负载银中空纳米碳纤维的制备及电化学性能

为了提高碳基超级电容器电极的电化学性能，采用同轴静电纺丝和原位还原技术相结合的方法制备聚丙烯腈基(PAN-based)负载银纳米碳纤维，经过热处理后得到负载银的中空纳米碳纤维，考察了所制得负载银中空纳米碳纤维的形貌、结构及电化学性能。结果表明：原位还原技术能顺利将银颗粒成功负载到中空纳米碳纤维表面，且负载银有利于提高中空纳米碳纤维的电化学性能，表现为电化学反应可逆性和电容量均有所增加，电荷转移阻抗减小。...

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Bibliographic Details
Published in材料工程 Vol. 44; no. 11; pp. 56 - 60
Main Author 李甫;程博闻;费鹏飞;董永春;康卫民
Format Journal Article
LanguageChinese
Published 天津工业大学纺织学院,天津,300387%天津工业大学分离膜与膜过程国家重点实验室,天津,300387 2016
Subjects
同轴静电纺丝;银;纳米碳纤维;超级电容器
纳米碳纤维
Co-electrospinning
同轴静电纺丝
carbon nanofiber
银
超级电容器
silver
supercapacitor
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Summary:为了提高碳基超级电容器电极的电化学性能，采用同轴静电纺丝和原位还原技术相结合的方法制备聚丙烯腈基(PAN-based)负载银纳米碳纤维，经过热处理后得到负载银的中空纳米碳纤维，考察了所制得负载银中空纳米碳纤维的形貌、结构及电化学性能。结果表明：原位还原技术能顺利将银颗粒成功负载到中空纳米碳纤维表面，且负载银有利于提高中空纳米碳纤维的电化学性能，表现为电化学反应可逆性和电容量均有所增加，电荷转移阻抗减小。
Bibliography:11-1800/TB
Co -electrospinning ; silver ; carbon nanofiber ; supercapacitor
S ilv e r doped P A N-b a s e d h o llo w carbon n a n o fib e rs w ere prepared c o m b in in g c o-e le c tro s p in nin g w ith in s itu re d u c tio n tech n iq u e su b se q u e n tly heat tre a tm e n t to im p ro v e th e ele ctro ch e m ica l p e rformances o f carbon based su p e rca p a cito r electrodes.T h e m o rp h o lo g y,s tru c tu re and electro ch e m ica lperform ances o f the re s u lte d n a n o fib e r w ere studied.T h e re s u lts show th a t th e s ilv e r n a n o p a rticle scan be doped on the surface o f h o llo w carbon n a n o fib e rs and the a d d itio n o f s ilv e r fa vo rs th e im p ro v e me n t o f th e electro ch e m ica l p e rfo rm a n ce s,e x h ib itin g th e enhanced re v e rs ib ility o f electrode re a ctio nand th e capacitance and th e reduced charge tra n s fe r im pedance.
ISSN:1001-4381
1001-4381
DOI:10.11868/j.issn.1001-4381.2016.11.009