nickel cobalt oxygen

  • Oxygen vacancies enriched nickel cobalt based nanoflower ...

    Nov 01, 2021 · Nickel cobalt based metal oxides (NiCo 2 O 4, CoNiO 2 ), as one of the ideal candidate electrode materials for pseudocapacitors and ZIB, have drawn extensive research interests due to their high theoretical specific capacitance, multiple redox reactions and

  • Carcinogenic metals induce hypoxia-inducible factor ...

    Nickel (Ni2+) and cobalt (Co2+) mimic hypoxia and were used as a tool to study the role of oxygen sensing and signaling cascades in the regulation of hypoxia-inducible gene expression. These metals can produce oxidative stress; therefore, it was conceivable that reactive oxygen species (ROS) may tri

  • Highly efficient and robust sulfur-doped nickel-cobalt ...

    Nov 01, 2020 · A superior catalytic system for oxygen evolution reaction (OER) is developed utilizing a sulfur doping strategy to boost the intrinsic catalytic property of crystalline nickel-cobalt oxide. By varying the sulfur doping duration, the sulfur doping ratios can be altered, the morphology changed from nanorod to nanosheet, the defect oxygen density ...

  • Transition metal (Fe, Co, Ni, and Mn) oxides for oxygen ...

    Oct 01, 2016 · Among wide range of these metals, cobalt, manganese, nickel, and iron, have been extensively explored as bifunctional catalysts, capable of simultaneously catalyzing oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) for energy storage and conversion.

  • The Ni−O (Nickel-Oxygen) system | SpringerLink

    高达12%返现 · 81Jac: E. Jacobson and E. Rosen, “Thermodynamic Studies of High Temperature Equilibriums. 25. Solid State emf Studies of the Systems Iron-Ferrous Oxide, Nickel-Nickelous Oxide, and Cobalt-Cobaltous Oxide in the Temperature Range 1000–1600 K”, Scand. J. Metall., 10, 39–43 (1981). (Thermo; Experimental) Google Scholar.

  • Boride-derived oxygen-evolution catalysts | Nature ...

    Oct 19, 2021 · Li, H. et al. Amorphous nickel-cobalt complexes hybridized with 1T-phase molybdenum disulfide via hydrazine-induced phase transformation for water splitting. Nat. Commun. 8 , 15377 (2017).

  • 2526280 File000001 44075366 - pubs.acs.org

    1 Supporting Information Porous Multishelled Ni 2P Hollow Microspheres as Active Elec- trocatalyst for Hydrogen and Oxygen Evolution Hongming Sun †, Xiaobin Xu ‡, Zhenhua Yan †, Xiang Chen †, Fangyi Cheng †, ‡*, Paul S. Weiss ‡, Jun Chen †, § †Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai Universi-

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  • THE DEPENDENCE ON OXYGEN FUGACITY NICKEL AND

    THE DEPENDENCE ON OXYGEN FUGACITY OF NICKEL AND COBALT PARTITIONING BETWEEN OLIVINE AND SILICATE MELT by Deborah A. Zervas B.S Geology, Indiana University (1989) Submitted to the Department of Earth , Atmospheric, and Planetary Science In Partial Fulfillment of the Requirements for the Degree of MASTER OF SCIENCE in Geology at the

  • Nickel–cobalt oxides supported on Co/N decorated graphene ...

    In this work, nickel–cobalt oxides supported on Co/N decorated graphene were prepared by introducing nickel in a zeolitic imidazolate framework-67 (ZIF-67) as the precursor, which showed improved OER performance due to the as-derived Ni x Co y O 4, and maintained the ORR performance of Co/N doped carbon at the same time. Meanwhile, graphene ...

  • 3D nickel-cobalt diselenide nanonetwork for highly ...

    Oct 30, 2017 · Abstract. Active, stable and low-cost oxygen evolution reaction (OER) catalyst for electrochemical water splitting is key to efficient energy conversion and storage. Here, we report a three-dimensional (3D) nanonetwork as noble-metal-free electrode consisting of nickel cobalt diselenide (NiCoSe2) nanobrush arrays on Ni foam (NF) through the ...

  • In Situ Transformation of Metal–Organic Frameworks into ...

    6 小时前 · Developing earth-abundant electrocatalysts for efficient oxygen evolution reaction (OER) is of paramount significance for electrochemical water splitting. Herein, an efficient in situ etching–deposition growth strategy is employed to transform pristine two-dimensional (2D) Co-metal–organic frameworks into hollow Ni/Co double hydroxide arrays (denoted as Ni/Co-DH), which not only yields a ...

