Cited 1 time in webofscience Cited 2 time in scopus

Recent advances in methods and technologies for enhancing bubble detachment during electrochemical water splitting

Title
Recent advances in methods and technologies for enhancing bubble detachment during electrochemical water splitting
Authors
Darband, Ghasem BaratiAliofkhazraei, MahmoodShanmugam, Sangaraju
DGIST Authors
Shanmugam, Sangaraju
Issue Date
2019-10
Citation
Renewable and Sustainable Energy Reviews, 114
Type
Article
Article Type
Review
Author Keywords
Hydrogen evolution reactionOxygen evolution reactionRenewable energyBubble resistanceElectrocatalyst
Keywords
HYDROGEN-EVOLUTION REACTIONHIGHLY EFFICIENT ELECTROCATALYSTSITU TOPOTACTIC REDUCTIONGAS-EVOLVING ELECTRODES2-PHASE FLOW MODELOXYGEN EVOLUTIONHIERARCHICAL NANOSTRUCTUREBIFUNCTIONAL CATALYSTBIOINSPIRED DESIGNNANOSHEETS ARRAY
ISSN
1364-0321
Abstract
Development of new electrocatalysts with high electrocatalytic activity and stability is of great importance in the production of hydrogen fuel. Numerous methods have been established to increase the activity of electrocatalysts, including increasing active surface area and improving intrinsic catalytic activity. However, the electrochemical water splitting is a gas-involving reaction in which hydrogen and oxygen bubbles are formed on cathode and anode surfaces, respectively, which lead to an increase in overpotential of electrochemical reactions. In this review, recent advances have been complied to understand the behavior of hydrogen and oxygen bubbles separation from the surface of electrodes during water splitting. Initially, various types of resistance in water splitting have been discussed, and further progress has been discussed to improve the separation of bubbles and thus improve electrocatalytic activity. These improvements include surface nanostructuring and making superaerophobic surfaces where bubbles can easily be removed from the surface, resulting in lower bubble resistance. Furthermore, the use of magnetic, supergravity and ultrasonic fields are among additional methods for fast separation of bubbles from the surface and improving catalytic activity This paper presents a review of a research pathway for creating 3D nanoarrays to improve the bubble separation behavior on the surface and improve electrocatalytic properties. © 2019 Elsevier Ltd
URI
http://hdl.handle.net/20.500.11750/10844
DOI
10.1016/j.rser.2019.109300
Publisher
Elsevier BV
Related Researcher
  • Author Shanmugam, Sangaraju Advanced Energy Materials Laboratory
  • Research Interests Electrocatalysts for fuel cells; water splitting; metal-air batteries; Polymer electrolyte membranes for fuel cells; flow batteries; Hydrogen generation and utilization
Files:
There are no files associated with this item.
Collection:
Department of Energy Science and EngineeringAdvanced Energy Materials Laboratory1. Journal Articles


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