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Microenvironment Modulation in Carbon-Supported Single-Atom Catalysts for Efficient Electrocatalytic CO2 Reduction.

Pengyu Song1, Pan Zhu1, Xiaoran Su1

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Single-atom catalysts on carbon supports (C-SACs) are cost-effective for electrocatalytic CO2 reduction (ECRR). Modulating the microenvironment of C-SACs is key to enhancing their ECRR performance.

Keywords:
carbon-supported single-atom catalystselectrocatalytic CO2 reductionmicroenvironment modulation

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Catalysis

Background:

  • Electrocatalytic CO2 reduction (ECRR) offers a viable route for CO2 mitigation and carbon balance.
  • Carbon-supported single-atom catalysts (C-SACs) are emerging as efficient and economical catalysts for ECRR.

Purpose of the Study:

  • To review recent advancements in microenvironment modulation of C-SACs for improved ECRR.
  • To provide insights into the current research landscape and guide the rational design of high-performance C-SACs.

Main Methods:

  • Focus on strategies for tuning the electronic structure of metal atoms in C-SACs.
  • Investigate the impact of coordination environment, including coordination numbers and hetero-atom coordination.
  • Analyze the role of diatomic sites in catalyst performance.

Main Results:

  • Microenvironment modulation significantly influences the ECRR activity of C-SACs.
  • Specific adjustments in coordination and diatomic sites lead to enhanced catalytic efficiency.
  • Understanding these relationships is crucial for catalyst optimization.

Conclusions:

  • The microenvironment plays a critical role in the performance of C-SACs for ECRR.
  • Further research into rational design based on microenvironment control is essential.
  • This review consolidates current knowledge to facilitate future catalyst development.