Porous graphene network from graphene oxide: Facile self-assembly and temperature dependent structural evolution
Source abstract
Abstract
Abstract There has been increasing interest to synthesize porous graphene structures for various applications, viz. super-capacitors, photovoltaic cells and sensors due to their unique structure with interconnected network, high surface area, excellent electrical conductivity and good thermal stability. Herein, a facile and highly effective scalable method has been developed to synthesize porous graphene network (PGN) from reduced graphene oxide. PNG was synthesized by a facile process that combines the synthesis of graphene oxide (GO) by modified Hummers method and optimization of reduction temperature in ambient conditions. The morphology of the prepared samples was investigated by scanning electron microscopy. Structural transformation during reduction of GO under ambient conditions was investigated using X-ray diffraction, Fourier transform infrared spectroscopy and Raman spectroscopy. In comparison to already existing methods, these results demonstrate a very convenient and general protocol to synthesize the PGN from GO for various applications.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Graphene research and applications · Supercapacitor Materials and Fabrication · Advancements in Battery Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (61)
Show source-provided references
1. Graphene oxide as a chemically tunable platform for optical applications10.1038/nchem.907 ↗
2. Graphene oxide, highly reduced graphene oxide, and graphene: versatile building blocks for carbon-based materials10.1002/smll.200901934 ↗
3. Electric field effect in atomically thin carbon films10.1126/science.1102896 ↗
4. The rise of graphene10.1038/nmat1849 ↗
5. Superior thermal conductivity of single-layer graphene10.1021/nl0731872 ↗
6. Thermal properties of graphene and nanostructured carbon materials10.1038/nmat3064 ↗
7. Thermal properties of graphene: fundamentals and applications10.1557/mrs.2012.203 ↗
8. Reduced graphene oxide biosensor platform for the detection of NT-proBNP biomarker in its clinical range10.1016/j.bios.2018.09.102 ↗
9. Spin-coated graphene oxide as a biomaterial for Wharton’s Jelly derived mesenchymal stem cell growth: a preliminary study10.1080/10667857.2018.1515300 ↗
10. Enhancing the Hg(II) removal efficiency from real wastewater by novel thymine-grafted reduced graphene oxide complexes10.1021/acs.iecr.6b01359 ↗
11. Low temperature processed graphene thin film transparent electrodes for supercapacitor applications10.1039/C6RA17668B ↗
12. Electrically reduced graphene oxide for photovoltaic application10.1557/jmr.2019.32 ↗
13. Dual path mechanism in the thermal reduction of graphene oxide10.1021/ja205168x ↗
14. The role of oxygen during thermal reduction of graphene oxide studied by infrared absorption spectroscopy10.1021/jp2052618 ↗
15. Tuning the network structure of graphene/epoxy nanocomposites by controlling edge/basal localization of functional groups10.1021/acs.iecr.9b03607 ↗
16. A review on lattice defects in graphene: types, generation, effects and regulation10.3390/mi8050163 ↗
17. The enhancement of hall mobility and conductivity of CVD graphene through radical doping and vacuum annealing10.1039/C7RA01330B ↗
18. Structural characterization of graphene oxide: surface functional groups and fractionated oxidative debris10.3390/nano9081180 ↗
19. The correlation between electrical conductivity and second-order Raman modes of laser-reduced graphene oxide10.1039/C9CP00093C ↗
20. Influence of protons on reduction degree and defect formation in electrochemically reduced graphene oxide10.1016/j.carbon.2019.04.109 ↗
21. Thermal reduction of graphene oxide: how temperature influences purity10.1557/jmr.2018.338 ↗
22. Structural evolution during the reduction of chemically derived graphene oxide10.1038/nchem.686 ↗
23. Microwave-assisted reduction method under nitrogen atmosphere for synthesis and electrical conductivity improvement of reduced graphene oxide (rGO)10.1039/C7RA10013B ↗
