Article
Optics
Zeeshan Ahmed, Ajinkya Sarode, Abhishek Kumar Tripathi, Satyajeet Parida, V. K. Singh
Summary: This paper introduces a low-cost goniometer/tensiometer for measuring contact angle and surface tension values. Accurate static contact angles and surface tension values can be computed using image processing software and high-quality images. The reliability of the apparatus is demonstrated through validation experiments and comparison with literature results. The device is portable and affordable, making it suitable for scientific research labs and industrial applications.
Article
Engineering, Multidisciplinary
Syed Shabhi Haider, Justyna Barzowska, Piotr Sybilski, Andrzej Suchocki
Summary: An alternative approach has been adopted to construct low-cost laboratory equipment for measuring the mechanical impact-induced mechanoluminescence properties of materials. The setup allows for the study of the correlation between kinetic energy loss during impact and the intensity of the resulting mechanoluminescence. The apparatus is also useful for analyzing the mechanism of mechanoluminescence and persistent luminescence.
Article
Thermodynamics
B. B. Kazemian, P. Cheng
Summary: A variable solid-fluid interaction strength scheme compatible with the lattice Boltzmann method is introduced to investigate contact angle hysteresis phenomena numerically. The method is demonstrated to accurately reproduce the observed behaviors during droplet sliding and evaporation processes, and the results are in agreement with previous experimental investigations.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Chemistry, Physical
Abrar Ahmed, Raymond Sanedrin, Thomas Willers, Prashant R. Waghmare
Summary: The study suggests that drop deposition techniques can impact contact angle measurements, mainly due to drop pinch-off and dynamic wetting pressure. Experimental comparison of parameters in pendant drop and liquid-needle techniques reveals a pronounced drop volume dependency for the former but not the latter. This highlights the importance of well-controlled drop deposition to ensure accurate contact angle data independent of deposition effects.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Engineering, Chemical
Gino Mathlouthi, Simon Kuegele, Fatmaalzahraa Elsayed, Ralf Voss, Peter Renze, Michael Kaufeld, Thomas Gruetzner
Summary: Additive manufacturing (3D printing) is a promising approach for creating packings for laboratory-scale distillation columns. Current research focuses on tailoring packing geometry through experiments and simulations to improve performance. The wetting behavior of the printed surface is found to be significantly affected by the 3D-printing process settings, and it needs to be accurately quantified for evaluating the effectiveness of printed packing geometry.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Soil Science
Yuqin Wu, Song Yang
Summary: In this study, a method that combines models of unsaturated soil with contact angle measurement methods is presented. The characteristics of soil contact angle were studied using the sessile drop method (SDM) and the direct observation method (DOB). The results showed significant differences between the CA values measured with SDM and DOB, as SDM measures the CA of a surface while DOB measures the CA between soil particles at a smaller scale.
SOIL & TILLAGE RESEARCH
(2023)
Article
Chemistry, Analytical
Kamil Cetin, Harun Tugal, Yvan Petillot, Matthew Dunnigan, Leonard Newbrook, Mustafa Suphi Erden
Summary: This study presents an experimental robotic setup with a Stewart platform and a robot manipulator to emulate an underwater vehicle-manipulator system. The setup allows for studying control techniques in a dry lab environment, bypassing the difficulties of conducting similar experiments with actual underwater vehicles in water tanks.
Article
Engineering, Multidisciplinary
Maurilio Pereira Gomes, Samantha Michelle Gateman, Isolda Costa, Oumaima Gharbi, Kieu Ngo, Jesualdo Luiz Rossi, Mireille Turmine, Vincent Vivier
Summary: A new experimental setup for local electrochemical impedance spectroscopy (LEIS) has been developed, allowing for measurements over a wide frequency range, including the low frequency domain. The setup includes improved signal treatment and a unique three-electrode LEIS probe, enabling reliable and time-sensitive measurements in various fields.
Article
Engineering, Chemical
Fanny Thomas, Didier Dalmazzone, Jeffrey F. Morris
Summary: The wetting characteristics of ice-like clathrate hydrates at atmospheric pressure were studied using a new experimental method to measure the contact angle of various liquids. The results showed that the hydrate surface is water-wetting.
CHEMICAL ENGINEERING SCIENCE
(2021)
Article
Chemistry, Physical
Ashish Kumar Singh, Bhawna Chugh, Manjeet Singh, Sanjeeve Thakur, Balaram Pani, Lei Guo, Savas Kaya, Goncagul Serdaroglu
Summary: This study presents the synthesis and evaluation of four environmentally benign corrosion inhibitors on mild steel in hydrochloric acid medium, using various experimental and microscopic techniques, as well as complementing wet-chemical experimental outcomes with results from ab initio DFT study and MD simulation for further analysis of surface characteristics. The MD simulation outcomes provide visualization of interaction and adsorption of inhibitors on the Fe (110) surface.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Chemical
Ziwen Zuo, Junfeng Wang, Yuanping Huo, Dongbao Wang, Hongbing Ji
Summary: The relationship between capillary force and contact surface roughness was studied by investigating the movement of the liquid column inside a slit. It was found that under homogeneous wetting, capillary force is independent of the roughness, while under heterogeneous wetting, capillary force is positively correlated with roughness.
