Preparation of boron nanoparticles by pulsed discharge of compacted powder. (16th January 2020)

• Record Type: Journal Article
• Authors: Hieu, Nguyen Duy; Chu, Ngo Minh; Tokoi, Yoshinori; Do, Thi-Mai-Dung; Nakayama, Tadachika; Suematsu, Hisayuki; Niihara, Koichi
• Is Part Of: Japanese journal of applied physics. Volume 59:Number SC(2020)
• Publication Date: 2020-01-16
• Subjects: Physics -- Periodicals; 621.05
• DOI: 10.7567/1347-4065/ab5911
• Languages: English
• ISSNs: 0021-4922

Abstract

Abstract: In this study, a low-cost and simple method for the preparation of B nanoparticles is described. Based on the pulsed wire discharge method, a large pulsed current was discharged through 10 mg of B micro-sized powder to form B nanoparticles in Ar gas. A small amount of Cu and C impurities was detected due to the material of the electrodes and the heat-shrinkable tube. The prepared B nanoparticles were of a crystalline phase and their sizes were estimated to be less than 100 nm. To the authors' knowledge, this is the first realization of spherical crystalline B nanoparticles.