• Electrochemical preparation and characterization of a ...

    Cited by: 17
  • Preparation and Characterization of Nickel-Cobalt

    Preparation and Characterization of Nickel-Cobalt Alloy Nanostructures Array Fabricated by Electrodeposition Article in CrystEngComm 16(30) May 2014 with 65 Reads How we measure 'reads'

  • Preparation and characterization of nickel–cobalt

    Cited by: 67
  • Preparation and characterization of nickel–cobalt alloy ...

    A series of Ni–Co alloy nanocones arrays were fabricated by means of electrodeposition method without using any template. The alloy nanocones crystallized in the face-centered cubic lattice structure and grew preferentially along <110> directions. The aspect ratio of the alloy cones was found to increase wit

  • Preparation and characterization of lithium nickel

    Cited by: 21
  • Preparation and characterization of nickel–cobalt

    Preparation and characterization of nickel–cobalt-diamond electro-composites by sediment co-deposition Article in Surface and Coatings Technology 201(14):6372-6379 April 2007 with 81 Reads

  • Electrochemical deposition of Cobalt, Nickel-Cobalt ...

    2007-10-1  template deposition and characterization techniques will be discussed in the first and second section respectively, followed by the experimental details in part three. The fourth section will deal with the preparation and characterization of the porous alumina

  • Preparation and Characterization of Nickel- and Cobalt ...

    2003-8-6  Preparation and Characterization of Nickel-and Cobalt-doped Magnetites Maria de Fátima Fontes Lelisa*, José Domingos Fabrisa, Wagner da Nova Mussela, Armando Yoshihaki Takeuchi b ... Nickel, cobalt and iron were deter-mined by dissolving samples with hydrochloric acid 1:1.

  • Preparation and characterization of Nickel-and cobalt ...

    Preparation and characterization of Nickel-and cobalt-doped magnetites . By Maria de Fátima Fontes Lelis, José Domingos Fabris, Wagner da Nova Mussel and Armando Yoshihaki Takeuchi. Cite . BibTex; Full citation; Abstract. Nickel- and cobalt-doped magnetites were prepared by a co-precipitation method and studied in some detail, in an effort to ...

  • Preparation and characterization of nickel cobalt

    2017-11-2  Preparation and characterization of nickel–cobalt-diamond electro-composites by sediment co-deposition Malathy Pushpavanama,⁎, H. Manikandan b, K. Ramanathan b a Central Electrochemical Research Institute, Karaikudi 630 006 TN, India b A.C. College of Engineering and Technology, Karaikudi 630 006 TN, India Received 14 August 2006; accepted in revised form 8 December 2006

  • Electrochemical deposition of Cobalt, Nickel-Cobalt ...

    2007-10-1  template deposition and characterization techniques will be discussed in the first and second section respectively, followed by the experimental details in part three. The fourth section will deal with the preparation and characterization of the porous alumina

  • Electrochemical deposition of Cobalt, Nickel-Cobalt ...

    2007-10-1  Electrochemical deposition of Cobalt, Nickel-Cobalt, Nickel-Copper and Zinc-Nickel nanostructured materials on aluminum by template self-organization

  • Structural and Dielectric Characterization of Nickel ...

    2020-6-7  During the last few years, synthesis of nano structured oxide materials had attracted considerable attention [1]. The metal oxides are extremely important technological materials for use in electronic and photonic devices, in chemical industries and in medical fields [2]. An expanding trend for the nanomaterials is the fabrication of composite structures and devices with materials capable of ...

  • DGIST Scholar: Preparation and characterization of

    2017-7-12  Preparation and characterization of nickel-cobalt alloy nanostructures array fabricated by electrodeposition Title Preparation and characterization of nickel-cobalt alloy nanostructures array fabricated by electrodeposition

  • Intrinsic energy-storage mechanism of low crystallinity ...

    2020-2-3  In this study, the interactions between hydroxide and NCS with low crystallinity are investigated through electrochemical testing and both surface and structure characterization. Compared to previous reports, electrochemical desulfurization is first introduced in electrochemical charge storage to reveal the intrinsic energy-storage mechanism of NCS in alkaline electrolyte.

  • Preparation and Characterization of Nickel Cobalt ...

    2017-8-16  Preparation and electromagnetic properties of Ni 1−xCu xFe 2O4 nanoparticle ferrites by sol–gel auto-combustion method, Mater. Lett., 61, 84 (2007) 5. Ahmed M.A. and El-Sayed M.M., J. Magn. Magn. Mater., Magnetic characterization and thermoelectric power of Ni 1−yZn y

  • Nitrogen-doped carbon nanotubes with high activity for ...

    2012-6-17  Preparation and characterization of electrochemical properties of air cathode. Int J Hydrogen Energ 2004;29:135e43. [19] Yang CC, Hsu ST, Chien WC, Shih MC, Chiu SJ, Lee KT, et al. Electrochemical properties of air electrodes based on MnO2 catalysts supported on binary carbons.

