Enhanced electrochemical performance of ZnO nanorod core/polypyrrole shell arrays by graphene oxide

Prună, A.; Shao, Qi; Kamruzzaman, M.; Zapien, Juan Antonio; Ruotolo, A.

doi:10.1016/j.electacta.2015.11.087

Cited by 39 publications

(29 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Formed ZnO‐NRs/MIP‐Ppy nanocomposite showed several new peaks at 1049, 1249, 1379, 1591, 2885, 2980 and 3423 cm −1 , which are corresponding to Ppy, formed over ZnO‐NRs. Bare Ppy has absorption peaks at 792 (CH wagging), 912 (plane ring deformation), 1044 (CH in plane vibration), 1120 (CH stretching), 1204 (CN stretching), 1289 (CC stretching), 1409 (CN stretching in benzoyl ring), 1556 (CC stretching in benzoyl ring), 1719 (CN), 2852 (stretching CH2), 2926 (antisymmetric stretching CH2), and 3115–3300 cm −1 (NH stretching) . According to results, reported in other researches, the quenching and shifting of FTIR peaks of Ppy after the electrochemical deposition on ZnO point to forming of nanocomposite.…”

Section: Resultsmentioning

confidence: 53%

“…To improve selectivity, the surface of ZnO nanostructures can be effectively functionalized by different groups, which are suitable for covalent binding of biomolecules . Moreover, ZnO nanostructures are compatible with other organic nanomaterials, such as conducting polymers (CP), therefore, nanocomposites based on ZnO and conducting polymers are used for sensor design …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Photoelectrochemical Bisphenol S Sensor Based on ZnO‐Nanoroads Modified by Molecularly Imprinted Polypyrrole

Viter

Kunene

Genys

et al. 2019

Macro Chemistry & Physics

View full text Add to dashboard Cite

Molecularly imprinted polymers are important tools for the design of sensors and other molecular recognition based analytical systems. In this paper the development of a photoelectrochemical sensor for selective bisphenol determination is reported. The sensor is based on a glass/ZnO/MIP‐Ppy structure consisting of glass modified by a ZnO layer (glass/ZnO), which is functionalized by molecularly imprinted conducting polymer polypyrrole (MIP‐Ppy). The sensitivity of the sensor to bisphenol is in the range of 0.7–12.5 µm. Selectivity tests to other bisphenolic compounds are performed. Some aspects of a photoinduced response mechanism in glass/ZnO/MIP‐Ppy nanostructures are predicted and discussed.

show abstract

Section: Resultsmentioning

confidence: 53%

Section: Introductionmentioning

confidence: 99%

Photoelectrochemical Bisphenol S Sensor Based on ZnO‐Nanoroads Modified by Molecularly Imprinted Polypyrrole

Viter

Kunene

Genys

et al. 2019

Macro Chemistry & Physics

View full text Add to dashboard Cite

show abstract

“…9 In 2015 and 2016, Pruna et al have add graphene related materials into ZnO seed layer to grow ZnO nanorod array with outstanding characteristics. 10,11 In this research, we tried to incorporate reduced graphene oxide into ZnO seed layer solution to modulate the aspect ratio of the ZnO NRs on SiO 2 …”

Section: Introductionmentioning

confidence: 99%

Modulating the size of ZnO nanorods on SiO2 substrates by incorporating reduced graphene oxide into the seed layer solution

Wei

Weng

et al. 2017

AIP Advances

View full text Add to dashboard Cite

show abstract

“…[1,2] However, the inferior electrical conductivity of ZnO remains a major obstacle and limits rate capability for high power performance, thus hindering its wide applications in energy storage. [1,2] However, the inferior electrical conductivity of ZnO remains a major obstacle and limits rate capability for high power performance, thus hindering its wide applications in energy storage.…”

Section: Introductionmentioning

confidence: 99%

“…

…”

mentioning

confidence: 99%

Electrochemically Reduced Graphene Oxide‐Sheltered ZnO Nanostructures Showing Enhanced Electrochemical Performance Revealed by an In Situ Electrogravimetric Study

Gao

Demir‐Cakan

Perrot

et al. 2019

Adv Materials Inter

View full text Add to dashboard Cite

with various functional nanomaterials offering synergic properties, such as metal oxides, [5] conducting polymers [2] or carbon materials. [6][7][8][9][10][11][12] The combination of carbon materials with ZnO offers the benefits of both the electrical double layer (EDL) capacitance of the carbon materials with large specific surface area (SSA) and the faradaic contribution of the ZnO, thereby optimizing the electrochemical performance of the ZnO-based SCs. [8] Among carbon materials, graphene has spurred significant interest in electrochemical energy storage due to its high SSA, superior electronic conductivity and chemical resilience. [13][14][15] Therefore, an integration of 1D ZnO nanostructures and graphene is desirable for electrode materials. Besides, the rational design and synthesis of 1D ZnO and graphene nanostructures with a 3D interconnected morphology is another consideration for a promising SC device. Compared with the ZnO nanostructures grown on the graphene, where only upper graphene surface is available to electrolyte, a thin layer of graphene covered ZnO nanostructures is postulated to provide higher number of electroactive sites for charge storage due to the accessibility of both surfaces (upper and lower) to electrolyte, allowing for more effective charge and mass exchange. However, this unique ZnO/graphene heterostructure has rarely been studied, and rare examples include the reduced graphene oxide (rGO)/ZnO nanorods composites synthesized on graphene coated poly(ethylene terephthalate) (PET) flexible substrates, leading to the rGO/ZnO/rGO sandwich structures [16,17] and 3D ZnO (zinc oxide)/rGO/ZnO structures where the ZnO nanostructures are sandwiched or intercalated between the graphene sheets. [3] However, fundamental importance of the ionic flux into the electrode, which plays an essential role in understanding the charge-storage mechanism of a specific electrochemical system is generally underestimated. The study of such architectures with coupled methods such as coupling electrochemistry with gravimetric analysis, i.e., quartz crystal microbalance (QCM) can significantly contribute to their further development.Electrochemical quartz crystal microbalance (EQCM) has developed into a powerful in situ technique to measure ionic fluxes in different electrochemical systems, [18][19][20][21][22][23][24] in which not only the current response (ΔI) but also the in situ capturing of global gravimetric change (Δm) at the electrode/electrolyte interface is The present work is on the synthesis and characterization of vertically aligned ZnO nanostructures sheltered by electrochemically reduced graphene oxide (ERGO), i.e., ZnO@ERGO, which are directly generated on quartz resonators of microbalance sensors. The vertical orientation of the ZnO nanorods is achieved by a two-step synthesis method involving an electrochemically grown seed layer and a subsequent hydrothermal growth. Deposited ERGO thin layer turns out to be highly effective to enhance the electrochemical performances of vertically oriented Z...

show abstract

Enhanced electrochemical performance of ZnO nanorod core/polypyrrole shell arrays by graphene oxide

Cited by 39 publications

References 48 publications

Photoelectrochemical Bisphenol S Sensor Based on ZnO‐Nanoroads Modified by Molecularly Imprinted Polypyrrole

Photoelectrochemical Bisphenol S Sensor Based on ZnO‐Nanoroads Modified by Molecularly Imprinted Polypyrrole

Modulating the size of ZnO nanorods on SiO2 substrates by incorporating reduced graphene oxide into the seed layer solution

Electrochemically Reduced Graphene Oxide‐Sheltered ZnO Nanostructures Showing Enhanced Electrochemical Performance Revealed by an In Situ Electrogravimetric Study

Contact Info

Product

Resources

About