Nickel-cobalt alloy coatings prepared by electrodeposition Part II: Morphology, structure, microhardness, and electrochemical studies

2021 ◽  
Vol 38 (1) ◽  
pp. 152-162
Author(s):  
Rasha Muneer Al Radadi ◽  
Magdy Ahmed Mahmoud Ibrahim
Keyword(s):  
Electrochemical Studies ◽  
Cobalt Alloy ◽  
Nickel Cobalt

Nickel–cobalt alloy doping phosphorus as advanced electrocatalyst for hydrazine oxidation

2019 ◽  
Vol 807 ◽  
pp. 151648 ◽  
Author(s):  
Bing Liang ◽  
Yahui Wang ◽  
Xianyi Liu ◽  
Ting Tan ◽  
Linwei Zhang ◽  
...  
Keyword(s):  
Cobalt Alloy ◽  
Nickel Cobalt ◽  
Hydrazine Oxidation

On the Role of Support in Metallic Heterogeneous Catalysis: A Study of Unsupported Nickel–Cobalt Alloy Nanoparticles in Ethanol Steam Reforming

2019 ◽  
Vol 149 (4) ◽  
pp. 929-941 ◽  
Author(s):  
Gabriella Garbarino ◽  
Tullio Cavattoni ◽  
Paola Riani ◽  
Rosaria Brescia ◽  
Fabio Canepa ◽  
...  
Keyword(s):  
Heterogeneous Catalysis ◽  
Steam Reforming ◽  
Ethanol Steam Reforming ◽  
Alloy Nanoparticles ◽  
Cobalt Alloy ◽  
Nickel Cobalt ◽  
Ethanol Steam

Investigation on Carbonsphere@Nickel Cobalt Sulfide Core-shell Nanocomposite for Asymmetric Supercapacitor Application

2019 ◽  
Vol 6 (1-2) ◽  
pp. 1-13
Author(s):  
A. Simon Justin ◽  
P. Vickraman ◽  
B. Joji Reddy
Keyword(s):  
Metal Sulfide ◽  
High Energy ◽  
High Energy Density ◽  
Cobalt Sulfide ◽  
Core Shell ◽  
Carbon Sphere ◽  
Asymmetric Supercapacitor ◽  
Electrochemical Studies ◽  
The Core ◽  
Nickel Cobalt

Abstract The carbon sphere (CS)@nickel cobalt sulfide core-shell nanocomposite at five different mole ratios have been synthesized by a facile low-temperature water-bath method without any thermal treatment. The XRD results on CS, NiCo2S4 and its ternary complexation confirms nanocomposite formation which matches with the cubic structure. The FTIR confirms the complexation of CS and metal-sulfide core-shell. TEM morphology shows CS at NiCo2S4 forming a core-shell which appears as interlinked bunch of grapes. The BET surface analysis observes the high surface area for the core-shell. The XPS studies confirm the elemental presence and valence states of metal composition of the core-shell. Electrochemical studies on the pure NiCo2S4 and CS@NiCo2S4 have shown that CS@NiCo2S4 in 1:1 ratio (scn2) only exhibits higher specific capacitance of 838 F g−1 at 1 A g−1 with capacity retention of 89 % for 5000 cycles than other mole ratios. Using this scn2, asymmetric supercapacitor (ASC) device fabrication has been studied. The electrochemical studies on ASC reveal high energy density of 101 Wh kg−1 with the power density of 6.3 k W kg−1, and having good cycling stability with 92 % of capacitance retention even after 3000 cycles at 20 A g−1.

Influence of aminoacetic acid on the electrodeposition of zinc-nickel-cobalt alloy

2020 ◽  
Vol 28 (1) ◽  
pp. 42-49
Author(s):  
Elena Viktorovna Chentsova ◽  
Svetlana Yur'evna Pochkina ◽  
Nina Dmitrievna Solovyova
Keyword(s):  
Cobalt Alloy ◽  
Aminoacetic Acid ◽  
Nickel Cobalt ◽  
Zinc Nickel
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