http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Cu2O Nanoparticles and Multi-Branched Nanowires as Anodes for Lithium-Ion Batteries
Xu Chen,Chunxin Yu,Xiaojiao Guo,Qinsong Bi,Muhammad Sajjad,Yang Ren,Xiaowei Zhou,Zhu Liu 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2018 NANO Vol.13 No.09
Novelty Cu2O multi-branched nanowires and nanoparticles with size ranging from ~15 nm to ~60 nm have been synthesized by one-step hydrothermal process. These Cu2O nanostructures when used as anode materials for lithium-ion batteries exhibit the excellent electrochemical cycling stability and reduced polarization during the repeated charge/discharge process. The specific capacity of the Cu2O nanoparticles, multi-branched nanowires and microscale are maintained at 201.2 mAh/g, 259.6mAh/g and 127.4 mAh/g, respectively, under the current density of 0.1 A/g after 50 cycles. The enhanced electrochemical performance of the Cu2O nanostructures compared with microscale counterpart can be attributed to the larger contact area between active Cu2O nanostructures/electrolyte interface, shorter diffusion length of Li+ within nanostructures and the improved stress release upon lithiation/delithiation.
Morphology-controllable 3D flower-like TiO2 for UV shielding application
Yawen Wanga,Zunli Mo,Chun Zhang,Ping Zhang,Ruibin Guo,Hao Gou,Rere Hu,Xiaojiao Wei 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.32 No.-
Calliandra like rutile TiO2 hierarchical microspheres with different diameters were successfully preparedby hydrothermal method via altering reaction time. All these as synthesized unique hierarchicalmicrospheres displayed higher UV shielding capability compared with commercial P25 and anataseTiO2. Noticeably, the UV shielding efficiency of these microspheres had a close relation to their diametersand packing density of constituted nanorods. The S-24h-C sample exhibited the highest UV shieldingefficiency, which could not only block all UV light below 400 nm but also show poor photocatalyticactivity under UV light radiation, indicating its great applied potential in UV-blocking materials.