Article
Chemistry, Physical
Minglu Li, Gerardo Callegari, German Drazer
Summary: This study presents a method to determine the effective capillary pressure and permeability of a column packed with a granular material through imbibition experiments. By using a closed column and measuring liquid uptake and pressure differential, the researchers were able to accurately reproduce the experimental results and characterize the granular system.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Energy & Fuels
Abouzar Mirzaei-Paiaman, Mohsen Faramarzi-Palangar, Sofiane Djezzar, Shahin Kord
Summary: This paper introduces a new wettability index and tests other indices, finding that all indices predict the oil-wet character of tested rocks. There are correlations between different indices and variations in wettability indices with reservoir depth.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Construction & Building Technology
Yujiang Wang, Qian Tian, Hua Li, Yang Wang, Ming Li, Jiaping Liu
Summary: Early age shrinkage behaviors of cement-based materials are influenced by bleed water, hydration products, and temperature. However, it has been discovered that expansion can still occur without the reabsorption of bleed water, formation of expansive products, and thermal expansion. This is because the expansion happens during cavitation of the paste, which is caused by stress release.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Energy & Fuels
Hani Al-Mukainah, Ahmed Al-Yaseri, Nurudeen Yekeen, Jafar Al Hamad, Mohamed Mahmoud
Summary: This study investigates the wettability of shale and interfacial properties in hydrogen storage, aiming to assess the storage capacity of organic-rich shale and sealing potentials of low TOC shale during underground hydrogen storage.
Article
Engineering, Civil
Guanglei Zhang, Mohamed Regaieg, Martin J. Blunt, Branko Bijeljic
Summary: A porous plate technique was developed to measure capillary pressure in carbonate rock samples. The study showed that in mixed-wet media, displacement of oil from micro-porosity can occur at much lower capillary pressures than previously estimated.
JOURNAL OF HYDROLOGY
(2023)
Article
Environmental Sciences
Yi Dong, Lun Wang, Changfu Wei
Summary: The evolution of liquid-vapor interfaces in multiphase flow and phase change processes in porous media is essential yet poorly understood. This study investigates the microscale characteristics of these interfaces during soil water evaporation using X-ray micro tomography. The results reveal the development of interfacial geometry and topology, as well as their impact on evaporation rates in soil.
WATER RESOURCES RESEARCH
(2022)
Article
Energy & Fuels
Sami Yahyaoui, Rezki Akkal, Mohammed Khodja, Toudert Ahmed Zaid
Summary: The water-oil relative permeability behavior of different plugs from the Hassi Messaoud reservoir in south Algeria has been studied to understand the fundamental processes of two-phase flow within rock samples. Factors such as wettability, overburden pressure, and rock characteristics have been assessed based on the relative permeability curves.
Article
Chemistry, Physical
Fandi Oktasendra, Arben Jusufi, Andrew R. Konicek, Mohsen S. Yeganeh, Jack R. Panter, Halim Kusumaatmaja
Summary: We use a phase field simulation method to investigate liquid filling on grooved surfaces, considering both short-range and long-range liquid-solid interactions. Different wetting states are captured, and complex disjoining pressure profiles are observed. The filling transition is reversible for complete wetting and shows hysteresis for partial and pseudo-partial wetting. The critical pressure for the filling transition follows the Kelvin equation for complete and partial wetting scenarios, and distinct morphological pathways are identified for pseudo-partial wetting.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Energy & Fuels
Hooman Mohammadshahi, Hamidreza Shahverdi, Mohsen Mohammadi
Summary: In this study, the combination effects of non-ionic surfactants and smart water flooding in water-based EOR methods were investigated. The experimental results showed that the combination of smart water and surfactant injection could significantly improve the recovery factor compared to each method alone.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Engineering, Civil
Kan Bun Cheng, Avinoam Rabinovich
Summary: This study introduces a new upscaling method for multiphase flow simulations based on effective property formula for permeability, power law averaging for relative permeability, and an optimization approach for capillary pressure. The method is able to match fine-grid simulations with sufficient accuracy and model pressure trapping within flow processes. It significantly reduces computational time in cases where fine-grid solutions are unknown.
