Mass Ratio Of Graphene Oxide Research Articles

Fabrication of PEI modified GO/MXene composite membrane and its application in removing metal cations from water

The instability and low permeability of graphene oxide (GO) membranes in water treatment limit their wide application. In this study, we described the fabrication and testing of GO/MXene composite membranes modified by polyethylenimine (PEI). The unique structure of the composite membranes exhibited a synergistic effect in terms of water permeability and metal cation rejection, which varied with the mass ratio of GO and MXene. The composite membranes with a GO/MXene mass ratio of 1: 4 exhibited a higher water permeability (9.5 ± 0.4 L m−2 h−1 bar−1). The PEI modified composite membrane had a rejection of over 70% for Ca2+ and Mg2+, which was about 7 times higher than that of the GO membranes. The removal mechanism of the PEI modified GO/MXene composite membrane on metal ions mainly involved steric effect and electrostatic effect. This kind of modified membrane has great potential in water softening.

Stable conge red doped poly (3,4-ethylene dioxythiophene)/graphene oxide composite as electrode material for high-performance asymmetric supercapacitors

Congo red doped poly (3,4-ethylene dioxythiophene)/graphene oxide (GO/CR-PEDOT) composite was prepared by simple chemical oxidation method, where Congo red doped poly (3,4-ethylene dioxythiophene) (CR-PEDOT) evenly and stably coated on the surface of graphene oxide (GO) under the guidance and connection of congo red (CR), respectively. Therefore, GO with a large specific surface area could bring into full play its function as a supporting skeleton to decrease the degree of volume expansion and shrinkage of GO/CR-PEDOT composite in charge/discharge process and improve its specific capacitance and cycle stability. The results showed that the maximum specific capacitance of GO/CR-PEDOT composite was up to 227 F/g when the feeding mass ratio of GO to 3,4-ethylene dioxythiophene was 1:1, which was 110% higher than that of poly (3,4-ethylene dioxythiophene) (PEDOT), and the capacitance retention was 92.3 % after 10,000 cycles. Furthermore, a model of asymmetric supercapacitor was fabricated by using GO/CR-PEDOT composite as positive material, activated carbon as negative material and 1 mol/L Na2SO4 as electrolyte, which exhibited that the energy density was as high as 14.4 Wh/kg when the power density was 996 W/kg and still achieved 9.11 Wh/kg at a high power density of 7999 W/kg.

3D core-shell poly(aniline-co-pyrrole)/reduced graphene oxide composite for supercapacitor performance

Due to favourable pseudo-capacitive performance, the polyaniline and polypyrrole are highly potential candidates for supercapacitor applications. In this study, core-shell poly(aniline-co-pyrrole) is prepared by in-situ chemical polymerization of pyrrole in the presence of polyaniline nanofibers. Poly(aniline-co-pyrrole) is mixed with the suspension of graphene oxide to prepare three-dimensional core-shell poly(aniline-co-pyrrole)/reduced graphene oxide composite using hydrothermal method. The as-synthesized samples are characterized by X-ray diffraction, Scanning electronic microscopy, Transmission electron microscope, FTIR spectroscopy, Raman spectroscopy and electrochemical measurements for the morphology, structure and supercapacitor performance of the composite. Results show that poly(aniline-co-pyrrole) is inlaid into the three-dimensional reduced graphene oxide. Poly(aniline-co-pyrrole)/reduced graphene oxide exhibits superior supercapacitor performance among the composites, benefiting from its unique composite structures, innate electrochemical properties and the synergistic effect of three-dimensional reduced graphene oxide and poly(aniline-co-pyrrole). The maximum specific capacitance of three-dimensional core-shell poly(aniline-co-pyrrole)/reduced graphene oxide composite prepared at a mass ratio of graphene oxide and poly(aniline-co-pyrrole) of 0.9:1 is 684.5 F·g−1 at a current density of 1 A·g−1. Even at a current density of 20 A·g−1, the specific capacitance still reaches 417 F·g−1. The capacitance retention of three-dimensional core-shell poly(aniline-co-pyrrole)/reduced graphene oxide electrode is 88% after 1000 charge and discharge cycles, showing excellent supercapacitor performance.

