Article
Chemistry, Multidisciplinary
M. Aravind, Alina Peethan, Sajan D. George
Summary: By selectively grafting silicone oil onto a glass substrate, a wettability contrast of approximately 43 degrees can be created, allowing for the capture and transport of bubbles underwater and collection of water from mist. This study demonstrates the potential of this method in underwater bubble collection and water harvesting.
Article
Nanoscience & Nanotechnology
Yifeng Ni, Sheng Qian, Qi Tong
Summary: This paper presents a reversible transfer printing technique that tailors adhesion by selectively stretching surfaces. Through molecular dynamics simulations, the researchers demonstrate the transfer of nanoscale substances between two graphene surfaces with strains switched on and off, and reveal the mechanisms behind the dynamic behaviors during the transfer process.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Mechanical
Li Shuyi, Guo Feng, Wong Pat Lam, Li Xinming
Summary: Under limited lubricant supply condition, poor surface wettability can enhance the lubrication of a slider bearing by inducing discontinuous oil droplets on the lubrication track.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Engineering, Environmental
Hanpeng Gao, Siyu Chang, Yan Liu, Zong Meng, Zhiwu Han, Luquan Ren
Summary: By utilizing switchable wettability and reasonable alternating wetting, biomimetic surfaces for manipulating underwater oil droplets were successfully fabricated. These surfaces have cross-contamination resistance, stable wettability, and rewritability, which expand their application field and improve their potential value.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Multidisciplinary Sciences
Jian Hou, Ming Han, Jinxun Wang
Summary: This study reveals that different surface charges of oil droplets and carbonate rocks in surfactant solutions have significant impacts on oil recovery, indicating the importance of surface charge in addition to factors such as interfacial tension reduction and wettability alteration in surfactant flooding for enhanced oil recovery.
SCIENTIFIC REPORTS
(2021)
Article
Engineering, Chemical
Yun-Yun Song, Xu Zhang, Jia-Lei Yang, Zhong-Qiang Zhang, Guang-Gui Cheng, Yan Liu, Guo-Jun Lv, Zhao-Peng Yu
Summary: Industrial wastewater and produced water containing oil droplets must be processed properly to meet environmental standards before discharge, as it can pose a serious threat to marine life, the ecological environment, and human health. To address the challenge of oil-water separation, a superhydrophobic-superoleophilic surface with conical micro-arrays was developed to achieve ultrafast sorption of micro-oil droplets in water, providing a theoretical basis and technical support for fabricating underwater apparatuses for efficient oil droplet recovery from multiphase mixtures.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Ming Wang, Boyun Guo
Summary: Ceramic fracture proppants are widely used for increasing the recovery of fossil energy and geothermal energy. This study developed an innovative method to measure the contact angles of fracture proppant packs and investigated the effect of oil contact angle on water/oil flow. Both water and oil contact angles should be considered in the classification of proppant packs' wettability.
Article
Agronomy
Meng Li, Zhen Wang, Huanwen Meng, Baozhu Dong, Xile Deng, Hongyou Zhou
Summary: Three types of matrine oil-based suspension concentrates (ODs) were prepared and their storage stability, suspensibility, viscosity, surface tension, contact angle, droplet density, fraction of coverage, maximum retention, indoor control, effect of adhesion tension, and adhesion work were studied. All three types of matrine ODs exhibited favorable stability and superior wetting and spraying performance compared to matrine soluble concentrates (SLs). Among the three types, the suspension made with emulsifier VO/03 showed the best viscosity, wettability, spray performance, and maximum retention, and it effectively controlled Spodoptera frugiperda. Increasing solution concentration improved droplet spreading velocity and wetting. The matrine OD prepared with emulsifier VO/03 exhibited the most effective wetting and spraying properties, making it suitable for ultra-low-volume spraying and aerial application. This study provides new insights into the efficient use of plant-based pesticides.
