NH 2 ‐GQDs‐Doped Nickel‐Cobalt Oxide Deposited on Carbon Cloth for Nonenzymatic Detection of Glucose

2019 ◽  
Vol 7 (1) ◽  
pp. 1901578 ◽  
Author(s):  
Meiyan Wu ◽  
Jiawei Zhu ◽  
Yanfang Ren ◽  
Nan Yang ◽  
Ying Hong ◽  
...  
Keyword(s):  
Cobalt Oxide ◽  
Carbon Cloth ◽  
Nickel Cobalt ◽  
Nickel Cobalt Oxide

Direct growth of ternary copper nickel cobalt oxide nanowires as binder-free electrode on carbon cloth for nonenzymatic glucose sensing

2018 ◽  
Vol 142 ◽  
pp. 343-351 ◽  
Author(s):  
Hadi Mirzaei ◽  
Ali Akbar Nasiri ◽  
Rahim Mohamadee ◽  
Hajar Yaghoobi ◽  
Mehrdad Khatami ◽  
...  
Keyword(s):  
Cobalt Oxide ◽  
Glucose Sensing ◽  
Carbon Cloth ◽  
Oxide Nanowires ◽  
Copper Nickel ◽  
Nickel Cobalt ◽  
Nickel Cobalt Oxide ◽  
Direct Growth ◽  
Binder Free

scholarly journals Hydrothermally synthesized Nickel cobalt oxide for bifunctional electrochemical supercapacitor and nonenzymatic glucose biosensor

2021 ◽  
Author(s):  
O. C. Pore ◽  
A. V. Fulari ◽  
V. J. Fulari ◽  
G. M. Lohar
Keyword(s):  
Cobalt Oxide ◽  
Glucose Biosensor ◽  
Carbon Cloth ◽  
Hydrothermal Route ◽  
Calcination Process ◽  
Oxide Nanostructures ◽  
Electrochemical Supercapacitor ◽  
Nickel Cobalt ◽  
Nickel Cobalt Oxide ◽  
Glucose Sensitivity

Abstract Herein, various nickel cobalt oxide nanostructures with different Ni concentrations are prepared via hydrothermal route and then calcination process for electrochemical supercapacitor as well as nonenzymatic glucose biosensor. The electrode synthesized on carbon cloth using Ni0.9Co2.1O4 nanosheet-like morphology showed a maximum 516.51 F g−1 specific capacitance at 10 mV s−1 scan rate and the cyclic stability of 87.7% over 2000 GCD cycles. The electrode prepared with Ni0.3Co2.7O4 on CC offered a linear response from 0 to 0.3 mM glucose concentration and exhibited a maximum of 759.5 µA mM−1 cm−2 glucose sensitivity.

scholarly journals Spinel of Nickel-Cobalt Oxide with Rod-Like Architecture as Electrocatalyst for Oxygen Evolution Reaction

Materials ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 3918
Author(s):  
Anna Dymerska ◽  
Wojciech Kukułka ◽  
Marcin Biegun ◽  
Ewa Mijowska
Keyword(s):  
Cobalt Oxide ◽  
Oxygen Evolution ◽  
Active Sites ◽  
Solvothermal Reaction ◽  
Step Method ◽  
One Pot ◽  
Widespread Application ◽  
Nickel Cobalt ◽  
Slow Kinetics ◽  
Nickel Cobalt Oxide

The renewable energy technologies require electrocatalysts for reactions, such as the oxygen and/or hydrogen evolution reaction (OER/HER). They are complex electrochemical reactions that take place through the direct transfer of electrons. However, mostly they have high over-potentials and slow kinetics, that is why they require electrocatalysts to lower the over-potential of the reactions and enhance the reaction rate. The commercially used catalysts (e.g., ruthenium nanoparticles—Ru, iridium nanoparticles—Ir, and their oxides: RuO2, IrO2, platinum—Pt) contain metals that have poor stability, and are not economically worthwhile for widespread application. Here, we propose the spinel structure of nickel-cobalt oxide (NiCo2O4) fabricated to serve as electrocatalyst for OER. These structures were obtained by a facile two-step method: (1) One-pot solvothermal reaction and subsequently (2) pyrolysis or carbonization, respectively. This material exhibits novel rod-like morphology formed by tiny spheres. The presence of transition metal particles such as Co and Ni due to their conductivity and electron configurations provides a great number of active sites, which brings superior electrochemical performance in oxygen evolution and good stability in long-term tests. Therefore, it is believed that we propose interesting low-cost material that can act as a super stable catalyst in OER.

Nickel Cobalt Oxide Nanoneedles for Electrochromic Glucose Sensors

2021 ◽  
Vol 4 (2) ◽  
pp. 2143-2152 ◽  
Author(s):  
Devesh K. Pathak ◽  
Anjali Chaudhary ◽  
Manushree Tanwar ◽  
Uttam K. Goutam ◽  
Puspen Mondal ◽  
...  
Keyword(s):  
Cobalt Oxide ◽  
Glucose Sensors ◽  
Nickel Cobalt ◽  
Nickel Cobalt Oxide

scholarly journals Back-Illuminated Si-Based Photoanode with Nickel Cobalt Oxide Catalytic Protection Layer

2016 ◽  
Vol 3 (10) ◽  
pp. 1517-1517 ◽  
Author(s):  
Dowon Bae ◽  
Bastian Mei ◽  
Rasmus Frydendal ◽  
Thomas Pedersen ◽  
Brian Seger ◽  
...  
Keyword(s):  
Cobalt Oxide ◽  
Nickel Cobalt ◽  
Nickel Cobalt Oxide ◽  
Protection Layer ◽  
Back Illuminated
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