Mn1-xFexS,x\simeq 0.05, an example of an anti-wurtzite structure

Eriksson, Lars; Kalinowski, M.

doi:10.1107/s1600536801016051

Cited by 4 publications

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“…MnS minerals with β and γ structures have been much more recently reported upon: rambergite (γ-MnS) has been discovered in 1996 in Sweden [21] whereas browneite (β-MnS) was found in a meteorite collected in Poland in 2012 [22]. We limit our review to homogeneous or heterogeneous nanostructures that comprise pure MnS with at least one dimension smaller than 100 nm (some MnS sub-microcrystals are included when of particular interest).…”

Section: Introductionmentioning

confidence: 99%

Manganese Sulfide (MnS) Nanocrystals: Synthesis, Properties, and Applications

Ferretti¹,

Mondini²,

Ponti³

2016

Advances in Colloid Science

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Manganese(II) sulfide (MnS) is an interesting material for both fundamental and applicative research, especially when its bulk properties are modulated by reducing the size into the nanometric region (< 100 nm). Due to its polymorphism, MnS is an attractive material to develop synthetic strategies for polymorphism control. We have reviewed the literature concerning MnS nanosystems having at least one dimension smaller than 100 nm. Successful synthetic techniques for the preparation of zero-and one-dimensional MnS nanosystems (either homogeneous and heterogeneous) with size, shape, and polymorphism control are presented with emphasis on solvothermal techniques and on studies devoted to understanding the growth mechanism and the polymorphism. Properties and applications are collected in three broad areas corresponding to nanosize MnS used as an optical, electric, and magnetic material. MnS has attracting properties such as its large bandgap, which makes it promising for emission in the ultraviolet region. The magnetic properties have also arisen attention since MnS is antiferromagnetic at low temperature and (super)paramagnetic at room temperature. Finally, the layered structure of the hexagonal polymorph is responsible for the good performance of nanosize MnS as a lithium-ion battery electrode or supercapacitor material since the insertion/exchange of small ions is easy.

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Section: Introductionmentioning

confidence: 99%

Manganese Sulfide (MnS) Nanocrystals: Synthesis, Properties, and Applications

Ferretti¹,

Mondini²,

Ponti³

2016

Advances in Colloid Science

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“…60°20' N, long. 16°13.5' E), where various exotic skarn mineral assemblages have been noted to exist (Eriksson and Kalinowski, 2001;Holtstam, 2002;Kolitsch and Holtstam, 2002;Nysten, 2003).…”

Section: Introductionmentioning

confidence: 99%

“…The sample containing the new mineral presented here was collected in situ at the 900 m level of the Garpenberg Norra mine (60°20′N, 16°13.5′E), where various exotic skarn mineral assemblages have been noted to exist (Eriksson and Kalinowski, 2001; Holtstam et al , 2001; Holtstam, 2002; Kolitsch and Holtstam, 2002; Nysten, 2003). Garpenbergite was first spotted by one of the authors (K.G.)…”

Section: Introductionmentioning

confidence: 99%

Garpenbergite, Mn₆□As⁵⁺Sb⁵⁺O₁₀(OH)₂, a new mineral related to manganostibite, from the Garpenberg Zn–Pb–Ag deposit, Sweden

Holtstam

Bindi

Förster

et al. 2022

MinMag

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Garpenbergite is a new mineral (IMA No. 2020-099) from the Garpenberg Norra mine, Hedemora, Dalarna, Sweden. It occurs with carlfrancisite and minor stibarsen, paradocrasite and filipstadite, in a fractured skarn matrix of granular jacobsite, alleghanyite, kutnohorite and dolomite. Crystals are short-prismatic, up to 1.5 mm in length. They have a blackish to greyish brown colour, and are lustrous semi-opaque, with brown streak. Garpenbergite is brittle, with an uneven to subconchoidal fracture. Cleavage is distinct on {010}. H ~ 5 (Mohs) and VHN 100 = 650(40). D calc = 4.47(1) g•cm 3 , overall n calc = 1.85. Maximum specular reflectance values (%) obtained are 9.2 (470 nm), 9.1 (546 nm), 9.0 (589 nm) and 8.9 (650 nm).The empirical chemical formula of garpenbergite, based on EPMA data, is (Mn 2+ 3.97 Mg 1.48 Mn 3+ 0.26 Zn 0.29 ) Σ6 (As 0.89 Fe 3+ 0.04 Mn 3+ 0.06 Si 0.01 ) Σ1 (Sb 0.98 Fe 0.02 ) Σ1 O 10 2 [(OH) 1.99 Cl 0.01 ] Σ2 . The five strongest Bragg peaks in the X-ray powder diffraction pattern (d[Å], I[%], hkl) are (3.05, 30, 002), (2.665, 100, 161), (2.616, 40, 301), (2.586, 25, 251) and (1.545, 45, 462). The orthorhombic unit-cell dimensions (in Å) are a = 8.6790( 9), b = 18.9057( 19) and c = 6.1066(6) with V = 1001.99(18) Å 3 for Z = 4. The crystal structure was refined from single-crystal Xray diffraction data in the space-group Ibmm to R1 = 3.7% for 957 reflections. Garpenbergite, ideally Mn 6 As 5+ Sb 5+ O 10 (OH) 2 , is isostructural with manganostibite, Mn 7 AsSbO 12 , but possesses a cation vacancy (□) at an octahedrally coordinated structural site; the two minerals are thus related by the exchange Mn 2+ + 2O 2 → □ + 2(OH)  . The presence of hydroxyl groups is supported by vibration bands at 3647 and 3622 cm 1 in the Raman spectrum of garpenbergite.

