当前位置: X-MOL 学术Mater. Horiz. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Recent advances in air electrodes for Zn–air batteries: electrocatalysis and structural design
Materials Horizons ( IF 13.3 ) Pub Date : 2017-07-25 00:00:00 , DOI: 10.1039/c7mh00358g
Xiaoyi Cai 1, 2, 3, 4 , Linfei Lai 5, 6, 7, 8, 9 , Jianyi Lin 1, 2, 3, 4 , Zexiang Shen 1, 2, 3, 4
Affiliation  

Zn–air batteries have attracted significant attention because of their high energy density, environmental friendliness, safety, and low cost. The air cathode of is one of the most expensive cell components and a key factor in determining the performance of Zn–air batteries. As a fuel, O2 availability to the air cathode is determined by the level of both its dissolution and diffusion in an electrolyte, whereby electrocatalysis happens in the three-phase interface where the catalyst, electrolyte, and O2 meet. Maximizing the performance of air cathodes by rational design of the catalyst structure is of significant importance. To date, various electrocatalysts, including heteroatom-doped carbon, transition metal nitrides/oxides/sulfides, and perovskite oxides, have been developed with outstanding oxygen reduction reaction and oxygen evolution activity. More and more researchers are trying to apply electrocatalysts into Zn–air battery prototypes. The aim of this review is to afford a better understanding of air cathodes and provide guidelines to the researchers for the design and construction of high-performance, easy-to-use cathodes for metal–air batteries.

中文翻译:

锌空气电池空气电极的最新进展:电催化和结构设计

锌空气电池由于其能量密度高,环境友好,安全和成本低廉而备受关注。空气阴极是最昂贵的电池组件之一,也是决定锌空气电池性能的关键因素。作为燃料,空气阴极中的O 2可用性取决于其在电解质中的溶解和扩散水平,从而在催化剂,电解质和O 2的三相界面中发生电催化作用。遇到。通过合理设计催化剂结构来最大化空气阴极的性能非常重要。迄今为止,已经开发出具有优异的氧还原反应和氧释放活性的各种电催化剂,包括杂原子掺杂的碳,过渡金属氮化物/氧化物/硫化物和钙钛矿氧化物。越来越多的研究人员正在尝试将电催化剂应用于Zn-空气电池原型中。这篇综述的目的是让人们更好地了解空气阴极,并为研究人员提供设计和构造高性能,易于使用的金属空气电池阴极的指南。
更新日期:2017-08-10
down
wechat
bug