| 查看: 252 | 回复: 0 | ||
[求助]
silver nanoparticle-lnduced growth of nanowire-covered porous Mno2
|
|
ABSTRACT:We report a facile,loe-cost,ultrasound-assisted synthesis of nanowire-covered porous mno2 spheres with long-term durability.The use of catalytic silver nanoparticles is crucial to the growth mechanism in the initial stage,and the resulting silver oxides later grow the nanowires in such a way that they always terminate the wires,thus automatically covering the structures and increasing conductivity.The optimal Ag2o-Mno2 structures have a specific capacitance of 536.4F/g at 5mV/s.At a high scan rate of100mV/s,only 200F/g remain for the reported carbon nanotube/Mno2 material with an excellent capacitance at low scan rate（1230F/g, 1 mV/s）,while the Ag2o-Mno2 reported here still has 417.2 F/g.The material reaches a stable region of 91.3% capacitance retention over 10000 charge/discharge cycles at 5A/g. KEYWORDS:Manganess oxide,Supercapacitors,Hierarchical structures,Rapid charging,Long-term stability |
回复此楼» 猜你喜欢
294求调剂
已经有6人回复
-
322求调剂：一志愿湖南大学 材料与化工（085600），已过六级。
已经有14人回复
-
282求调剂
已经有6人回复
-
调剂
已经有9人回复
-
315求调剂
已经有13人回复
-
材料调剂
已经有8人回复
-
070300化学学硕311分求调剂
已经有6人回复
-
求调剂
已经有7人回复
-
材料调剂
已经有9人回复
-
一志愿211，化学学硕，310分，本科重点双非，求调剂
已经有9人回复
