Title: Fabrication of single-phase tungsten carbide laminae from multi-walled carbon nanotubes using high direct current pulse

Authors: Woo Sik Kim; Hwan Soo Dow; Weon Ho Shin

Addresses: Ceramic Fiber & Composite Center, Convergence R&D Division, Korea Institute of Ceramic Engineering & Technology, Jinju 52851, South Korea ' Ceramic Fiber & Composite Center, Convergence R&D Division, Korea Institute of Ceramic Engineering & Technology, Jinju 52851, South Korea ' Energy Materials Center, Energy & Environment Division, Korea Institute of Ceramic Engineering & Technology, Jinju 52851, South Korea

Abstract: Single-phase tungsten carbide (WC) laminae were fabricated by treating multi-walled carbon nanotubes (MWCNTs) with tungsten trioxide using high direct current pulses. We confirmed that single-phase WC laminae are transformed from unzipped MWCNTs and they have a graphene layer structure. Therefore, their thickness and width are almost identical with those of transformed graphene layers from MWCNTs. We investigated the structure of as-synthesised WC laminae by using a variety of characterisation techniques, such as field emission scanning electron microscopy, high-resolution transmission electron microscopy, X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS).

Keywords: graphene; tungsten carbide; laminae.

DOI: 10.1504/IJNT.2018.096344

International Journal of Nanotechnology, 2018 Vol.15 No.6/7, pp.537 - 544

Received: 08 May 2021
Accepted: 12 May 2021

Published online: 21 Nov 2018 *

Full-text access for editors Access for subscribers Purchase this article Comment on this article