Platinum Group Metals and Compounds

Renner, H.; Schlamp, Günther; Kleinwächter, Ingo; Drost, E.; Lüschow, H. M.; Tews, Peter; Panster, Peter; Diehl, Manfred; Lang, Jutta; Kreuzer, Thomas; Knödler, Alfons; Starz, Karl Anton; Dermann, K; Rothaut, J.; Drieselmann, Ralf; Peter, C. John; Schiele, R.

doi:10.1002/14356007.a21_075

Cited by 34 publications

(41 citation statements)

References 108 publications

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“…Platinum group metals and their complexes have been used in many practical applications, because of their excellent catalytic activities. 65 However, electrical properties and other practical features are not well known apart from high electrical conductivity and robust corrosion resistance. Recent studies of Ir and Os oxides have shown that the significant SOC and extended 5d orbitals in the oxide produce outstanding electric and magnetic properties as found in Slater insulators, 19,66 Dirac-Mott insulators, 60,62 and ferroelectric metals.…”

Section: Resultsmentioning

confidence: 99%

Ba2NiOsO6 : A Dirac-Mott insulator with ferromagnetism near 100 K

et al. 2016

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The ferromagnetic semiconductor Ba2NiOsO6 (Tmag ~100 K) was synthesized at 6 GPa and 1500 C. It crystallizes into a double perovskite structure a = 8.0428 plays an essential role in opening the charge gap. The magnetic state was investigated by density functional theory calculations and powder neutron diffraction. The latter revealed a collinear ferromagnetic order in a >21 kOe magnetic field at 5 K. The ferromagnetic gapped state is fundamentally different from that of known dilute magnetic semiconductors such as (Ga,Mn)As and (Cd,Mn)Te (Tmag < 180 K), the spin-gapless semiconductor Mn2CoAl (Tmag ~720 K), and the ferromagnetic insulators EuO (Tmag ~70 K) and Bi3Cr3O11 (Tmag ~220 K). It is also qualitatively different from known ferrimagnetic insulator/semiconductors, which are characterized by an antiparallel spin arrangement. Our finding of the ferromagnetic semiconductivity of Ba2NiOsO6 should increase interest in the platinum group oxides, because this new class of materials should be useful in the development of spintronic, quantum magnetic, and related devices.3

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Section: Resultsmentioning

confidence: 99%

Ba2NiOsO6 : A Dirac-Mott insulator with ferromagnetism near 100 K

et al. 2016

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“…Unlike any other PGE, Rh can be dissolved in boiling HBr/Br 2 . The metal can also be dissolved by melting with potassium or sodium hydrogensulfate, while Pt, Ir, and Ru remain unaffected (Renner et al, 2001). Rhodium is the only monoisotopic PGE, making it inaccessible for isotope dilution mass spectrometry.…”

Section: Propertiesmentioning

confidence: 99%

Rhodium

Meisel¹

2016

Encyclopedia of Earth Sciences Series

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“…The content of PGMs in nickel deposits varies depending on the type of the mineral deposit. In South Africa, the average platinum grade is around 27 g per tonne, whereas in Russia the average PGM content is 15 g per tonne in nickel sulphide ore deposits [86]. Taking as an average 20 g per tonne and the total world nickel production from sulphide ore for 2010 of 870 000 tonnes, it seems that 17 tonnes of PGMs were potentially available for recovery [87].…”

Section: (V) Nickel By-products: Cobalt and Platinum Group Of Metalsmentioning

confidence: 99%

Material efficiency: rare and critical metals

Ayres

Peiró

2013

Phil. Trans. R. Soc. A.

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In the last few decades, progress in electronics, especially, has resulted in important new uses for a number of geologically rare metals, some of which were mere curiosities in the past. Most of them are not mined for their own sake (gold, the platinum group metals and the rare Earth elements are exceptions) but are found mainly in the ores of the major industrial metals, such as aluminium, copper, zinc and nickel. We call these major metals ‘attractors’ and the rare accompanying metals ‘hitch-hikers’. The key implication is that rising prices do not necessarily call forth greater output because that would normally require greater output of the attractor metal. We trace the geological relationships and the functional uses of these metals. Some of these metals appear to be irreplaceable in the sense that there are no known substitutes for them in their current functional uses. Recycling is going to be increasingly important, notwithstanding a number of barriers.

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Platinum Group Metals and Compounds

Abstract: The article contains sections titled: 1. History 2. Properties … Show more

Cited by 34 publications

References 108 publications

Ba2NiOsO6 : A Dirac-Mott insulator with ferromagnetism near 100 K

Ba2NiOsO6 : A Dirac-Mott insulator with ferromagnetism near 100 K

Rhodium

Material efficiency: rare and critical metals

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