Porous single-crystal diamond

被引：18
|
作者：
Wang, Junpu [1 ]
Su, Yuzhu [1 ]
Tian, Yi [1 ]
Xiang, Xiaojun [1 ]
Zhang, Jiawei [1 ]
Li, Shuaiqi [1 ]
He, Duanwei [1 ,2 ]
机构：
[1] Sichuan Univ, Inst Atom & Mol Phys, Chengdu 610065, Peoples R China
[2] Sichuan Univ, Minist Educ, Key Lab High Energy Dens Phys & Technol, Chengdu 610065, Peoples R China
来源：
CARBON | 2021年 / 183卷
基金：
国家重点研发计划;
关键词：
Porous diamond; Porous materials; High-pressure high-temperature; Crystal growth; Single particle; GRAIN-GROWTH; SURFACE; CRYSTALLIZATION; MEMBRANES; KINETICS;
D O I：
10.1016/j.carbon.2021.06.083
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Porous diamonds have unique application prospects due to their flexible surface functionalities, high surface-area-to-volume ratio and high self-sharpening ability. Porous diamonds are usually prepared through microwave plasma chemical vapor deposition (MPCVD) techniques or through etching by transition metals, which are expensive and inefficient. Here, we report a simple and efficient method to grow large millimetre-scale porous single-crystal diamonds using high-pressure and high-temperature (HP-HT) techniques. The porous diamond crystal growth is driven by minimizing the surface energy through the attachment of small crystals to a large seed crystal surface in a metal solvent. Industrial-scale production of single-crystal porous diamonds is possible with this discovery. (C) 2021 Elsevier Ltd. All rights reserved.
引用
收藏
页码：259 / 266
页数：8
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