Article
Mechanics
Valeria A. Dekhtyar, Alexander E. Dubinov
Summary: This paper experimentally studied the states of liquid drops on a horizontally elastic substrate that was cyclically stretched and weakened. A thin rubber band served as the substrate, and glycerin was used as the liquid. The study discovered a multi-branch hysteresis of the drop states, which could be adjusted by changing the time program for stretching and loosening the substrate tension.
Article
Thermodynamics
Mira Simmler, Manuel Meier, Luisa Rank, Gernot Buth, Anton Plech, Hermann Nirschl
Summary: A sophisticated technique using small angle X-ray scattering (SAXS) was developed to investigate the particle formation mechanism of zirconia nanoparticles in a turbulent spray flame. The measurements revealed a significant dependence of scattering intensity as a function of height above the burner. Detailed analysis of the SAXS data and comparison with TEM images provided insights into primary particle growth, fractal properties, and aggregation process.
PROCEEDINGS OF THE COMBUSTION INSTITUTE
(2023)
Article
Thermodynamics
Kittipong Sakamatapan, Mehrdad Mesgarpour, Omid Mahian, Ho Seon Ahn, Somchai Wongwises
Summary: The experimental results showed that as the water flow rate increased, the airflow rate also increased, resulting in smaller but more numerous microbubbles.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Review
Chemistry, Physical
Raziyeh Akbari, Carlo Antonini
Summary: Contact angle measurement is an effective way to investigate solid surface properties, and the development of low-cost digital cameras and software has made this method potentially accessible to every laboratory. Various methods for evaluating contact angle from digital images have been compared and implemented in the open-source software Dropen, aiming to minimize user inputs and automate the process for all users. Dropen and its code are available for use and further development in the Bicocca Open Access public repository.
ADVANCES IN COLLOID AND INTERFACE SCIENCE
(2021)
Article
Physics, Multidisciplinary
Guillaume Lamour, Antoine Allard, Juan Pelta, Sid Labdi, Martin Lenz, Clement Campillo
Article
Chemistry, Physical
Parisa Yasini, Stuart Shepard, Tim Albrecht, Manuel Smeu, Eric Borguet
JOURNAL OF PHYSICAL CHEMISTRY C
(2020)
Article
Chemistry, Multidisciplinary
Aashish Tuladhar, Shalaka Dewan, Simone Pezzotti, Flavio Siro Brigiano, Fabrizio Creazzo, Marie-Pierre Gaigeot, Eric Borguet
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2020)
Article
Chemistry, Physical
Isabella Goodenough, Venkata Swaroopa Datta Devulapalli, Wenqian Xu, Mikaela C. Boyanich, Tian-Yi Luo, Mattheus De Souza, Melissandre Richard, Nathaniel L. Rosi, Eric Borguet
Summary: The UiO-67 MOFs exhibit negative thermal expansion behavior and high thermal stability. Activated UiO-67 samples show higher thermal stability in the absence of oxygen compared to ambient or inert environments. Two stages of change are observed during thermal treatment, related to the structure and isotropic thermal expansion behavior of the materials.
CHEMISTRY OF MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Ty Christoff-Tempesta, Yukio Cho, Dae-Yoon Kim, Michela Geri, Guillaume Lamour, Andrew J. Lew, Xiaobing Zuo, William R. Lindemann, Julia H. Ortony
Summary: The study introduces a small-molecule platform called aramid amphiphile, which exhibits stability and can self-assemble in water to form nanoribbons with high strength and toughness. These nanoribbons can be further organized into dry threads that can support 200 times their weight, extending small-molecule self-assembly to macroscopic materials and enabling new possibilities for solid-state applications.
NATURE NANOTECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Dae-Yoon Kim, Ty Christoff-Tempesta, Guillaume Lamour, Xiaobing Zuo, Ki-Hyun Ryu, Julia H. Ortony
Summary: The passage introduces a photoswitchable aramid amphiphile that self-assembles in water to form nanostructures, with a reversible transition from nanoribbons to nanotubes upon UV irradiation. The stability and switchability of the photoresponsive AA nanostructures make them suitable for a range of future applications. Mechanisms for the nanoribbon-to-nanotube rearrangement and vice versa are proposed based on electron microscopy observations.
