The hydrogen evolution reaction (HER) was conducted on nickel-cobalt-molybdenum electrodes in a 30 wt% KOH solution at temperatures from 298 to 353 K. These nickel- and cobalt-based ternary materials were electrodeposited on a stainless steel screen, initially at a current density of 0.5 A cm −2 and subsequently at 2 A cm −2. …

Controllable sulfidation of polymetallic nickel cobalt molybdenum layered double hydroxides on Ni for high-performance hybrid supercapacitors - …

A reasonable design of excellent bifunctional catalyst is an effective strategy for large-scale hydrogen production. In this study, a two-stage electrodeposition method was used to prepare a crystalline-amorphous structure cobalt molybdenum phosphide layered particles with different sizes on a nickel (NF) substrate. Electron rearrangement at the …

Here we report an approach to synthesize porous hybrid nanostructures combining amorphous nickel-cobalt complexes … Amorphous nickel-cobalt complexes hybridized with 1T-phase molybdenum disulfide via hydrazine-induced phase transformation for water splitting Nat Commun. 2017 May 9; 8:15377. doi ...

In this study, we perform a simple method to obtain the bifunctional TMO-based electrocatalyst by in-situ tailoring the components of cobalt nickel molybdenum oxide on nickel . By optimizing the annealing temperature and reaction atmosphere, we integrate HER-active (CoMoNi) and OER-active (CoMoO x ) components together as …

Section snippets Materials. Nickel (II) nitrate hexahydrate (Ni(NO 3) 2 ·6H 2 O), Cobalt (II) nitrate hexahydrate (Co(NO 3) 2 ·6H 2 O), sodium molybdate dihydrate (Na 2 MoO 4 ·2H 2 O), and hexamethylenetetramine (HMTA) were obtained from Sigma Aldrich and used as received for the synthesis process. Isopropyl alcohol, Nafion solution (5 …

According to the experimental results, the highest dissolution rates of molybdenum (Mo, 75.82%), cobalt (Co, 96.81%), nickel (Ni, 93.44%) and aluminum (Al, 19.46%) were reached under optimum ...

A reasonable design of excellent bifunctional catalyst is an effective strategy for large-scale hydrogen production. In this study, a two-stage electrodeposition method was used to prepare a crystalline-amorphous structure cobalt molybdenum phosphide layered particles with different sizes on a nickel (NF) substrate.

Hierarchical Cobalt-Doped Molybdenum–Nickel Nitride Nanowires as Multifunctional Electrocatalysts | ACS Applied Materials & Interfaces., Chunling Zhu*, …

Cobalt and other metals, like chromium, molybdenum, and nickel, create alloys that are used as a material to construct total hip arthroplasty [25, 26]. Prostheses can be made only from metals, and they are called MoM (metal on metal), or they can contain metals and polyethylene – MoP (metal on polyethylene), or only ceramics.

Here we show that a nickel-molybdenum nanoalloy with tetragonal MoNi 4 phase can catalyze the HOR efficiently in alkaline electrolytes. The catalyst exhibits a high apparent exchange current ...

Reasonable structural design and metal-doping play significant roles in the optimization of electrochemical energy storage and conversion. Herein, in situ growth of Molybdenum-doped amorphous cobalt acid nickel nanoneedles on Ni (Mo-NiCo 2 O 4 /NF) has been successfully synthesized by a simple hydrothermal-annealing strategy. …

Transition metal-based layered double hydroxides (LDHs) have been capable of working efficiently as catalysts in the basic oxygen evolution reaction (OER) for sustaining hydrogen production of alkaline water electrolysis. Nevertheless, exploring new LDH-based electrocatalysts featuring both remarkable activity and good stability is still in …

The composition of the self-made cobalt is verified by XRD. As is shown in Fig. S1, the peaks at 44.2°, 51.5° and 75.6° are matched well with Co (PDF # 15-0806), indicating the successful synthesis of cobalt . Fig. S2 shows the SEM images of cobalt , it exhibits oriented layered structure and contains a large number of pores, …

Electrodeposited nickel‐molybdenum, nickel‐tungsten, cobalt‐molybdenum, and cobalt‐tungsten were characterized for the hydrogen evolution reaction (HER) in the electrolysis of 30 w/o KOH alkaline water at 25°C. The rate‐determining step (rds) of the HER was suggested based on the Tafel slope of …

Nickel-cobalt-molybdenum sulfides with adjustable morphology via coprecipitation and hydrothermal conversion as high-performance electrodes for asymmetric supercapacitors - ScienceDirect. Journal of Alloys and Compounds. Volume 838, 15 …

Molybdenum nickel-cobalt sulfide (MoNiCoS) microspheres have been electrodeposited on the Ni ([email protected]) under different concentrations for evaluating its effect on the morphology and ...

