A nano-structured RuO2/NiO cathode enables the operation of non-aqueous lithium–air batteries in ambient air

2016 ◽  
Vol 9 (5) ◽  
pp. 1783-1793 ◽  
Author(s):  
P. Tan ◽  
Z. H. Wei ◽  
W. Shyy ◽  
T. S. Zhao ◽  
X. B. Zhu

A cathode composed of RuO2 nanoparticle-decorated NiO nanosheets not only catalyzes the oxygen reduction and evolution reactions, but also promotes the decomposition of the side products (LiOH and Li2CO3), enabling a non-aqueous lithium–air battery to be truly operated in ambient air.

2016 ◽  
Vol 69 (6) ◽  
pp. 683 ◽  
Author(s):  
Hui Lv ◽  
Rongli Jiang ◽  
Xiaoyu Zhang ◽  
Jing Wang

Mace-like Fe3O4 nanostructures with a length of 200–300 nm and a diameter of 10–30 nm were successfully synthesized via a microemulsion-mediated solvothermal method and used as an electrode catalyst for lithium–air batteries. The results showed that the mace-like Fe3O4 nanostructures were obtained by adjusting the NaOH concentration and reaction temperature, and by adding polyethylene glycol-1000. The growth and assembly mechanism of the mace-like Fe3O4 nanostructures was also discussed. Polyethylene glycol-1000 not only acted as a soft template to form Fe3O4 nanorods, but also assisted in the assembly of the Triton X-100-decorated Fe3O4 nanoparticles onto the nanorods. The results of charge–discharge tests showed that the lithium–air battery based on mace-like Fe3O4 nanostructures exhibited a high discharge capacity of 1427 mA h g−1 in ambient air. The unique one-dimensional mace-like Fe3O4 nanostructures could effectively enhance the catalytic activity for the oxygen evolution reduction process, which is effective for decreasing the charging potential plateau.


2021 ◽  
Vol 501 ◽  
pp. 230006
Author(s):  
Ruixiang Wang ◽  
Yuanliang Yuan ◽  
Jianbo Zhang ◽  
Xiaocong Zhong ◽  
Jiaming Liu ◽  
...  

Author(s):  
Miaomiao Liu ◽  
Yulong He ◽  
Jintao Zhang

Exploration of inexpensitive and high perfomance carbon-based electrocatalyst with abundant active sites for oxygen reduction and evolution reactions is vital for enhancing the performance of zinc air battery. Herein, the...


Materials ◽  
2018 ◽  
Vol 11 (4) ◽  
pp. 601 ◽  
Author(s):  
Kui Chen ◽  
Mei Wang ◽  
Guangli Li ◽  
Quanguo He ◽  
Jun Liu ◽  
...  
Keyword(s):  

2020 ◽  
pp. 2006533
Author(s):  
He Sun ◽  
Mengfan Wang ◽  
Shenghui Zhang ◽  
Sisi Liu ◽  
Xiaowei Shen ◽  
...  

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