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

Redox Titration: Other Oxidizing and Reducing Agents01:26

Redox Titration: Other Oxidizing and Reducing Agents

356
Besides iodine, other oxidizing or reducing agents can serve as titrants in redox titrations. Common oxidizing titrants include KMnO4, cerium(IV), and K2Cr2O7. The choice of oxidizing titrants depends on factors like stability, cost, analyte strength, and reaction rate between the analyte and titrant. KMnO4 is a strong oxidizing titrant that reduces from Mn(VII) to Mn(II) in a highly acidic solution, simultaneously oxidizing the analyte to a higher oxidation state. In this case, KMnO4 acts as a...
356
Redox Equilibria: Overview01:23

Redox Equilibria: Overview

605
A reduction-oxidation reaction is commonly called a redox reaction. In a redox reaction, electrons are transferred from one species to another rather than being shared between or among atoms. The reducing agent or reductant is the species that loses electrons and gets oxidized in the process. The species that gains electrons and gets reduced in the process is the oxidizing agent or oxidant. Redox reactions are represented as two separate equations called half-reactions, where one equation...
605
Redox Titration: Overview01:21

Redox Titration: Overview

3.2K
Redox titration is a chemical analysis technique used to determine the concentration of an unknown substance by measuring the electron transfer in a redox (reduction-oxidation) reaction. The process involves gradually adding a titrant with a known concentration of an oxidizing or reducing agent, to the analyte, the solution with an unknown concentration, until reaching the endpoint, which indicates the completion of the reaction between the two substances. Ensuring the analyte is in a single...
3.2K
Ladder Diagrams: Redox Equilibria01:30

Ladder Diagrams: Redox Equilibria

501
Ladder diagrams are useful tools for understanding redox equilibrium reactions, especially the effects of concentration changes on the electrochemical potential of the reaction. The vertical axis in the redox ladder diagrams represents the electrochemical potential, E. The area of predominance is demarcated using the Nernst equation.
Consider the Fe3+/Fe2+ half-reaction, which has a standard-state potential of +0.771 V. At potentials more positive than +0.771 V, Fe3+ predominates, whereas Fe2+...
501
Oxidation-Reduction Reactions03:11

Oxidation-Reduction Reactions

65.4K
Oxidation–Reduction Reactions
65.4K
Oxidation Numbers03:14

Oxidation Numbers

37.5K
In redox reactions, the transfer of electrons occurs between reacting species. Electron transfer is described by a hypothetical number called the oxidation number (or oxidation state). It represents the effective charge of an atom or element, which is assigned using a set of rules.
37.5K

You might also read

Related Articles

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

Sort by
Same author

Strain-Responsive and Self-Healing Chiral Polymer Vitrimer Composites: Tunable Circular Dichroism and Mechanochromic Recovery in Self-Standing Films.

ACS applied materials & interfaces·2026
Same author

Two-dimensional talc as a natural abundant ultra-broadband hyperbolic material.

Nanoscale·2025
Same author

Interplay of Energy and Charge Transfer in WSe<sub>2</sub>/CrSBr Heterostructures.

Nano letters·2025
Same author

Enhanced Light Emission in MoSe<sub>2</sub>-WSe<sub>2</sub> Lateral Heterostructures in the Electron-Hole Plasma Regime.

The journal of physical chemistry letters·2025
Same author

Magnetically Tunable Polariton Cavities in van der Waals Heterostructures.

Nano letters·2025
Same author

Synthesis, redox exfoliation, and magnetic nanoparticle decoration of VSe<sub>2</sub> and SnSe<sub>2</sub> nanosheets.

Nanoscale advances·2025

Related Experiment Video

Updated: Aug 6, 2025

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
06:53

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks

Published on: June 9, 2023

2.0K

Redox exfoliated NbS2: characterization, stability, and oxidation.

Danilo A Nagaoka1,2, Daniel Grasseschi3, Alisson R Cadore1

  • 1School of Engineering, Mackenzie Presbyterian University, Sao Paulo - 01302-907, Brazil. cjsdematos@mackenzie.br.

Physical Chemistry Chemical Physics : PCCP
|March 20, 2023
PubMed
Summary
This summary is machine-generated.

Researchers characterized redox-exfoliated niobium disulfide (NbS2) nanoflakes, revealing their structural properties and stability in oxygen-rich environments. Understanding NbS2 stability is crucial for its application in catalysis and electronics.

More Related Videos

Author Spotlight: Tracking Electrochemistry on Single Nanoparticles with Surface-Enhanced Raman Scattering Spectroscopy and Microscopy
10:59

Author Spotlight: Tracking Electrochemistry on Single Nanoparticles with Surface-Enhanced Raman Scattering Spectroscopy and Microscopy

Published on: May 12, 2023

2.8K
Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
10:57

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction

Published on: April 10, 2018

18.3K

Related Experiment Videos

Last Updated: Aug 6, 2025

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
06:53

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks

Published on: June 9, 2023

2.0K
Author Spotlight: Tracking Electrochemistry on Single Nanoparticles with Surface-Enhanced Raman Scattering Spectroscopy and Microscopy
10:59

Author Spotlight: Tracking Electrochemistry on Single Nanoparticles with Surface-Enhanced Raman Scattering Spectroscopy and Microscopy

Published on: May 12, 2023

2.8K
Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
10:57

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction

Published on: April 10, 2018

18.3K

Area of Science:

  • Materials Science
  • Surface Chemistry
  • Condensed Matter Physics

Background:

  • Niobium disulfide (NbS2) is a layered transition metal dichalcogenide with potential applications in catalysis and as a two-dimensional material.
  • Few-layer NbS2 synthesis is challenging, and its stability in ambient conditions requires thorough investigation before practical applications.
  • Understanding the material's characteristics and atmospheric stability is essential for harnessing its superconducting and catalytic properties.

Purpose of the Study:

  • To characterize the structure and stability of redox-exfoliated NbS2 nanoflakes in an oxygen-rich environment.
  • To identify oxide species formed on NbS2 and analyze its degradation pathways in air.
  • To provide insights into the interaction mechanisms between NbS2 and oxygen, supported by theoretical calculations.

Main Methods:

  • Redox exfoliation was used to obtain NbS2 nanoflakes.
  • Comprehensive characterization using structural, morphological, and spectroscopic techniques.
  • Density-functional theory (DFT) calculations to model reaction pathways.

Main Results:

  • Distinct oxidation processes were identified through various characterization methods.
  • Oxide species on NbS2 were identified, indicating surface degradation.
  • The stability of NbS2 nanosheets in air was analyzed, and likely reaction pathways with oxygen were proposed.
  • Experimental findings were consistent with DFT predictions.

Conclusions:

  • The study provides a detailed understanding of the oxidation processes and stability of NbS2 nanoflakes in air.
  • Identifying oxide species and reaction pathways is critical for controlling the material's properties.
  • Mastering the stability of layered materials like NbS2 is paramount for future technological applications, especially in electronics and catalysis.