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Related Concept Videos

Redox Reactions01:24

Redox Reactions

58.1K
Oxidation-reduction or redox reactions involve the transfer of electrons from one molecule or atom to another. When an atom gains an electron, another atom must lose an electron, meaning oxidation and reduction must occur together. Since the redox occurs in pairs, the atom that gets oxidized is also called the reducing agent or reductant, and the atom that is reduced is also called the oxidizing agent or oxidant. A straightforward way to remember the definitions of oxidation and reduction is...
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Redox Reactions01:27

Redox Reactions

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Redox reactions are vital biochemical processes that underpin energy metabolism in cells. These reactions involve the transfer of electrons between molecules, occurring in tandem as oxidation and reduction. Oxidation refers to the loss of electrons, while reduction denotes their gain. This coupling ensures the seamless flow of electrons through metabolic pathways. For example, in bacterial metabolism, glucose undergoes oxidation to carbon dioxide, while oxygen is simultaneously reduced to...
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Redox Equilibria: Overview01:23

Redox Equilibria: Overview

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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...
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Balancing Redox Equations02:58

Balancing Redox Equations

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Electrochemistry is the science involved in the interconversion of electrical and chemical reactions. Such reactions are called reduction-oxidation, or redox reactions. These important reactions are defined by changes in oxidation states for one or more reactant elements and include a subset of reactions involving the transfer of electrons between reactant species. Electrochemistry as a field has evolved to yield sufficient insights on the fundamental principles of redox chemistry and multiple...
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Oxidation-Reduction Reactions03:11

Oxidation-Reduction Reactions

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Oxidation–Reduction Reactions
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Redox Titration: Other Oxidizing and Reducing Agents01:26

Redox Titration: Other Oxidizing and Reducing Agents

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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...
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A redox interaction-engaged strategy for multicomponent nanomaterials.

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Redox interaction-engaged strategies (RIESs) enable the synthesis of multicomponent nanomaterials (MCNs) with enhanced properties. This approach offers precise control over nanostructure fabrication for advanced applications.

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Chemical Engineering

Background:

  • Multicomponent nanomaterials (MCNs) offer superior properties compared to individual components due to synergistic effects.
  • Developing efficient synthetic strategies for controlled MCN fabrication is crucial.
  • Existing methods like galvanic replacement reactions (GRR) have limitations.

Purpose of the Study:

  • To systematically review current achievements in multicomponent nanomaterial synthesis using redox interaction-engaged strategies (RIESs).
  • To detail the operational process, applications, and formation mechanisms of RIESs.
  • To discuss the structure-performance relationships of MCNs fabricated via RIESs, particularly in catalysis.

Main Methods:

  • Focus on redox interaction-engaged strategies (RIESs) for MCN synthesis.
  • Manipulation of precursors with distinct reduction and oxidation capabilities.
  • Simultaneous electron transmission and particle generation without mass exchange, distinguishing from GRR.

Main Results:

  • RIESs enable the formation of strongly coupled MCNs with precisely controlled size, shape, composition, and hybridization.
  • Fabricated MCNs exhibit improved performance in catalytic reactions.
  • Detailed structure-performance relationships are presented for catalytic applications.

Conclusions:

  • RIESs represent a powerful and promising approach for advanced MCN synthesis.
  • The review provides a comprehensive overview of RIESs, their mechanisms, and applications.
  • Future research directions and development trends in this area are highlighted.