JOURNAL OF HYDROLOGY
(2021)
Article
Chemistry, Physical
Ahmed Zankoor, Mahdi Khishvand, Abdelhalim Mohamed, Rui Wang, Mohammad Piri
Summary: This study introduces two new techniques for automated measurements of in-situ capillary pressure and contact angle, which are validated and applied in saturated porous media. The results show encouraging agreement between micro-scale measurements and macroscopic behaviors, with a nonmonotonic increase in saturation due to pore-scale intermittency. The new methods also enable the generation of in-situ contact angle distributions and automatic exclusion of invalid measurements.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Energy & Fuels
Min Li, Zhenhe Jian, Aliakbar Hassanpouryouzband, Lunxiang Zhang
Summary: This study investigates the effect of hydrate dissociation on gas trapping and hysteresis in capillary pressure and relative permeability. It finds that secondary hydrate formation promotes gas trapping, with higher residual gas saturation in water-wet systems compared to gas-wet systems. Gas trapping has a significant impact on hysteresis between drying and wetting cycles.
Article
Chemistry, Multidisciplinary
Neethu Puthumadathil, Smrithi R. Krishnan, Greeshma S. Nair, Kozhinjampara R. Mahendran
Summary: This study reveals a multi-step structural assembly pathway of alpha-helical peptide pores using single-channel electrical recordings. Detectable intermediate states during the membrane insertion and pore formation are reported. The fully assembled pore displays unusually large stable conductance, voltage-dependent gating, and functional blockage, making it of broad interest in building peptide-based nanopore sensors.
Article
Chemistry, Multidisciplinary
Mohsen Faramarzi-Palangar, Abouzar Mirzaei-Paiaman, Seyyed Ali Ghoreishi, Behzad Ghanbarian
Summary: Various methods for evaluating reservoir rock wettability have been proposed. This study conducted experiments on a carbonate reservoir to evaluate and compare different quantitative and qualitative wettability indicators. The results showed consistency between relative permeability-based approaches and Amott-Harvey and USBM methods. The study also investigated the relationship between wettability indices and rock quality indicators.
APPLIED SCIENCES-BASEL
(2022)
Article
Engineering, Ocean
Shan Wang, Gong Xiang, C. Guedes Soares
Summary: Numerical investigation of three-dimensional effects on slamming loads in water entry problems was conducted using the RANS equations and VOF method in OpenFoam. Results showed that the 3D predictions were around 23% lower for the wedge and 16% lower for the slender circular cylinder compared to 2D calculations.
APPLIED OCEAN RESEARCH
(2021)
Article
Nanoscience & Nanotechnology
Yongqiang Chen, Ahmad Sari, Junju Mu, Maxim Lebedev, Ali Saeedi, Vahid J. Niasar, Quan Xie
Summary: Fluid-fluid interfacial reactions play a significant role in influencing multiphase flow within porous materials, leading to increased hydrocarbon recovery during engineered carbonated waterflooding. Molecular dynamics simulations further show the impact of these interactions on interfacial properties, such as changes in interfacial tension, chemical species distribution, and CO2 diffusion.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Environmental Sciences
Hamidreza Erfani, Masoud Babaei, Vahid Niasar
Summary: This study investigates the process of CO2 dissolution in deep saline aquifers through numerical simulations, and highlights the importance of considering hydrodynamic dispersion and multispecies geochemical reactions. Results indicate that accounting for hydrodynamic dispersion can increase the CO2 dissolution flux and decrease the convection onset time, while geochemical reactions can enhance long-term efficiency but reduce total sequestered carbon during the diffusion-dominated period. The study emphasizes the significance of realistic geochemical representation and the spatial and temporal dependence of reactions for detailed simulation of the CO2 storage process.
WATER RESOURCES RESEARCH
(2021)
Article
Nanoscience & Nanotechnology
Adrian Mularczyk, Qingyang Lin, Daniel Niblett, Alexandru Vasile, Martin J. Blunt, Vahid Niasar, Federica Marone, Thomas J. Schmidt, Felix N. Buchi, Jens Eller
Summary: This study investigates the complex and dynamic mechanisms of water cluster formation in fuel cells, aiming to minimize the number, size, and instability of water clusters by understanding the pressure evolution and instability of the feeding path during droplet formation. The research observed a 2 kPa higher breakthrough pressure compared to static capillary pressure evaluations, suggesting the need to rethink the dynamic liquid water invasion process in polymer electrolyte fuel cell gas diffusion layers.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Energy & Fuels
Yongqiang Chen, Vahid J. Niasar, Quan Xie
Summary: This study quantified the adhesion of the acid component (-COOH) on kaolinite surface using PHREEQC and PEST, revealing that PTBBA mainly adsorbs on the basal plane. This geochemical modeling corrected previous overestimations and provided a deeper understanding for predicting low salinity effects.
