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Open AccessReview

Recent Advances in Isolated Single-Atom Catalysts for Zinc Air Batteries: A Focus Review

1
School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, China
2
ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, Australian Institute of Innovative Materials, Innovation Campus, University of Wollongong, Wollongong, NSW 2522, Australia
*
Authors to whom correspondence should be addressed.
Nanomaterials 2019, 9(10), 1402; https://doi.org/10.3390/nano9101402
Received: 5 September 2019 / Revised: 25 September 2019 / Accepted: 26 September 2019 / Published: 2 October 2019
Recently, zinc–air batteries (ZABs) have been receiving attention due to their theoretically high energy density, excellent safety, and the abundance of zinc resources. Typically, the performance of the zinc air batteries is determined by two catalytic reactions on the cathode—the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER). Therefore, intensive effort has been devoted to explore high performance electrocatalysts with desired morphology, size, and composition. Among them, single-atom catalysts (SACs) have emerged as attractive and unique systems because of their high electrocatalytic activity, good durability, and 100% active atom utilization. In this review, we mainly focus on the advance application of SACs in zinc air batteries in recent years. Firstly, SACs are briefly compared with catalysts in other scales (i.e., micro- and nano-materials). A main emphasis is then focused on synthesis and electrocatalytic activity as well as the underlying mechanisms for mono- and dual-metal-based SACs in zinc air batteries catalysis. Finally, a prospect is provided that is expected to guide the rational design and synthesis of SACs for zinc air batteries. View Full-Text
Keywords: Single-atom catalysis; zinc–air battery; oxygen reduction Single-atom catalysis; zinc–air battery; oxygen reduction
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MDPI and ACS Style

Zhang, W.; Liu, Y.; Zhang, L.; Chen, J. Recent Advances in Isolated Single-Atom Catalysts for Zinc Air Batteries: A Focus Review. Nanomaterials 2019, 9, 1402.

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