张亚雪等-中国石油大学（华东）-高容量甲烷在MIL-101(Cr)/Graphene Oxide复合材料上的吸附和水化耦合的新材料

Session 5 - Oral 9

Adsorption and Hydration Coupling on a Novel Material of MIL-101(Cr)/Graphene Oxide Composites with High Capacities Methane

Yaxue Zhang1, Ming Zhang1 , Shujun Chen1,2,3, *, Di Wang1

1College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao 266580, China

2 Qingdao engineering research center of efficient and clean utilization of fossil energy, Qingdao 266580, China

3Shandong Key Laboratory of Oil & Gas Storage and Transport Safety, Qingdao 266580, China

Abstract: To reach the carbon peak by 2030 and carbon neutrality by 2060, a kind of clean energy of natural gas acts as a key energy to achieve the target, and the high capacities of methane is significance for large-scale utilization of natural gas. In this study, a novel MIL-101(Cr)/GO composites were synthesized by hydrothermal synthesis, characterized and studied for storage of CH4. A lower mass ratio of GO will not damage the structure of MIL-101(Cr). The adsorption experiment of CH4 was carried on MIL-101(Cr)/GO composites, the adsorption capacity of dry MIL-101(Cr)/2.5GO composites for CH4 reached 27.39 mmol/g, at 8MPa and 275.15 K; the adsorption capacity of CH4 on MIL-101(Cr)/2.5GO composites with H2O was higher than dry material, reaching 33.98 mmol/g (0.54g/g) at 8MPa and 275.15 K, much higher than other MOFs reported and over the standard of DOE(0.5g/g), the results confirmed that CH4 hydrate formation on MIL-101(Cr)/GO composites. It is the first indicated that adsorption-hydration coupling of CH4 on MIL-101(Cr)/GO composites and increase the storage capacity of CH4, MIL-101(Cr)/GO composites can be developed as an effective storage material to storage CH4 and provide a way for natural gas storage and transportation applications.

Keywords: natural gas; methane hydrate; graphene oxide, MIL-101(Cr)/GO composites; adsorption-hydration coupling.