Synthesis and Characterization of Novel Hybrids of Tris[3-(trimethoxysilyl)propyl] Isocyanurate (TTPI) Capped Palladium Nanoparticles and Single-Walled Carbon Nanotubes

Abstract

The conjugation of nanoparticles to carbon nanotubes (CNTs) involves various steps including premodification of the nanotubes, which is known to be a very tedious process and sometimes leads to a mixture of products. In this regard, a direct route to generate such conjugates is a worthwhile endeavor. In this paper, we report a novel, mild, one-pot, approach to a controlled and direct coordination of Pd nanoparticles (Pd NPs) onto the surface of single walled carbon nanotubes (SWNTs), without any pre-modification of the SWNTs surface. We also present detailed characterization of the SWNT-Pd NP hybrid systems using High Resolution Transmission Electron Microscopy (HRTEM), Energy Dispersive X-ray Spectroscopy (EDS), Mid-Infrared Spectroscopy (Mid-IR) and UV-Visible Spectroscopy (UV-vis) along with the stability studies of the nanoconjugates.

Synthesis of Single-Walled Carbon Nanotube−Nanoparticle Hybrid Structures

“…SWNT-Palladium nanoparticle hybrids have also showed great potential for catalytic and sensor applications (5,35,37,39). We have recently reported a one-pot synthesis method for the coordination of Pd nanoparticles onto nonfunctionalized SWNTs via tris [3-(trimethoxysilyl)propyl] isocyanurate (TTPI) (5).…”

“…We have recently reported a one-pot synthesis method for the coordination of Pd nanoparticles onto nonfunctionalized SWNTs via tris [3-(trimethoxysilyl)propyl] isocyanurate (TTPI) (5). Figure 8 shows the schematic representation of the synthesis of the SWNT-Pd nanoparticle hybrids.…”

“…Their highly crystalline structure results in improved mechanical properties (3)(4)(5)(6). Due to their remarkable thermal, electrical, mechanical and optical properties, SWNTs have shown enormous potential in applications as varied as sensing, gas storage, composites, catalyst support, molecular electronics, field emission displays, bioanalytical labeling, and drug delivery (7,8).…”

“…Schematic representation of the SWNT-Pd nanoparticle hybrid stabilized by coordination with TTPI as reported by reference(5).…”