Porous Zn–Sn–O nanocubes with a uniform size were synthesized through a facile aqueous solution route combined with subsequent thermal treatment. The chemical composition, morphology, and microstructure of Zn–Sn–O...Porous Zn–Sn–O nanocubes with a uniform size were synthesized through a facile aqueous solution route combined with subsequent thermal treatment. The chemical composition, morphology, and microstructure of Zn–Sn–O nanocubes, which have significant effects on the lithium storage performances, were easily tuned by adjusting the calcination temperature in preparation processes of ZnSn(OH)6solid nanocubes. Further studies revealed that porous Zn–Sn–O nanocubes prepared at 600 °C exhibited a good rate capability and a high reversible capacity of 700 m Ah g^(-1)at a current density of 200 m Ag^(-1)after 50 cycles, which may be a great potential as anode materials in Lithium-ion batteries.展开更多
介绍了低介质常数εr 微波介质陶瓷中复合钙钛矿 Ba(X ,Y) O3系、(Zn,Sn) Ti O4系和 Ba O- Ti O2 系材料的结构和介电特性 ,分析其介电性质随结构和工艺参数的变化规律。以上系列微波介质陶瓷的烧结温度普遍较高 ,传统的介电理论不能完...介绍了低介质常数εr 微波介质陶瓷中复合钙钛矿 Ba(X ,Y) O3系、(Zn,Sn) Ti O4系和 Ba O- Ti O2 系材料的结构和介电特性 ,分析其介电性质随结构和工艺参数的变化规律。以上系列微波介质陶瓷的烧结温度普遍较高 ,传统的介电理论不能完全解释这些材料的损耗机制。今后的发展趋势是利用复合效应来得到εr更高 ,品质因数Q值更高 。展开更多
基金supported by the National Basic Research Program of China(2014CB239700)the Program of National Natural Science Foundation of China(21501120+1 种基金21371121and 21331004)Science and Technology Commission of Shanghai Municipality(14DZ1205700 and 14DZ2250800)
文摘Porous Zn–Sn–O nanocubes with a uniform size were synthesized through a facile aqueous solution route combined with subsequent thermal treatment. The chemical composition, morphology, and microstructure of Zn–Sn–O nanocubes, which have significant effects on the lithium storage performances, were easily tuned by adjusting the calcination temperature in preparation processes of ZnSn(OH)6solid nanocubes. Further studies revealed that porous Zn–Sn–O nanocubes prepared at 600 °C exhibited a good rate capability and a high reversible capacity of 700 m Ah g^(-1)at a current density of 200 m Ag^(-1)after 50 cycles, which may be a great potential as anode materials in Lithium-ion batteries.
