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Updated: Sep 22, 2025

Surface Properties of Synthesized Nanoporous Carbon and Silica Matrices
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A Top-Down Templating Strategy toward Functional Porous Carbons.

Le-Le Zhang1, Lei Tong1, Xue-Hui Lv2

  • 1Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China.

Small (Weinheim an Der Bergstrasse, Germany)
|May 26, 2022
PubMed
Summary

Researchers developed a new method to create functional porous carbons using metal oxides as templates. This technique enables the synthesis of advanced materials for energy storage and catalysis, including efficient single-atom catalysts.

Keywords:
fuel cellsoxygen reduction reactionporous carbonssingle-atom catalyststop-down templating

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Electrochemistry

Background:

  • Nanostructured carbon materials are crucial for catalysis, environmental applications, and energy storage due to their high porosity and tunable functionalities.
  • Developing facile and scalable synthesis methods for these materials remains a key challenge.

Purpose of the Study:

  • To present a novel top-down templating strategy for synthesizing functional porous carbons.
  • To demonstrate the versatility of this method for creating advanced carbon materials and single-atom catalysts.

Main Methods:

  • Direct carbonization of organic precursors with metal oxide powders.
  • In situ formation of metal oxide nanoparticles as templates during carbonization.
  • Engineering porosity and heteroatom doping by varying precursors and metal oxides.

Main Results:

  • Successfully synthesized functional porous carbons with controllable porosity and doping.
  • Demonstrated the applicability of the method for preparing carbon-based single-atom catalysts (SACs) with iron-nitrogen sites.
  • Achieved a high power density of 545 mW cm⁻² using these SACs in a H₂-air proton exchange membrane fuel cell.

Conclusions:

  • The top-down templating strategy offers a facile route to functional porous carbons.
  • This method is effective for creating high-performance carbon-based single-atom catalysts for fuel cell applications.