  • The Sol-Gel-Derived Nickel-Cobalt Oxides with High ...

    Electrode preparation. 70 wt % of the prepared active Ni/Co oxide powder, 25 wt % of acetylene black, and 5 wt % of polytetrafluoroethylene (PTFE) were mixed together in ethanol, and ultrasonic was used to ensure uniform mixing. ... However, XPS characterization of our samples does not show obvious difference in the peak positions for Co and Ni ...

  • Nickel-cobalt coated reduced graphene oxide electrode for ...

    2015-5-4  Preparation of Ni-Co NSs/RGO/GCE The GCE of 3.0 mm in diameter was polished carefully with 1.0, 0.3 and 0.05 ?m alumina powder on felt pads, and then ultrasonically cleaned in water. To obtain the RGO modi?ed GCE, 10 ?L 0.01 mg mL?1 suspension of RGO was transferred onto a polished GCE surface, and then the solvent was evaporated in air.

  • Amorphous nickel-cobalt complexes hybridized with

    Synthesis and characterization of PHNCMs. ... Preparation of samples for HER and OER electrocatalysis. 5 mg of the active material and 1 mg of pure carbon (Vulcan XC72) were added into 0.95 ml of ...

  • Acta Physico-Chimica Sinica

    2020-5-12  Preparation of Silver Doped TiO 2 Hollow Nanoparticles and Characterization of Their Structures and Photocatalytic Properties JI Ping-Li, WANG Jin-Gang, ZHU Xiao-Li, KONG Xiang-Zheng Anionic polystyrene (PSt) latex particles were synthesized by emulsion polymerization of methacrylic acid and styrene (S ...

  • Effect of Cobalt Concentration on the Microstructure

    Nickel-cobalt alloy deposits were prepared on copper substrate by electrochemical deposition at various cobalt concentrations in electrolytic solution of 0, 6, 12, 18 and 24 g l-1. The deposition was performed at current density of 30 mA/cm2. X-ray diffraction measurements confirmed that all nickel-cobalt alloy films formed have face-centered cubic structure.

  • Nickel-cobalt hydroxide nanosheets: Synthesis,

    2017-8-1  This paper reports the synthesis, characterization, and electrochemical performance of nickel-cobalt hydroxide nanosheets. The hydroxide nanosheets of approximately 0.7nm thickness were prepared by delamination of layered nickel-cobalt hydroxide lactate in water and formed transparent colloids that were stable for months.

  • 3D nickel-cobalt phosphide heterostructure for high ...

    Fig. 1a presents the schematic preparation of 3D heterogeneous Ni–Co–P microflowers.At the first step, equal amount of Ni 2+ and Co 2+ salts reacted with OH − from urea hydrolysis to generate the Ni–Co–OH precursor by hydrothermal co-precipitation reaction. At the second step, Ni–Co–OH was phosphated into Ni–Co–P using NaH 2 PO 2 H 2 O as phosphorus source by the anion ...

  • Synthesis and Characterization of Iron Oxide

    2014-6-19  Iron oxide nanoparticles supported on zirconia were prepared by precipitation-deposition method and characterized by XRD, SEM, FT-IR, TGA/DTA, surface area and particle size analysis. Catalytic activities of the catalysts were tested in the gas-phase conversion of cyclohexanol in a fixed-bed flow type, Pyrex glass reactor, at 433 - 463 K. Major detected products were cyclohexanone,

  • Journal of Chemical and Pharmaceutical Research, 2015,

    2016-10-6  adsorbent [26-28]. In the present study, solution combustion method has been employed for the preparation of ferrite materials and various physico-chemical techniques are used for characterization. EXPERIMENTAL SECTION Cobalt substituted nickel ferrites having composition Ni 1-x Co x Fe 2O4 (where x =0, 0.1, 0.3, 0.5) were synthesized by

  • Additive effect of Ce, Mo and K to nickel-cobalt aluminate ...

    2013-12-27  1. Sample Preparation and Characterization The fabrication of Ni-YSZ- or Ni-CoAl2 O4 supported cells has been described in detail in previous work [10]. NiO-YSZ and NiO-CoAl2 O4 supports were prepared by mixing YSZ and CoAl2 O4 pow-der with

  • Improved sensing of dopamine and ascorbic acid

    We report on the preparation of a nanocomposite by an electrochemical redox reaction in which graphene oxide is reduced to graphene while nickel-cobalt hexacyanoferrate (III) microparticles are simultaneously formed by oxidation. The microparticles deposit uniformly on the surface of graphene sheets, and the resulting nanocomposite was characterized by scanning electron microscopy, energy ...

  • Enhanced structural stability of nickel-cobalt hydroxide ...

