Results 91 to 100 of about 228,683 (310)

Experiment on Mineral Processing of a Mixed Iron Ore

open access: yesKuangchan zonghe liyong
The iron grade of the mixed ore is 37.81%, and the main iron minerals are siderite and hematite, in which mineral contents are 50.35% and 24.28%, respectively, and the ratio of the two mineral contents is 2.07∶1.
Zhilu YANG   +3 more
doaj   +1 more source

Phase Boundary Engineering of Co2P‐CoP Branched Nanoparticles Enhances Cobalt Oxidation for Oxygen Evolution Electrocatalysis

open access: yesAdvanced Materials, EarlyView.
Phase boundaries between Co2P and CoP are constructed through a controlled transformation of Co to Co2P‐CoP branched nanoparticles. The polycrystalline mixed‐phase Co2P‐CoP branches are enriched with phase boundaries that stabilize Co active sites for OER. This work highlights phase boundary engineering as a powerful approach to tailor active sites and
Zeno R. Ramadhan   +10 more
wiley   +1 more source

The Separation of Cobalt by Solvent Extraction Using Oxime-Amine Mixture System

open access: yesJournal of MMIJ, 2017
Extraction behavior of cobalt from sulfate media containing excess manganese by mixtures LIX63 and several amines was investigated. The addition of amines shifted cobalt extraction isotherm to higher pH region in all case.
Masatoshi TAKANO   +5 more
doaj   +1 more source

Programmable 3D Photovoltaics via Mechanically Origami‐Coded Interlocked 3D Kirigami and Nano‐Root Anchored AgNWs–In–Ga Multiphasic Alloy Conductor

open access: yesAdvanced Materials, EarlyView.
Mechanically origami‐coded 3D kirigami photovoltaics convert a single extension–release cycle into deterministic self‐folding, reconfiguring planar solar cells into programmable 3D modules. Distinct coding strategies enable either ultrahigh stretchability (500% system strain) or ultrahigh initial effective areal coverage (225%).
Seok Joon Hwang   +15 more
wiley   +1 more source

Domestic Cobalt Flow and Mid-Term Demand Forecast

open access: yesJournal of MMIJ, 2016
Cobalt tends to occur in the high risk regions of the world. Cobalt sources are typically concentrated in Congo, DRC, and there are concerns about supply security.
Yuna SEO, Shinichirou MORIMOTO
doaj   +1 more source

Cobalt-Catalyzed Selective Hydrogenation of Nitriles to Secondary Imines

open access: yes, 2018
The first example of cobalt-catalyzed selective hydrogenation of nitriles to secondary imines is reported. The results demonstrate the significantly different selectivity compared with the previously reported cobalt catalytic system during the nitrile ...
Sandeep Suryabhan Gholap (5807666)   +13 more
core   +1 more source

Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix

open access: yesAdvanced Materials, EarlyView.
3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández   +15 more
wiley   +1 more source

Geological characteristics, controlling factors and prospecting directions of associated cobalt deposits in the Weiningbeishan area, Ningxia

open access: yes地质科技通报
Weiningbeishan is located in the eastern section of the North Qilian orogenic belt, which is one of the regions with the most favorable conditions for cobalt mineralization in Ningxia.
Lianfu HAI   +8 more
doaj   +1 more source

Cobalt-ligand bond lengths from crystallography, EXAFS, and DFT.

open access: yes, 2016
Cobalt-ligand bond lengths from crystallography, EXAFS, and DFT.
Stefan Mebs (1455724)   +6 more
core   +1 more source

Cobalt-Catalyzed Migrational Isomerization of Styrenes

open access: yes, 2020
An efficient cobalt-catalyzed migrational isomerization of styrenes was developed using the thiazoline iminopyridine (TIP) ligand. This reaction is operationally simple and atom-economical using readily available starting materials to access ...
Jiajin Zhao (8275509)   +3 more
core   +1 more source

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