Article
Energy & Fuels
Pedro Tupa Pandava Aum, Yanne K. Pereira Gurgel Aum, Edson de Andrade Araujo, Luyara de Almeida Cavalcante, Daniel Nobre Nunes da Silva, Claudio Regis dos Santos Lucas, Tereza Neuma de Castro Dantas
Summary: This study investigates the stability and interaction of oil-in-water microemulsions prepared with nonionic surfactants under acid conditions with carbonate formations. The presence of acid was found to increase the stability of the microemulsion systems, while also altering the spreading pattern of the acid systems on the carbonate rock surface.
Article
Nanoscience & Nanotechnology
Chengcheng Zhang, Solomon Adera, Joanna Aizenberg, Zhan Chen
Summary: The research found that molecular interactions between two contacting liquids can be manipulated by implementing nanostructured substrates, leading to water repellency and addressing the issue of oil depletion. This offers insights into the molecular principles for controlling nanostructures to improve the performance of slippery liquid-infused porous surfaces (SLIPS).
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Chenlei Chu, Yinggang Zhao, Pengfei Hao, Cunjing Lv
Summary: By varying the contact angle and geometry of the pillared textures, the wetting transition of individual droplets during condensation has been quantified. Four different wetting state transition modes have been identified and classified in a phase diagram. Simple theories correlating the critical conditions of the wetting state transition to the wettability and geometry of the textures have been constructed and experimentally verified.
Article
Chemistry, Physical
Kai Guo, Xiaoya Liu, Yuling Lu, Limin He, Xiaoming Luo, Donghai Yang
Summary: In this paper, the spreading evolution of oil droplets on patterned substrates with different structure sizes is investigated through numerical simulations. The factors influencing the motion behavior of oil droplets are analyzed, and a functional surface that enhances the adhesion and wetting spreading of oil droplets in water is proposed. The results provide a basis for further research on droplet infiltration spread and the improvement of oil-water separation efficiency.
COLLOID AND POLYMER SCIENCE
(2023)
Article
Chemistry, Physical
Josua Grawitter, Holger Stark
Summary: In this study, a boundary-element method was used to simulate the movement of droplets on substrates with spatio-temporal wettability patterns. It was found that droplets move towards higher wettability regions in step profile wettability patterns and a feedback loop can maintain a constant velocity for droplets surfing on wettability steps.
Article
Chemistry, Physical
Lu Yuling, Wang Yingying, Wang Shipeng, He Limin, Ye Tianxu
Summary: This study investigates the spreading behaviors of oil droplets on different substrates by combining experimental observation and theoretical model. Quantitative relationships among the dimensionless maximum spreading diameter, the diameter of oil droplets, the properties of oil and water, and the wettabilities of surfaces were obtained through this research. The theoretical model was verified using experimental data with deviations generally ranging within ? 10%.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Mechanics
Yueming Sun, Alexander V. V. Bazilevsky, Konstantin G. G. Kornev
Summary: With the development of nanotechnology, nanofibrous materials have gained attention in fluidic engineering. This study aims to categorize the possible axisymmetric configurations of droplets on fibers, introducing nodoidal apple-like droplets and unduloidal droplets. The existing theory of axisymmetric droplets on fibers is enriched by these new morphological configurations. The theory is experimentally confirmed and has potential applications in nanofiber-based fluidic devices and drop-on-demand technologies.