Printability study of self-supporting graphene oxide-laponite nanocomposites for 3D printing applications

Graphene, a two-dimensional (2D) carbon allotrope, has been widely used in various fields due to its excellent inherent properties. Graphene and its derivatives usually possess poor printability, which makes it challenging to create three-dimensional (3D) structures. The objective of this work is to investigate a nanoclay-assisted 3D printing approach to print 3D structures from self-supporting graphene oxide (GO)-laponite nanocomposites. Due to the physical crosslinking between nanoclay and GO, the resulted nanocomposites can be directly printed into complex geometries in air. A significantly large range of laponite to GO mass ratio (5.00 to 32.00) was achieved by a mixing and centrifuging method as compared to previously reported GO-laponite composites made by the solvent evaporation method. It is found that the concentrations of nanoclay additives and GO can significantly affect the extrudability. In addition, the formability of the extruded filaments was studied by assessing the filament shapes/dimensions as well as the filament deflections when printing between supporting structures. Our results show that operating conditions such as dispensing pressure, path speed, nozzle diameter, and stand-off distance can be used to control the width of printed filaments on a substrate. Due to the self-supporting property of the proposed GO-laponite nanocomposites, it is possible to form continuous filaments with negligible deflections between supporting structures. Thus, 3D scaffolds with well-defined shape and controllable geometries have been successfully fabricated, which proves the proposed nanoclay-assisted 3D printing technology to achieve complex 3D graphene structures is feasible.

Enhanced sulfur redox kinetics and polysulfide regulations with petal-like nickel hydroxide nanosheets/rGO modified separators in Li-S batteries

Li-S batteries have been regarded as one of the most prospective energy-storage systems because of its high-energy-density. To suppress the shuttling effect of dissolved lithium polysulfides, different mass ratios petal-like nickel hydroxide nanosheets (NHN) decorated reduced graphene oxide (rGO) materials are synthesized in this study using a one-step hydrothermal method and applied modified separators in Li-S batteries. With up to 73.5 wt% of sulfur content in the cathode, the optimized sample (the mass ratio of graphene oxide to nickel nitrate is 1:9) enables discharge capacities up to 1579 mAh g−1 at 0.2 C (the areal sulfur loading is 5 mg cm−2). The cell also exhibits a retention of 840 mAh g−1 in specific capacity after 200 cycles, exhibiting higher utilizations and better cycling stabilities for Li-S batteries. Electrochemical measurements and density functional theory (DFT) calculations prove that NHN plays a critical role in promoting the redox reaction kinetics of Li-S batteries, and the high conductivity of rGO enhances the electrochemical function of NHN. This study provides a low cost approach for the developments of modified separators in future practical Li-S batteries.

Preparation of high electrochemical activity Pd/RGO composites on the microemulsion interface through radiation technique

Radiation techniques, with their advantages of being clean, economical, and efficient, have been widely studied for the synthesis of nanocomposites. In this study, reduced graphene loading palladium nanoparticles (Pd/RGO) were prepared in situ in a single step at the phase interface of an ionic liquid (IL)-based microemulsion of these nanoparticles exposed to a high-energy electron beam. The influence of the radiation dose and initial mass ratio of graphene oxide (GO) and PdCl2 were studied. In addition, the effect of the length of the alkyl chain of the IL on the shape and Pd nanoparticle content of Pd/RGO composites, as well as their electrochemical activity, were investigated in detail. The radiation dose did not affect the shape of the Pd nanoparticles but increased the Pd nanoparticle content of the Pd/RGO composites when the dose exceeded 80 kGy. The Pd nanoparticle content of the Pd/RGO composites decreased as the alkyl chain length of the ILs and the initial mass ratio of GO and PdCl2 increased. Both the Pd nanoparticle content and their distribution in the Pd/RGO composites have a great influence on their electrochemical performance. Finally, Pd/RGO composites with excellent electrochemical activity were produced efficiently by using the radiation technique. This study provides a basis for the synthesis of carbon-based noble metal nanocomposites using a simple clean and efficient method.

Preparation of polylactic acid/TiO2/GO nano-fibrous films and their preservation effect on green peppers

Polylactic acid (PLA)/nano-TiO2(TiO2 NPs)/Graphene oxide (GO) nano-fibrous films were prepared by ultrasonic assisted electrostatic spinning technology, and the effects of TiO2 NPs:GO mass ratio and ultrasonic power on film morphology and mechanical, thermal, barrier and antibacterial properties were investigated. The addition of TiO2 NPs and GO can significantly increase the tensile strength and elongation at the break of PLA nano-fibrous films, and improve the water barrier properties of the nano-fibrous films. The antibacterial experiment showed that the inhibition rates of the nano-fibrous films against Escherichia coli and Staphylococcus aureus after 24 h exposure to UV irradiation reached 94.4 ± 1.8% and 92.6 ± 1.7% At the same time, the fresh-keeping packaging experiment of green peppers at room temperature, through the determination of hardness, soluble solids, chlorophyll content to determine the degree of decay of green pepper, it showed that PLA/TiO2 NPs/GO nano-fibrous films can better maintain the sensory quality of green peppers, delay the rate of spoilage of green peppers, and prolong the preservation period of green peppers.

