Results 151 to 160 of about 663,607 (251)
, 2014 Plemenite kovine so skupno ime za redke kovinske kemijske elemente, ki jih lahko najdemo v naravi in imajo visoko ekonomsko vrednost. Zgodovinsko gledano so bile pomembne kot plačilno sredstvo oziroma sredstvo menjave.
Tekmec, Jure
core
Advanced Science, EarlyView.This review presents the research advances of adaptive conductive systems from the perspective of materials, circuits, systems, and applications. Deformable conductors consist of substrates/matrices and conductive materials, structural design of circuit interconnections, fabrication of circuit interconnections, as well as intelligent systems ...
Yufei Lu +7 more
wiley +1 more source
Institutional Explanations of Economic Development: the Role of Precious Metals [PDF]
Recent research has emphasized the influence of colonization on the institutional development and economic performance in former European colonies. Where European colonizers settled, they replicated the investment-conducive institutions found at home. It
Reyer Gerlagh, Elissaios Papyrakis
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Advanced Science, EarlyView.A lattice‐strain‐engineered Co0.28Cu0.67Ir0.05 trimetallic alloy nanoparticle electrocatalyst is rationally designed for efficient alkaline seawater electrolysis. Larger Ir atoms in the CoCu lattice modulate the local coordination environment, generating compressive lattice strain and highly active catalytic sites.
Ankur Kumar +5 more
wiley +1 more source
Dissolution behavior of precious metals and selective palladium leaching from spent automotive catalysts by trihalide ionic liquids. [PDF]
RSC Adv, 2021 Van den Bossche A +4 more
europepmc +1 more source
Perspectives for treatment of precious metals containing flotation wastes
, 1992 peer reviewedFour groups of precious metals containing mineral resources occuring in Bulgaria are described. The precious metals which they contain are often lost in the tailings during flotation since the exisitng schemes are targeting the recovery of ...
Gaydardzhiev, Stoyan
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Advanced Science, EarlyView.This review establishes a catalyst–electrode–device–system framework for tri‐functional HER/OER/ORR electrocatalysis that couples water splitting with Zn–air batteries. Five catalyst families are covered: noble‐metal, metal‐based, single‐atom, heterostructure, and metal‐free systems.
Xixi Di +9 more
wiley +1 more source
Mixed‐Valence Atomic‐Layer Iridium Patches Enhance Alkaline Hydrogen Evolution
Advanced Science, EarlyView.Engineering iridium architectures on Cu3P nanowires reveals that atomic‐layer Ir patches form a mixed‐valence interfacial motif with an anisotropic electronic structure. This configuration balances water dissociation and hydrogen adsorption/desorption, delivering superior alkaline hydrogen evolution with a 27 mV overpotential and 1 A cm−2 operation in ...
Payam Ahmadian Koudakan +7 more
wiley +1 more source
Advanced Science, EarlyView.Interfacial synergy between carbon cloth and Pt‐free metal/nonmetal catalysts enhances charge transfer, wettability, active site accessibility, and hydrogen bubble release, enabling efficient and durable hydrogen evolution across acidic, neutral, and alkaline media for scalable green hydrogen production.
Syed Mohammed Hubaish +4 more
wiley +1 more source
Investment Opportunities – Gold & Other Precious Metals
, 2018 This thesis is focused on the comparison of gold and other precious metals from an investment point of view. At first, gold, silver, platinum and palladium will be introduced individually and some general information about each metal will be presented ...
Jakoubek, Marek
core +1 more source