In Situ Growing CuO/ZIF-8 into Nickel Foam to Fabricate a Binder-Free Self-Supported Glucose Biosensor

被引：14

作者：

Deng L. ^{[1
]}

Fan S. ^{[1
]}

Chen Y. ^{[1
]}

Chen J. ^{[1
]}

Mai Z. ^{[1
]}

Xiao Z. ^{[1
]}

机构：

[1] Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu

来源：

Industrial and Engineering Chemistry Research | 2022年 / 61卷 / 21期

基金：

中国国家自然科学基金;

关键词：

Copper oxides;

D O I：

10.1021/acs.iecr.2c01298

中图分类号：

学科分类号：

摘要：

A binder-free self-supported CuO/ZIF-8@NiF electrode is fabricated with CuO/ZIF-8 particles in situ growth in nickel foam pores. ZIF-8 is first assembled inside the nickel foam pores and then Cu2+ is adsorbed around the surface of ZIF-8 crystal, and finally reduced and oxidized to form CuO. Scanning electron microscopy indicates CuO is uniformly distributed on the surface of ZIF-8. The Cu element is significantly increased from 1.16 to 30.91 mg·g-1 under the existence of ZIF-8 from inductively coupled plasma results. The electrochemical analyses show that the electrochemical active surface area of the CuO/ZIF-8@NiF electrode can be increased two times while its electronic transport resistance can be reduced to one-seventh compared with the CuO/ZIF-8/NiF electrode with CuO/ZIF-8 binding on the substrate. The detection tests exhibit enhanced electrochemical properties with a sensitivity of 5640 μA·mM-1·cm-2, a low detection limitation of 0.1 μM, and a linear detection range from 0.5 to 120 μM. The biosensor presents good anti-interference property, stability, and a 101.08-104.53% recovery rate. © 2022 American Chemical Society.

引用

页码：7312 / 7321

页数：9

共 30 条

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