Article
Mechanics
Senyou An, Muhammad Sahimi, Takshak Shende, Masoud Babaei, Vahid Niasar
Summary: In this paper, a pore network model is proposed to simulate thermal transport in flow through three-dimensional unstructured pore networks. The study investigates the effects of pore space heterogeneity, injection flow rate, and shear-thinning rheology on thermal-viscous fingering instability in porous media. The results highlight the importance of designing optimal flow conditions for application purposes.
Article
Engineering, Chemical
Hamidreza Erfani, Nikolaos Karadimitriou, Alon Nissan, Monika S. Walczak, Senyou An, Brian Berkowitz, Vahid Niasar
Summary: High-resolution optical imaging was used to study solute transport under single-phase flow conditions in porous micromodels. It was found that the transport time scale during unloading is larger than that under loading, with the difference between dispersion values decreasing with an increase in flow rate. Patterned heterogeneity micromodels increased the difference between transport time scales during loading and unloading processes.
TRANSPORT IN POROUS MEDIA
(2021)
Article
Environmental Sciences
Javad Shokri, Omar E. Godinez-Brizuela, Hamidreza Erfani, Yongqiang Chen, Masoud Babaei, Brian Berkowitz, Vahid Niasar
Summary: This study used optical imaging to investigate two-phase drainage in a heterogeneous micromodel under different injection rates and flow directions, and found that the capillary pressure-saturation relationship near a heterogeneity interface deviates from conventional models. The initial findings highlight the gaps in the understanding of upscaling capillary pressure in heterogeneous porous materials, and indicate that the discontinuity in saturation is more pronounced in the fine-to-coarse direction.
WATER RESOURCES RESEARCH
(2022)
Article
Water Resources
Hamidreza Erfani, Masoud Babaei, Carl Fredrik Berg, Vahid Niasar
Summary: Solubility trapping of carbon dioxide (CO2) in deep saline aquifers is an effective mechanism for carbon storage. This study investigates the scaling relations of convective mixing in the dissolution of CO2 in aquifer brine. The results provide new insights into the factors affecting the dissolution flux and onset time of convection, which are important for the prioritization and selection of appropriate aquifers for geological CO2 storage.
ADVANCES IN WATER RESOURCES
(2022)
Article
Environmental Sciences
A. M. Norouzi, V Niasar, J. G. Gluyas, M. Babaei
Summary: Salt precipitation during CO2 injection into saline aquifers is a significant phenomenon that reduces permeability and injectivity. Capillary pressure drives brine backflow in water-wet systems, leading to more precipitation. We developed an analytical solution considering the effect of capillary pressure, which was validated using numerical simulations. The solution accurately estimated the influence of capillary pressure on injectivity impairment due to salt precipitation.
WATER RESOURCES RESEARCH
(2022)
Article
Environmental Sciences
Monika S. Walczak, Hamidreza Erfani, Nikolaos K. Karadimitriou, Ioannis Zarikos, S. Majid Hassanizadeh, Vahid Niasar
Summary: Solute transport in heterogeneous and fractured systems is complex. The mass exchange rate coefficient changes with time, and the transfer rate coefficient is smaller during the unloading process, possibly due to concentration-dependent counter-current advection-diffusion.
WATER RESOURCES RESEARCH
(2022)
Article
Environmental Sciences
Senyou An, Muhammad Sahimi, Vahid Niasar
Summary: Hydrodynamic dispersion in flow through porous media is an essential phenomenon in many geosystems. However, limited studies have focused on dispersion in flow of non-Newtonian fluids. This study used pore-scale simulations to investigate the effects of rheology and flow dynamics on hydrodynamic dispersion. Surprisingly, the simulations revealed a non-monotonic relationship between injection rate and dispersivity, highlighting the need for improved theories of transport in porous materials for non-Newtonian fluids.
WATER RESOURCES RESEARCH
(2022)
Article
Multidisciplinary Sciences
Daniel Magnone, Vahid J. Niasar, Alexander F. Bouwman, Arthur H. W. Beusen, Sjoerd E. A. T. M. van der Zee, Sheida Z. Sattari
Summary: New research indicates that sustainable and fossil fuel-driven economic growth can contribute towards improving food security in Sub-Saharan Africa. Phosphorus availability is a major barrier to food security, and pathways towards sustainability or fossil fuel reliance have different impacts on food security. Prioritizing sustainable economic growth and avoiding nationalist ideologies are key to enhancing food security in the region.
