【摘 要】
：
Fast charge transport in the TiO2 network is essential for effective charge collection,particularly in solid state cells where recombination is very fast.In order to increase the electron mobility,sub
【机 构】
：
Suzhou Institute of Nano-Tech and Nano-Bionics,Chinese Academy of Sciences,Suzhou,Jiangsu 215123,Chi
论文部分内容阅读
Fast charge transport in the TiO2 network is essential for effective charge collection,particularly in solid state cells where recombination is very fast.In order to increase the electron mobility,substantial efforts have been focused on developing one dimensional (1-D)TiO2 (polycrystalline nanotube and single-crystalline nanowire)electrode materials for solar cells application.
其他文献
LiFePO4/石墨电池在不同温度条件下循环至30％的容量损失，电池容量与电池的循环次数呈线性关系，循环温度越高，直线的斜率越大。使用电化学、结构表征和ICP 技术研究了电池容量衰退的机理，研究表明，锂消耗是电池容量衰退的关键，使用ICP 测定了电池循环后负极表面沉积锂的量，发现正极中消耗的锂离子基本上都沉积在负极表面，负极表面SEI 膜持续生长是电池中活性锂消耗的主要原因。
锂离子电池已经成为混合动力车、插电式混合动力车以及零排放全电动动力汽车等低排量汽车最具前景的电源.锂离子电池具有高能量密度、低自放电、长循环寿命、没有记忆效应、具有广泛的使用温度范围以及高倍率性能的优点.
磷酸铁锂电池因为循环寿命高、安全、环保等突出优点成为电动车用动力电池的主要候选者之一.动力电池的核心要求包括高容量、高功率,高安全和长寿命,特别是电池的使用寿命牵涉到电动汽车的造价和使用成本,是电动汽车能够推广和普及必须考虑的问题,所以有关电池寿命研究的课题显得十分的重要和迫切.
Transition metal oxides nanostructures with porous and/or hollow structures have been heavily involved in newly developed energy storage and conversion systems [1].Plenty of these materials have been
作为一种典型的层状过渡金属硫化物,二硫化钼(MoS2)具有类似石墨的结构,即层内S-M-S原子之间是较强的共价键,而层与层之间则是较弱的范德华力.其层间距为0.615nm远大于石墨(0.335nm),从而更有利于Li离子的嵌入和脱出[1].
本研究采用水热法成功制备了纳米结构Fe3O4-SnO2/CNTs复合材料.在电流密度为50mA/g和电压区间为0-3 V的条件下,该材料首周放电容量为1097mAh/g,充电容量为849mAh/g,充放电效率为77.4％.循环到第50周时,材料放电容量保持在702mAh/g.在电流密度为200mA/g和800mA/g充放电条件下,循环到50周时材料放电容量分别为623mAh/g和605 mAh/g
Luminescent ID inorganic rmcro and nanowires from [Pt(CNBu)2(CN)2] that are aggregatedand directed by PtⅡ..Ptn interactions.The precursor [Pt(CNBu)2(CN)2] was synthesized in high yield by stirring K2P
Bi2WO6/ZnWO4composite photocatalysts have been successfully synthesized by a facile hydrothermal process.The catalysts were characterized by powder X-ray diffraction (XRD),transmission electron microc
One-dimensional (1D)nanostructured materials such as nanowires,nanorods and nanotubes have shown promising applications in solar energy conversion.In particular,TiO2 nanowires (NW)array recently has a
CdS nanoparticle-sensitized TiO2 (CdS-TiO2)nanotube arrays are synthesized with a facile one-step electrodeposition technique.[1] In these composited nanostructures,CdS nanoparticles uniformly distrib