TY - JOUR
T1 - Structural investigations of α-MnS nanocrystals and thin films synthesised from manganese(II) xanthates by hot injection, solvent-less thermolysis and doctor blade routes.
AU - Alanazi, Abdulaziz
AU - Mcnaughter, Paul
AU - Alam, Firoz
AU - Vitorica-Yrezabal, Inigo
AU - Whitehead, George
AU - Tuna, Floriana
AU - O'Brien, Paul
AU - Collison, David
AU - Lewis, David
PY - 2021/10/26
Y1 - 2021/10/26
N2 - 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).
AB - 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).
U2 - 10.1021/acsomega.1c02907
DO - 10.1021/acsomega.1c02907
M3 - Article
SN - 2470-1343
VL - 6
SP - 27716
EP - 27725
JO - ACS Omega
JF - ACS Omega
IS - 42
ER -