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绒球状β-氢氧化镍微米球的可控合成及其电化学性能 被引量:2

Synthesis and Electrochemical Properties of Pompon-like β-Ni(OH)_2 Microspheres
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摘要 首次报道通过一种聚苯乙烯磺酸钠(PSS)和三嵌段共聚物(P123)辅助的水热法,以Ni(NO3)2为原料,合成了新颖的绒球状β-氢氧化镍微米球(P1),其结构和形貌经X-射线衍射、扫描电镜和透射电镜表征。电化学测试结果表明:P1具有良好的电化学性质,在1 A·g-1电流密度下,电容量达1 214 F·g-1,经过1 000次循环后其容量可保持90%以上。 The novel self-assembled pompon-like β-Ni (OH) 2 microspheres ( p1 ) was synthesized for the first time, by the hydrothermal reaction of Ni (NO3 )2 with the assistance of sodium poly(4-styrene- sulfonate) (PSS) and triblock copolymer Pluronic ( P123 ) as the morphological controling suffactants. The structures and morphology were characterized by XRD, SEM and TEM. The electrochemical prop-erties of p1 were studied. The results showed that P1 exhibited excellent capacitance behavior with cou- lombic efficiency of 1 214 F·g^-1 at a charge/discharge current density of 1 A·g^-1 and an almost 90% coulombic efficiency after 1 000 cycles.
作者 刘正 LIU Zheng(Chengdu Jufeng Glass Co. , Ltd. , Chengdu 610300, China)
出处 《合成化学》 CAS CSCD 2016年第10期861-865,共5页 Chinese Journal of Synthetic Chemistry
关键词 聚苯乙烯磺酸钠 三嵌段共聚物 水热法 绒球状β-氢氧化镍微米球 可控合成 电化学性质 超级电容器 sodium poly (4-styrenesulfonate) triblock copolymer hydrothermal method pompon-like β-Ni (OH) 2 microsphere controllabe synthesis electrochemical property supercapacitor
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