Structural investigations of α-MnS nanocrystals and thin films synthesised from manganese(II) xanthates by hot injection, solvent-less thermolysis and doctor blade routes.

Abdulaziz Alanazi, Paul Mcnaughter, Firoz Alam, Inigo Vitorica-Yrezabal, George Whitehead, Floriana Tuna, Paul O'Brien, David Collison, David Lewis

Research output: Contribution to journalArticlepeer-review

Abstract

Manganese (II) xanthate complexes of the form [Mn(S2COR)2(TMEDA)], where TMEDA = tetramethylethylenediamine and R = methyl (1), ethyl (2), n-propyl (3), n-butyl (4), n-pentyl (5), n-hexyl (6) and n-octyl (7), have been synthesised and structures elucidated using single crystal X-ray diffraction. Complexes 1 to 7 were used as molecular precursors to synthesise manganese sulfide (MnS). Olelyamine (OLA) capped nanocrystals have been produced via hot injection, whilst the doctor blading followed by thermolysis yielded thick films. Free-standing polycrystalline powders of MnS are produced by direct thermolysis of precursor powders. All thermolysis techniques produced cubic MnS as confirmed by powder X-ray diffraction, scanning electron microscopy (SEM), energy dispersive X-ray (EDX) spectroscopy and Raman spectroscopy. Magnetic measurements reveal that the α-MnS nanocrystals exhibit ferromagnetic behaviour with a large coercive field strength (e.g., 0.723 kOe for 6.8 nm nanocrystals).
Original languageEnglish
Pages (from-to)27716–27725
JournalACS Omega
Volume6
Issue number42
Early online date11 Oct 2021
DOIs
Publication statusPublished - 26 Oct 2021

Fingerprint

Dive into the research topics of 'Structural investigations of α-MnS nanocrystals and thin films synthesised from manganese(II) xanthates by hot injection, solvent-less thermolysis and doctor blade routes.'. Together they form a unique fingerprint.

Cite this