摘要
以氯化钴和黄磷为主要原料,以十六烷基三甲基溴化铵(CTAB)为结构导向剂,采用微波水热法制备了一维磷化钴(Co_2P)纳米线。研究了表面活性剂及其加入量对合成Co_2P相结构和形貌的影响及电化学性能。利用X射线衍射仪(XRD)、扫描电子显微镜(SEM)和透射电子显微镜(TEM)对产物的物相和显微结构进行表征。结果表明:引入表面活性剂均可以使试样中生成一维Co_2P纳米结构,添加CTAB的试样中生成了大量的Co_2P纳米线,其直径约为50~200 nm,产率和长径比均随着CTAB加入量的增加而增加。电化学性能结果表明,Co_2P纳米线具有赝电容特性,循环稳定性较好,1000次循环后比电容保持率为68%。
One-dimensional Co_2 P nanowires were synthesized by microwave hydrothermal(MWH) method using Co Cl_2·6 H_2 O and yellow phosphorus as raw materials, and CTAB surfactant as a structure-directed agent. The effect of surfactants on the Co_2 P nanostructures was studied. As-synthesized nanowires were characterized by XRD, SEM, and TEM. The results show that one-dimensional Co_2 P nanostructures are synthesized with the presence of surfactants, and a number of Co_2 P nanowires with 50~200 nm in diameter are obtained using CTAB. The yield and length of Co_2 P nanowires are increased with the increase of CTAB contents. The electrochemical properties indicate that Co_2 P nanowires have typical pseudo-capacitive characteristics and remain capacitance retention of 68 % after 1000 cycles.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2018年第S1期269-272,共4页
Rare Metal Materials and Engineering
基金
国家自然科学基金(51502216
51472184
51472185)
关键词
微波水热
磷化钴
电化学性能
显微结构
microwave hydrothermal method
Co2P
electrochemical properties
microstructure
