当前位置: X-MOL 学术Mater. Lett. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Nanospherical Cu2O/NiO synthesized by electrochemical dealloying as efficient electrode materials for supercapacitors
Materials Letters ( IF 3 ) Pub Date : 2020-04-01 , DOI: 10.1016/j.matlet.2020.127300
Yidong Miao , Xuping Zhang , Yanwei Sui , Enyuan Hu , Jiqiu Qi , Fuxiang Wei , Qingkun Meng , Yezeng He , Zhi Sun , Yaojian Ren , Zhenzhen Zhan

Abstract In this study, Cu2O/NiO with nanosphere structure has been successfully synthesized by dealloying a copper foil coated with Zn-Cu-Ni alloy films. First, Zn-Ni films were electrodeposited on copper foil. Next, the Zn-Cu-Ni films were produced by annealing and the Cu2O/NiO was obtained after Zn-dealloying and oxidation. Due to the advantage of the tunable nanosphere structure and dealloying synthesis method, Cu2O/NiO has excellent supercapacitor properties, such as excellent cycling stability (94.5% after 5000 cycles) and high specific capacitance (2255.5 mF/cm2 in 1 mA/cm2). These data suggested that this low-cost oxide Cu2O/NiO with nanosphere morphology synthesized by dealloying method could be a promising electrode material for supercapacitors.

中文翻译:

通过电化学脱合金合成的纳米球状 Cu2O/NiO 作为超级电容器的有效电极材料

摘要 本研究通过对镀有Zn-Cu-Ni合金薄膜的铜箔进行脱合金,成功合成了具有纳米球结构的Cu2O/NiO。首先,在铜箔上电沉积 Zn-Ni 薄膜。接下来,通过退火制备Zn-Cu-Ni薄膜,并在Zn脱合金和氧化后得到Cu2O/NiO。由于纳米球结构可调和脱合金合成方法的优势,Cu2O/NiO具有优异的超级电容器性能,如优异的循环稳定性(5000次循环后94.5%)和高比电容(1mA/cm2时为2255.5 mF/cm2)。这些数据表明,这种通过脱合金法合成的具有纳米球形态的低成本氧化物 Cu2O/NiO 可能是一种很有前途的超级电容器电极材料。
更新日期:2020-04-01
down
wechat
bug