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“…More recently, naturally occurring minerals with β- and γ-MnS structure have been described. Rambergite (γ-MnS) was discovered in 1996 in Sweden [ 3 ]. In 2012, extraterrestrial browneite (β-MnS) was found in a meteorite collected in Poland [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

Surfactant-controlled composition and crystal structure of manganese(II) sulfide nanocrystals prepared by solvothermal synthesis

Capetti

Ferretti

Santo³

et al. 2015

Beilstein J. Nanotechnol.

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SummaryWe investigated how the outcome of the solvothermal synthesis of manganese(II) sulfide (MnS) nanocrystals (NCs) is affected by the type and amount of long chain surfactant present in the reaction mixture. Prompted by a previous observation that a larger than stoichiometric amount of sulfur is required [Puglisi, A.; Mondini, S.; Cenedese, S.; Ferretti, A. M.; Santo, N.; Ponti A. Chem. Mater. 2010, 22, 2804–2813], we carried out a wide set of reactions using Mn(II) carboxylates and Mn2(CO)10 as precursors with varying amounts of sulfur and carboxylic acid. MnS NCs were obtained provided that the S/Mn ratio was larger than the L/Mn ratio, otherwise MnO NCs were produced. Since MnS can crystallize in three distinct phases (rock salt α-MnS, zincblende β-MnS, and wurtzite γ-MnS), we also investigated whether the surfactant affected the NC polymorphism. We found that MnS polymorphism can be controlled by appropriate selection of the surfactant. γ-MnS nanocrystals formed when a 1:2 mixture of long chain carboxylic acid and amine was used, irrespective of the presence of carboxylic acid as a free surfactant or ligand in the metal precursor. When we used a single surfactant (carboxylic acid, alcohol, thiol, amine), α-MnS nanocrystals were obtained. The peculiar role of the amine seems to be related to its basicity. The nanocrystals were characterized by TEM and electron diffraction; ATR-FTIR spectroscopy provided information about the surfactants adsorbed on the NCs.

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Mn_1-xFe_xS,x\simeq 0.05, an example of an anti-wurtzite structure

Cited by 4 publications

References 2 publications

Manganese Sulfide (MnS) Nanocrystals: Synthesis, Properties, and Applications

Manganese Sulfide (MnS) Nanocrystals: Synthesis, Properties, and Applications

Garpenbergite, Mn₆□As⁵⁺Sb⁵⁺O₁₀(OH)₂, a new mineral related to manganostibite, from the Garpenberg Zn–Pb–Ag deposit, Sweden

Surfactant-controlled composition and crystal structure of manganese(II) sulfide nanocrystals prepared by solvothermal synthesis

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Mn1-xFexS,x\simeq 0.05, an example of an anti-wurtzite structure

Cited by 4 publications

References 2 publications

Manganese Sulfide (MnS) Nanocrystals: Synthesis, Properties, and Applications

Manganese Sulfide (MnS) Nanocrystals: Synthesis, Properties, and Applications

Garpenbergite, Mn6□As5+Sb5+O10(OH)2, a new mineral related to manganostibite, from the Garpenberg Zn–Pb–Ag deposit, Sweden

Surfactant-controlled composition and crystal structure of manganese(II) sulfide nanocrystals prepared by solvothermal synthesis

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Mn_1-xFe_xS,x\simeq 0.05, an example of an anti-wurtzite structure

Garpenbergite, Mn₆□As⁵⁺Sb⁵⁺O₁₀(OH)₂, a new mineral related to manganostibite, from the Garpenberg Zn–Pb–Ag deposit, Sweden