Yan Wang
China University of Petroleum
Hydrophobic silicaAmine gas treatingAdsorptionOil drop experimentNanoparticleComposite materialControlled releaseNanotechnologyAqueous solutionChemistryReducing agentMaterials scienceCorrosionInstabilityMesoporous silicaEmulsionSodium dodecyl sulfateFatty alcoholAlkylNano-AlkaneNanocontainerMolecular simulationProtonationTemperature and pressureTertiary amineSio2 nanoparticlesFoam filmMoleculeStability (probability)Chemical engineeringPhase (matter)Dissipative particle dynamicsPulmonary surfactantMolecular dynamicsVolume fractionOil dropletMesoporous materialZeta potentialSurface tensionPickering emulsionSupramolecular chemistry
6Publications
4H-index
20Citations
Publications 6
Newest
#1Yan WangH-Index: 4
#2Hongbing Wang (China University of Petroleum)H-Index: 6
Last. Songqing Hu (China University of Petroleum)H-Index: 15
view all 5 authors...
Abstract Dissipative particle dynamics (DPD) simulations were applied to investigate the effect of SiO2 nanoparticles (SNPs) modified with different tertiary amine chain length and concentration on O/W emulsion properties, the influence mechanism was also revealed from the molecular level. On this basis, the influence of the modified SNPs volume fraction in the emulsion system was studied. The results showed that with the increase number of tertiary amine chain alkyl carbon, the stability of the...
Source
#1Hongbing WangH-Index: 6
#2Ji LiuH-Index: 1
Last. Songqing HuH-Index: 15
view all 7 authors...
Abstract In the lifting process of drainage gas recovery, external conditions and internal components of the foam are complex. We used molecular dynamics simulation to construct a series of fatty alcohol polyoxyethylene ether sulfate (AES) foam models that could represent various foams in different lifting stages from well to ground. The effect of temperature and pressure on foam stability was investigated. We found that there are two main reasons for foam instability in the first-half stage of ...
3 CitationsSource
#1Yan Wang (China University of Petroleum)H-Index: 4
#2Hongbing Wang (China University of Petroleum)H-Index: 6
Last. Songqing Hu (China University of Petroleum)H-Index: 15
view all 7 authors...
Abstract In the present study, SiO2 nanoparticles were first hydrophobically modified and then added into anionic surfactant sodium dodecyl sulfate (SDS) stabilized water-based foam to improve the foam stability. The foam stability was experimentally evaluated by measuring surface tension, Zeta potential and half-life of the foam. The foam stabilizing mechanism was also studied from a micro perspective by molecular dynamics simulation through analyzing the equilibration configuration and MSD cur...
7 CitationsSource
#1Shuangqing Sun (China University of Petroleum)H-Index: 12
#2Yan Wang (China University of Petroleum)H-Index: 4
Last. Songqing Hu (China University of Petroleum)H-Index: 15
view all 8 authors...
Abstract Experiment and molecular dynamics simulation were carried out to study the tunable stability of oil-containing SDS-stabilized Nitrogen-in-water foam. The experimental results show that the foam stability could be tuned by the concentrations of SDS and modified SiO2 nanoparticles. In the foam systems with a low SDS concentration (0.2 wt.%), the foams show poor stability and the foam stability was almost not affected by the addition of modified SiO2 nanoparticles. The foam stability was g...
11 CitationsSource
#1Shuangqing Sun (China University of Petroleum)H-Index: 12
#2Xiqiang Zhang (China University of Petroleum)H-Index: 2
Last. Songqing Hu (China University of Petroleum)H-Index: 15
view all 8 authors...
Abstract A novel CO2/N2 switchable aqueous foam was developed using a CO2-responsive surfactant N,N-dimethyl-N-dodecyl amine (C12A) and a conventional surfactant sodium dodecyl sulfate (SDS). The performance and mechanism of this switchable foam were studied by both experiment and molecular simulation methods. Experimental results demonstrate that the foam stabilized by SDS/C12A surfactants has better stability and water carrying capacity than single C12A foam. The foam could be rapidly switched...
7 CitationsSource
#1Shuangqing Sun (China University of Petroleum)H-Index: 12
#2Xiyu Zhao (China University of Petroleum)H-Index: 2
Last. Songqing Hu (China University of Petroleum)H-Index: 15
view all 6 authors...
Abstract The redox-responsive hollow mesoporous silica sphere (HMSS) as smart nanocontainer demonstrates great potential for active agent storage and controlled release. In the present work, HMSS was firstly prepared by surfactant assisted selective etching method. Then, target corrosion inhibitors, 2-mercaptobenzothiazole (MBT) molecules, were loaded and encapsulated with redox-responsive supramolecular nanovalves, ZnO quantum dots. Results reveal that obtained HMSS exhibits a hierarchical meso...
7 CitationsSource