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A one-pot-one-reactant synthesis of platinum compounds at the nanoscale

Stoppiello, Craig T.; Biskupek, Johannes; Li, Z. Y.; Rance, Graham A.; Botos, Akos; Fogarty, Richard M.; Bourne, Richard A.; Yuan, J.; Lovelock, Kevin; Thompson, P.; Fay, Mike W.; Kaiser, Ute; Chamberlain, Thomas W.; Khlobystov, Andrei N.

Authors

Craig T. Stoppiello

Johannes Biskupek

Z. Y. Li

Akos Botos

Richard M. Fogarty

Richard A. Bourne

J. Yuan

Kevin Lovelock

P. Thompson

Ute Kaiser

Thomas W. Chamberlain



Abstract

The preparation of inorganic nanomaterials with a desired structure and specific properties requires the ability to strictly control their size, shape and composition. A series of chemical reactions with platinum compounds carried out within the 1.5 nm wide channel of single-walled carbon nanotubes (SWNTs) have demonstrated the ability of SWNTs to act as both a very effective reaction vessel and a template for the formation of nanocrystals of platinum di-iodide and platinum di-sulphide, materials that are difficult to synthesise in the form of nanoparticles by traditional synthetic methods. The stepwise synthesis inside nanotubes has enabled the formation of Pt compounds to be monitored at each step of the reaction by aberration-corrected high resolution transmission electron microscopy (AC-HRTEM), verifying the atomic structures of the products, and by an innovative combination of fluorescence-detected X-ray absorption spectroscopy (FD-XAS) and Raman spectroscopy, monitoring the oxidation states of the platinum guest-compounds within the nanotube and the vibrational properties of the host-SWNT, respectively. This coupling of complementary spectroscopies reveals that electron transfer between the guest-compound and the host-SWNT can occur in either direction depending on the composition and structure of the guest. A new approach for nanoscale synthesis in nanotubes developed in this study utilises the versatile coordination chemistry of Pt which has enabled the insertion of the required chemical elements (e.g. metal and halogens or chalcogens) into the nanoreactor in the correct proportions for the controlled formation of PtI2 and PtS2 with the correct stoichiometry.

Citation

Stoppiello, C. T., Biskupek, J., Li, Z. Y., Rance, G. A., Botos, A., Fogarty, R. M., …Khlobystov, A. N. (2017). A one-pot-one-reactant synthesis of platinum compounds at the nanoscale. Nanoscale, 9(38), https://doi.org/10.1039/C7NR05976K

Journal Article Type Article
Acceptance Date Sep 10, 2017
Online Publication Date Sep 11, 2017
Publication Date Oct 14, 2017
Deposit Date Nov 27, 2017
Publicly Available Date Sep 12, 2018
Journal Nanoscale
Print ISSN 2040-3364
Electronic ISSN 2040-3372
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Volume 9
Issue 38
DOI https://doi.org/10.1039/C7NR05976K
Public URL https://nottingham-repository.worktribe.com/output/887857
Publisher URL http://pubs.rsc.org/en/content/articlelanding/2017/nr/c7nr05976k#!divAbstract

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