From the journal: Journal of Materials Chemistry A. Platinum group metal-free NiMo hydrogen oxidation catalysts: ... We introduce a new platinum group metal-free (PGM-free) hydrogen oxidation electrocatalyst with superior performance in anodes of alkaline exchange membrane fuel cells (AEMFCs). A carbon-supported bimetallic nickel–molybdenum ...
The platinum group metals (PGMs) comprise 6 elements, which are platinum, palladium, rhodium, ruthenium, iridium, and osmium. These metals have high melting points, high heat resistance, high corrosion resistances, and unique catalytic properties. Owing to these properties, PGMs are being used widely in many industrial fields, most notably as ...
The three elements above the platinum group in the periodic table ( iron, nickel and cobalt) are all ferromagnetic; these, including the lanthanide element gadolinium, are the only known transition metals with this property. Contents 1 History 2 Properties and uses 3 Occurrence 4 PGM minerals 4.1 Platinum 4.2 Osmium 4.3 Iridium 4.4 Ruthenium
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The study estimated the after-tax net present value to be US$982 million, based on an 8% discount rate and a three-year average price of US$1,055 per oz. palladium, US$931 per oz. platinum, US$1,318 per oz. gold, and US$1,930 per oz. rhodium.
Article Synopsis The principal possibility of processing the industrial poor collective concentrates of platinum group metals (pgms) using a hydrocarbonyl technology with the selective concentration of pgms from poor multicomponent chloride and chloride-sulfate solutions with the subsequent production of pure pgms is shown. 1. Introduction
Platinum-group (PG) complexes have been used as antibacterial and anticancer agents since the discovery of cisplatin. The science world still requires improvement on these complexes because of multidrug and antineoplastic resistances. This review observes discoverers and history of these platinum-group metals (PGMs), as well as their beneficial …
Editor's Choice articles are based on recommendations by the scientific editors of MDPI journals from around the world. Editors select a small number of articles recently published in the journal that they believe will be particularly interesting to authors, or important in this field. ... Special Issue "Platinum-Group Elements and Platinum ...
Accurate and precise determination of platinum group elements (PGEs) at ppb concentrations in geological samples is important but problematic. This paper reports an improved analytical method for the determination of Pt, Pd, Ru, Ir and Rh at sub-ppb levels by isotope dilution-inductively coupled plasma mass
The Platinum Group Elements (PGE: Osmium, Iridium, Ruthenium, Rhodium, Platinum, and Palladium), also known as platinum group metals and platinoids, are transition metals located in the d-block of the Periodic Table of Elements (Groups VIII, IX, and X, Periods 5 and 6).The atomic radii of the Os, Ir, and Pt subgroup, caused by the lanthanide contraction of …
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Two types of platinum group metal particles were found in borosilicate nuclear waste glasses: needle-shaped RuO 2 particles and spherical PdRh x Te y alloys. They form a dense sediment of high electrical conductivity and relatively high viscosity at the bottom of the ceramic melting furnace. The sludge shows a non-Newtonian flow behavior.
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Concentrations, distribution patterns, and mobility of platinum-group elements (PGEs) are investigated in some Ni-laterite profiles from the Oman ophiolite as potential unconventional PGE resource. The ultramafic protoliths display the lowest PGE contents (average total = 35 ppb) that are similar to the PGE contents in the overlying saprolite ...
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The Journal - Market Insights Direct From Our Team The Journal Investing for a Better Tomorrow By LIAM FARLOW AND JODIE BANNAN, 05 May 2022 The world economy emits around 50 billion tonnes of CO 2 -equivalent greenhouse gases (GHGs) every year, of which 36 billion tonnes is derived from the burning of fossil fuels. [1]
INTRODUCTION. Early Proterozoic and Archaean komatiites are widely considered to have formed by high degrees of partial melting (between 30 and 50%; Arndt et al., 2008) of deep mantle sources, and hence are invaluable sources of information on the chemical composition, and specifically the platinum-group element (PGE) content, of the mantle of the ancient Earth.
Platinum-group metals.. [United States. Bureau of Mines.;] Home. WorldCat Home About WorldCat Help. Search. Search for Library Items Search for Lists Search for ... Journal, magazine: National government publication : EnglishView all editions and formats: Rating: (not yet rated) 0 with reviews - Be the first.
