Cobalt Phosphide (Co2P) with Notable Electrocatalytic Activity Designed for Sensitive and Selective Enzymeless Bioanalysis of Hydrogen Peroxide

In this work, cobalt phosphide nanoparticles (Co 2 P NPs) were prepared by simple and mild hydrothermal method without the use of harmful phosphorous source. The morphological structure and surface component of Co 2 P were characterized by transmission electron microscopy, X-ray diffraction and X-ra...

Full description

Saved in:
Bibliographic Details
Published in:Nanoscale research letters 2021-01, Vol.16 (1), p.11-11, Article 11
Main Authors: Yin, Donghang, Tang, Junyan, Bai, Rongbiao, Yin, Shuyi, Jiang, Mengnan, Kan, Zigui, Li, Hongmei, Wang, Fei, Li, Caolong
Format: Article
Language:English
Subjects:
Amperometric sensor
Biosensors
Chemical reduction
Chemistry and Materials Science
Cobalt
Cobalt phosphide
Electrical conductivity
Electrical measurement
Electrical resistivity
Hydrogen peroxide
Indium tin oxides
Materials Science
Molecular Medicine
Morphology
Nano Express
Nanochemistry
Nanoparticles
Nanoscale Science and Technology
Nanotechnology
Nanotechnology and Microengineering
Non-enzymatic
Oxidation
Phosphides
Photoelectron spectroscopy
Photoelectrons
Reproducibility
Selectivity
Substrates
Tin
Transition metals
Transmission electron microscopy
X-ray diffraction
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this work, cobalt phosphide nanoparticles (Co 2 P NPs) were prepared by simple and mild hydrothermal method without the use of harmful phosphorous source. The morphological structure and surface component of Co 2 P were characterized by transmission electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy measurements. Considering the excellent electrocatalytic reduction activity and good electrical conductivity of transition-metal phosphide, we fabricated Co 2 P NPs on indium tin oxide (ITO) substrate (Co 2 P/ITO) for H 2 O 2 detection. The Co 2 P/ITO transducer displayed a rapid amperometric response less than 5 s, a broader response range from 0.001 to 10.0 mM and a low detection limit of 0.65 μM. In addition, the non-enzymatic Co 2 P/ITO sensor showed outstanding selectivity, reproducibility, repeatability and stability, all of which qualified the Co 2 P/ITO electrode for quite a reliable and promising biosensor for H 2 O 2 sensing.
ISSN:1931-7573
1556-276X
1556-276X
DOI:10.1186/s11671-020-03469-9