Enhanced hydrogen storage performance of three-dimensional hierarchical porous graphene with nickel nanoparticles

Liu, Yurong; Zhang, Zongqiang; Wang, Tianyu

doi:10.1016/j.ijhydene.2018.04.202

Cited by 27 publications

(11 citation statements)

References 97 publications

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“…In Figure 5(b), GO-COOH still presented a layered structure. The difference is that the thickness of GO-COOH sheet increased slightly, which was mainly due to the replacement of hydroxyl and epoxy groups on GO sheet by -O-CH 2 -COOH groups, resulting in the increase of thickness of GO-COOH sheet [20]. In Figure 5(c), it can be seen that the thickness of GO-ODOPM sheet is obviously increased, and the sheet was rough and curly.…”

Section: Morphological Analysismentioning

confidence: 93%

A study on preparation of modified Graphene Oxide and flame retardancy of polystyrene composite microspheres

Wang

Qing

Sun

et al. 2020

Designed Monomers and Polymers

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In this paper, the ODOPM, a kind of 9, 10-dihydro-9-oxygen-heterooxy-10-phosphoro-10-oxygen (DOPO) derivative, was obtained by hydroxylation of DOPO. Further, a phosphorus nano-flame retardant (GO-ODOPM) was obtained by addition reaction with carboxylated Graphite Oxide (GO-COOH). And then Graphene Oxide/polystyrene (GO-ODOPM/PS) composite microspheres were obtained via suspension polymerization of styrene with GO-ODOPM. The decrease of the peak heat release rate (HRR) and total heat release rate (THR) for the GO-ODOPM/PS composite microspheres was obtained when the content of the additives was only 3.0 wt% is more than 36.2% and 33.6% compared with the pure PS microspheres, respectively. Thermogravimetric (TG), dynamic rheology and carbon residue analysis were used to study the flame-retardant mechanism of GO-ODOPM in PS microspheres. The results revealed that the addition of GO-ODOPM obviously reduced the fire hazard of polystyrene (PS) microspheres. Thus, this work provided a feasible method to design efficient flame retardants for enhancing fire safety of polymers. ARTICLE HISTORY

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Section: Morphological Analysismentioning

confidence: 93%

A study on preparation of modified Graphene Oxide and flame retardancy of polystyrene composite microspheres

Wang

Qing

Sun

et al. 2020

Designed Monomers and Polymers

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“…Obviously, the idea of decoration of spatial forms of graphene is under careful investigation. One of the possible approaches involve electrostatic assembling and poly (methyl methacrylate) (PMMA) template [ 137 ]. GO-COOH dispersion self-assemble on the surface of positively charged microspheres made of PMMA, and after the addition of NiCl 2 calcinated in 600 °C in nitrogen atmosphere to remove PMMA.…”

Section: Graphene-assisted Hydrogen Storagementioning

confidence: 99%

Emerging Technology for a Green, Sustainable Energy-Promising Materials for Hydrogen Storage, from Nanotubes to Graphene—A Review

Jastrzębski

Kula

2021

Materials

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The energetic and climate crises should pose a challenge for scientists in finding solutions in the field of renewable, green energy sources. Throughout more than two decades, the search for new opportunities in the energy industry made it possible to observe the potential use of hydrogen as an energy source. One of the greatest challenges faced by scientists for the sake of its use as an energy source is designing safe, usable, reliable, and effective forms of hydrogen storage. Moreover, the manner in which hydrogen is to be stored is closely dependent on the potential use of this source of green energy. In stationary use, the aim is to achieve high volumetric density of the container. However, from the point of view of mobile applications, an extremely important aspect is the storage of hydrogen, using lightweight tanks of relatively high density. That is why, a focus of scientists has been put on the use of carbon-based materials and graphene as a perspective solution in the field of H2 storage. This review focuses on the comparison of different methods for hydrogen storage, mainly based on the carbon-based materials and focuses on efficiently using graphene and its different forms to serve a purpose in the future H2-based economy.

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“…Solid state storage of hydrogen is an alternative safe method. Carbon based materials, such as carbon fiber, templated carbon, activated carbon, carbon nanotube, with high surface area and large pore volume have been established as potential materials for hydrogen storage [12][13][14][15][16]. Both microporoues and mesoporous carbons have been reported for hydrogen storage [17][18][19][20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Effects of gaseous environments on physicochemical properties of thermally exfoliated graphene oxides for hydrogen storage: a comparative study

Singh

2021

J Porous Mater

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The present study compared the effect of different gaseous environments on physicochemical properties and subsequent hydrogen storage ability of thermally exfoliated graphene oxide (EGO). The reducing, inert or oxidizing environments were generated using hydrogen, argon or air as the carrier gas, respectively. The structure of thermally exfoliated graphene oxide depended on the type of gaseous environment. The EGO prepared in presence of Air showed the fluffiest layered structure having highest surface area. The surface area order was EGO(Air) (268 m 2 /g) > EGO(H 2 ) (248 m 2 /g) > EGO(Ar) (155 m 2 /g). The average pore sizes of EGO(Air) and EGO(H 2 ) were 2.9 and 2.8 nm, with pore volumes of 1.2 and 1.6 cm 3 /g, respectively. The average pore size for EGO(Ar) was highest at 4.1 nm, associated with presence of larger void space and lowest total pore volume of 1.0 cm 3 /g. Thus, presence of oxidative or reducing atmosphere seemed to be more conducive to exfoliation of layers by gradual removal of functional groups. The inert atmosphere of argon caused severe thermal separation of layers and functional groups, adversely affecting the layered structure as observed. The EGO(Air) also showed highest O/C ratio suggesting presence of significant amount of oxygen-containing functional groups on the surface. The hydrogen uptake order at 77 K and 30 bar was: EGO (Air) 3.34 wt.% > EGO (H 2 ) 3.12 wt.% > EGO (Ar) 2.2 wt.%. The highest uptake of EGO(Air) might have resulted from highest surface area, highest O/C ratio and presence of considerable pore volume.

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Enhanced hydrogen storage performance of three-dimensional hierarchical porous graphene with nickel nanoparticles

Cited by 27 publications

References 97 publications

A study on preparation of modified Graphene Oxide and flame retardancy of polystyrene composite microspheres

A study on preparation of modified Graphene Oxide and flame retardancy of polystyrene composite microspheres

Emerging Technology for a Green, Sustainable Energy-Promising Materials for Hydrogen Storage, from Nanotubes to Graphene—A Review

Effects of gaseous environments on physicochemical properties of thermally exfoliated graphene oxides for hydrogen storage: a comparative study

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