Controlled self-decoration of Mo6S y I z (8.2 ≤ y + z ≤ 10) nanowires and their transformation to MoS2 nanotubes with gold nanoparticles
Source abstract
Abstract
Nanowires and nanotubes decorated with gold nanoparticles are known for their excellent sensing and catalytic properties. However, the decoration of transition–metal dichalcogenide nanotubes can be very complex. Here we report on a simple procedure that enables efficient production and purification of thin bundles of Mo6SyIz (8.2 ≤ y + z ≤ 10) nanowires decorated with gold nanoparticles and their transformation to gold-decorated MoS2 nanotubes. We isolated several hundred milligrams of nanowire bundles that were several microns long with average diameters of around 40 nm, and formed a stable dispersion in water without added surfactants. Gold nanoparticles were directly deposited on the nanowire bundles either in a solution or on a substrate at room temperature in a single-step reaction without any additional reducing reagents. The number of gold nanoparticles on a nanowire bundle is controlled by changing the concentration of chloroauric acid HAuCl4·3H2O in the solution. Since the nanowires can serve as precursor crystals for fabrication of nanotubes, we were able to transform gold-decorated nanowires and produce gold-decorated MoS2 nanotubes.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: 2D Materials and Applications · Quantum Dots Synthesis And Properties · MXene and MAX Phase Materials
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References (30)
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