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 ◽  
...  
2020 ◽  
Vol 31 (43) ◽  
pp. 435707
Author(s):  
Zewei Hao ◽  
Pengkun Wei ◽  
Hongzhi Kang ◽  
Yang Yang ◽  
Jing Li ◽  
...  

2019 ◽  
Vol 7 (1) ◽  
pp. 1901578 ◽  
Author(s):  
Meiyan Wu ◽  
Jiawei Zhu ◽  
Yanfang Ren ◽  
Nan Yang ◽  
Ying Hong ◽  
...  

Sensors ◽  
2014 ◽  
Vol 14 (3) ◽  
pp. 5415-5425 ◽  
Author(s):  
Mushtaque Hussain ◽  
Zafar Ibupoto ◽  
Mazhar Abbasi ◽  
Xianjie Liu ◽  
Omer Nur ◽  
...  

Nano Energy ◽  
2014 ◽  
Vol 3 ◽  
pp. 119-126 ◽  
Author(s):  
Xu Wang ◽  
Chaoyi Yan ◽  
Afriyanti Sumboja ◽  
Pooi See Lee

2021 ◽  
Author(s):  
O. C. Pore ◽  
A. V. Fulari ◽  
V. J. Fulari ◽  
G. M. Lohar

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.


Materials ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 3918
Author(s):  
Anna Dymerska ◽  
Wojciech Kukułka ◽  
Marcin Biegun ◽  
Ewa Mijowska

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.


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