Mo-incorporated three-dimensional hierarchical ternary nickel-cobalt-molybdenum layer double hydroxide for high-efficiency water splitting - ScienceDirect. …

The kinetics of oxidation and hydrogenation of ground charcoalin the presence of nickel, cobalt, and molybdenum catalysts havebeen studied using a microbalance andin situX-ray diffractionto identify the phases present during the reactions.Nickel andcobalt were found to be better catalysts than molybdenum forthe …

This looks like a good option for grid-scale energy storage given the change to nickel-molybdenum-cobalt alloy catalyst that can bring the cost to competitive levels. Another advantage is a lower ...

Nickel. Molybdenum. Strontium. The 234 foods from a 1984 collection of the Food and Drug Administration's Total Diet Study were analyzed for the trace elements molybdenum, nickel, cobalt, vanadium, and strontium by plasma emission spectrometry. Daily intakes of these elements were then estimated for eight age- groups on the ba ….

At this time all commercial vena cava filters are fabricated from either nitinol (nickel, cobalt, and titanium alloy), phynox (nickel, cobalt, chromium, iron, and molybdenum alloy), or stainless steel wire in various catheter sheath sizes ranging from 7–14 French (2.3 – 4.7 mm diameter). These metals were chosen because they are biostable ...

Herein, nickel cobalt molybdenum based LDH@sulfide core–shell composites (NCM-LDH@NCMS) grown on Ni have been successfully prepared via a facile hydrothermal method, followed by controllable sulfidation methods. The effect of sulfidation time on the electrochemical performance of NCM-LDH@NCMS was …

Generally, 6 mmol cobalt nitrate hexahydrate (Co(NO 3) 2 ·6H 2 O), 0.43 mmol ammonium molybdate tetrahydrate ((NH 4) 6 Mo 7 O 24 ·4H 2 O), 3 mmol nickel nitrate hexahydrate (Ni(NO 3) 2 ·6H 2 O), 12 mmol urea and 2 mmol ammonium acid (NH 4 HF 2) were dissolved in 40 mL Milli-Q water using extensive stirring at the room …

Scope. 1.1 This specification 2 covers cobalt-chromium-nickel-molybdenum-tungsten alloy in the form of bar or rod. While the alloy is typically used for wear applications and general corrosion service, it is not limited to this usage. 1.2 UNS R31233 is the only alloy currently allowed to be certified to this specification.

The Huayue Nickel Cobalt joint venture plans to produce 60,000 tonnes a year of mixed nickel hydroxide cobalt. China Moly, which already operates one of the world's biggest cobalt mines in the ...

Key words: Nickel - Cobalt- Molybdenum- Iron - Methanobacterium thermoautotrophicum - Trace elements. Methanobacterium thermoautotrophicum is a strict anaerobic bacterium which grows on H2 and CO2 as sole energy and carbon sources; NH3 and H2S are used as nitrogen- and sulfur-sources, respectively (Zeikus

Transporters for cobalt and molybdenum3.1. Cobalt transporters. Several forms of transporter proteins for Co are reported in the literature. Eitinger et al. (2005) described nickel/Co transporter (NiCoTs) as a form of secondary metal transporter in prokaryotes and fungi. It is mainly composed of an eight transmembrane domain (TMD) …

Description. lnconel® 617 is a nickel-chromium-cobalt-molybdenum alloy with an exceptional combination of metallurgical stability, strength, and oxidation resistance at high temperatures. Resistance to oxidation is enhanced by an aluminum addition. The alloy also resists a wide range of corrosive aqueous environments.

Here, we develop a facile and effective method to directly grow dandelion-like molybdenum–nickel–cobalt ternary oxide (MNCO) nanowire arrays (NWAs) on carbon nanotube fiber (CNTF) with a high specific capacitance of 490.7 F cm −3 (1840 mF cm −2) at a current density of 1 mA cm −2. Benefiting from the three-dimensional nanostructure ...