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Interfacial electrochemical methods focus on the phenomena occurring at the boundary between an electrode and a solution, as opposed to bulk methods that concentrate on the solution's overall properties. These interfacial methods are classified as either static or dynamic based on the presence of a nonzero current in the electrochemical cell and the consistency of analyte concentrations. Static methods, such as potentiometry, measure the cell's potential without any significant current...
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Recent advances in microenvironment regulation for electrocatalysis.

Zhiyuan Xu1, Xin Tan1, Chang Chen1

  • 1Engineering Research Center of Advanced Rare Earth Materials, Department of Chemistry, Tsinghua University, Beijing 100084, China.

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|November 18, 2024
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Microenvironment regulation enhances electrocatalysis for renewable energy, hydrogen, and carbon capture. This review details strategies and techniques for optimizing electrocatalytic processes for practical applications.

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CO2 reduction reactionelectrical double layerhydrogen electrocatalysismicroenvironment regulationoxygen electrocatalysis

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Area of Science:

  • Catalysis and Materials Science
  • Sustainable Energy Technologies
  • Electrochemistry

Background:

  • High-efficiency electrocatalysis is crucial for linking renewable energy, hydrogen economy, and carbon capture/utilization.
  • Optimizing electrocatalytic reactions and device performance is key for large-scale sustainable applications.
  • Microenvironment regulation at the catalytic interface significantly boosts reaction rates and product selectivity.

Purpose of the Study:

  • To review recent advancements in microenvironment regulation for key electrocatalytic processes.
  • To discuss the application of in situ/operando characterization and theoretical simulations.
  • To provide insights into future trends and research directions in electrocatalysis.

Main Methods:

  • Summarizing literature on microenvironment regulation strategies.
  • Highlighting advancements in in situ and operando characterization techniques.
  • Reviewing the role of theoretical simulations in understanding electrocatalytic interfaces.

Main Results:

  • Microenvironment regulation effectively enhances electrocatalytic reaction rates.
  • Improved selectivity for desired products is achieved through interface control.
  • The review covers water electrolysis, hydrogen-oxygen fuel cells, and CO2 reduction.

Conclusions:

  • Microenvironment regulation is a powerful strategy for advancing electrocatalysis.
  • Integrated characterization and simulation methods are vital for mechanistic understanding.
  • Further research is needed to translate these findings into widespread practical applications for a sustainable future.