化学通报（网络版）
化學通報（網絡版）
화학통보（망락판）
Chemistry Online
2001年
1期
,共1页
吴国涛%陈茂惠%朱光明%尤金跨%林祖赓**
吳國濤%陳茂惠%硃光明%尤金跨%林祖賡**
오국도%진무혜%주광명%우금과%림조갱**
碳纳米管%催化裂解%甲烷%锂离子电池
碳納米管%催化裂解%甲烷%鋰離子電池
탄납미관%최화렬해%갑완%리리자전지
Carbon nanotube%Catalytic decomposition%Methane%Lithium ion batteries
本文利用XRD和RAMAN等方法对甲烷在500~700°C范围催化裂解制备的碳纳米管结构进行了表征,同时考察了其电化学嵌锂性能.结果表明碳纳米管的制备温度对其锂嵌入脱出电位、可逆容量和充放电循环性能均有显著的影响,并且其嵌锂机理类似于低温热解碳(低于1000°C).
本文利用XRD和RAMAN等方法對甲烷在500~700°C範圍催化裂解製備的碳納米管結構進行瞭錶徵,同時攷察瞭其電化學嵌鋰性能.結果錶明碳納米管的製備溫度對其鋰嵌入脫齣電位、可逆容量和充放電循環性能均有顯著的影響,併且其嵌鋰機理類似于低溫熱解碳(低于1000°C).
본문이용XRD화RAMAN등방법대갑완재500~700°C범위최화렬해제비적탄납미관결구진행료표정,동시고찰료기전화학감리성능.결과표명탄납미관적제비온도대기리감입탈출전위、가역용량화충방전순배성능균유현저적영향,병차기감리궤리유사우저온열해탄(저우1000°C).
In the present work, carbon nanotubes were produced by catalytic decomposition of methane at low temperature range (500~700°C) on Ni-catalysts. Structures and lithium insertion properties of these carbon nanotubes were characterized by X-ray diffraction (XRD), Raman spectroscopy and electrochemical measurements, respectively. The results showed that preparation temperatures of carbon nanotubes have remarkable effects on both specific capacity and cycle life. The mechanism of lithium insertion into carbon nanotubes is similar to that of carbon produced by the pyrolysis of hydrocarbon below 1000°C.
