salt solutions far below the saturated concentration. Molecular dynamics and density functional theory calculations suggest that this unconventional crystallization process originates from the cation-pi interaction between the ions and the pi-conjugated system in the graphitic surface, which promotes the ion-surface adsorption. The strong Na+-pi interaction and charge transfer lead to stoichiometries with an excess of Na+. With unique electron and spin distributions and bonding, the resulting 2D crystals may have unusual electronic, magnetic, optical and mechanical properties. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31158]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Appl Phys, Div Interfacial Water, Shanghai, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Key Lab Interfacial Phys & Technol, Shanghai, Peoples R China 3.Shanghai Univ, Shanghai Appl Radiat Inst, Shanghai, Peoples R China 4.Zhejiang A&F Univ, Zhejiang Prov Key Lab Chem Utilizat Forestry Biom, Linan, Peoples R China 5.Deakin Univ, IFM, Geelong, Vic, Australia |
| 推荐引用方式 GB/T 7714 | Shi, GS,Chen, L,Yang, YZ,et al. Two-dimensional Na-Cl crystals of unconventional stoichiometries on graphene surface from dilute solution at ambient conditions[J]. NATURE CHEMISTRY,2018,10(7):776-779. |
| APA | Shi, GS.,Chen, L.,Yang, YZ.,Li, DY.,Qian, Z.,...&Fang, HP.(2018).Two-dimensional Na-Cl crystals of unconventional stoichiometries on graphene surface from dilute solution at ambient conditions.NATURE CHEMISTRY,10(7),776-779. |
| MLA | Shi, GS,et al."Two-dimensional Na-Cl crystals of unconventional stoichiometries on graphene surface from dilute solution at ambient conditions".NATURE CHEMISTRY 10.7(2018):776-779. |
入库方式： OAI收割
来源：上海应用物理研究所
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