Improved kinetics of methanol oxidation on Pt/hollow carbon sphere catalysts

2008 ◽  
Vol 53 (28) ◽  
pp. 8341-8345 ◽  
Author(s):  
Jin Wu ◽  
Fengping Hu ◽  
Xiduo Hu ◽  
Zidong Wei ◽  
Pei Kang Shen
Author(s):  
Maru Dessie Walle ◽  
You-Nian Liu

AbstractThe lithium–sulfur (Li–S) batteries are promising because of the high energy density, low cost, and natural abundance of sulfur material. Li–S batteries have suffered from severe capacity fading and poor cyclability, resulting in low sulfur utilization. Herein, S-DHCS/CNTs are synthesized by integration of a double-hollow carbon sphere (DHCS) with carbon nanotubes (CNTs), and the addition of sulfur in DHCS by melt impregnations. The proposed S-DHCS/CNTs can effectively confine sulfur and physically suppress the diffusion of polysulfides within the double-hollow structures. CNTs act as a conductive agent. S-DHCS/CNTs maintain the volume variations and accommodate high sulfur content 73 wt%. The designed S-DHCS/CNTs electrode with high sulfur loading (3.3 mg cm−2) and high areal capacity (5.6 mAh mg cm−2) shows a high initial specific capacity of 1709 mAh g−1 and maintains a reversible capacity of 730 mAh g−1 after 48 cycles at 0.2 C with high coulombic efficiency (100%). This work offers a fascinating strategy to design carbon-based material for high-performance lithium–sulfur batteries.


Kobunshi ◽  
1973 ◽  
Vol 22 (2) ◽  
pp. 87-91
Author(s):  
Kazuo KOBAYASHI

2017 ◽  
Vol 726 ◽  
pp. 466-473 ◽  
Author(s):  
Xiaoze Shi ◽  
Shuai Zhang ◽  
Xuecheng Chen ◽  
Tao Tang ◽  
Ewa Mijowska

2015 ◽  
Vol 300 ◽  
pp. 157-163 ◽  
Author(s):  
Zhian Zhang ◽  
Guanchao Wang ◽  
Yanqing Lai ◽  
Jie Li ◽  
Zhiyong Zhang ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document