A review of carbon-composited materials as air-electrode bifunctional electrocatalysts for metal–air batteries

Metal–air batteries (MABs), particularly rechargeable MABs, have gained renewed interests as a potential energy storage/conversion solution due to their high specific energy, low cost, and safety. The development of MABs has, however, been considerably hampered by its relatively low rate capability...

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Published inElectrochemical energy reviews Vol. 1; no. 1; pp. 1 - 34
Main Authors Wang, Yan-Jie, Fang, Baizeng, Zhang, Dan, Li, Aijun, Wilkinson, David P, Ignaszak, Anna, Zhang, Lei, Zhang, Jiujun
Format Journal Article
LanguageEnglish
Published Singapore Springer 01.03.2018
Springer Singapore
Subjects
bifunctional electrocatalysts
carbon
Catalysis
Chemistry
Chemistry and Materials Science
Electrochemistry
Industrial Chemistry/Chemical Engineering
metal–air batteries
oxygen evolution reaction
oxygen reduction reaction
Renewable and Green Energy
Review Article
synergistic effect
Metal–air batteries
Oxygen reduction reaction
88.80.F− Energy storage technologies
Oxygen evolution reaction
Synergistic effect
Carbon
Bifunctional electrocatalysts
88.80.ff Batteries
82.47.Aa Lithium-ion batteries
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Summary:Metal–air batteries (MABs), particularly rechargeable MABs, have gained renewed interests as a potential energy storage/conversion solution due to their high specific energy, low cost, and safety. The development of MABs has, however, been considerably hampered by its relatively low rate capability and its lack of efficient and stable air catalysts in which the former stems mainly from the sluggish kinetics of the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) and the latter stems from the corrosion/oxidation of carbon materials in the presence of oxygen and high electrode potentials. In this review, various carbon-composited bifunctional electrocatalysts are reviewed to summarize progresses in the enhancement of ORR/OER and durability induced by the synergistic effects between carbon and other component(s). Catalyst mechanisms of the reaction processes and associated performance enhancements as well as technical challenges hindering commercialization are also analyzed. To facilitate further research and development, several research directions for overcoming these challenges are also proposed.
NRC publication: Yes
ISSN:2520-8136
2520-8489
2520-8136
DOI:10.1007/s41918-018-0002-3