NATURE COMMUNICATIONS
(2022)
Article
Energy & Fuels
Senyou An, Yuting Zhan, Hassan Mahani, Vahid Niasar
Summary: In this study, an advanced model is proposed to investigate the dynamics of droplet detachment from a surface, taking into account the impact of buoyancy and interfacial forces. The results demonstrate that the detachment time of droplets is not only determined by the Bond number, but also influenced by the diffusion length scale.
Article
Electrochemistry
Javad Shokri, Daniel Niblett, Masoud Babaei, Vahid Niasar
Summary: The study successfully validated the improved 3D printable electrode design to enhance the performance of flow batteries through pore network modeling. A parametric study was conducted to investigate the impact of microstructure on battery performance.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Sina Omrani, Mehdi Ghasemi, Mrityunjay Singh, Saeed Mahmoodpour, Tianhang Zhou, Masoud Babaei, Vahid Niasar
Summary: Hydrogen (H-2) underground storage is an efficient strategy for large-scale storage. This study employed molecular dynamics simulation to develop a dataset for the interfacial tension (IFT) between H-2 and brine systems, and established a reliable correlation using three machine learning approaches.
Article
Chemistry, Physical
Panpan Zhang, Xu Wang, Yangyang Yang, Haifeng Yang, Chunsheng Lu, Mingru Su, Yu Zhou, Aichun Dou, Xiaowei Li, Xiaochuan Hou, Yunjian Liu
Summary: In this study, the influence of transition metal doping on the electronic and mechanical properties and electrochemical performance of 2HMoS2/NC was investigated using Cobalt (Co) as an example. Co doping was found to effectively improve the electronic conductivity and active site areas of 2H-MoS2/NC at different positions, optimizing the adsorption and diffusion capability of potassium ions. Furthermore, the study revealed the optimal roles of different types of nitrogen atoms in kinetic adsorption, diffusion, and interfacial stability of potassium ions. These findings provide guidance for the experimental design of high rate 2H-MoS2/NC electrode materials and the optimal design of other functional composite materials.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zeeshan Ajmal, Mahmood Ul Haq, Shahid Zaman, M. K. Al-Muhanna, Anuj Kumar, Mohammed M. Fadhali, Siwar Ben Hadj Hassine, Muhammas Qasim, K. F. Alshammari, Ghulam Abbas Ashraf, Abdul Qadeer, Adil Murtaza, Sulaiman Al-Sulaimi, Huaqiang Zeng
Summary: This study presents a novel heterojunction structure (SrTiO3/CN-TAL10.0) for enhanced photocatalytic water splitting (PWS). The incorporation of thiophenedicarboxaldehyde (TAL) through copolymerization significantly improves the photocatalytic activity of carbon nitride (CN) while maintaining its photostability performance. The optimized composition allows efficient isolation of photoinduced charge carriers and enhanced charge transport, resulting in a remarkable increase in overall photocatalytic efficiency.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Angela Arnosa-Prieto, Patricia Diaz-Rodriguez, Manuel A. Gonzalez-Gomez, Pelayo Garcia-Acevedo, Lisandra de Castro-Alves, Yolanda Pineiro, Jose Rivas
Summary: Macrophages can exhibit different phenotypes depending on the microenvironment and the characteristics of magnetic iron oxide nanoparticles (MNPs). This study demonstrates that the concentration and morphology of MNPs can influence the polarization of macrophages. The findings have implications for therapeutics targeting tissue regeneration and tumor progression.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yu Fang, Cheng-Ye Zhu, Hao-Cheng Yang, Chao Zhang, Zhi-Kang Xu
Summary: This study demonstrates the advantages of vacuum-assisted interfacial polymerization (VAIP) in fabricating polyimide nanofiltration membranes. By using vacuum filtration, aqueous solutions of PIP can be evenly distributed on different microfiltration substrates, leading to the fabrication of uniform and ultra-thin polyamide layers with excellent performance. The membranes exhibit high rejection rates and water permeance, as well as satisfactory long-term stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Isaac J. Gresham, Edwin C. Johnson, Hayden Robertson, Joshua D. Willott, Grant B. Webber, Erica J. Wanless, Andrew R. J. Nelson, Stuart W. Prescott
Summary: Understanding the interactions between polymers and surfactants is crucial for optimizing commercial systems. This study tested the behavior of polymer-surfactant systems, revealing that they do not behave like polyelectrolytes in the presence of salt. Additionally, the structure of polymer-surfactant complexes under confinement differs from that of polyelectrolytes.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yunxiao Xie, Cui Liu, Jie Zhang, Yan Li, Bin Li, Shilin Liu
Summary: This study aimed to improve the microstructure and rheological properties of W/W Pickering emulsions by crosslinking sodium alginate at the water-water interface, thereby enhancing the activity of encapsulated probiotics in simulated gastrointestinal digestion.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Sang Ho Lee, Yige Sun, Patrick S. Grant