Platinum group metals (PGMs) are widely applied in the field of catalysts due to their excellent catalyst activity and high-temperature stability. The rapid generation of the waste catalyst has become the significant characteristic of PGMs with the accelerating consumption of limited PGMs nature resources.
Abstract. Platinum-group elements are strategically important metals 1. Finding new deposits is becoming increasingly difficult owing to our limited understanding of the processes that affect ...
Platinum group metal (PGM) nanoparticles (NPs) have been investigated in a variety of research fields such as catalysis and electronics. Alloying has been recognized as one of the most efficient ways of improving or creating properties in metals.
Solid-solution alloy nanoparticles: Platinum group metal (PGM) alloy nanoparticles (NPs) have been investigated in a variety of research fields, such as catalysis and electronics.Here, recent advances in PGM-based solid-solution alloy NPs are focused on, with particular attention to immiscible alloy systems.
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This short review article presents an overview of the preparation of platinum group metal complexes that are utilized as catalysts or catalyst precursors. The organization of this article begins with a description of the sources of the platinum group metals, goes through their basic refining and separation methodologies, and then into each individual metal's …
The deposit is characterised by the dominance of isoferroplatinum, together with significant numbers of inclusions of Os–Ir–Ru alloys and platinum-group element (PGE) sulfides. A study of the Os–Ir–Ru alloys permitted recognition of two types of iridium with different morphology and composition.
Platinum-Group Element Mineralisation in the Great Dyke, Zimbabwe, and its Relationship to Magma Evolution and Magma Chamber Structure December 2001 South African Journal of Geology 104(4):319-342
(2006). Impact of Platinum Group Metals on the Environment: A Toxicological, Genotoxic and Analytical Chemistry Study. Journal of Environmental Science and Health, Part A: Vol. 41, No. 3, pp. 397-414.
Direct extraction of platinum group metals (PGMs) from nitric acid solutions by using the phase transition phenomenon of thermoresponsive poly(N-isopropylacrylamide) (PNIPAAm) were realized.The trivalent PGMs such as rhodium and ruthenium could be extracted onto PNIPAAm gel as the dissociated cationic complexes with hydrophobic soft donor ligands by controlling …
List view of all platinum journals Detailed view of our platinum journals Applied Computing and Informatics Focusing on the knowledge and use of IT applications, this journal serves as a forum for applied and theoretical understanding and encourages submissions from both within and beyond academia. Applied Economic Analysis
The behavior of platinum group metals (PGMs) during their recovery with smelting of spent automotive ceramic catalysts powder in the presence of metallic copper at elevated temperatures is studied in this paper. Two different metal recovery mechanisms proved to be active in this process: 1) Wetting of micro-dispersed particulates of PGMs in the slag by molten copper, …
Some workers suggested that the PGE could crystallize from the magma as platinum-group minerals (PGM) that accumulate on the top of the crystal pile (e.g. Hiemstra, 1979). Others have suggested that PGE are collected by a sulphide liquid that segregated from the magma and this sulphide liquid accumulated on the crystal pile (e.g. Campbell et al ...
1971-1980. 1961-1970. 1957-1960. Johnson Matthey's journal of research on the platinum group metals and developments in their application in industry. Platinum Metals Review was published by Johnson Matthey Plc from 1957 until 2014. Every issue is available free of charge in electronic formats from the Journal Archive on this website.
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The platinum group metals (PGMs) comprise 6 elements, which are platinum, palladium, rhodium, ruthenium, iridium, and osmium. These metals have high melting points, high heat resistance, high corrosion resistances, and unique catalytic properties. Owing to these properties, PGMs are being used widely in many industrial fields, most notably as ...
The behavior of platinum group metals (PGMs) during their recovery with smelting of spent automotive ceramic catalysts powder in the presence of metallic copper at elevated temperatures is studied in this paper. Two different metal recovery mechanisms proved to be active in this process: 1) Wetting of micro-dispersed particulates of PGMs in the slag by molten copper, …
Introduction. Platinum group metals (PGMs) are widely used in many industries due to their distinctive properties such as catalytic activity, chemical inertness, corrosion resistance and thermoelectric stability (see …
