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Related Concept Videos

Anionic Chain-Growth Polymerization: Overview01:20

Anionic Chain-Growth Polymerization: Overview

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The polymerization process that involves carbanion as an intermediate is called anionic polymerization. It is also a type of addition or chain-growth polymerization. Anionic polymerization gets initiated by a strong nucleophile such as an organolithium or a Grignard reagent. The most commonly used initiator for anionic polymerization is butyl lithium. Monomers involved in anionic polymerization must possess a vinyl group bonded to one or two electron-withdrawing groups. For instance,...
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Polar Covalent Bonds02:24

Polar Covalent Bonds

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Covalent bonds are formed between two atoms when both have similar tendencies to attract electrons to themselves (i.e., when both atoms have identical or fairly similar ionization energies and electron affinities). Nonmetal atoms frequently form covalent bonds with other nonmetal atoms. For example, the hydrogen molecule, H2, contains a covalent bond between its two hydrogen atoms. When two separate hydrogen atoms with a particular potential energy approach each other, their valence orbitals...
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Catalysis02:50

Catalysis

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The presence of a catalyst affects the rate of a chemical reaction. A catalyst is a substance that can increase the reaction rate without being consumed during the process. A basic comprehension of a catalysts’ role during chemical reactions can be understood from the concept of reaction mechanisms and energy diagrams.
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Ziegler–Natta Chain-Growth Polymerization: Overview01:17

Ziegler–Natta Chain-Growth Polymerization: Overview

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Ziegler–Natta polymerization is another form of addition or chain‐growth polymerization used for synthesizing linear polymers over branched polymers. The catalyst used for polymerization is the Ziegler–Natta catalyst, named after Karl Ziegler and Giulio Natta, who developed it in 1953. This catalyst is an organometallic complex of titanium tetrachloride and triethyl aluminum, with the active form of the catalyst being an alkyl titanium compound. Using the Ziegler–Natta...
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Electron Carriers01:24

Electron Carriers

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Electron carriers can be thought of as electron shuttles. These compounds can easily accept electrons (i.e., be reduced) or lose them (i.e., be oxidized). They play an essential role in energy production because cellular respiration is contingent on the flow of electrons.
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Nitriles to Amines: LiAlH4 Reduction00:55

Nitriles to Amines: LiAlH4 Reduction

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Nitriles are reduced to amines in the presence of strong reducing agents like lithium aluminum hydride through a typical nucleophilic acyl substitution. The reaction requires two equivalents of the reducing agent. The reducing agent acts as a source of hydride ions.
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Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
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Nitrogen-containing polymers as a platform for CO2 electroreduction.

Sathish Ponnurangam1, Irina V Chernyshova2, Ponisseril Somasundaran2

  • 1Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, Alberta, Canada.

Advances in Colloid and Interface Science
|November 8, 2016
PubMed
Summary

Nitrogen-containing polymers (N-polymers) are emerging as versatile platforms for the electrocatalytic reduction of carbon dioxide (CO2). These N-polymer-metal composites offer enhanced efficiency and stability for converting CO2 into valuable chemicals.

Keywords:
CO(2) reductionElectrochemistryElectron conducting polymersHeterogeneous catalysisIon exchanging polymersMetal nanoparticlesMetal-polymer complexes

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Chemical Engineering

Background:

  • Electrocatalytic reduction of carbon dioxide (CO2) is crucial for sustainable chemical production.
  • Nitrogen-containing polymers (N-polymers) are gaining attention as novel materials for CO2 conversion.
  • Existing reviews lack focus on N-polymers as a dedicated platform for CO2 electroreduction.

Purpose of the Study:

  • To review the current state of N-polymer-metal composites for CO2 electrocatalytic conversion.
  • To highlight the advantages, challenges, and future prospects of using N-polymers in this field.
  • To consolidate information on fabrication methods and catalytic mechanisms.

Main Methods:

  • Literature review of N-polymer-metal composites for CO2 electroreduction.
  • Survey of reported efficiencies of N-polymer-metal electrodes.
  • Analysis of fabrication techniques and proposed catalytic mechanisms.

Main Results:

  • N-polymers act as catalysts, co-catalysts, promoters, and stabilizing agents in CO2 electroreduction.
  • N-polymer-metal composites demonstrate significant potential for efficient CO2 conversion.
  • Various fabrication methods and catalytic mechanisms are discussed.

Conclusions:

  • N-polymer-metal composites represent a promising platform for advanced CO2 electrocatalytic conversion.
  • Further research is needed to optimize these materials and understand their mechanisms fully.
  • This review provides a comprehensive overview for researchers in the field.