Accelerated methane storage in clathrate hydrates using surfactant-stabilized suspension with graphite nanoparticles

New Insights into the Kinetics and Morphology of CO2 Hydrate Formation in the Presence of Sodium Dodecyl Sulfate

“…It is interesting to find in Table 2 that CO 2 consumption obtained in the 1500 ppm of SDS solution is increased by 35% compared to that obtained in the system using graphite nanoparticles. 29 It is reported that the existence of graphite nanoparticles (GNP) in the liquid can enlarge the gas−liquid interface and promote hydrate nucleation in a short time, 41,42 so the induction time for CO 2 hydrate formation in the system containing graphite nanoparticles is shorter than that obtained in the SDS solution. For example, in this work the induction time obtained at 1500 ppm of SDS is 56 min, but it is reduced to 8.6 min in graphite nanoparticle suspensions at the same temperature and pressure conditions.…”

Recent Advances to Overcome Methane Hydrate Formation Challenges Using Nanostructure Promoters: A Mini Review Towards Industrialization

“…So far, the effect of a wide range of carbon nanostructures has been studied. Briefly, single [45] and multi-walled carbon nanotubes (CNT) [40,[46][47][48][49][50][51], graphene, graphene oxide [46], reduced graphene oxide [46], graphite nanoparticles [52,53] as well as polymer coated [42] and metal nanoparticles grafted carbon nanotubes [41] have been studied, while the effect of fluorine on the formation of methane hydrates has never been investigated and there is a vacancy for a generic study on the effect of different morphologies of carbon nanostructures on methane hydrate formation process. On the other hand, other nanoparticles such as silver (Ag) [54,55], copper (Cu) [56], titanium dioxide (TiO2) [57], silicon dioxide (SiO2) [58][59][60], Iron (II,III) oxide (Fe3O4) [61], TiO2-Ag-SiO2 sol [59], Zinc oxide (ZnO) [62] and Cupric oxide (CuO) [60,63] have also been shown to promote the formation of methane hydrates.…”

“…Researchers have adopted common nanoparticle stabilization strategies to overcome this challenge. Sodium dodecyl sodium sulfate (SDS) surfactant has been widely used to stabilize TiO2 [57], Fe3O4 [61], CuO [63], graphite, graphene, and other carbon nanostructures in water [49,53,64]. Other surfactants such as tetrahydrofuran (THF) have also been used [47].…”

“…This is relatively a long period and usually dominates the overall process time. Yang et al stabilized a range of concentrations of graphite in water and studied its promotion at a range of pressure between 6.1 MPa to 9 MPa at 1 o C [53]. They showed that the optimum promotion occurs with a 0.4 wt% solution and the increase of pressure lowers the induction time up to 16 minutes.…”

CoSnO3 Nanocubes Wrapped by Carbon Nanofibers for Improving Lithium‐Sulfur Battery Performances

“…The ever-increasing number of electronic equipment and electric vehicles raises higher requirements for electrical energy conversion and storage systems. [1][2][3][4] Compared with traditional lithium-ion batteries, lithium-sulfur batteries (LSBs) have a higher theoretical energy density (∼ 2500 Wh kg À 1 ), so they are expected to become candidates for next-generation energy storage systems. [5][6] However, the sulfur cathode still has some key shortcomings in practical applications.…”