Influence of additives on morphology, orientation and anti-corrosion property of bright zinc electrodeposit

Onkarappa, Nayana K.; Satyanarayana, Jeevan Chakravarthy A.; Suresh, HariPrasad; Malingappa, Pandurangappa

doi:10.1016/j.surfcoat.2020.126062

Cited by 15 publications

(5 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, it can be seen that (100) and (110) are the preferred orientation of the nanocrystalline zinc coating. When the current density is 0.5 A/dm 2 , it is obvious that both (100) and (110) are the preferred, which is useful to obtain a nanocrystalline zinc coating with smaller surface roughness and superior anticorrosion properties [ 17 ].…”

Section: Resultsmentioning

confidence: 99%

Investigation on the Electrochemical Deposition of Nanocrystalline Zinc with Cationic Polyacrylamide (CPAM)-ZnSO4 Electrolyte

Chen

Zhu

et al. 2021

Micromachines

View full text Add to dashboard Cite

The electrochemical deposition of nanocrystalline zinc has high potential to deposit zinc coatings, which have improved wear and corrosion properties compared to conventional coating methods. Conventionally, two or more additives are used in the electrolyte for the formation nanocrystalline zinc; these electrolyte components are complex, and their maintenance is inconvenient, making it unstable and not suitable for industrial scale production. This paper proposes an electrochemical deposition technique for nanocrystalline zinc using a ZnSO4 solution with cationic polyacrylamide (CPAM) as the unique additive. The results reveal that the cationic degree of CPAM has a significant influence on the deposition process and that the cationic degree of 20% enhances the electrolyte conductivity and improves the density of the deposited coating. The concentration of CPAM affects the electrolyte viscosity and conductivity. CPAM with a concentration of 20 g/L could simultaneously improve the electrolyte conductivity and maintain the viscosity at a low value, which promotes the formation of a bright deposited coating with a grain size of 87 nm. Additionally, the current density affects the grain structure of the deposited coating. With a current density of 0.5 A/dm2, a dense coating with lamellar grains and a grain size of 54.5 nm was obtained, which has, and the surface roughness was reduced to 0.162 μm. Moreover, the corrosion resistant property of the deposited coating was also improved.

show abstract

Section: Resultsmentioning

confidence: 99%

Investigation on the Electrochemical Deposition of Nanocrystalline Zinc with Cationic Polyacrylamide (CPAM)-ZnSO4 Electrolyte

Chen

Zhu

et al. 2021

Micromachines

View full text Add to dashboard Cite

show abstract

“…Nonpolar alkane possesses no polar functional groups, making it a superior stable substance against lithium metal, which can be applied to store alkaline metal. − Inspired by these qualities, Bao et al proposed to add nonpolar alkane n -hexane, which possesses a similar chemical structure with mineral oil yet has a lower molecular weight and viscosity, in lithium salt-containing ether solvents as a cosolvent to alter the solvation structure of Li + (Figure d) . When hexane was added to the electrolyte, it could enrich the top of the growing nuclei and suppress the fiberlike lithium to grow further with its nonconductivity; this could ultimately lead to smooth deposition.…”

Section: Nonreactive Additivesmentioning

confidence: 99%

Nonreactive Electrolyte Additives for Stable Lithium Metal Anodes

Cui

Luo

et al. 2022

ACS Appl. Energy Mater.

View full text Add to dashboard Cite

Rechargeable lithium metal batteries have been considered an attractive power source to satisfy the demand for the high energy density of next-generation portable electronics and electric vehicles. Nevertheless, safety hazards originating from its huge volume fluctuation, severe side reactions, and dendrite growth have long bottlenecked their practical applications. Optimizing a liquid electrolyte system by functional additives leads to a remarkably enhanced electrochemical performance by in situ regulating the electrodeposition behavior. In recent years, various nonreactive additives have been tested with significantly distinct principles and brilliant results, broadening the frontier of the research area of additives. Herein, the current progress in optimizing liquid electrolyte systems with nonreactive additives is discussed and analyzed in detail in terms of molecules, nanoparticles, and 2D materials. Finally, perspectives for its future development and vital unsolved questions concerning its commercialization are provided.

show abstract

“…[42][43][44] The battery is based on a reversible solid-to-solid conversion mechanism between sulfur and ZnS (discharged product) as shown in Equation 1 which provides a polysulfide-free system. [40] S + Zn 2+ + 2e − ⇆ ZnS (1) But, the critical challenge in Zn─S batteries are that they suffer from limited performance due to the corrosion of Zn metal, dendritic growth, the insulating nature of sulfur (10 −7 S cm −1 ), [32,45,46] the solid-solid conversion leading to sluggish kinetics for conversion reaction, and huge polarization accompanying the poor wettability of the sulfur electrode in aqueous media. For example, Luo et al utilized 1 m ZnCl 2 electrolyte with sulfur incorporated in carbon as a cathode but observed poor stability because of Zn corrosion in a chosen aqueous electrolyte.…”

Section: Introductionmentioning

confidence: 99%

Unleashing Ultrahigh Capacity and Lasting Stability: Aqueous Zinc‐Sulfur Batteries

Mehta,

Kaur,

Singh

et al. 2024

Advanced Energy Materials

View full text Add to dashboard Cite

Despite of multifarious dominance of sulfur‐based batteries, polysulfide‐shuttling and use of high‐cost organic electrolytes with flammability risks hinder their applicability as commercial devices. Herein a polysulfide‐free aqueous zinc‐sulfur (Zn─S) rechargeable battery is explored, which offers a low‐cost and environmentally friendly energy storage system being Zn and Sulfur (S) highly abundant with high theoretical capacity. However, the stability of Zn anode is quite challenging due to dendritic growth and corrosion leading to the capacity decay. This work showcases the utilization of ethylene glycol (EG) and iodine (I2) as an electrolyte additive in aqueous zinc acetate [Zn(OAc)2] electrolyte for stabilizing the Zn─S battery performance. EG as an additive is able to mitigate the corrosion rate of the Zn electrode by 15 times which is supported by molecular dynamics simulation. The assembled Zn─S battery delivered an outstanding capacity of 1210 mA h g−1 at 0.1 C with a 91% capacity retention even after 250 cycles, along with remarkable reversible prolonged cycling stability of 3000 cycles at 1 C, with 64.5% capacity retention. More importantly, in situ electrochemical Raman spectroscopy is utilized to monitor the real‐time formation of zinc sulfide (ZnS) as a single discharge product and simultaneously debunking the polysulfide shuttling in the system which is further supported by XPS, UV‐Vis and IR spectroscopy.

show abstract

Influence of additives on morphology, orientation and anti-corrosion property of bright zinc electrodeposit

Cited by 15 publications

References 52 publications

Investigation on the Electrochemical Deposition of Nanocrystalline Zinc with Cationic Polyacrylamide (CPAM)-ZnSO4 Electrolyte

Investigation on the Electrochemical Deposition of Nanocrystalline Zinc with Cationic Polyacrylamide (CPAM)-ZnSO4 Electrolyte

Nonreactive Electrolyte Additives for Stable Lithium Metal Anodes

Unleashing Ultrahigh Capacity and Lasting Stability: Aqueous Zinc‐Sulfur Batteries

Contact Info

Product

Resources

About