Graphene oxide/brush-like polysaccharide copolymer nanohybrids as eco-friendly additives for water-based lubrication

In this work, a novel hybrid additive for water-based lubrication combining graphene oxide (GO) and brush-like chitosan-based copolymer (chitosan-graft-poly (N-isopropylacrylamide), Chitosan-g-PNIPAM) was developed. The GO/Chitosan-g-PNIPAM nanohybrids were fabricated by a facile in-situ non-covalent assembly strategy. The tribological performance of nanohybrids with different mass ratios of GO and copolymer was investigated. The results demonstrated superior friction-reducing and anti-wear properties at high contact load condition. It could reduce the mean coefficient of friction (COF) by 40% compared with pristine GO and by 84% compared with individual copolymer. Meanwhile, the wear rate was also decreased by 15% and 47%, respectively. Furthermore, this work provides a novel approach to develop green nanoadditives for water-based lubrication through rational combination of 2D materials and brush-like copolymer.

Ti3C2Tx/rGO porous composite films with superior electromagnetic interference shielding performances

Inspired by successful construction of porous structure between graphene layers and the similarity in structures of Ti3C2Tx and graphene, a novel method was proposed to prepare Ti3C2Tx-based porous electromagnetic interference (EMI) shielding composite films with the assistance of graphene oxide (GO). Ti3C2Tx/rGO porous EMI shielding composite films were then prepared by ion-induced self-assembly & vacuum-assisted filtration. The structure of Ti3C2Tx/rGO porous composite films presented to be dense in surface and porous inside. Due to the synergy of high electrical conductivity (σ) and porous structure, when the mass ratio of GO to Ti3C2Tx was 2:2, the EMI shielding effectiveness (SE) of Ti3C2Tx/rGO porous composite films reached the maximum (59 dB), and the corresponding specific SE (SSE/t) reached 37619 dB cm2 g−1 (the highest value reported in similar materials). Meanwhile, the obtained Ti3C2Tx/rGO porous composite films were more hydrophobic than Ti3C2Tx film, beneficial for reducing the oxidation caused by water agglomeration on surface. Our prepared Ti3C2Tx/rGO porous composite films present superior thermal stability, σ & EMI shielding performance and environmental stability, which show great potential application in the fields of ultra-thin, light and flexible EMI shielding materials as well as highly sensitive and flexible instruments and equipments.

Facile and environmental-friendly preparation of alkynyl-functionalized graphene oxide by epoxy ring-opening

Alkynyl-functionalized graphene oxide (A-GO) is an integral part of the click chemistry of graphene. However, this kind of functionalization often occurs in organic solvent system. In this study, a simple method was used to prepare alkynyl-functionalized graphene oxide under mild and environmental-friendly conditions. The results showed that graphene oxide was successfully modified by propargylamine. When the mass ratio of graphene oxide to propargylamine is 1:4, the highest grafting rate is 4.91%. The resulting sample became rougher in microscopic morphology, but still had a lamellar structure. In addition, it can be obtained from XPS that in addition to the ring-opening reaction between the epoxy group and the amino group, there is also the interaction between the carboxyl group and alkynyl ammonium. The present work provides a facile and environmental-friendly strategy toward alkynyl-functionalized graphene oxide.

