三氧化钼
兴奋剂
电化学
材料科学
钼
金属
电解质
热液循环
无机化学
过渡金属
形态学(生物学)
化学工程
化学
电极
冶金
物理化学
催化作用
工程类
生物
生物化学
遗传学
光电子学
作者
Xia Zhang,Yuan Xu,Danqing Li,Yujun Zhang
标识
DOI:10.1016/j.electacta.2018.06.166
摘要
Transition metal elements (Ni, Cu, Mn, Co and Cr) have been doped into the host structure of molybdenum trioxide via in situ hydrothermal method. The characterizations indicate that Ni and Cu doping has no influence on the structure of the host MoO3 while Co and Cr doping not only cause the crystalline phase transformation but also leads to the morphology change of the doped MoO3. These crystalline and morphology alteration have great impact on the electrochemical performance of the doped samples. The electrochemical tests demonstrate that the specific capacitance and the rate capability are enhanced after Ni, Cu and Mn doping while decline after Co and Cr doping, which may be caused by the structure and morphology change of MoO3 as well as the formation of SEI (solid electrolyte interface) layer after Cr doping. The results manifest that metal ions doping has great impact on the electrochemical property of host materials.
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