Results 81 to 90 of about 839,329 (389)

Research Status of Resource Utilization and Sulfidation Roasting Technology of a Low-grade Nickel Sulfide Ore

open access: yesKuangchan zonghe liyong
The reserves of nickel ore resources are rich in China, mainly nickel sulfide.With the continuous exploitation of the high-grade nickel sulfide ore with high quality and easy to choose, its reserves and production are decreasing year by year.
Yingying SHEN   +5 more
doaj   +1 more source

Six-fold in-plane magnetic anisotropy in Co-implanted ZnO (0001)

open access: yes, 2010
Magnetic anisotropies of Co-implanted ZnO (0001) films grown on single-crystalline Al2O3 (11-20) substrates have been studied by ferromagnetic resonance (FMR) technique for different cobalt implantation doses.
Akdogan, Numan   +7 more
core   +1 more source

Tailoring Redox Active Sites with Dual‐Interfacial Electric Fields for Concurrent Photocatalytic Biomass Valorization and H2 Production

open access: yesAdvanced Functional Materials, EarlyView.
A rationally engineered bifunctional photocatalyst is reported, which achieves simultaneous selective oxidation of biomass‐derived 5‐hydroxymethylfurfural (HMF) to 2,5‐diformylfuran (DFF) and efficient H2 evolution. By precisely positioning Au and Co3O4 on Zn3In2S6 nanosheet, dual interfacial electric fields are well constructed to spatially separate ...
Shiqing Li   +8 more
wiley   +1 more source

Complications, Conversion, and Secondary Procedures Following Minimally Invasive Periacetabular Osteotomy: A Single-Surgeon Case Series

open access: yesArthroplasty Today
Background: The introduction of minimally invasive periacetabular osteotomy (PAO) has reduced complications, allowing a broader range of patients to be considered for the procedure.
Mohammad H. Amer, FRCS (T&O)   +4 more
doaj   +1 more source

GeAl2‐2xFe2xO3(OH)4 Nanotubes: New Electrocatalyst for Oxygen Evolution Reaction

open access: yesAdvanced Functional Materials, EarlyView.
Fe‐doped imogolite nanotubes are synthesized via a one‐step hydrothermal method with varying Fe substitution ratios x. Structural and spectroscopic analyses confirm homogeneous Fe incorporation while preserving tubular shape. Optimal doping at x = 0.05 enhances optical absorption, narrows band gap, reduces charge transfer resistance, and significantly ...
Yassine Naciri   +12 more
wiley   +1 more source

Development of China's Cobalt Industry: Current Status, Problems, and Countermeasures

open access: yes中国工程科学
Cobalt is an essential material for the development of the new energy industry. Based on the latest data regarding the cobalt resource industry of China and worldwide, this study analyzes the challenges faced by the development of China’s cobalt resource 
Duan Jun   +6 more
doaj   +1 more source

Scientific Opinion on safety and efficacy of cobalt carbonate as feed additive for ruminants, horses and rabbits

open access: yesEFSA Journal, 2012
Cobalt(III) is a component of cobalamin. Its essentiality as trace element results from the capacity of certain animal species to synthesise cobalamin by the gastrointestinal microbiota.
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP)
doaj   +1 more source

Synthesis and antibacterial effects of cobalt–cellulose magnetic nanocomposites [PDF]

open access: yes, 2017
© The Royal Society of Chemistry. Green synthesis is employed to prepare cobalt/cellulose nanocomposites with cubic (α-cobalt) cobalt as a main component with antibacterial and magnetic properties. An in situ reduction of aqueous solutions of cobalt ions
Alahmadi, N. S.   +12 more
core   +1 more source

Tailoring the Properties of Functional Materials With N‐Oxides

open access: yesAdvanced Functional Materials, EarlyView.
The properties of materials bearing N‐oxide groups are often dominated by the polar N+─O− bond. It provides hydrophilicity, selective ion‐binding, electric conductivity, or antifouling properties. Many of the underlying mechanisms have only recently been discovered, and the interest in N‐oxide materials is rapidly growing.
Timo Friedrich   +5 more
wiley   +1 more source

Аdsorption of Co2+ and radioactive 60Со by mesoporous TiO2

open access: yesХімія, фізика та технологія поверхні, 2019
Introduction shows the important of this scientific direction. 60Co with half-life of 5.3 years is one of the few anthropogenic, gamma-emitting radionuclides, that can be detected in aquatic environments affected by liquid effluent discharged from ...
H. V. Vasylyeva   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy