Results 91 to 100 of about 734,317 (337)
Atomic cobalt on nitrogen-doped graphene for hydrogen generation
Nature Communications, 2015 Reduction of water to hydrogen through electrocatalysis holds great promise for clean energy, but its large-scale application relies on the development of inexpensive and efficient catalysts to replace precious platinum catalysts.
H. Fei +13 more
semanticscholar +1 more source
Constructing Ionic Fast Diffusion Channels on LiNi0.5Mn1.5O4 for Lithium‐Ion Batteries
Advanced Functional Materials, EarlyView.A dual‐modification strategy is developed for LNMO cathode, where bulk Ti doping stabilizes the oxygen framework and simultaneously drives the in situ formation of LaTi2O6 nano‐islands as ion diffusion channels on (111) surfaces, enabling high‐rate capacity (∼100 mAh g−1 at 30 C) and excellent cycling retention (87.8% after 1000 cycles).
Xinyi Zhang +10 more
wiley +1 more source
The Separation of Cobalt by Solvent Extraction Using Oxime-Amine Mixture System
Journal 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
Advanced Functional Materials, EarlyView.This work presents a rate‐adaptive site transformation strategy in Ag‑ethylenediamine intercalated Co9S8, which not only enables parallel water dissociation and H* adsorption, but also allows the catalyst to provide more active sites under high demand, removing a major bottleneck. The catalyst achieves a record current density of 4.2 A cm−2@2.0 V, with
Yongqi Ye +3 more
wiley +1 more source
Thermal-fatigue and oxidation resistance of cobalt-modified Udimet 700 alloy [PDF]
Comparative thermal-fatigue and oxidation resistances of cobalt-modified wrought Udimet 700 alloy (obtained by reducing the cobalt level by direct substitution of nickel) were determined from fluidized-bed tests.
Barrow, B. J., Bizon, P. T.
core +1 more source
Domestic Cobalt Flow and Mid-Term Demand Forecast
Journal 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
Atomic Layer Deposition in Transistors and Monolithic 3D Integration
Advanced Functional Materials, EarlyView.Transistors are fundamental building blocks of modern electronics. This review summarizes recent progress in atomic layer deposition (ALD) for the synthesis of two‐dimensional (2D) metal oxides and transition‐metal dichalcogenides (TMDCs), with particular emphasis on their enabling role in monolithic three‐dimensional (M3D) integration for next ...
Yue Liu +5 more
wiley +1 more source
Experiment on Mineral Processing of a Mixed Iron Ore
Kuangchan zonghe liyongThe 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
Balancing Electrons to Break the Activity‐Selectivity Trade‐Off in H2O2 Electrosynthesis
Advanced Functional Materials, EarlyView.Carrier‐concentration balancing in CuS is achieved by coupling cobalt dopants with cobalt vacancies, converting CuS from p‐ to n‐type to accelerate 2e− ORR while withdrawing excess carriers to optimize *OOH binding for H2O2 desorption. The catalyst reaches 8.14 mol g−1 h−1 with >84% selectivity in 1.0 M KOH and drives robust electro‐Fenton dye ...
Hangning Liu +11 more
wiley +1 more source
Friction and wear of plasma-sprayed coatings containing cobalt alloys from 25 deg to 650 deg in air [PDF]
Four different compositions of self-lubricating, plasma-sprayed, composite coatings with calcium fluoride dispersed throughout cobalt alloy-silver matrices were evaluated on a friction and wear apparatus.
Jacobson, T. P., Sliney, H. E.
core +1 more source