Results 71 to 80 of about 277,971 (217)

Synthesis and characterisation of cobalt hydroxide, cobalt oxyhydroxide and cobalt oxide nanodiscs

, 2010
Cobalt hydroxide, cobalt oxyhydroxide and cobalt oxide nanomaterials were synthesized through simple soft chemistry. The cobalt hydroxide displays hexagonal morphology with clear edges 20 nm long.
Liu, Hongwei, Martens, Wayde N., Yang, Jing, Frost, Ray L.   +3 more
core   +1 more source

Potential phytoavailability of anthropogenic cobalt in soils as measured by isotope dilution techniques

Science of The Total Environment, 2008
Isotope dilution is a useful technique to determine the potential phytoavailability of an element in soil. This method involves equilibrating an isotope with soil and then sampling the labile metal pool by analysis of the soil solution (E value) or plants growing in the soil (L value).
Bakkaus, Estelle, Collins, Richard N., Morel, Jean-Louis, Gouget, Barbara   +3 more
openaire   +4 more sources

Cobalt-Catalyzed Hydrocyanation of Methylenecyclopropanes to Homoallylic Nitriles

, 2022
We describe herein a novel synthesis of various homoallylic nitriles via cobalt-catalyzed hydrocyanation of methylenecyclopropanes. Excellent selectivity, mild reaction conditions, good functional group compatibility, gram-scale reaction, and product ...
Mingdong Jiao (9547521), Xianjie Fang (1602598)   +1 more
core   +1 more source

Cobalt, the richest and most wonderful mining district the world has ever known, produces silver, nickel, cobalt, arsenic [electronic resource] : fortunes made rapidly /

, 1905
Cover title: Cobalt.Caption title: The romance of Cobalt.Electronic reproduction.Mode of access: Internet ...
Wills & Co. (Cobalt, Ont.)
core  

An electrochemical investigation of the formation of CoSx and its effect on the anodic dissolution of iron in ammoniacal-carbonate solutions [PDF]

, 2013
It has been found that the co-presence of cobalt (II) and thiosulphate ions in ammoniacal-carbonate solutions promotes the passivation of iron, under conditions in which it would otherwise continue to dissolve anodically. Electrochemical experiments have
Nikoloski, A.N., D'Aloya, A
core  

Zoning and contamination rate of magnesium and heavy metals of iron, zinc and copper in the north and northwest aquifer of Khoy (Zourabad) based on GIS and determining the contaminated source

Journal of Economic Geology, 2015
Introduction Heavy metals are the most toxic pollutants in aquatic ecosystems. This contamination can result from the release of heavy metal elements during alteration and weathering of ultramafic and mafic rocks (ophiolite zones).
Fariborz Khodadadi, Abdolnaser Fazlnia, Hossein Pirkharrati   +2 more
doaj  

An Ambient Photocatalytic Approach to In‐Situ Prepare Cobalt/Cobalt Phosphide and Cobalt/Cobalt Phosphide@Graphene Heterojunction Nanomaterials With Optimized Charge Separation Effects for Highly Efficient Relayed Electrocatalytic NOX− Reduction to NH3

Carbon Energy, EarlyView.
A visible‐light‐driven ambient photocatalytic method in‐situ fabricates Co/CoP‐x and Co/CoP@rGO heterojunction with enhanced charge separation, enabling highly efficient relayed electrocatalytic NOx− reduction to NH3 with outstanding Faraday efficiency and ammonia productivity.
Xin Zhao, Chuanjun Wang, Shenjie Liu, Guoqiang Wang, Jing Dong, Chen Lei, Geoffrey I. N. Waterhouse, Jing Xu   +7 more
wiley   +1 more source

Beyond Total Content: Assessing the Bioaccessibility of Metals in Tattoo Inks Using Validated Extraction Media. [PDF]

Anal Sci Adv
ABSTRACT A validated analytical workflow is presented for determining total and bioaccessible concentrations of regulated elements in tattoo inks, addressing the lack of harmonized protocols for comparing extraction approaches in complex matrices. Although current legislation defines limits for soluble fractions of selected metals, it does not specify ...
Astolfi ML, Zara L, Antonucci A, Protano C.   +3 more
europepmc   +2 more sources

Fe Atoms Accelerator Coupled With Oxygen Vacancies Channel Synergistically Boost OER Performance of Fe‐CoMoO4‐Ov Nanosheets

Carbon Energy, EarlyView.
Fe‐CoMoO4‐Ov/NF demonstrates significantly improved OER catalytic performance compared to CoMoO4. Specifically, the introduced Fe atoms act as a promoter for surface reconstruction, significantly reducing the energy required for surface reconstruction to generate FeCoOOH. The oxygen vacancies serve as electron channels between the core Fe‐CoMoO4‐Ov and
Chaojie Lyu, Jiarun Cheng, Yanhui Yu, Xinlong Tian, Yiming Liu   +4 more
wiley   +1 more source

Redefining the Nitrogen Cycle Through Electronic Configuration Driven Electrocatalysis for Low Carbon Energy

Carbon Energy, EarlyView.
This review reveals how electronic configuration engineering governs the entire electrocatalytic nitrogen cycle, providing structure‐informed insights into reaction selectivity, catalytic durability, and sustainable nitrogen utilization across energy and environmental systems. ABSTRACT The global nitrogen cycle is essential to food production, chemical
Jiamu Feng, Linai Zhou, Mincan Yang, Aoxiang Zhu, Zengfeng Wei, Weilin Xu, Jia Li, Jun Wan   +7 more
wiley   +1 more source