24. Progress in the preparation and application of three-dimensional graphene-based porous nanocomposites10.1039/C5NR00030K ↗
25. Graphene aerogels for efficient energy storage and conversion10.1039/C7EE03031B ↗
26. Electrochemical detection of dopamine using 3D porous graphene oxide/gold nanoparticle composites10.3390/s17040861 ↗
27. Recent progress in porous graphene and reduced graphene oxide-based nanomaterials for electrochemical energy storage devices
28. Gas sensors based on assembled porous graphene multilayer frameworks for DMMP detection10.1039/C9TC02299F ↗
29. Synthesis of few-layer reduced graphene oxide for lithium-ion battery electrode materials10.1021/ie5018282 ↗
30. Macroporous ‘bubble’ graphene film via template-directed ordered-assembly for high rate supercapacitors10.1039/c2cc32189k ↗
31. Functional nanoporous graphene foams with controlled pore sizes10.1002/adma.201201680 ↗
32. 3D macroporous graphene frameworks for supercapacitors with high energy and power densities10.1021/nn3003345 ↗
33. A 3D hexaporous carbon assembled from single-layer graphene as high performance supercapacitor10.1002/cssc.201200421 ↗
34. Easy synthesis of porous graphene nanosheets and their use in supercapacitors10.1016/j.carbon.2011.12.016 ↗
35. Three-dimensional flexible and conductive interconnected graphene networks grown by chemical vapour deposition10.1038/nmat3001 ↗
36. A new type of secondary radiation10.1038/121501c0 ↗
37. A new radiation
38. Fano scattering: manifestation of acoustic phonons at the nanoscale10.1021/acs.jpclett.6b02090 ↗
39. Mapping longitudinal inhomogeneity in nanostructures using cross-sectional spatial Raman imaging10.1021/acs.jpcc.0c01393 ↗
40. Unintended deviation of fermi level from band edge in fractal silicon nanostructures: consequence of dopants’ zonal depletion10.1021/acs.jpcc.0c04350 ↗
41. Tracking dynamic doping in a solid-state electrochromic device: Raman microscopy validates the switching mechanism10.1021/acs.analchem.0c00513 ↗
42. Qualitative evolution of asymmetric Raman line-shape for nanostructures10.1007/s12633-013-9176-9 ↗
43. Raman spectroscopy for study of interplay between phonon confinement and Fano effect in silicon nanowires10.1002/jrs.4820 ↗
44. Thermal reduction of graphene oxide: how temperature influences purity10.1557/jmr.2018.338 ↗
45. The importance of interbands on the interpretation of the Raman spectrum of graphene oxide10.1021/acs.jpcc.5b01590 ↗
46. Characterization of graphite oxide after heat treatment10.1039/c2nj20833d ↗
47. Graphitization of graphene oxide with ethanol during thermal reduction10.1021/jp212584t ↗
48. Graphene oxide: efficiency of reducing agents10.1039/c3cc43612h ↗
49. Structural evolution during annealing of thermally reduced graphene nanosheets for application in supercapacitors10.1016/j.carbon.2012.03.029 ↗
50. Thin film versus paper-like reduced graphene oxide: comparative study of structural, electrical, and thermoelectrical properties10.1063/1.4958956 ↗
51. Single sheet functionalized graphene by oxidation and thermal expansion of graphite10.1021/cm0630800 ↗
52. Investigation of bandgap alteration in graphene oxide with different reduction routes10.1016/j.apsusc.2020.145396 ↗
53. Modification of physicochemical properties and boosting electrical conductivity of reduced graphene oxide aerogels by postsynthesis treatment10.1021/acs.jpcc.0c02362 ↗
54. Raman spectrum of graphite10.1063/1.1674108 ↗
55. Probing the nature of defects in graphene by Raman spectroscopy10.1021/nl300901a ↗
56. Raman spectrum of graphene and graphene layers10.1103/PhysRevLett.97.187401 ↗
57. Disentangling contributions of point and line defects in the Raman spectra of graphene-related materials
58. Raman spectrum of graphite10.1063/1.1674108 ↗
59. Temperature dependence of the Raman spectra of graphene and graphene multilayers10.1021/nl071033g ↗
60. Evolution of the Raman spectra from single-, few-, and many-layer graphene with increasing disorder10.1103/PhysRevB.82.125429 ↗
61. Visualization of defect densities in reduced graphene oxide10.1016/j.carbon.2012.03.039 ↗