Hyperelastic magnetic reduced graphene oxide three-dimensional framework with superb oil and organic solvent adsorption capability

Three-dimensional (3D) porous network materials with large pore volume, high specific surface area, and controllable porosity have potential application in wastewater treatment. This work aims to develop a novel hyperelastic and ultra-light magnetic reduced graphene oxide (rGO-Fe3O4) 3D framework with a density of 4.52 mg cm−3 through a covalent bond of aminated nanomagnetite (Fe3O4-NH2) onto graphene oxide (GO) and subsequent reduction. This 3D framework exhibited high adsorption capacities to ethyl acetate (215.8 ± 11.8 g g−1), cyclohexane (239.7 ± 9.9 g g−1), acetone (149.1 ± 6.5 g g−1), dichloromethane (308.0 ± 16.4 g g−1), and sesame oil (204.7 ± 10.2 g g−1), which were much higher than those of pure rGO aerogel (45.6 ± 2.3 g g−1 to ethyl acetate). Meanwhile, the 3D framework demonstrated superelastic mechanical properties with a 100% recoverability during the cyclic compression loading tests under an optimal fabrication condition of 1 mg mL−1 GO concentration and 3:1 mass ratio of GO to Fe3O4-NH2 nanoparticles. Most importantly, this rGO-Fe3O4 3D framework could achieve an effective oil/water separation within only 25 s and maintained an outstanding adsorption capability to ethyl acetate after 10 cycles of the adsorption/desorption process without any obvious change, depicting an excellent recyclability and reusability. This work aims to provide a promising material for environmental control and oil/organic solvent adsorption. Graphical abstract

Preparation of the lead-free graphene-glass frit composites for crystalline silicon solar cells and investigation of performance

The lead-free glass frit is prepared by melt-quenching method, and then the graphene oxide (GO) was sufficiently mixed with the glass frit. Finally, by a reduction reaction, the lead-free graphene-glass frit composites is obtained. When the reducing agent selected is diethylene glycol, scanning electron microscope (SEM) analysis shows that graphene is evenly compounded in the glass frit. When the composites are put into use to the front contact electrode of the crystalline silicon solar cells, the mass ratio of graphene oxide to the lead-free glass frit is preferably 0.05. At this time, due to the sheet-like structural characteristics of the graphene, the gap left by the shrinkage of the silver paste is well filled after the printing and sintering, so that the surface of the silver grid line is the smoothest, dense, and the tensile force with the silicon substrate is also the largest. The series resistance Rs of the battery is significantly lowered, and the photoelectric conversion efficiency Eff of the solar cell is improved.

Combined effect of chemically compound graphene oxide‐calcium pimelate on crystallization behavior, morphology and mechanical properties of isotactic polypropylene

AbstractThe combined nucleation effect of graphene oxide (GO) and calcium pimelate (CaPi) which are chemically compound together (expressed in GO − CaPi) in isotactic polypropylene (iPP) was investigated. Fourier transform infrared (FTIR), X‐ray diffraction (XRD) and thermogravimetric analysis (TGA) verified that CaPi was chemically compound with GO by chelate bonds. The crystallization behavior and crystalline morphologies of iPP nucleated with different mass ratio of GO and CaPi were investigated. The crystallization peak temperature of iPP nucleated with 0.2 wt% GO − CaPi with the mass ratio of 1:5 (GO1 − C5) was increased by 8.3°C when compared with that of pure iPP, and the relative content of β‐crystal reached up to 0.7962. Whereas, the crystallization peak temperature of iPP nucleated with 0.2 wt% GO and CaPi which are blended together by mechanical force (expressed in GO + CaPi) with the mass ratio of 1:5 (GO1 + C5) was only increased by 5.0°C. It was attributed to that the aggregation of GO + CaPi caused the decrease of the crystallization peak temperature, while the GO1 − C5 uniformly dispersed in the iPP matrix. Unexpectedly, the relative content of β‐crystal of iPP nucleated with 0.02 wt% GO1 − C5 reached up to 0.8094, and the crystallization peak temperature was increased by 6.7°C compared with that of pure iPP. Meanwhile, the impact strength, tensile strength and heat deflection temperature of iPP nucleated with 0.02 wt% GO1 − C5 increased by almost 45.86%, 2.03% and 7.7°C, respectively. The iPP nucleated with GO1 − C5 obtained a balance between stiffness and toughness and the thermo‐mechanical property of nucleated iPP was improved.

