scholarly journals Progress in Electrodeposition of Zinc and Zinc Nickel Alloys Using Ionic Liquids

2020 ◽  
Vol 10 (15) ◽  
pp. 5321
Author(s):  
Kranthi Kumar Maniam ◽  
Shiladitya Paul

Zinc (Zn) and zinc–nickel (Zn–Ni) electrodeposition has been widely used in many industries, such as automotive and aerospace, for corrosion protection of steel components owing to their excellent corrosion resistance. Conventional zinc and zinc–nickel electrodeposition is performed in different types of aqueous baths (acid and alkaline). Such electrolytes suffer from certain drawbacks such as hydrogen gas evolution, low coulombic efficiencies, and environmental toxicity. Electrodeposition of Zn and Zn–Ni alloys from ionic liquids has gained significant attention in aerospace and automotive sectors owing to the different environments they provide for electrodeposition. This paper reviews the progress in deposition of zinc and zinc-nickel alloys in non-aqueous systems, especially ionic liquids. In addition, the challenges and technological developments associated with the Zn and Zn–Ni deposition on different substrates and the factors that need to be considered while electroplating at an industrial scale are discussed.

RSC Advances ◽  
2016 ◽  
Vol 6 (91) ◽  
pp. 88469-88485 ◽  
Author(s):  
Zhongbao Feng ◽  
Lili Ren ◽  
Jinqiu Zhang ◽  
Peixia Yang ◽  
Maozhong An

Bright Zn–Ni alloys can be obtained from the bath with additives. The mechanism of better corrosion resistance of bright Zn–Ni alloys compared to dull Zn–Ni alloys was analyzed by XPS and EIS.


Author(s):  
Dmitrii V. Burliaev ◽  
Oleg A. Kozaderov ◽  
Polina Volovitch

A review of the literature is devoted to the patterns of the electrodeposition of zinc-nickel alloys including the kinetics of cathodic reduction of zinc, nickel, and zinc-nickel alloys in ammonium chloride, sulphate, and glycinate deposition electrolytes. We studied the data on the effectiveness of the corrosion resistance of zinc-nickel coatings and summarised the principal patterns of selective dissolution of the Zn-Ni alloys. The role of the addition of glycine to an ammonium chloride deposition electrolyte was determined in the modification of the morphological and anticorrosive properties of the coatings.


Author(s):  
Ji-Ming Yu ◽  
Ji-Peng Yu ◽  
Ning Wang ◽  
Lu-Lu Xiao ◽  
Huan Wang ◽  
...  

2021 ◽  
Vol 7 (3) ◽  
pp. 50
Author(s):  
Emmi Välimäki ◽  
Lasse Yli-Varo ◽  
Henrik Romar ◽  
Ulla Lassi

The hydrogen economy will play a key role in future energy systems. Several thermal and catalytic methods for hydrogen production have been presented. In this review, methane thermocatalytic and thermal decomposition into hydrogen gas and solid carbon are considered. These processes, known as the thermal decomposition of methane (TDM) and thermocatalytic decomposition (TCD) of methane, respectively, appear to have the greatest potential for hydrogen production. In particular, the focus is on the different types and properties of carbons formed during the decomposition processes. The applications for carbons are also investigated.


2018 ◽  
Vol 60 (5) ◽  
pp. 598-611 ◽  
Author(s):  
V. V. Shevchenko ◽  
M. A. Gumennaya ◽  
A. V. Stryutsky ◽  
N. S. Klimenko ◽  
V. V. Trachevskii ◽  
...  

2017 ◽  
Vol 46 (35) ◽  
pp. 11884-11889 ◽  
Author(s):  
Kang-kang Sun ◽  
Guo-ping Lu ◽  
Jia-wei Zhang ◽  
Chun Cai

β-O-4 and α-O-4 linkages can be selectively cleaved by Pd–Ni bimetallic nanoparticles in ionic liquids using hydrogen gas as the hydrogen donor under ambient pressure and neutral conditions.


e-Polymers ◽  
2021 ◽  
Vol 21 (1) ◽  
pp. 869-880
Author(s):  
Ahmad Adlie Shamsuri ◽  
Khalina Abdan ◽  
Siti Nurul Ain Md. Jamil

Abstract An improvement of ecological conscience currently has increased the consciousness of researchers in reducing the processing time and cost of solvent for the dissolution of cellulose. Latterly, ionic liquids have been employed to process cellulose as they are recyclable and nonvolatile. Besides that, biopolymers such as chitosan, chitin, starch, protein, and cellulose acetate can also be processed by using ionic liquids for diverse applications. In this short review, examples of imidazolium-based ionic liquids that are commonly used for the dissolution of cellulose are implied. Furthermore, examples of organic liquids that are utilized as co-solvents for ionic liquids were revealed. In addition, examples of imidazolium-based ionic liquid/co-solvent mixtures utilized in the dissolution of cellulose and other biopolymers are also demonstrated. The properties and applications of cellulose and its blends regenerated from different types of cellulose/imidazolium-based ionic liquid/co-solvent solutions are also shortly reviewed. The information acquired from this review gives a better understanding of the changes in the properties of regenerated cellulose and regenerated cellulose blends. In addition, this short review serves as a model basis for the creation of novel applications of regenerated cellulose and regenerated cellulose blends by utilizing imidazolium-based ionic liquid/co-solvent mixtures.


2007 ◽  
Vol 85 (5) ◽  
pp. 245-253 ◽  
Author(s):  
Tolumoye J. Tuaweri ◽  
G. D. Wilcox

Author(s):  
D. Jain ◽  
M. Chatterjee ◽  
A. Unemori ◽  
N. Thangam

Abstract The pipe routing problem, wherein layout of one or more pipes has to be decided in a 3-dimensional space while satisfying several different types of constraints, has attracted significant attention recently. This paper describes a knowledge-based automated pipe routing system which generates practical routes that meet several diverse criteria. The system employs intelligent search (with embedded design constraints) upon a compact representation of the free space in a facility, thus avoiding expensive interference checks and adjustments that must be performed in some of the other systems.


2021 ◽  
Vol MA2021-01 (18) ◽  
pp. 799-799
Author(s):  
Roberto Bernasconi ◽  
Fatma Godze Firtin ◽  
Buse Kahyaoglu ◽  
Luca Nobili ◽  
Luca Magagnin

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