N-doped carbon quantum dots @ hexagonal porous copper oxide decorated multiwall carbon nanotubes: A hybrid composite material for an efficient ultra-sensitive determination of caffeic acid

2019 ◽  
Vol 174 ◽  
pp. 106973 ◽  
Author(s):  
Ganesan Muthusankar ◽  
Murugan Sethupathi ◽  
Shen-Ming Chen ◽  
Ramadhass Keerthika Devi ◽  
Rajendran Vinoth ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Quantum Dots ◽  
Composite Material ◽  
Multiwall Carbon Nanotubes ◽  
Carbon Quantum Dots ◽  
Porous Copper ◽  
Hybrid Composite Material ◽  
Sensitive Determination ◽  
Multiwall Carbon

An innovative highly sensitive electrochemical sensor based on modified electrode with carbon quantum dots and multiwall carbon nanotubes for determination of methadone hydrochloride in real samples

2020 ◽  
Vol 12 (43) ◽  
pp. 5210-5218
Author(s):  
Behzad Rezaei ◽  
Atena Tajaddodi ◽  
Ali. A. Ensafi
Keyword(s):  
Carbon Nanotubes ◽  
Quantum Dots ◽  
Graphite Electrode ◽  
Multiwall Carbon Nanotubes ◽  
Carbon Quantum Dots ◽  
Pencil Graphite Electrode ◽  
Real Samples ◽  
Highly Sensitive ◽  
Multiwall Carbon

To enhance the properties of a pencil graphite electrode (PGE), highly functionalized carbon quantum dots (CQDs) were synthesized and mixed with multiwall carbon nanotubes (MWCNTs) as novel modifiers for the preparation of working electrodes.

Non-enzymatic electrochemical sensing platform based on metal complex immobilized carbon nanotubes for glucose determination

RSC Advances ◽  
2016 ◽  
Vol 6 (108) ◽  
pp. 107094-107103 ◽  
Author(s):  
Piyush Kumar Sonkar ◽  
Vellaichamy Ganesan ◽  
S. Abraham John ◽  
Dharmendra Kumar Yadav ◽  
Rupali Gupta
Keyword(s):  
Carbon Nanotubes ◽  
Multiwall Carbon Nanotubes ◽  
Electrochemical Sensing ◽  
Glucose Determination ◽  
Sensing Platform ◽  
New Material ◽  
Sensitive Determination ◽  
Human Blood Samples ◽  
Multiwall Carbon

Nickel salophen (where salophen is N,N′-bis(salicylidene)-1,2-phenylenediamine) is immobilized on multiwall carbon nanotubes. This new material is utilized for electrocatalytic oxidization and sensitive determination of glucose in human blood samples.

Sensitive determination of colchicine at carbon paste electrode doped with multiwall carbon nanotubes

2013 ◽  
Vol 5 (7) ◽  
pp. 1830 ◽  
Author(s):  
Kai Zhang ◽  
Jing Zhou ◽  
Jie Liu ◽  
Kunjing Li ◽  
Yinfeng Li ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Paste Electrode ◽  
Multiwall Carbon Nanotubes ◽  
Carbon Paste ◽  
Sensitive Determination ◽  
Paste Electrode ◽  
Multiwall Carbon

Determination of meloxicam in plasma samples using a highly selective and sensitive voltammetric sensor based on carbon paste electrodes modified by molecularly imprinted polymer nanoparticle–multiwall carbon nanotubes

2015 ◽  
Vol 7 (4) ◽  
pp. 1280-1292 ◽  
Author(s):  
Saman Azodi-Deilami ◽  
Ebadullah Asadi ◽  
Majid Abdouss ◽  
Fardin Ahmadi ◽  
Alireza Hassani Najafabadi ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Multiwall Carbon Nanotubes ◽  
Voltammetric Sensor ◽  
Plasma Samples ◽  
Carbon Paste ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Carbon Paste Electrodes ◽  
Multiwall Carbon

A highly selective voltammetric sensor for the determination of meloxicam using a MIP@MWCNT–CPE is introduced.

Chemically Coupled Cobalt Oxide Nanosheets Decorated onto the Surface of Multiwall Carbon Nanotubes for Favorable Oxygen Evolution Reaction

2021 ◽  
Vol 21 (4) ◽  
pp. 2660-2667
Author(s):  
Abdul Qayoom Mugheri ◽  
Aneela Tahira ◽  
Umair Aftab ◽  
Adeel Liaquat Bhatti ◽  
Ramesh Lal ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Composite Material ◽  
Cobalt Oxide ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Electrochemical Impedance ◽  
Multiwall Carbon Nanotubes ◽  
Alkaline Media ◽  
Transfer Resistance ◽  
Multiwall Carbon

Cobalt oxide has been widely investigated among potential transition metal oxides for the electrochemical energy conversion, storage, and water splitting. However, they have inherently low electronic conductivity and high corrosive nature in alkaline media. Herein, we propose a promising and facile approach to improve the conductivity and charge transport of cobalt oxide Co3O4 through chemical coupling with well-dispersed multiwall carbon nanotubes (MWCNTs) during hydrothermal treatment. The morphology of prepared composite material consisting of nanosheets which are anchored on the MWCNTs as confirmed by scanning electron microscopy (SEM). A cubic crystalline system is exhibited by the cobalt oxide as confirmed by the X-ray diffraction study. The Co, O, and C are the only elements present in the composite material. FTIR study has indicated the successful coupling of cobalt oxide with MWCNTs. The chemically coupled cobalt oxide onto the surface of MWCNTs composite is found highly active towards oxygen evolution reaction (OER) with a low onset potential 1.44 V versus RHE, low overpotential 262 mV at 10 mAcm-2 and small Tafel slope 81 mV dec-1. For continuous operation of 40 hours during durability test, no decay in activity was recorded. Electrochemical impedance study further revealed a low charge transfer resistance of 70.64 Ohms for the composite material during the electrochemical reaction and which strongly favored OER kinetics. This work provides a simple, low cost, and smartly designing electrocatalysts via hydrothermal reaction for the catalysis and energy storage applications.

Sign in / Sign up

Export Citation Format

Share Document