Qiu Dingrong, Wang Huihui, Ma Tingting, Huang Jiangdu, Meng Zhen, Fan Dayong, Bowen Chris R, Lu Huidan, Liu Yongping, Chandrasekaran Sundaram
Guangxi Key Laboratory of Electrochemical and Magneto-chemical, Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P.R. China.
Guangxi Colleges and Universities Key Laboratory of Surface and Interface Electrochemistry, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P.R. China.
ACS Nano. 2024 Aug 20;18(33):21651-21684. doi: 10.1021/acsnano.4c02289. Epub 2024 Aug 12.
In order to facilitate electrochemical oxygen reactions in electrically rechargeable zinc-air batteries (ZABs), there is a need to develop innovative approaches for efficient oxygen electrocatalysts. Due to their reliability, high energy density, material abundance, and ecofriendliness, rechargeable ZABs hold promise as next-generation energy storage and conversion devices. However, the large-scale application of ZABs is currently hindered by the slow kinetics of the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER). However, the development of heterostructure-based electrocatalysts has the potential to surpass the limitations imposed by the intrinsic properties of a single material. This Account begins with an explanation of the configurations of ZABs and the fundamentals of the oxygen electrochemistry of the air electrode. Then, we summarize recent progress with respect to the variety of heterostructures that exploit bifunctional electrocatalytic reactions and overview their impact on ZAB performance. The range of heterointerfacial engineering strategies for improving the ORR/OER and ZAB performance includes tailoring the surface chemistry, dimensionality of catalysts, interfacial charge transfer, mass and charge transport, and morphology. We highlight the multicomponent design approaches that take these features into account to create advanced highly active bifunctional catalysts. Finally, we discuss the challenges and future perspectives on this important topic that aim to enhance the bifunctional activity and performance of zinc-air batteries.
为了促进可充电锌空气电池（ZABs）中的电化学氧反应，需要开发用于高效氧电催化剂的创新方法。由于其可靠性、高能量密度、材料丰富性和环境友好性，可充电锌空气电池有望成为下一代储能和转换装置。然而，目前锌空气电池的大规模应用受到氧还原反应（ORR）和析氧反应（OER）缓慢动力学的阻碍。然而，基于异质结构的电催化剂的开发有可能突破单一材料固有特性所带来的限制。本综述首先解释了锌空气电池的结构以及空气电极氧电化学的基本原理。然后，我们总结了利用双功能电催化反应的各种异质结构的最新进展，并概述了它们对锌空气电池性能的影响。用于改善ORR/OER和锌空气电池性能的异质界面工程策略包括调整表面化学、催化剂的维度、界面电荷转移、质量和电荷传输以及形态。我们强调了考虑这些特征以制备先进的高活性双功能催化剂的多组分设计方法。最后，我们讨论了这一重要课题的挑战和未来展望，旨在提高锌空气电池的双功能活性和性能。
