Results 31 to 40 of about 10,064,357 (239)

Fibrous Platinum-Group Minerals in “Floating Chromitites” from the Loma Larga Ni-Laterite Deposit, Dominican Republic [PDF]

, 2016
This contribution reports on the observation of enigmatic fibrous platinum-group minerals (PGM) found within a chromitite body included in limonite (“floating chromitite”) from Ni-laterites in the Dominican Republic.
Joaquín Proenza, Mercè Font-Bardia, Aiglsperger, Thomas,, Francisco Longo, Longo, Francisco,, Proenza, Joaquín A.,, Thomas Aiglsperger, Roqué, Josep,, Sandra Baurier-Aymat, Font-Bardia, Mercé,, Josep Roqué, Baurier-Aymat, Sandra,, Salvador Galí, Galí, Salvador,   +13 more
core   +2 more sources

Phase Analysis of Pt, Pd and Au in Black Rock-type Platinum Group Element Minerals by ICP-MS

Yankuang ceshi, 2017
Black rock as an important carrier of platinum group elements was discovered in recent years. Due to the multiple origins and complex mineralization, the distribution and occurrence of platinum group elements in black rock are not clear, which is also ...
LIAN Wen-li, LAI Xin-ze, LIU Jun, ZHANG Jin-kuang, YU Ya-hui, WANG Ming-jun, SUN Yong, WANG Lin   +7 more
doaj   +1 more source

Editorial for the Special Issue “Platinum-Group Minerals: New Results and Advances in PGE Mineralogy in Various Ni-Cu-Cr-PGE Ore Systems”

, 2019
The platinum-group minerals (PGM) consist of a group of accessory minerals that concentrate the six platinum-group elements (PGE): osmium (Os), iridium (Ir), ruthenium (Ru), rhodium (Rh), platinum (Pt), and palladium (Pd) [...
Federica Zaccarini, Andrei Y. Barkov
core   +1 more source

Digitally Printed Eco‐Friendly Electronic Devices

Advanced Functional Materials, EarlyView.
Fabrication of electronics using eco‐friendly materials through digital printing routes is a promising strategy for improving life cycle sustainability and reducing the environmental impacts of conventional manufacturing. This review highlights state‐of‐the‐art eco‐friendly materials, green ink formulations, various resource‐efficient digital printing ...
Nitheesh M. Nair, Mikel Rincón‐Iglesias, Cristian Mendes‐Felipe, Fatemeh Etehadi, Senentxu Lanceros‐Méndez, Gerardo Hernandez‐Sosa   +5 more
wiley   +1 more source

Dual Single Atoms Boosting Photocatalytic Upcycling of Raw Polyvinylidene Fluoride Plastic

Advanced Materials, EarlyView.
To resolve the catastrophic disaster of plastic contamination, the Cu‐Fe dual‐single‐atom‐loaded In2P3S9 NSs photocatalyst was prepared for direct conversion of raw polyvinylidene fluoride plastic into valuable chemicals. The dual‐single‐atom catalyst exhibits exceptional performance, with a total acetic/formic acid production of ∼1351.8 µmol g−1 ...
Amin Talebian‐Kiakalaieh, Shiying Ren, Wenzhong Ji, Yun Liu, Bingquan Xia, Jingrun Ran, Shi‐Zhang Qiao   +6 more
wiley   +1 more source

An Investigation into the Theft of Concentrates and Their Upgrading to Saleable Platinum-Products

Geosciences, 2018
Over the years the theft of material from platinum producers has mainly taken place from high-grade areas such as the precious- and base-metal refineries and the converter and smelting operations.
Robert Schouwstra, Johan Mocke, Michael Duncan, Siksha Bramdeo, Yolanda Scharneck   +4 more
doaj   +1 more source

Noble metal mineralization in apatite titanomagnetite ores of the Suroyam massif (Middle Urals)

Georesursy, 2020
The mineralogical composition of apatite-titanomagnetite clinopyroxenites of the Suroyam massif, characterized by stable elevated contents of platinum group elements with the leading role of palladium, has been studied.
Dmitry E. Saveliev, Ivan A. Blinov
doaj   +1 more source

Biomass DNA: An Emerging Building Block for Advanced Materials

Advanced Materials, EarlyView.
Biomass DNA is rapidly emerging from its traditional role as a genetic blueprint to serve as a versatile abundant, highly programmable polymeric building block. This review highlights the transformation of macroscopic bulk biomass DNA into next generation of functional materials, spanning from dynamic hydrogels, sustainable bioplastics, and high ...
Yuwei Hu, Itamar Willner, Li Niu
wiley   +1 more source

MICRO-PIXE ANALYSIS OF PLATINUM-GROUP MINERALS FROM PLACER DEPOSITS

, 1992
Micro-PIXE and EPMA analyses of platinum-group minerals from placer deposits are being used in an attempt to determine whether the PGM are derived from ultramafic rocks by weathering, or formed directly in the placer by chemical accretion.
Criddle, Alan J., Tamana, Hardeep, Vaughan, David, SPRATT, J, Spratt, John, TAMANA, H, VAUGHAN, D, GRIME, G, Grime, Geoff, CRIDDLE, AJ, Reeson, Karen J., REESON, KJ   +11 more
core   +1 more source

Programmable Microgel Degradation in Dynamic Granular Hydrogels Guides Extracellular Matrix Assembly During Tissue Repair

Advanced Materials, EarlyView.
This study reports on the chemical modification of hyaluronic acid to create hydrogels with hydrolytic degradability ranging from 2–28 days. Granular hydrogels that undergo timed degradation to increase porosity enhance cell invasion and provisional ECM remodeling in a muscle injury model, leading to reduced fibrosis and improved regeneration ...
Zhiyuan Chen, Tuba Marjan, Xinyue Lu, Nicole E. Mertens, Keira Vesy, Dean E. Stornello, James F. Markworth, Taimoor H. Qazi   +7 more
wiley   +1 more source