Carbon nanotube-wired and oxygen-deficient MoO₃ nanobelts with enhanced lithium-storage capability

详细信息    查看全文

• 作者：Jiangfeng Ni ; Guibin Wang ; Juan Yang ; Dongliang Gao ; Jitao Chen ; Lijun Gao ; Yan Li
• 关键词：Molybdenum oxide ; Carbon nanotube ; Oxygen deficient ; Lithium storage ; Conductivity
• 刊名：Journal of Power Sources
• 出版年：1 February, 2014
• 年：2014
• 卷：247
• 期：Complete
• 页码：90-94
• 全文大小：1494 K

文摘

Carbon nanotube (CNT) wired and oxygen-deficient MoO_3鈭?em>x/CNT structures are fabricated via a facile hydrothermal reaction followed by controlled reduction in Ar/H₂. The MoO_3鈭?em>x/CNT, which consists of 63聽mol% MoO₃ and 37聽mol% MoO₂, exhibits a much improved Li-storage property compared with the original MoO₃/CNT structure when evaluated as an anode in the 0.05-3.0聽V region. It is able to retain a capacity of 421聽mAh聽g^鈭? towards Li after 100 cycles at 200聽mA聽g^鈭?, and deliver 293 and 202聽mAh聽g^鈭? at current densities of 2 and 4聽A聽g^鈭?, respectively. It is suggested that the formation and recovery of a metallic MoO₂ phase over the conversion reaction may account for the enhanced performance.