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Related Concept Videos

Electrolysis03:00

Electrolysis

In a galvanic cell, the electrical work is done by a redox system on its surroundings as electrons produced by the spontaneous redox reactions are transferred through an external circuit. Alternatively, an external circuit does work on a redox system by imposing a voltage sufficient to drive an otherwise nonspontaneous reaction in a process known as electrolysis. For instance, recharging a battery involves the use of an external power source to drive the spontaneous (discharge) cell reaction in...
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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 passing...
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Bubble Management for Electrolytic Water Splitting by Surface Engineering: A Review.

Xu Cheng1,2, Zhong-de Du3, Yu Ding2

  • 1Key Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials (Anhui University of Technology), Ministry of Education, Maanshan 243002, China.

Langmuir : the ACS Journal of Surfaces and Colloids
|December 5, 2023
PubMed
Summary

Effective bubble management is crucial for electrocatalytic water splitting. Surface engineering strategies, including texture and wettability modifications, enhance electrode performance and stability by controlling bubble nucleation, growth, and detachment.

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Area of Science:

  • Electrocatalysis
  • Materials Science
  • Surface Engineering

Background:

  • Bubble evolution (nucleation, growth, detachment) significantly impacts electrocatalytic water splitting efficiency and electrode stability.
  • Optimizing bubble management is key to reducing overpotential and improving overall system performance.

Purpose of the Study:

  • To review recent advancements in electrode surface engineering for effective bubble management during water splitting.
  • To explore how surface physical and chemical properties influence bubble behavior and electrode stability.

Main Methods:

  • Discussion of bubble dynamics on electrode surfaces during water splitting.
  • Summary of surface engineering strategies: texture design, 3D construction, wettability modification, and functional group alteration.

Main Results:

  • Surface engineering offers a reliable and efficient approach to manage bubble evolution.
  • Tailoring surface morphology and composition directly impacts bubble nucleation, size, and detachment dynamics.

Conclusions:

  • Surface engineering is a critical strategy for advancing electrocatalytic water splitting technology.
  • Future research should focus on novel design principles and addressing remaining challenges for practical applications.