Transparent aerogel-like diamond nanofilms from glassy carbon by high pressure and high temperature

被引：8

作者：

Dong, Jiajun ^{[1
]}

Dai, Xiao ^{[2
]}

Zhu, Luyao ^{[1
]}

Wang, Yan ^{[1
]}

Ma, Hanming ^{[1
]}

Yao, Mingguang ^{[1
]}

Zou, Guifu ^{[2
]}

Liu, Ran ^{[1
]}

Liu, Bingbing ^{[1
]}

机构：

[1] Jilin Univ, Coll Phys, State Key Lab Superhard Mat, 2699 Qianjin St, Changchun 130012, Jilin, Peoples R China

[2] Soochow Univ, Collaborat Innovat Ctr Suzhou Nano Sci & Technol, Coll Phys Optoelect & Energy, Suzhou 215006, Peoples R China

来源：

基金：

中国国家自然科学基金;

关键词：

Aerogel; Aerogel-like diamond nanofilm; Glassy carbon; High pressure and high temperature; SOL-GEL SYNTHESIS; NANOCRYSTALLINE DIAMOND; GRAPHENE AEROGEL; FILMS; GRAPHITE;

D O I：

10.1016/j.diamond.2019.04.017

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Aerogel films have been widely used in various fields due to their fantastic properties. Diamond aerogel film is expected to possess the advantages of both film materials and aerogel like materials, but still has not been realized up to now. Here, we provide a feasible way to prepare freestanding, transparent aerogel-like diamond nanofilm (ADF) by treating glassy carbon nanofilm (GCF) at high pressure and high temperature (HPHT). The ADF is constructed by interconnected ultra-small diamond nanograins and possess a porous aerogel-like microstructure, while inherits a film morphology of the parent glassy carbon. The growth of ADF has been discussed in the framework of a melting and diffusion process, in which the low density and low thickness of GCF precursor favor the aerogel formation under HPHT. Further insight into the formation of such unique ADFs has been presented. The aerogel-like diamond nanofilm adds a new member into diamond film family and may expand the applications of this type of porous nanofilm.

引用

页码：90 / 96

页数：7

共 46 条

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