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Related Concept Videos

Electrochemical Systems01:24

Electrochemical Systems

Electrochemical systems provide a fascinating insight into the dynamic interplay of charged species within various phases. One notable example is the interaction between a membrane permeable to K⁺ ions but not to Cl⁻ ions, separating an aqueous KCl solution from pure water. As K⁺ ions diffuse through the membrane, they generate net charges on each phase, leading to a potential difference between them.Similarly, when a piece of Zn is immersed in an aqueous ZnSO₄ solution, the Zn metal, composed...
Electrochemistry: Overview01:04

Electrochemistry: Overview

Electrochemistry is the branch of chemistry that studies the relationship between electrical quantities and chemical reactions, particularly oxidation and reduction. Oxidation is the loss of electrons from a substance, whereas reduction refers to the gain of electrons. A substance with a strong electron affinity is called an oxidizing agent (oxidant), and a reducing agent (reductant) is a species that donates electrons. Oxidation and reduction processes are pivotal to electrochemical reactions,...
Electrochemical Cells01:28

Electrochemical Cells

Electrochemical cells are systems that convert chemical energy into electrical energy or use electrical energy to drive chemical reactions. They consist of two electrodes in contact with an electrolyte, where redox reactions enable electron transfer. Most electrochemical cells include two half-cells connected by an external wire for electron flow and a salt bridge for ion flow. The salt bridge contains an electrolyte solution and maintains charge neutrality by allowing ions—not electrons—to...
Thermal and Photochemical Electrocyclic Reactions: Overview01:26

Thermal and Photochemical Electrocyclic Reactions: Overview

Electrocyclic reactions are reversible reactions. They involve an intramolecular cyclization or ring-opening of a conjugated polyene. Shown below are two examples of electrocyclic reactions. In the first reaction, the formation of the cyclic product is favored. In contrast, in the second reaction, ring-opening is favored due to the high ring strain associated with cyclobutene formation.
Carbon-dioxide Fixation01:28

Carbon-dioxide Fixation

Carbon dioxide fixation in prokaryotes enables the assimilation of inorganic carbon into organic molecules, supporting biosynthetic pathways, sustaining ecosystems, and contributing to the global carbon cycle. It also has industrial applications in carbon capture and bioproduct synthesis. Autotrophic organisms rely on this process to utilize CO₂ as a carbon source in diverse environments.The Calvin CycleThe Calvin cycle is the most widespread carbon fixation mechanism, primarily used by...
Heterogeneous Catalysis01:22

Heterogeneous Catalysis

Heterogeneous catalysis involves a catalyst in a different phase from the reactants. It is a process where the catalyst and the reactants are in distinct phases, typically solid and gas or liquid.Most heterogeneous catalysts are metals, metal oxides, or acids. The list includes transition metals like iron (Fe), cobalt (Co), nickel (Ni), palladium (Pd), platinum (Pt), chromium (Cr), manganese (Mn), tungsten (W), silver (Ag), and copper (Cu). These metals possess partially vacant d orbitals that...

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Updated: May 19, 2026

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

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Published on: April 10, 2018

Perspective on Modular Electrocatalysis for Carbon and Nitrogen Cycling.

Xiaokang Wang1, Sirui Tang1, Qilong Wu2

  • 1Intelligent Polymer Research Institute, Australian Institute for Innovative Materials, University of Wollongong, Squires Way, North Wollongong, NSW, 2500, Australia.

Nano-Micro Letters
|May 18, 2026
PubMed
Summary

Modular electrocatalysis offers a novel approach to manage the carbon-nitrogen (C-N) cycle. This method simplifies complex C-N conversions, transforming pollutants into valuable chemicals like amines and amides.

Keywords:
Carbon and nitrogen cyclingHigh-value-added chemicalsModular electrocatalysis

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

  • Environmental Science
  • Catalysis
  • Green Chemistry

Background:

  • The carbon-nitrogen (C-N) cycle is crucial for ecological balance but is disrupted by pollution and greenhouse gas (GHG) emissions.
  • Complex C-N reaction pathways and fragmented research impede practical solutions for environmental remediation.

Purpose of the Study:

  • To introduce "Modular Electrocatalysis" as an integrated system for efficient electrocatalytic C-N reactions.
  • To deconstruct complex C-N conversions into simplified, controllable steps using modular units and routes.

Main Methods:

  • Proposing a modular electrocatalysis system to integrate segmented C-N reactions.
  • Designing customized modules and adjustable routes for C-N conversion.
  • Exploring catalyst tailoring and reactor customization for industrial implementation.

Main Results:

  • Facilitates the transformation of carbon- and nitrogen-containing pollutants into high-value chemicals (e.g., amines, amides).
  • Addresses challenges in designing feasible modular catalytic routes.
  • Provides systematic guidance for artificial C-N cycling processes.

Conclusions:

  • Modular electrocatalysis presents a promising strategy for sustainable C-N management.
  • Customized catalyst and reactor design are key for successful industrial integration.
  • This approach offers a pathway to mitigate pollution and create valuable chemicals.