凯发

Speaker-Jianxun Xu

Jianxun Xu
国家纳米科学中心研究员
  徐建勋,国家纳米科学中心研究员。
  在北京大学化学与分子工程学院攻读博士期间,师从顾镇南教授从事碳纳米材料的制备和表征方面的工作。博士毕业后,前往日本碳纳米管发现者饭岛澄男教授团队以及日本国立物质材料研究所中山知信教授团队从事碳纳米材料在功能化纳米探针、纳米药物等领域的应用研究。
  加入国家纳米科学中心后,主要从事石墨烯和碳纳米锥电子显微镜电子枪相关研究及其产业化相关工作,发展了脉冲电流、微波和电磁感应超快法制备石墨烯的系列新方法,为石墨烯薄膜功能化材料的产业化应用提供了新路径。目前发表SCI论文30余篇,拥有国内、国际专利20余项。
Title:Catalyst-free growth of Meter-sized graphene glass in air by scanning electromagnetic induction quenching method
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Abstract

Abstract

Large-scale, rapid and low-cost preparation of high-quality graphene film and its application at the killer mace level is the key to promote the industrialization of graphene. However, there are still some limitations in the commonly used graphene synthesis methods, such as limited size of graphene films, high cost in common chemical vapor deposition (CVD) and laser direct writing (LDW) technique etc..  
In this paper, a newly low-cost synthesis method without transfer process and catalyst for large-scale graphene films in air is proposed. The temperature of the sample was increased to over 1000 ℃ in a few seconds by scanning electromagnetic induction (SEMI) method, resulting in high-efficiency graphene growth. By using this method, the ultrafast preparation of meter-sized or even unrestricted sized graphene thin films can be realized on glass. So-produced graphene has a high conductance (Rs ~500 Ω·sq-1) and a strong adhesion force with the substrate, affording its excellent electrothermal properties. The graphene glass can work stably up to 1000 ℃ in vacuum.



Fig. 1.So-produced graphene glass by our SEMI method and the photo of the graphene glass self-heated up to 1000 ℃.

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E-mail: meeting@c-gia.org

Abstract: Minyang Lu

Sponsor: Wenyang Yang

Media: Liping Wang

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