About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
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Symposium
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Characterization of Minerals, Metals and Materials
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Presentation Title |
Unconventional Sodium Chloride in Graphene Liquid Cell |
Author(s) |
Jaeyoung Hong, Jee-Hwan Bae, Hee-Young Park, Sehyun Lee, Juyoung Kim, Sung Jong Yoo, Dongwon Chun |
On-Site Speaker (Planned) |
Dongwon Chun |
Abstract Scope |
Unconventional crystals can be produced at high pressure as it affects stability of crystals. Novel sodium chloride (NaCl) crystals with several compositions were reported recently.1 We observed NaCl crystals formed inside graphene liquid cell (GLC) which was utilized to get high resolution image in liquid. It's well-known that an interplanar distance of (200) plane of conventional face-centered cubic (FCC) NaCl is 2.83Ĺ. Interestingly, d-spacing of NaCl in GLC was less than 2.83Ĺ, which is similar to that of Na2Cl produced on graphene surface due to strong interaction between graphene and sodium cations in liquid.2 In addition, diffraction pattern of the observed crystal is slightly different from FCC, indicating high pressure condition in GLC originated from van der waals force generated between graphene layers.3
References
1. Weiwei Zhang et al., Science 342 (2013)
2. Guosheng Shi et al., Nat. Chem. 10 (2018)
3. G. Algara-Siller et al., Nature 519 (2015) |
Proceedings Inclusion? |
Planned: |