Hierarchical three-dimensional MoS2/GO hybrid nanostructures for triethylamine-sensing applications with high sensitivity and selectivity

MoS2/GO nanocomposites with a three-dimensional (3D) microstructure for triethylamine (TEA) detection at low temperature are significant in scientific and practical aspects. This paper reports a facile hydrothermal process to synthesize MoS2/GO with different mass ratios of graphene oxide (GO) to MoS2. The techniques of XRD, Raman, XPS, SEM, HRTEM, N2 adsorption-desorption and FT-IR were used to characterize the samples. The results show that MoS2/GO takes a novel 3D heterostructure consisting of layered GO and MoS2 nanosheets. The MoS2/GO sensors are highly sensitive to TEA vapors, with a low detection concentration of 1 ppm and a high stability. The typical MoS2/GO-3% sensor exhibits a response of 2.8 and a response time of 7 s upon exposure to 1 ppm TEA, and a response of more than 75 to 50 ppm TEA at 260 °C. It shows a high selectivity to detect TEA when compared with other VOCs or gases. The enhanced TEA-sensing performance is benefited from the positive synergistic effect of GO and MoS2, the high specific surface area and improved electron conductivity. This work provides an efficient platform to design active materials to detect toxic and harmful gases on basis of 3D MoS2/GO nanocomposites.

Enhancing mechanical performances of polystyrene composites via constructing carbon nanotube/graphene oxide aerogel and hot pressing

Mixture of styrene and initiator polymerized in situ in three-dimensional graphene oxide (GO)/carbon nanotube (CNT) aerogel (GOCA) obtained via modified Hummers' method and freeze-drying method to form GOCA/polystyrene (GOCA/PS) nanocomposites. After heating processing, the prepared GOCA/PS nanocomposite sheets exhibited excellent mechanical properties. Results revealed that GOCA was well dispersed and embedded into the PS matrix. When the mass ratio of GO to CNT was 7:3 and the total loading of GOCA was 1.02 wt%, tensile, flexural, compressive, and impact strengths were greatly improved (increased by 64.05%, 54.7%, 107.38%, and 66.5%, respectively, compared with neat PS). Meanwhile, the prepared GOCA/PS nanocomposites presented great microhardness of ~265 MPa and compressive modulus of ~689 MPa. We believe that these effective methods may provide good idea for designing and investigating reinforced composites.

Reduced graphene oxide decorated with ZnO microrods for efficient electromagnetic wave absorption performance

A composite RGO/ZnO-mrs, which is reduced graphene oxide (RGO) decorated with ZnO microrods (ZnO-mrs), with excellent electromagnetic wave absorbing performance was prepared by a simple mechanical mixing and direct freeze-drying method. The load of ZnO-mrs in this composite is controlled effectively by changing mass ratio of raw materials Zn(Ac)2·2H2O and graphene oxide (GO), then the balance between dielectric loss ability to electromagnetic wave and impedance matching with free space of the absorbing composite RGO/ZnO-mrs prepared can be obtained, and then its high-performance electromagnetic wave absorption ability. When mass ratio of GO to Zn(Ac)2·2H2O is 1:3, composite RGO/ZnO-mrs filled with only 15 wt% exhibits the most significant electromagnetic wave absorption properties, its minimum reflection loss (RLmin) value of − 38.5 dB is obtained at 15.4 GHz and effective absorption bandwidth (EAB) is up to 5.4 GHz (12.6–18 GHz) with a thickness of 2 mm only. The basic electromagnetic wave absorption mechanism of this composite is discussed systematically. All results demonstrate that composite RGO/ZnO-mrs in this study is very promising as a broadband absorption, light weight, especially with a simple and expandable preparing process electromagnetic wave absorber.

Tuning the Wrinkles in 3D Graphene Architectures for Mass and Electron Transport

AbstractDue to the high in‐plane Young's modulus and defects, graphene is prone to deformations such as wrinkles. The effects of wrinkles on the mass and electron transport properties need to be elucidated as graphene has great potential in applications such as catalysis, sensors, energy storage, and conversion. In this paper, the wrinkling of graphene oxide sheets is dominated by the mass ratio of graphene oxide to N,N′‐dicyclohexylcarbodiimide (DCC) to fabricate 3D graphene architectures (TDGAs) with tunable porosity. This template‐free DCC tactic of regulating the wrinkling procedure forms hierarchical porosity and modulates the exposure of defect sites. Considering the confinement effect of the wrinkles and defect sites, orthorhombic phase Nb2O5 (T‐Nb2O5) nanoparticles are loaded onto TDGAs, and as‐obtained T‐Nb2O5@TDGAs composites exhibit favorable properties of Li‐ion and electron transport after the wrinkle structures are optimized. The DCC tactic manifests excellent performance in manipulating mass transport properties through tuning the wrinkles on TDGAs‐based composites, which may greatly contribute to graphene based materials with high performances in energy storage.

