Next Article in Journal
Rietveld Quantitative Phase Analysis of Oil Well Cement: In Situ Hydration Study at 150 Bars and 150 °C
Previous Article in Journal
Phase Change Material Used for Masonry Joints to Reduce the Thermal Bridge Effect
Open AccessFeature PaperReview

A Review of The Lesser-Studied Microemulsion-Based Synthesis Methodologies Used for Preparing Nanoparticle Systems of The Noble Metals, Os, Re, Ir and Rh

School of Science, University of Waikato, Hamilton 3240, New Zealand
*
Author to whom correspondence should be addressed.
Materials 2019, 12(12), 1896; https://doi.org/10.3390/ma12121896
Received: 8 May 2019 / Revised: 10 June 2019 / Accepted: 10 June 2019 / Published: 12 June 2019
This review focuses on the recent advances in the lesser-studied microemulsion synthesis methodologies of the following noble metal colloid systems (i.e., Os, Re, Ir, and Rh) using either a normal or reverse micelle templating system. The aim is to demonstrate the utility and potential of using this microemulsion-based approach to synthesize these noble metal nanoparticle systems. Firstly, some fundamentals and important factors of the microemulsion synthesis methodology are introduced. Afterward, a review of the investigations on the microemulsion syntheses of Os, Re, Ir, and Rh nanoparticle (NP) systems (in all forms, viz., metallic, oxide, mixed-metal, and discrete molecular complexes) is presented for work published in the last ten years. The chosen noble metals are traditionally very reactive in nanosized dimensions and have a strong tendency to aggregate when prepared via other methods. Also, the particle size and particle size distribution of these colloids can have a significant impact on their catalytic performance. It is shown that the microemulsion approach has the capability to better stabilize these metal colloids and can control the size of the synthesized NPs. This generally leads to smaller particles and higher catalytic activity when they are tested in applications. View Full-Text
Keywords: microemulsions; micelles; synthesis; noble metals; nanoparticles; osmium; rhenium; iridium; rhodium microemulsions; micelles; synthesis; noble metals; nanoparticles; osmium; rhenium; iridium; rhodium
Show Figures

Graphical abstract

MDPI and ACS Style

Soleimani Zohr Shiri, M.; Henderson, W.; Mucalo, M.R. A Review of The Lesser-Studied Microemulsion-Based Synthesis Methodologies Used for Preparing Nanoparticle Systems of The Noble Metals, Os, Re, Ir and Rh. Materials 2019, 12, 1896.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop