Results 21 to 30 of about 10,815,055 (289)

Electrochemical Recycling of Platinum Group Metals from Spent Catalytic Converters

open access: yesMetals, 2020
Platinum group metals (PGMs: Pt, Pd, and Rh) are used extensively by the industry, while the natural resources are limited. The PGM concentration in spent catalytic converters is 100 times larger than in natural occurring ores.
Cornelia Diac   +6 more
doaj   +1 more source

A feasibility study for reset control of an industrial batch reactor [PDF]

open access: yes, 2010
Includes abstract.Includes bibliographical references (leaves 128-133).A feasibility study for the application of reset control to the temperature control loop of a pressurized exothermic batch leach reactor in the hydrometallurgical Precious Group ...
Lahee, Roanne
core   +1 more source

Extraction of platinum metals during procssing of chromium ores from dunnite deposits

open access: yesЗаписки Горного института, 2018
Currently, the main raw materials sources of platinum group metals in Russia are complex sulfide copper-nickel ores of the Taimyr region and placer deposits.
G. V. Petrov   +2 more
doaj   +1 more source

Recovery of platinum group metals from spent automotive catalysts: A review

open access: yesCleaner Engineering and Technology, 2021
In the last decades, a worldwide investment in the recovery or substitution of platinum group metals (PGMs) has been financed. PGMs have been classified as critical raw materials (CRMs), thus a circular economy model should be implemented for their ...
Iakovos Yakoumis   +3 more
doaj   +1 more source

Identification of platinum ores via trace element signatures [PDF]

open access: yes, 2011
This project studies the natural variation in the elemental composition of processed platinum ore from different extraction locations in South Africa in order to assess whether this provides sufficient information for the elemental fingerprinting" of the
Hassan, Maisson Mohamed Zeinelabieden
core   +1 more source

Synthesis and Contemporary Applications of Platinum Group Metals Complexes with Acyclic Diaminocarbene Ligands (Review) [PDF]

open access: yes, 2022
: Complexes of platinum group metals with acyclic diaminocarbene ligands have found application as transition metal catalysts, photoluminescent materials, chemosensors, and anticancer drugs.
Luzyanin, KV   +3 more
core   +1 more source

III. On the liquation of metals of the platinum group [PDF]

open access: yesProceedings of the Royal Society of London, 1892
Abstract The author has continued a previous investigation of his own which was published in the ‘Proceedings of the Royal Society’ (‘Roy. Soc. Proc.,’ 1890, vol. 47, pp. 180—186). In the present paper he discusses, in much detail, the effects of the cooling of large masses of the alloys gold-platinum, gold-palladium, platinum ...
openaire   +2 more sources

2D layered noble metal dichalcogenides (Pt, Pd, Se, S) for electronics and energy applications

open access: yesMaterials Today Advances, 2020
The layered materials, two-dimensional (2D) transition metal dichalcogenides (TMDs) have attracted increasing attention because of their unique properties in the atomic structures, bandgaps, electronic properties, electrochemistry activities, and the ...
E. Chen, W. Xu, J. Chen, J.H. Warner
doaj   +1 more source

Platinum Group Minerals in Eastern Brazil GEOLOGY AND OCCURRENCES IN CHROMITITE AND PLACERS

open access: yes, 2005
Brazil does not have working platinum mines, nor even large reserves of the platinum metals, but there is platinum in Brazil. In this paper, four massifs (mafic/ultramafic complexes) in eastern Brazil, in the states of Minas Gerais and Ceara, where ...
Angeli, Nelson
core   +1 more source

Alloying–realloying enabled high durability for Pt–Pd-3d-transition metal nanoparticle fuel cell catalysts

open access: yesNature Communications, 2021
Durability of catalysts under fuel cell reaction conditions is challenging for active nanoalloy electrocatalysts derived from platinum group metals and other transition metals.
Zhi-Peng Wu   +14 more
doaj   +1 more source

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