Catalytic Etching of Multi‐Walled Carbon Nanotubes Controlled by Oxygen Gas Pressure. Issue 10 (6th April 2018)

• Record Type: Journal Article
• Authors: Yoshida, Kaname; Arai, Shigeo; Matsumoto, Hiroaki; Shirai, Manabu; Tanaka, Nobuo
• Is Part Of: ChemCatChem. Volume 10:Issue 10(2018)
• Page Start: 2205
• Page End: 2209
• Publication Date: 2018-04-06
• Subjects: carbon nanotubes -- catalytic oxidation -- in situ observation -- platinum nanoparticles -- transmission electron microscopy; Catalysis -- Periodicals; 541.39505
• DOI: 10.1002/cctc.201701799
• Languages: English
• ISSNs: 1867-3880

Abstract

Abstract: We examined the catalytic behavior of platinum nanoparticles supported directly on a multi‐walled carbon nanotube with environmental scanning transmission electron microscopy. The catalytic etching behavior of the platinum nanoparticles toward the carbon nanotube was found to depend on the oxygen gas pressure. We supposed that direction of catalytic etching could be involved with amount of adsorbed oxygen onto catalytic nanoparticles. In situ observations give new insight of morphological control of carbon nanotube etched by catalytic nanoparticles. Abstract : On the move : Catalytic etching process of multi‐walled carbon nanotubes was observed in nano‐scale by using an environmental scanning transmission electron microscope (E‐STEM). Etching behavior of platinum nanoparticles varied with pressure of oxygen gas and a reaction temperature.