High-Temperature Hydrogen Gas Sensor Based on Three-Dimensional Hierarchical-Nanostructured Nickel–Cobalt Oxide

2018 ◽  
Vol 1 (11) ◽  
pp. 6005-6014 ◽  
Author(s):  
Maduraiveeran Govindhan ◽  
Boopathi Sidhureddy ◽  
Aicheng Chen
Keyword(s):  
High Temperature ◽  
Cobalt Oxide ◽  
Gas Sensor ◽  
Three Dimensional ◽  
Hydrogen Gas ◽  
Nickel Cobalt ◽  
Nickel Cobalt Oxide

Nickel–Cobalt Oxide Decorated Three-Dimensional Graphene as an Enzyme Mimic for Glucose and Calcium Detection

2015 ◽  
Vol 7 (38) ◽  
pp. 21089-21094 ◽  
Author(s):  
Meiyan Wu ◽  
Shangjun Meng ◽  
Qian Wang ◽  
Weili Si ◽  
Wei Huang ◽  
...  
Keyword(s):  
Cobalt Oxide ◽  
Three Dimensional ◽  
Enzyme Mimic ◽  
Nickel Cobalt ◽  
Nickel Cobalt Oxide ◽  
Calcium Detection

scholarly journals Synthesis of Three Dimensional Nickel Cobalt Oxide Nanoneedles on Nickel Foam, Their Characterization and Glucose Sensing Application

Sensors ◽  
2014 ◽  
Vol 14 (3) ◽  
pp. 5415-5425 ◽  
Author(s):  
Mushtaque Hussain ◽  
Zafar Ibupoto ◽  
Mazhar Abbasi ◽  
Xianjie Liu ◽  
Omer Nur ◽  
...  
Keyword(s):  
Cobalt Oxide ◽  
Nickel Foam ◽  
Three Dimensional ◽  
Glucose Sensing ◽  
Nickel Cobalt ◽  
Nickel Cobalt Oxide ◽  
Sensing Application

A three-dimensional nickel–cobalt oxide nanomaterial as an enzyme-mimetic electrocatalyst for the glucose and lactic acid oxidation reaction

2019 ◽  
Vol 43 (37) ◽  
pp. 14756-14762 ◽  
Author(s):  
Rajasekaran Elakkiya ◽  
Govindhan Maduraiveeran
Keyword(s):  
Lactic Acid ◽  
Cobalt Oxide ◽  
Oxidation Reaction ◽  
Three Dimensional ◽  
Acid Oxidation ◽  
Nickel Cobalt ◽  
Enzyme Mimicking ◽  
Nickel Cobalt Oxide ◽  
Oxidation Of Glucose ◽  
Highly Porous

Here we demonstrate a highly porous three-dimensional nickel–cobalt oxide (NiCo2O4) nanomaterial as a potential glucose oxidase (GOx) enzyme-mimicking catalyst for the electrochemical oxidation of glucose and lactic acid in alkaline medium.

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
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