    2019-5-26  Characterization of the materials. The morphology of the samples was studied by field emission scanning electron microscopy (FESEM, JSM-6700F) and high-resolution transmission electron microscopy (HRTEM, JEM-2100F). X-ray diffraction (XRD) analysis was performed using an X′pert PRO X-ray diffractometer

  • e a t e s DOI; l o a f Engien Journal of Material Sciences ...

    2020-1-29  preparation of the nano particles of nickel oxide, cobalt oxide and their . composites. Both the individual nano oxides and the composites were prepared by the co- precipitation method. Nickel nitrate hexahydrate, cobalt nitrate hexahydrate, and sodium hydroxide were used as starting materials.Citric acid was used as stabilizer.

  • e a t e s DOI; l o a f Engien Journal of Material Sciences ...

    2020-1-29  preparation of the nano particles of nickel oxide, cobalt oxide and their . composites. Both the individual nano oxides and the composites were prepared by the co- precipitation method. Nickel nitrate hexahydrate, cobalt nitrate hexahydrate, and sodium hydroxide were used as starting materials.Citric acid was used as stabilizer.

  • Review of Modified Nickel-Cobalt Lithium Aluminate

    2019-12-29  Review Article Review of Modified Nickel-Cobalt Lithium Aluminate Cathode Materials for Lithium-Ion Batteries Ding Wang,1 Weihong Liu,1 Xuhong Zhang,2 Yue Huang,1 Mingbiao Xu ,1,2 and Wei Xiao 3 1School of Petroleum Engineering, Yangtze University, Wuhan 430100, China 2Jingzhou Jiahua Technology Co. Ltd., Jingzhou 434000, China 3School of Chemistry and Environmental

  • Review of Modified Nickel-Cobalt Lithium Aluminate

    The characterization results show that the assembled battery can present excellent physicochemical and battery performance. Between 4.3 and 3 V at a constant current of 55.6 mA/g at 25°C, the NCA delivers a capacity of 172 mAh g -1 with a capacity retention of 91%, while the NCA-graphene composite shows a capacity of 180 mAh g -1 with a ...

  • Precipitation Of Nickel−Cobalt Sulfide - PDF Free

    Chapter 12 Precipitation Of Nickel Cobalt Sulfide The leaching of laterite in an autoclave at about 250 C was described in Chapter 11. The pregnant solution in the slurry leaving these autoclaves contains approximately 6 g/L Ni and 0.5 g/L Co. Currently, most industrial operations recover the nickel and cobalt from the autoclave leach solution by the precipitation of mixed nickel cobalt sulfides.

  • Layered Nickel-Cobalt Oxide Coatings on Stainless

    In this work, we have obtained spinel-type nickel-cobalt oxide nanostructures on low-cost and easy-handling AISI304-type stainless steel substrate via simple potentiostatic electrodeposition. Nickel...

  • Corrosion resistance and microstructure of ...

    Corrosion resistance and microstructure of electrodeposited nickel-cobalt alloy coatings. Corrosion resistance and microstructure of electrodeposited nickel-cobalt alloy coatings, Meenu Srivastava, V. Ezhilselvi, V. K. William Grips, K. S. Rajam, Surface and Coatings Technology, 201 (2006) 3051-3060, doi: 10.1016/j.surfcoat.2006.06.017

  • Synthesis and remarkable capacitive performance of

    2017-9-11  4 nanoplates with a specific capacitance of 437.0 F g−1 at a charge-discharge current density of 1.0 A g−1 [13]. Yu et al.reported Ni xCo3-xS4 hollow nanoprisms with a specific capacitance of 895.2 F g-1 at 1.0 A g-1 [15]. Wan et al. reported NiCo2S4 porous nanotubes with a specific capacitance of 933.0 F g-1 at 1.0 A g-1 [18]. However, the electrochemical performance of these

  • Intrinsic energy-storage mechanism of low crystallinity ...

    NiCo 2 S 4 (NCS) is a ternary spinel sulfide widely applied in supercapacitors and hybrid supercapacitors. Several electrochemical reaction formulas have so far been proposed in last decade. However, the energy storage mechanism and electrochemical behavior of NCS in alkaline electrolytes are still not fully understood. In this study, the interactions between hydroxide and NCS with low ...

  • Nickel-Cobalt Double Hydroxide Decorated Carbon

    In this work, we present a facile technique based on electrophoretic deposition (EPD) to produce transition metal hydroxide decorated carbon nanotubes (CNT) for electrochemical applications. We specifically explore the performance of nickel-cobalt hydroxides given their high activity, conductivity and stability as compared to the individual hydroxides.

  • Hydrothermal synthesized urchin-like nickel-cobalt ...

    2019-12-18  Hydrothermal synthesized urchin-like nickel-cobalt carbonate hollow spheres for sensitive amperometric detection of nitrite Shun Lu a, b, Chi Yang a, *, Ming Nie b, ** a Yale-NUIST Center on Atmospheric Environment, Nanjing University of Information Science and Technology, Nanjing 210044, China b Faculty of Materials and Energy, Southwest University, Chongqing 400715, China