Chronopotentiometric Deposition of Nanocobalt Oxide for Electrochromic Auxiliary Active Electrode Application

Pathak, Devesh K.; Chaudhary, Anjali; Tanwar, Manushree; Goutam, U.K.; Pfnür, H.; Kumar, Rajesh

doi:10.1002/pssa.202000173

Cited by 14 publications

(13 citation statements)

References 39 publications

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“…Easy and accurate cyclic voltammetry (CV) measurements help to understand the oxidation process for detecting glucose with high sensitivity at a low detection limit (LOD) and help also to optimize the operation voltage for power-efficient function . The above-mentioned oxides and their nanostructures also show electrochromic properties − by exhibiting bias-dependent color modulation. − Such electrochromic devices also have the capability of helping to achieve an energy device like a supercapacitor, thus showing multifunctional properties. , Interestingly, the underlying mechanism of an electrochromic device’s operation is based on the active materials’ redox activity . Thus, developing the above-mentioned metal oxides in the appropriate nanoarchitecture may help to get a device/electrode for dual application in electrochromism and glucose sensing …”

Section: Introductionmentioning

confidence: 99%

Nickel Cobalt Oxide Nanoneedles for Electrochromic Glucose Sensors

Pathak

Chaudhary

Tanwar

et al. 2021

ACS Appl. Nano Mater.

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Uniform nanoneedles of binary oxide (Ni and Co) were synthesized on appropriate conducting substrates [fluorine-doped tin oxide (FTO) coated glass and carbon cloth (CC)] and investigated for dual application in electrochromism and glucose sensing. The prepared samples were characterized using electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and Raman spectroscopy to reveal the presence of a NiCo 2 O 4 phase. Porosity analysis was carried to assign the microporous nature of the prepared sample. Detailed electrochemical and in situ bias-dependent optical spectroscopy studies were carried out to understand various aspects related to electrochromism and glucose sensing. A low-operating-voltage (∼2 V) color modulation with 50% contrast between the whitish translucent and dark-brown colors was achieved from the nanoneedle grown on a transparent FTO substrate. Furthermore, additionally, NiCo 2 O 4 nanoneedles grown on a CC substrate, with an enhanced exposed surface area, showed selective glucose-sensing properties with a very high sensitivity of 3000 μA/mM/cm 2 , as revealed using detailed electrochemical and impedance spectroscopic measurements.

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Section: Introductionmentioning

confidence: 99%

Nickel Cobalt Oxide Nanoneedles for Electrochromic Glucose Sensors

Pathak

Chaudhary

Tanwar

et al. 2021

ACS Appl. Nano Mater.

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“…PEO solution was filtered through a 0.45 μm PTFE filter before mixing it with EV solution. The films of PB were electrochemically [42,43] deposited on ITO-coated glass substrate using Keithley 2450 workstation. Various steps involved in the formation of PB film and recipe for device fabrication are given in Supporting information (SI).…”

Section: Methodsmentioning

confidence: 99%

Improved ionic solid/viologen hybrid electrochromic device using pre‐bleached Prussian‐blue electrode

Chaudhary

Pathak

Tanwar

et al. 2021

IET Nanodielectrics

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The authors demonstrate how a simple step of loading an electrochromically active Prussian blue (PB; an ionic solid) electrode with Li + ions can help in achieving a more efficient viologen based solid state hybrid electrochromic device. To accomplish this, two different devices, with and without Li + ion loaded PB electrodes, have been fabricated. These devices have been compared in terms of their current-voltage response, bias dependent optical modulation and corresponding colour switching to establish the role of Li + ion in charge transport and charge balancing involved during bias induced redox mediated colour switching of the two devices. The Li + containing PB electrode device exhibits a superior performance with twice (40%) the value of colour contrast (20%), quick response switching (1.3 s), excellent stability (8400 s) and better power efficiency as compared to the device containing as-synthesised PB electrode. A mechanism has been proposed to explain the role of the Li + ion which is later substantiated using biasdependent in situ Raman spectroscopic evidences.This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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“…A stopwatch and four staples are needed. Coca cola with and without sugar at 10°C from thin-tall tin cans is needed as well [3] .…”

Section: Equipmentmentioning

confidence: 99%

A Comparison on the Voltage Output of Al-Cu Primary Battery with its Electrolyte being Coca Cola With and Without Sugar

2021

IMS

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<div>For the primary battery, different electrolyte will affect the voltage output of the battery. In this paper, the influence of sugar on the output voltage was studied by taking Coca Cola as an example. The results show that there is a certain difference between the effect of electrolyte with and without sugar, but the specific reason is not clear, because the formula of beverage is a secret. Further experiments are needed to draw a conclusion.</div><p> </p><p> </p>

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Chronopotentiometric Deposition of Nanocobalt Oxide for Electrochromic Auxiliary Active Electrode Application

Cited by 14 publications

References 39 publications

Nickel Cobalt Oxide Nanoneedles for Electrochromic Glucose Sensors

Nickel Cobalt Oxide Nanoneedles for Electrochromic Glucose Sensors

Improved ionic solid/viologen hybrid electrochromic device using pre‐bleached Prussian‐blue electrode

A Comparison on the Voltage Output of Al-Cu Primary Battery with its Electrolyte being Coca Cola With and Without Sugar

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