非阻塞I/O
静电纺丝
材料科学
煅烧
化学工程
纳米纤维
电极
异质结
同轴
比表面积
纳米技术
催化作用
复合材料
光电子学
化学
有机化学
电气工程
工程类
物理化学
聚合物
作者
Mengjie Li,Huan Ke,Dongmei Deng,Xiaoxia Yan,Yuanyuan Li,Liqiang Luo
标识
DOI:10.1016/j.colsurfb.2022.113047
摘要
Nanofibers (NFs) have found wide applications by virtue of their particular morphology and high specific surface area. In this study, size-tunable hollow CuO/NiO NFs were synthesized by coaxial electrospinning and subsequent calcination. The synthesized hollow CuO/NiO NFs owned large specific surface area for catalytic active sites. In addition, the formation of heterostructure interface between CuO and NiO was beneficial to improve the electrocatalytic performance. As non-enzymatic electrode material, the synthesized CuO/NiO NFs exhibited superior electrocatalytic capability for glucose oxidation. When the molar ratio of CuO to NiO is 0.4, the composite NFs achieved the optimal electrocatalytic ability for glucose oxidation, performing high sensitivity of 1324.17 μA mM−1 cm−2 and wide liner range from 1 to 10,000 μM. The constructed electrode has been utilized to detect glucose concentration in real serum with excellent recovery, indicating that CuO/NiO hollow heterostructured NFs are promising materials for biomedical applications.
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