  • Influence of environmental conditions in the battery ...

    Currently, the most used battery cathode chemistries in the automotive sector are Nickel Manganese Cobalt (NMC), Lithium, Ferrum, Phosphate (LFP) and Lithium Cobalt Oxygen (LCO) . While NMC cells present a high energy capacity they have a low thermal stability compared to LFP battery cells.

  • Nickel - Wikipedia

    Nickel is a silvery-white metal with a slight golden tinge that takes a high polish. It is one of only four elements that are magnetic at or near room temperature, the others being iron, cobalt and gadolinium.Its Curie temperature is 355 °C (671 °F), meaning that bulk nickel is non-magnetic above this temperature. The unit cell of nickel is a face-centered cube with the lattice parameter of ...

  • The Effect of Cobalt Incorporation into Nickel–Iron Oxide ...

    Oct 06, 2021 · The addition of cobalt nitrate in the synthesis solution significantly affects the final form of the catalyst: the addition of 2 m m cobalt nitrate into the aqueous solution of 4 m m nickel and iron nitrate stabilizes the electrochemical synthesis of the catalyst, which leads to the formation of a homogenously spread 3D interconnected structure ...

  • Corrosion Alloys Guide - haynesintl

    characteristics of nickel and cobalt. Like nickel, cobalt is inherently resistant to corrosion, and can accommodate high levels of beneficial elements. However, cobalt exhibits two atomic forms: 1. A low temperature hexagonal close packed)(HCP form. 2. A high temperature face‐centered cubic (FCC) form.

  • Standard electrode potentials - Benjamin Mills

    The value of E indicates the willingness of a half-cell to be reduced (i.e. it is a reduction potential). It shows the how many volts are required to make the system undergo the specified reduction, compared to a standard hydrogen half-cell, whose standard electrode potential is defined as 0.00 V. At the top of the list is the most powerful ...

  • Carbon-Incorporated Nickel-Cobalt Mixed Metal Phosphide ...

    Carbon-Incorporated Nickel-Cobalt Mixed Metal Phosphide Nanoboxes with Enhanced Electrocatalytic Activity for Oxygen Evolution Angew Chem Int Ed Engl. 2017 Mar 27;56(14):3897-3900. doi: 10.1002/anie.201612635. Epub 2017 Feb 28. Authors Peilei He 1 ...

  • Ternary mesoporous cobalt-iron-nickel oxide efficiently ...

    Apr 02, 2019 · The O 1s region of the sample could be resolved into four oxygen species, from low to high binding energies being ascribed to the contributions of the lattice oxygen in metal oxides (529.8 eV), oxygen vacancies (531.5 eV) [46 , 47 ], Ni (Co)-O-H bond (532.5 eV) [48 ],

  • Solubility of iron, nickel, and cobalt in liquid potassium ...

    solubility of iron, nickel, and cobalt in liquid potassium and effect of oxygen gettering agents on iron solubility by james he swisber lewis research center cleueland, ohio -2734 - national aeronautics and space administration washington, d. c. 0 march 1965 . tech library ...

  • US4384940A - Chlorine leaching of nickel-cobalt-iron ...

    Metal values are recovered from mattes containing nickel, cobalt and iron by first suspending the mattes in water, oxygen pressure leaching and then chlorine leaching the residue from the oxygen leach.

  • Efficient electrocatalytic oxygen evolution on amorphous ...

    Efficient electrocatalytic oxygen evolution on amorphous nickel-cobalt binary oxide nanoporous layers ACS Nano. 2014 Sep 23;8(9):9518-23. doi: 10.1021/nn503760c. Epub 2014 Aug 22. Authors Yang Yang 1 , Huilong Fei, Gedeng Ruan, Changsheng Xiang, James M Tour. Affiliation 1 Department of ...

  • The influence of nickel and cobalt on putative members of ...

    Dec 25, 2001 · Cobalt and nickel may interact with the putative oxygen sensor by changing the redox state of the central iron atom of heme proteins, similar to the effects of hypoxia. It was investigated, therefore, whether cobalt and nickel interact with hemeproteins or ROS scavenging systems in the control of intracellular ROS level.

  • Nickel cobalt oxide hollow nanosponges as advanced ...