Summary: This research developed an effective approach to enhance the charging rates of lithium ion batteries (LIBs) by strategically incorporating carbon nanotube (CNT) conductivity boosters into Li4Ti5O12 (LTO) electrodes. Multi-layer architectures comprising CNT-rich and CNT-free LTO electrode layers were manufactured using a layer-by-layer spray coating method to promote charge transfer kinetics of high mass loading electrodes. The best performing multi-layer was paired with a spray-coated LiFePO4 (LFP) positive electrode, resulting in attractive power performance that outperformed conventional LTO || LFP combinations.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jingwei Liang, Shaobin Li, Fengbo Li, Li Zhang, Yufeng Jiang, Huiyuan Ma, Kun Cheng, Liang Qing
Summary: A molybdenum-regulated self-supporting electrode material with rich vacancy defects has been successfully synthesized and shows exceptional catalytic activities and stability for electrocatalytic overall water splitting. This study provides a new perspective for the design and synthesis of non-precious metal bifunctional electrocatalysts.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jonas Blahnik, Jennifer Schuster, Rainer Mueller, Eva Mueller, Werner Kunz
Summary: This study investigates the relationship between the morphology of PMMA monopolymers and PMMA-PHEMA copolymers with the expected nature of surfactant-free microemulsions (SFMEs) before polymerization. It is found that previously mesostructured, surfactant-free mixtures can produce porous polymers of different morphologies, while unstructured, oil-rich regions lead to solid, transparent polymers without nanostructured morphologies. Additionally, a surfactant-based reference system shows similar phase behavior and polymer morphologies as the comparable surfactant-free system, indicating the importance of the hydrotropic behavior of HEMA in this system.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zheng-Fen Pu, Wen-Zhi She, Rong Sheng Li, Qiu-Lin Wen, Bi-Chao Wu, Chun-Hua Li, Jian Ling, Qiue Cao
Summary: This study synthesized two framework-isomeric covalent organic frameworks (COFs) and discovered that the light scattering signal of COFs can be used for the analytical detection of lead ions. By controlling synthesis conditions and introducing regulators, the morphology of COFs could be controlled and framework-isomeric COFs could be precisely synthesized.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yuchen Weng, Ying Hong, Jingyu Deng, Sicheng Cao, Li-Juan Fan
Summary: This paper reports the preparation of dynamic color-changing fluorescent polymer nanoparticles (PNPs) by constructing a fluorescence resonance energy transfer (FRET) pair. The PNPs show excellent anti-counterfeiting effects and reproducibility. The study demonstrates a promising encryption strategy that can achieve multiple outputs with simple operation.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Guodong Liu, Zijian Wang, Jianing Wang, Hanbin Liu, Zhijian Li
Summary: This study investigates the combination of multicolor switchable polyaniline (PANI) electrode and 1-methyl-4,4'-bipyridyl iodide (MBI), which demonstrates superior optical properties in visible and near-infrared light modulation, as well as excellent electrochemical performances. This combination can be used to develop novel electrochromic devices for applications in smart packaging, smart labels, and flexible smart windows.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Huying Yan, Yang Guo, Xingzhi Bai, Jiawei Qi, Haipeng Lu
Summary: By modifying Ti3C2Tx through heterogeneous interface engineering, optimized impedance matching is achieved, leading to enhanced electromagnetic wave absorption performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Kehu Zhang, Yang Zhou, Silvia Moreno, Simona Schwarz, Susanne Boye, Brigitte Voit, Dietmar Appelhans
Summary: This article presents an advanced crosslinking strategy to fabricate clustered polymersomes using host-guest interactions. By controlling the input of crosslinker and environmental conditions, reversible aggregation and disassembly of these polymersomes can be achieved. The size and structure of these clustered polymersomes can be regulated and visualized through a fluorescent enzymatic cascade reaction.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Junjie Xu, Weixiong Huang, Ruiling Li, Li Li, Jinjin Ma, Jiaou Qi, Haiyan Ma, Min Ruan, Lilin Lu
Summary: In this study, a potassium doped palladium catalyst was developed for acetylene hydrogenation, showing excellent catalytic performance and durability. The doping of potassium effectively weakened the adsorption of ethylene, improved ethylene selectivity, and lowered the barriers of hydrogen activation and transfer reactions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)