Fabrication of excellent anti-corrosion epoxy coating based on GON-An composites

ABSTRACT Polyaniline/graphene oxide (GON-An) composites were synthesized by chemically grafting p-phenylenediamine (PPDA)-modified graphene oxide (GO) with polyaniline (PANI), which was confirmed by FT-IR, XRD, SEM, TEM, Raman spectroscopy, and XPS analyses. The electrochemical impedance spectroscopy test, brine immersion, and Tafel slopes analysis revealed that compared with GO and PPDA-modified GO (GON), GON-An composites which combined the unique corrosion resistance of both PANI and GO exhibited relatively obvious superiority in improving the corrosion resistance of epoxy coating with the same contents. After being immersed in brine for 35 days, the composite epoxy coating containing 1 wt-% of GON-An(1:2) composites in which the mass ratio of GO and PANI was 1:2, possessed a high impedance of 4×109 Ω cm2, a high corrosion potential of −0.25 V, and a low corrosion current of 4.119×10−11 A cm−2. Furthermore, the anti-corrosive mechanisms of PANI/GO epoxy coatings were discussed.

CoFe2O4/N-doped reduced graphene oxide aerogels for high-performance microwave absorption

Nowadays, to solve electromagnetic radiation issues, an urgent demand is to develop high-performance microwave wave absorption materials with lightweight, broad bandwidth and strong absorbing capacity. In this work, by embedding CoFe2O4 (CFO) nanoparticle into N-doped reduced graphene oxide (N-rGO) aerogels, a unique CFO/N-rGO aerogel microwave wave absorber with a 3D porous architecture is synthesized via a facile solvothermal method and lyophilization technique. Impressively, the as-synthesized N-rGO aerogels exhibit typical ferromagnetic behavior. The electromagnetic parameters of CFO/N-rGO aerogels can be immensely improved by tuning the additive amount of CoFe2O4 nanoparticle. An optimal microwave absorption performance is achieved when the mass ratio of graphene oxide (GO) to CoFe2O4 is 1:2. Here, a strong reflection loss (RL) reaches −60.4 dB at 14.4 GHz with a thickness of 2.1 mm and a low filler loading ratio of 20 wt%. Further, the effective absorption bandwidth (RL < −10 dB) can be up to 6.48 GHz (11.44–17.92 GHz) with a thickness of 2.2 mm. Notably, at only 3 mm, its effective absorption bandwidth can completely cover X-band. The superior microwave wave absorption performance of as-synthesized CFO/N-rGO aerogels is attributed to the specific surface morphology and porous structures, leading to the multiple scattering and reflecting, interfacial polarization and optimal impedance matching. This work not only provides a deep insight on tuning microwave absorption performance of ferrite/N-rGO aerogels, but also offers a new route to design high-performance magnetic/dielectric absorbers.

A multifunctional thermal management paper based on functionalized graphene oxide nanosheets decorated with nanodiamond

In this study, we developed a multifunctional thermal management nanocomposite paper (NPG) consisting of cationic poly (diallyldimethylammonium chloride) (PDDA)-functionalized graphene oxide (PG) and nanodiamond (ND). Due to the functionalized reduction of graphene oxide (GO) by PDDA as well as electrostatic interactions between the positively charged PG and negatively charged ND, a three-dimensional (3D) hybrid NPG paper constructed by two-dimensional (2D) PG layers and zero-dimensional (0D) ND particles was successfully prepared via a vacuum-assisted self-assembly strategy. The resulting NPG papers were characterized by various techniques including Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) pattern and X-ray photoelectron spectroscopy (XPS). In this analogous 3D “panel-bead” structure, adjacent PG nanosheets and ND particles are bridged through electrostatic interactions, which strengthens the interface connection and reduces phonon scatterings, resulting in an effective phonon transport pathway. Thus, a superior in-plane thermal conductivity of 16.653W m−1K−1 was obtained at the mass ratio of GO:ND = 3:1 (NPG3), which is about 80 times higher than that of traditional pure polymers. In addition, the peak heat release rate (PHRR) of NPG3 paper was only 99.16 W g−1 at 439.2 °C while that of GO was 438.4 W g−1 at 210.9 °C, indicating that NPG paper possesses excellent flame retardancy. More interestingly, although the NPG3 paper has excellent insulation (electrical resistivity reaches up to 2.647 × 1011 Ω cm), the ultrafast flame alarm response was found within about 1s after the paper exposed to the flame. This design idea provides an alternative approach for preparing multifunctional thermal management nanocomposites in the future.