Can I read Conductive 2D Metal‐organic Framework (Co, NiCo, Ni) Nanosheets for Enhanced Non‐enzymatic Detection of Urea on EtoBox?

Conductive 2D Metal‐organic Framework (Co, NiCo, Ni) Nanosheets for Enhanced Non‐enzymatic Detection of Urea by Xiaoya Wang; Bingbing Liu; Jie Li; Yunyun Zhai; Haiqing Liu; Lei Li; Herui Wen is a Engineering article available to read on EtoBox.

What is Conductive 2D Metal‐organic Framework (Co, NiCo, Ni) Nanosheets for Enhanced Non‐enzymatic Detection of Urea about?

## Abstract 2D metal‐organic framework (MOF) has potential applications in electrocatalysis owing to fast mass transfer, charge transfer and large specific surface area. Here, we had prepared three conductive 2D MOF based on Ni, NiCo and Co in a simple and rapid way. The 2D nanostructure of MOF was confirmed by SEM and TEM. The chemical composition was studied by XRD, Raman and XPS spectrum. The electrochemical oxidation and detection was investigated through cyclic voltammetry and current‐time method. Their sensing performance for urea was determined by varying oxidation potentials and metal sites. The non‐enzymatic Ni‐, NiCo‐ and Co‐MOF sensors had good catalytic activity for urea. Compared with NiCo‐ and Co‐MOF, Ni‐MOF had a wider linear range (0.5–832.5 μM), high sensitivity (1960 μA mM^−1^ cm^−2^), low detection limit (0.471 μM), and fast response time. The sensors had well repeatability, reproducibility, and selectivity to specific interfering species. Furthermore, Ni‐ and NiCo‐MOF modified electrode was also applied to detection of milk samples. The results showed that the recovery was satisfactory, which further confirmed the effectiveness of non‐enzyme sensor. In general,

Who reads Conductive 2D Metal‐organic Framework (Co, NiCo, Ni) Nanosheets for Enhanced Non‐enzymatic Detection of Urea?

Author

Xiaoya Wang; Bingbing Liu; Jie Li; Yunyun Zhai; Haiqing Liu; Lei Li; Herui Wen

Publisher

Wiley

Published

2021

Language

EN

Field

Engineering (Physical Sciences)