    Mar 30, 2015 · A class of novel nickel cobalt oxide hollow nanosponges were synthesized through a sodium borohydride reduction strategy. Due to their porous and hollow nanostructures, and synergetic effects between their components, the optimized nickel cobalt oxide nanosponges exhibited excellent catalytic activity towards oxygen evolution reaction.

  • A nanostructured nickel–cobalt alloy with an oxide layer ...

    Apr 26, 2017 · A nanostructured nickel–cobalt alloy with an oxide layer was fabricated and its superior catalytic activity towards the electrochemical oxygen evolution reaction in alkaline media was investigated. Firstly, a NiCo–SiO2 composite film was prepared via a potentiostatic electro-codeposition method. Then the SiO

  • Carbon-Incorporated Nickel-Cobalt Mixed Metal Phosphide ...

    Carbon-Incorporated Nickel-Cobalt Mixed Metal Phosphide Nanoboxes with Enhanced Electrocatalytic Activity for Oxygen Evolution Angew Chem Int Ed Engl. 2017 Mar 27;56(14):3897-3900. doi: 10.1002/anie.201612635. Epub 2017 Feb 28. Authors Peilei He 1 ...

  • Nickel / cobalt mining extraction procedures | Condorchem ...

    The parts enriched with nickel, cobalt, and often also iron, are mixed with metallurgical coke. This coke is obtained from bituminous coal in ovens with an oxygen-free atmosphere, removing the volatile content and obtaining a porous coal suitable for these metallurgical treatments. The ore is mixed with calcium oxide and silica, producing a slag.

  • In Situ Transformation of Metal–Organic Frameworks into ...

    6 小时前 · Developing earth-abundant electrocatalysts for efficient oxygen evolution reaction (OER) is of paramount significance for electrochemical water splitting. Herein, an efficient in situ etching–deposition growth strategy is employed to transform pristine two-dimensional (2D) Co-metal–organic frameworks into hollow Ni/Co double hydroxide arrays (denoted as Ni/Co-DH), which not only yields a ...

  • Influence of environmental conditions in the battery ...

    Currently, the most used battery cathode chemistries in the automotive sector are Nickel Manganese Cobalt (NMC), Lithium, Ferrum, Phosphate (LFP) and Lithium Cobalt Oxygen (LCO) . While NMC cells present a high energy capacity they have a low thermal stability compared to LFP battery cells.

  • Nickel - Wikipedia

    Nickel is a silvery-white metal with a slight golden tinge that takes a high polish. It is one of only four elements that are magnetic at or near room temperature, the others being iron, cobalt and gadolinium.Its Curie temperature is 355 °C (671 °F), meaning that bulk nickel is non-magnetic above this temperature. The unit cell of nickel is a face-centered cube with the lattice parameter of ...

  • Alternatives to Cobalt, the Blood Diamond of Batteries | WIRED

    Jun 07, 2018 · Cobalt is a byproduct of the production of other metals like nickel and copper, but it also exists in the earth’s crust on its own, in mines primarily in the Democratic Republic of the Congo.

  • Principles of Water Electrolysis and Recent Progress in ...

    Principles of Water Electrolysis and Recent Progress in Cobalt-, Nickel-, and Iron-Based Oxides for the Oxygen Evolution Reaction Dr. Mingquan Yu , Department of Heterogeneous Catalysis, Max-Planck-Institute für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany

  • US20010001650A1 - Recovery of nickel and cobalt from ore ...

    A process is provided for the selective recovery from an impure solution of pure nickel and cobalt solutions, suitable for electrolysis of the respective metals. The impure solution may be that obtained from acid leaching of nickel/cobalt bearing laterite or oxide ore. The impure solution is contacted with a solid ion exchange resin to selectively extract nickel and cobalt, while rejecting at ...

  • Fabrication of Nickel–Cobalt Bimetal Phosphide Nanocages ...

    Feb 23, 2018 · Fabrication of Nickel–Cobalt Bimetal Phosphide Nanocages for Enhanced Oxygen Evolution Catalysis Bocheng Qiu , Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P. R. China

  • Cobalt | History, Uses, Facts, Physical & Chemical ...

    Cobalt reacts slowly with dilute acids. It combines with oxygen and produce Co 3 O 4 and lose oxygen at higher temperature (900 o C) and give monoxide (CoO). Cobalt does not catch fire in air and is resistant to burning, unless it is in powder form. Cobalt is weak reducing metal and protected from oxidation by formation of a passivating oxide film.