Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Formation of Complex Ions03:45

Formation of Complex Ions

23.9K
A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...
23.9K
Standard Electrode Potentials03:02

Standard Electrode Potentials

44.8K
On comparing the reactivity of silver and lead, it is observed that the two ionic species, Ag+ (aq) and Pb2+ (aq), show a difference in their redox reactivity towards copper: the silver ion undergoes spontaneous reduction, while the lead ion does not. This relative redox activity can be easily quantified in electrochemical cells by a property called cell potential. This property is commonly known as cell voltage in electrochemistry, and it is a measure of the energy which accompanies the charge...
44.8K
Ionic Crystal Structures02:42

Ionic Crystal Structures

14.6K
Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
14.6K
Ionic Bonding and Electron Transfer02:48

Ionic Bonding and Electron Transfer

42.0K
Ions are atoms or molecules bearing an electrical charge. A cation (a positive ion) forms when a neutral atom loses one or more electrons from its valence shell, and an anion (a negative ion) forms when a neutral atom gains one or more electrons in its valence shell. Compounds composed of ions are called ionic compounds (or salts), and their constituent ions are held together by ionic bonds: electrostatic forces of attraction between oppositely charged cations and anions. 
42.0K
Extraction: Advanced Methods00:56

Extraction: Advanced Methods

510
Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
510
EDTA: Auxiliary Complexing Reagents01:26

EDTA: Auxiliary Complexing Reagents

649
EDTA titrations are usually carried out in highly basic conditions, where the fully deprotonated form of EDTA, Y4−, actively complexes with the free metal ions in the solution. Several metal ions precipitate as hydrous oxide (hydroxides, oxides, or oxyhydroxides) under these conditions, lowering the concentration of free metal ions in the solution. For this reason, auxiliary complexing agents or ligands such as ammonia, tartrate, citrate, or triethanolamine are used in EDTA titrations to...
649

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Dynamic Solvation Structure Regulation Enables Long-Life Li-Organic Batteries.

Journal of the American Chemical Society·2026
Same author

Coherent twins for manufacturing thick lithium-rich battery positive electrodes.

Nature nanotechnology·2026
Same author

Electrosynthesis of Chlorine Oxidant From Direct Seawater Electrolysis via High-Entropy Intermetallic.

Chemistry, an Asian journal·2026
Same author

Layered Copper-Anthraquinone Coordination Polymer Cathode Leveraging Dual-Redox Sites and Facilitated Ion Diffusion for High-Performance Lithium-Ion Batteries.

Angewandte Chemie (International ed. in English)·2026
Same author

Aggregation-Induced Emission (AIE) Probe-Labeled Nanotheranostics: A Mini-Review.

Pharmaceuticals (Basel, Switzerland)·2026
Same author

Activating bulk S/Se/Te positive electrodes by acidic binder-induced Cu corrosion for wide-temperature Na-Chalcogen batteries.

Nature communications·2026

Related Experiment Video

Updated: Aug 27, 2025

Zinc-Sponge Battery Electrodes that Suppress Dendrites
06:58

Zinc-Sponge Battery Electrodes that Suppress Dendrites

Published on: September 29, 2020

4.4K

Halogenated Zn2+ Solvation Structure for Reversible Zn Metal Batteries.

Qiu Zhang1, Yilin Ma1, Yong Lu1

  • 1Renewable Energy Conversion and Storage Center (RECAST), Haihe Laboratory of Sustainable Chemical Transformations, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin 300071, China.

Journal of the American Chemical Society
|September 28, 2022
PubMed
Summary

Introducing halogen ions into electrolytes suppresses dendrite growth and hydrogen evolution in rechargeable aqueous zinc batteries. This strategy enhances zinc metal anode reversibility and battery performance for safer, cost-effective energy storage.

More Related Videos

Elemental-sensitive Detection of the Chemistry in Batteries through Soft X-ray Absorption Spectroscopy and Resonant Inelastic X-ray Scattering
07:55

Elemental-sensitive Detection of the Chemistry in Batteries through Soft X-ray Absorption Spectroscopy and Resonant Inelastic X-ray Scattering

Published on: April 17, 2018

12.8K
Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
11:04

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Published on: December 20, 2016

13.1K

Related Experiment Videos

Last Updated: Aug 27, 2025

Zinc-Sponge Battery Electrodes that Suppress Dendrites
06:58

Zinc-Sponge Battery Electrodes that Suppress Dendrites

Published on: September 29, 2020

4.4K
Elemental-sensitive Detection of the Chemistry in Batteries through Soft X-ray Absorption Spectroscopy and Resonant Inelastic X-ray Scattering
07:55

Elemental-sensitive Detection of the Chemistry in Batteries through Soft X-ray Absorption Spectroscopy and Resonant Inelastic X-ray Scattering

Published on: April 17, 2018

12.8K
Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
11:04

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Published on: December 20, 2016

13.1K

Area of Science:

  • Electrochemistry
  • Materials Science

Background:

  • Rechargeable aqueous zinc metal batteries offer safe and affordable large-scale energy storage.
  • Challenges include zinc anode dendritic growth and hydrogen evolution reaction (HER), hindering performance.

Purpose of the Study:

  • To address dendritic growth and HER in zinc anodes.
  • To enhance the stability and efficiency of aqueous zinc batteries.

Main Methods:

  • Designing a novel electrolyte with zinc acetate and ammonium halide.
  • Introducing iodide ions (I-) to modify the Zn2+ solvation structure.
  • Constructing zinc-iodine batteries with a carbon felt-polyaniline cathode.

Main Results:

  • The modified electrolyte suppressed HER and dendritic growth.
  • Achieved high initial coulombic efficiency (CE) of 99.3% for Zn plating/stripping.
  • Developed Zn-I batteries with 98.6% average CE and no capacity decay over 300 cycles.

Conclusions:

  • Halogenated Zn2+ solvation structures offer a viable strategy for stable zinc metal anodes.
  • This electrolyte design enhances the reversibility and cycle life of aqueous zinc batteries.
  • Provides a general approach for developing high-performance zinc-based energy storage systems.