科学家合成六边形盐
文章来源:未知 文章作者:enread 发布时间:2020-08-10 13:58 字体: [ ]  进入论坛
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虽然这个新的科技成果可能不会登上你的餐桌,但可能会对很多领域有所帮助,如雷达设备、电动汽车等。科学家已经能合成六边形的盐了,也就是氯化钠(NaCl)。
While it probably won't make it to your dining table, a new scientific achievement might be able to help in everything from radar1 equipment to electric cars: scientists have been able to form salt, aka sodium2 chloride (NaCl), in a hexagonal shape.
 
This is work done at the smallest of scales, with researchers able to get a thin film of hexagonal salt to form on top of a layer of diamond, due to the chemical interaction of both film and diamond substrate – something the team actually predicted would happen in advance through simulations.
 
It's the latest in a series of discoveries where scientists have been able to synthesise 2D materials with unusual crystal structures, and it's partly this self-imposed restriction3 to two dimensions that is enabling new and exotic structures to be formed.
 
"Initially4 we decided5 to perform only a computational study of the formation of new 2D structures on different substrates, driven by the hypothesis that if a substrate interacts strongly with the NaCl thin film, one can expect major changes in the structure of the thin film," says material scientist Kseniya Tikhomirova from the Skolkovo Institute of Science and Technology (Skoltech) in Russia.
 
"Indeed, we obtained very interesting results and predicted the formation of a hexagonal NaCl film on the diamond substrate, and decided to perform experiments. Thanks to our colleagues who performed the experiments, we synthesised this hexagonal NaCl, which proves our theory."
 


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1 radar kTUxx     
n.雷达,无线电探测器
参考例句:
  • They are following the flight of an aircraft by radar.他们正在用雷达追踪一架飞机的飞行。
  • Enemy ships were detected on the radar.敌舰的影像已显现在雷达上。
2 sodium Hrpyc     
n.(化)钠
参考例句:
  • Out over the town the sodium lights were lit.在外面,全城的钠光灯都亮了。
  • Common salt is a compound of sodium and chlorine.食盐是钠和氯的复合物。
3 restriction jW8x0     
n.限制,约束
参考例句:
  • The park is open to the public without restriction.这个公园对公众开放,没有任何限制。
  • The 30 mph speed restriction applies in all built-up areas.每小时限速30英里适用于所有建筑物聚集区。
4 initially 273xZ     
adv.最初,开始
参考例句:
  • The ban was initially opposed by the US.这一禁令首先遭到美国的反对。
  • Feathers initially developed from insect scales.羽毛最初由昆虫的翅瓣演化而来。
5 decided lvqzZd     
adj.决定了的,坚决的;明显的,明确的
参考例句:
  • This gave them a decided advantage over their opponents.这使他们比对手具有明显的优势。
  • There is a decided difference between British and Chinese way of greeting.英国人和中国人打招呼的方式有很明显的区别。
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