Nitrogen-Doped Carbon Nanotubes: High Electrocatalytic Activity toward the Oxidation of Hydrogen Peroxide and Its Application for Biosensing

ACS Nano ◽  
2010 ◽  
Vol 4 (7) ◽  
pp. 4292-4298 ◽  
Author(s):  
Xuan Xu ◽  
Shujuan Jiang ◽  
Zheng Hu ◽  
Songqin Liu
2013 ◽  
Vol 117 (48) ◽  
pp. 25213-25221 ◽  
Author(s):  
Yifan Tang ◽  
Seth C. Burkert ◽  
Yong Zhao ◽  
Wissam A. Saidi ◽  
Alexander Star

Sensors ◽  
2019 ◽  
Vol 19 (17) ◽  
pp. 3741
Author(s):  
Chidiebere I. Ogbu ◽  
Xu Feng ◽  
Samson N. Dada ◽  
Gregory W. Bishop

Nitrogen-doped carbon materials have garnered much interest due to their electrocatalytic activity towards important reactions such as the reduction of hydrogen peroxide. N-doped carbon materials are typically prepared and deposited on solid conductive supports, which can sometimes involve time-consuming, complex, and/or costly procedures. Here, nitrogen-doped screen-printed carbon electrodes (N-SPCEs) were fabricated directly from a lab-formulated ink composed of graphite that was modified with surface nitrogen groups by a simple soft nitriding technique. N-SPCEs prepared from inexpensive starting materials (graphite powder and urea) demonstrated good electrocatalytic activity towards hydrogen peroxide reduction. Amperometric detection of H2O2 using N-SPCEs with an applied potential of −0.4 V (vs. Ag/AgCl) exhibited good reproducibility and stability as well as a reasonable limit of detection (2.5 µM) and wide linear range (0.020 to 5.3 mM).


Author(s):  
Divyani Gupta ◽  
Sudip Chakraborty ◽  
Rodrigo G. Amorim ◽  
Rajeev Ahuja ◽  
Tharamani Chikka Nagaiah

Nitrogen-doped carbon nanotubes (NCNTs) were synthesized by treating HNO3-oxidized carbon nanotubes (CNTs) in NH3 flow at different temperatures. PtRu nanoparticles were decorated over NCNTs. The PtRu catalysts were prepared by...


2013 ◽  
Vol 5 (1) ◽  
pp. 87-95 ◽  
Author(s):  
Nikos G. Tsierkezos ◽  
Uwe Ritter ◽  
Andrea Knauer ◽  
Paweł Szroeder

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