Reduced graphene oxide-CuFe2O4 nanocomposite: A highly sensitive room temperature NH3 gas sensor

Achary, L. Satish K.; Kumar, Aniket; Barik, Bapun; Nayak, Pratap S.; Tripathy, N.; Kar, Jyoti Prakash; Dash, Priyabrat

doi:10.1016/j.snb.2018.05.093

Cited by 121 publications

(39 citation statements)

References 52 publications

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“…Graphene oxide was synthesized from natural graphite flakes by Hummers' method which was further used to prepare rGO-CuFe 2 O 4 nanocomposite by combustion method [50]. In this process, sonicated GO was dissolved with 1:2 ratio of [32,43].…”

Section: Synthesis Of Graphene/0-d Metal Oxides Compositesmentioning

confidence: 99%

See 1 more Smart Citation

A Review on Metal Oxide-Graphene Derivative Nano-Composite Thin Film Gas Sensors

Hazra¹,

Samane²,

Basu³

2020

Multilayer Thin Films - Versatile Applications for Materials Engineering

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Most of the available commercial solid-state gas/vapor sensors are based on metal oxide semiconductors. Metal oxides (MOs) change their conductivity while exposed to gas or vapors ambient can be utilized as gas or vapor sensing materials. In recent days, graphene has attracted tremendous attention owing to its twodimensional structure with an extremely high surface to volume ratio, electron mobility, and thermal conductivity. However, intrinsic graphene is relatively inefficient for the adsorption of gas/vapor molecules. In this regard, graphene oxide (GO) and reduced graphene oxide (rGO), which are graphene species functionalized with different oxygen groups that offer a higher amount of adsorption sites improving the sensitivity of the film. Up to now, many research groups across the globe have reported the promising performance towards gas detection using various GO/rGO-metal oxide nanocomposites. This chapter reviews the composites of graphene oxide or reduced graphene oxide and metal oxides in nanoscale dimensions (0-D, 1-D, 2-D, and 3-D) for gas sensing applications considering two specific focus areas, that is, synthesis of nanocomposites and performance assessment for gas/vapor sensing.

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Section: Synthesis Of Graphene/0-d Metal Oxides Compositesmentioning

confidence: 99%

“…SEM images of (a) ZnO QDs/graphene nanocomposites [46], (b) rGO-Fe 3 O 4 nanoparticles [48] synthesized by facile solution-processed method. TEM images of (c) rGO-CuFe 2 O 4 by combustion method [50] and (d) microwave assisted rGO-SnO 2 nanparticles composites [51].…”

Section: Synthesis Of Graphene/1-d Metal Oxides Compositesmentioning

confidence: 99%

A Review on Metal Oxide-Graphene Derivative Nano-Composite Thin Film Gas Sensors

Hazra¹,

Samane²,

Basu³

2020

Multilayer Thin Films - Versatile Applications for Materials Engineering

View full text Add to dashboard Cite

show abstract

“…Graphene-based materials (namely graphene, GO and rGO) have been seen extensive usages in various gas sensors. Particularly, rGO with inherent characteristics including excellent stability, large theoretical specific surface area and structural defects on surface, is capable of offering increased binding sites for gas adsorption [18][19][20]. In addition, rGO are commonly obtained by means of reducing GO through reactive reductants like hydrazine, sodium borohydride and hydriodic acid [21].…”

Section: Introductionmentioning

confidence: 99%

Multifunctional sodium alginate fabric based on reduced graphene oxide and polypyrrole for wearable closed-loop point-of-care application

Hou

2021

Chemical Engineering Journal

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“…The addition of graphene has been demonstrated to enhance certain properties of nanocomposites, such as thermal stability, electrochemical activity or mechanical strength and electrical conductivity [3]. Non-biomedical applications for graphenic materials include anodes for Li-ion batteries [4,5], gas sensors [6] or electrochemical supercapacitors [7]. Apart from those, biomedical applications have been developed, such as biosensor devices with high specificity [8,9], scaffolds for cellular growth [10] or tissue engineering [11].…”

Section: Introductionmentioning

confidence: 99%

Novel Bovine Serum Albumin Protein Backbone Reassembly Study: Strongly Twisted β-Sheet Structure Promotion upon Interaction with GO-PAMAM

et al. 2020

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This study investigates the formation of a graphene oxide-polyamidoamine dendrimer complex (GO-PAMAM) and its association and interaction with bovine serum albumin (BSA). Fourier-transform infrared spectrometry and X-ray photoelectron spectrometry indicated the formation of covalent linkage between the GO surface and PAMAM with 7.22% nitrogen content in the GO-PAMAM sample, and various interactions between BSA and GO-PAMAM, including π-π* interactions at 291.5 eV for the binding energy value. Thermogravimetric analysis highlighted the increasing thermal stability throughout the modification process, from 151 to 192 °C for the 10% weight loss temperature. Raman spectrometry and X-ray diffraction analysis were used in order to examine the complexes’ assembly, showing a prominent (0 0 2) lattice in GO-PAMAM. Dynamic light scattering tests proved the formation of stable graphenic and graphenic-protein aggregates. The secondary structure rearrangement of BSA after interaction with GO-PAMAM was investigated using circular dichroism spectroscopy. We have observed a shift from 10.9% β-sheet composition in native BSA to 64.9% β-sheet composition after the interaction with GO-PAMAM. This interaction promoted the rearrangement of the protein backbone, leading to strongly twisted β-sheet secondary structure architecture.

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Reduced graphene oxide-CuFe2O4 nanocomposite: A highly sensitive room temperature NH3 gas sensor

Cited by 121 publications

References 52 publications

A Review on Metal Oxide-Graphene Derivative Nano-Composite Thin Film Gas Sensors

A Review on Metal Oxide-Graphene Derivative Nano-Composite Thin Film Gas Sensors

Multifunctional sodium alginate fabric based on reduced graphene oxide and polypyrrole for wearable closed-loop point-of-care application

Novel Bovine Serum Albumin Protein Backbone Reassembly Study: Strongly Twisted β-Sheet Structure Promotion upon Interaction with GO-PAMAM

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