Results 101 to 110 of about 228,683 (310)

Cobalt-Catalyzed Asymmetric 1,4-Hydroboration of Enones with HBpin

open access: yes, 2021
Herein, a series of new 8-OIQ cobalt complexes were synthesized and used for cobalt-catalyzed chemo- and enantioselective 1,4-hydroboration of enones with HBpin to access chiral β,β-disubstituted ketones with good to excellent chemo- and ...
Xiang Ren (358465)   +3 more
core   +1 more source

Emergent Spin Supersolids in Frustrated Quantum Materials

open access: yesAdvanced Materials, EarlyView.
This review highlights developments in the study of spin super‐solids in frustrated quantum materials. Advanced experimental characterizations and computational studies enable a comprehensive understanding of the driving mechanisms of spin super‐solidity in various layered transition‐metal compounds, bridging materials, experiments, and theory aspects.
Yixuan Huang   +2 more
wiley   +1 more source

Removal of cobalt from lubricant oil by the use of bentonite: equilibrium, kinetic and adsorption preliminary studies

open access: yesBrazilian Journal of Radiation Sciences, 2019
Radionuclides may contaminate lubricant oils in nuclear power plants. In Brazil, this kind of waste has been stored in the generator’s facilities, awaiting treatment alternatives.
VALERIA CUCCIA   +2 more
doaj   +1 more source

A Super‐Adhesive Air Filter With Capillarity‐Mediated Spontaneous Particle Absorption via Dynamic Bond Exchange

open access: yesAdvanced Materials, EarlyView.
We address the inherently weak particle adhesion of conventional air filters by coating a dynamically crosslinked adhesive layer that delivers capillarity‐driven strong adhesion and particle absorption mediated by dynamic bond exchange. The resulting enhancement in particle adhesion enables efficient ultrafast (up to 20 m s−1) and omnidirectional ...
Junyong Park   +11 more
wiley   +1 more source

Mineral resource base of Russia’s cobalt: current state and development prospects

open access: yesГорные науки и технологии
The relevance of this study stems from the need to obtain a comprehensive picture of the state of the cobalt mineral resource base of the Russian Federation.
G. Yu. Boyarko, L. M. Bolsunovskaya
doaj   +1 more source

Theory Guided Fine‐Tune of Strain Effects in Pt Ternary Alloy via Rare Earth Templating: Achieving High Performance PEMFCs Catalysts

open access: yesAdvanced Materials, EarlyView.
Theory‐guided strain engineering and rare‐earth templating are combined to create Pt5(Ce)Co@Pt multilayer nanoparticles with a Pt5Co‐like sublayer that fine‐tunes *OH binding near the ORR volcano optimum. The resulting catalyst delivers exceptional mass activity and remarkable long‐term PEMFC durability, revealing a strategy for designing highly active
Qi Zhang   +15 more
wiley   +1 more source

Cobalt-Catalyzed Cyclotrimerization of Alkynes in Aqueous Solution

open access: yes, 2016
Cobalt-Catalyzed Cyclotrimerization of Alkynes in Aqueous ...
Bruce E. Eaton (235791)   +2 more
core   +1 more source

Lead Halide Perovskite Photoelectrocatalysis

open access: yesAdvanced Materials, EarlyView.
Lead halide perovskite semiconductors have emerged as highly promising materials for solar fuel and chemical synthesis. This perspective discusses advances made in the rational photoelectrode design to improve solar‐to‐chemical conversion, product scope, and scalability.
Virgil Andrei
wiley   +1 more source

Sintering Performance of Titanium Powder under Cold Isostatic Pressure

open access: yesKuangchan zonghe liyong
This is an article in the field of metallurgical engineering. In this article, TiH2 powder was selected as the experimental raw material to study the sintering behavior of TiH2 powder under different pressing pressure and holding time in cold isostatic ...
Baoqing ZHANG   +4 more
doaj   +1 more source

Kinetical study about the cobalt electrodeposition onto polycrystalline platinum

open access: yesQuímica Nova, 2013
An electrochemical study of Co electrodeposition onto polycrystalline Pt from an aqueous solution containing 10-2 M CoCl2 + 1 M NH4CI (pH = 9.3) was conducted at overpotential conditions. The current density transients showed two maxima that corresponded
Clara Hilda Rios-Reyes   +3 more
doaj   +1 more source

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