A versatile route for the synthesis of Pt-loaded mesoporous CNT heterostructure

Abstract

A simple and versatile route for the synthesis of mesoporous carbon nanotube (CNT)-supported platinum/tungsten carbide (Pt/WC) nanoparticles (NPs) was set up via vapor deposition process. Amorphous CNT (α-CNT) was used to immobilize Pt/WC NPs. Platinum 2,4-pentanedionate, hexacarbonyltungsten and α-CNTs were selected as raw materials. Large density of W₂C/Pt NPs was uniformly decorated on the wall of α-CNTs and W₂C NPs were amorphous structured. The diameters of Pt NPs ranged from 3 to 6 nm, with mean diameter of about 4 nm. This approach provides an efficient method to fabricate carbides or other non-carbides metal NPs on CNT for the in situ synergistic fabrication of heterostructures.

Keywords:

• Vapor deposition
• amorphous carbon nanotube
• platinum/tungsten carbide nanoparticles

Additional information

Funding

This work was supported by the Fundamental Research Funds for the Central Universities (FRF-TP-16-001A3).