Article
Energy & Fuels
Z. P. Alcorn, S. B. Fredriksen, M. Sharma, A. U. Rognmo, T. L. Foyen, M. A. Ferno, A. Graue
SPE RESERVOIR EVALUATION & ENGINEERING
(2019)
Article
Engineering, Chemical
Bergit Brattekas, Oyvind Eide, Sigbjorn Aasheim Johansen, Snorre Sande Vasshus, Andreas Groteide Polden, Martin A. Ferno
TRANSPORT IN POROUS MEDIA
(2020)
Article
Geosciences, Multidisciplinary
M. Sharma, Z. P. Alcorn, S. B. Fredriksen, A. U. Rognmo, M. A. Ferno, S. M. Skjaeveland, A. Graue
PETROLEUM GEOSCIENCE
(2020)
Article
Green & Sustainable Science & Technology
Halidi Abdoulghafour, Mohammad Sarmadivaleh, Lars Petter Hauge, Martin Ferno, Stefan Iglauer
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2020)
Article
Water Resources
B. Brattekas, J. Gauteplass, N. Brekke, M. A. Ferno, G. Ersland
ADVANCES IN WATER RESOURCES
(2020)
Article
Green & Sustainable Science & Technology
T. Foyen, B. Brattekas, M. A. Ferno, A. Barrabino, T. Holt
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2020)
Article
Energy & Fuels
T. Foyen, Z. P. Alcorn, M. A. Ferno, A. Barrabino, T. Holt
Summary: Foam generated by surfactants can effectively reduce CO2 mobility and improve efficiency in CO2 storage and enhanced oil recovery. Experimental studies are conducted to evaluate the behavior of surfactants in reservoir conditions, and numerical simulations are used to predict the impact of foam. Results show that different surfactants can significantly reduce CO2 mobility and stabilize foam for improved performance in subsurface applications.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Article
Energy & Fuels
Oyvind Eide, Martin Ferno, Steven Bryant, Anthony Kovscek, Jarand Gauteplass
JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
(2020)
Article
Chemistry, Multidisciplinary
Zachary Paul Alcorn, Tore Foyen, Jarand Gauteplass, Benyamine Benali, Aleksandra Soyke, Martin Ferno
Article
Chemistry, Physical
Maksim Lysyy, Martin Ferno, Geir Ersland
Summary: This study explores numerical simulations of seasonal hydrogen storage in the Norne hydrocarbon field offshore Norway, finding that the thin gas zone is the most suitable target for hydrogen storage and suggesting that pre-injection of formation gas as a cushion gas can increase hydrogen recovery.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Green & Sustainable Science & Technology
Benyamine Benali, Tore L. Foyen, Zachary Paul Alcorn, Malin Haugen, Jarand Gauteplass, Anthony R. Kovscek, Martin A. Ferno
Summary: The flow of CO2 foam in porous media is influenced by the foam texture, or bubble density. In this study, we investigated the real-time dynamics of foam texture at high pressure using a realistic pore network. We found that snap-off is the main foam generation mechanism, and foam coalescence results in large gas channels that decrease the overall foam viscosity. A significant fraction of the CO2 foam remains trapped in the pores, diverting CO2 flow and increasing sweep efficiency. Understanding the evolution of foam texture can help validate numerical foam models and facilitate the implementation of CO2 foam for carbon utilization and storage applications.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2022)
Article
Water Resources
Maksim Lysyy, Geir Ersland, Martin Fern
Summary: Underground hydrogen storage (UHS) is a catalyst for low-carbon energy transitions, but there is limited understanding of the subsurface processes. This study uses microfluidics to experimentally study the pore-scale multiphase hydrogen flow in an aquifer storage scenario, revealing the effects of capillary number on hydrogen saturations, displacement/trapping mechanisms, dissolution kinetics, and contact angle hysteresis.
ADVANCES IN WATER RESOURCES
(2022)
Article
Biochemical Research Methods
Sujit S. Datta, Ilenia Battiato, Martin A. Ferno, Ruben Juanes, Shima Parsa, Valentina Prigiobbe, Enric Santanach-Carreras, Wen Song, Sibani Lisa Biswal, David Sinton
Summary: Transitioning to a sustainable future requires a transformation of energy and environmental technologies. Lab-on-a-chip (LoC) systems can contribute to this transition by studying and developing new processes and materials in areas such as carbon sequestration, hydrogen storage, geothermal energy extraction, bioenergy, critical materials recovery, and water filtration. It is important to engage the LoC community and raise awareness among researchers, industry experts, and policy makers about the potential of LoC approaches in achieving a low-carbon future.
Proceedings Paper
Geochemistry & Geophysics
M. Sharma, Z. P. Alcorn, S. B. Fredriksen, M. A. Ferno, A. Graue
PETRO-PHYSICS AND ROCK PHYSICS OF CARBONATE RESERVOIRS: LIKELY ELUCIDATIONS AND WAY FORWARD
(2020)
Article
Engineering, Petroleum
T. L. Foyen, M. A. Ferno, B. Brattekas