Review
Chemistry, Multidisciplinary
Ruiyu Wang, Michael L. Klein, Vincenzo Carnevale, Eric Borguet
Summary: Water/oxide interfaces play a significant role in many chemical processes and have been the focus of research utilizing advanced experimental techniques and computational simulations. The understanding of these interfaces is crucial for developing better fuel cells and solar cells to address the energy crisis. Despite the limitations in knowledge, progress has been made in classical and ab initio molecular dynamics simulations of water/oxide interfaces.
WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Venkata Swaroopa Datta Devulapalli, Ryan P. McDonnell, Jonathan P. Ruffley, Priyanka B. Shukla, Tian-Yi Luo, Mattheus L. De Souza, Prasenjit Das, Nathaniel L. Rosi, J. Karl Johnson, Eric Borguet
Summary: The interaction between ammonia and Zr MOFs was studied, revealing the binding mechanisms and stable adsorption properties.
Review
Chemistry, Physical
Stefan M. Piontek, Eric Borguet
Summary: The dynamics of water at mineral surfaces have attracted significant attention due to the differences in the ability of interfacial water populations to redistribute vibrational energy compared to the bulk water. However, there are still many unanswered questions regarding these systems. In this review, the evolution of our understanding and the current state-of-the-art interpretation for three important mineral/water interfaces are discussed. Vibrational dynamics provide unique insights into interfacial structure that may be missed by traditional static vibrational spectroscopy.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Multidisciplinary Sciences
Yukio Cho, Ty Christoff-Tempesta, Dae-Yoon Kim, Guillaume Lamour, Julia H. Ortony
Summary: By designing supramolecular nanoribbons with inert internal domains and thermally labile sacrificial surface groups, it is possible to achieve thermal decomposition and post-assembly chemical reactions, bypassing traditional amphiphilic constraints and expanding the application range of molecular nanomaterials.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Farbod Alimohammadi, Parisa Yasini, Tim Marshall, Nuwan H. Attanayake, Eric Borguet, Daniel R. Strongin
Summary: The layer by layer (LbL) method was used to assemble catalytic materials for the electrochemical hydrogen evolution reaction (HER). The catalytic activity of the assembled material was investigated as a function of the number of deposition layers. The results showed that the thickness and roughness of the deposited material increased with the number of layers. Upon conversion of the deposited material to a semiconducting phase, the HER activity of the two phases was compared. It was found that the 1T-MoS2 phase exhibited lower overpotential for the HER compared to the 2H-MoS2 phase. The overpotential decreased as the mass loading increased.
Article
Nanoscience & Nanotechnology
Venkata Swaroopa Datta Devulapalli, Rinku Kushwaha, Edwin Ovalle, Himan Dev Singh, Pragalbh Shekhar, Debanjan Chakraborty, Chathakudath Prabhakaran Vinod, Ramanathan Vaidhyanathan, Eric Borguet
Summary: This study functionalized covalent organic frameworks (COFs) with gold and cobalt nanoparticles using a one-step aqueous synthesis process, and examined their catalytic activity in reducing methyl orange and methylene blue. The results showed that AuCoCOF had superior kinetics in reducing methyl orange compared to other catalysts. The dispersion of nanoparticles on the COF support and the material stability were confirmed, and the redox activity of the catalysts was investigated.
ACS APPLIED NANO MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Jose Leobardo Banuelos, Eric Borguet, Gordon E. Brown, Randall T. Cygan, James J. DeYoreo, Patricia M. Dove, Marie-Pierre Gaigeot, Franz M. Geiger, Julianne M. Gibbs, Vicki H. Grassian, Anastasia G. Ilgen, Young-Shin Jun, Nadine Kabengi, Lynn Katz, James D. Kubicki, Johannes Luetzenkirchen, Christine V. Putnis, Richard C. Remsing, Kevin M. Rosso, Gernot Rother, Marialore Sulpizi, Mario Villalobos, Huichun Zhang
Summary: Interfacial reactions play important roles in elemental cycling on Earth and various human activities. Advances in techniques, such as ultrafast laser and X-ray sources, nanofabrication approaches, and computational chemistry, have enabled a more detailed understanding of mineral aqueous interfaces at atomic and nanometer scales. This critical review explores the progress made in the past 20 years and identifies challenges and future opportunities in understanding and predicting dynamic transient and reactive structures across greater spatial and temporal ranges, as well as systems of greater complexity.
Article
Chemistry, Physical
Ryan P. Mcdonnell, Venkata Swaroopa Datta Devulapalli, Tae Hoon Choi, Laura Mcdonnell, Isabella Goodenough, Prasenjit Das, Nathaniel L. Rosi, J. Karl Johnson, Eric Borguet
Summary: UiO-67 metal-organic frameworks (MOFs) have potential applications in various fields, and thermal activation can induce catalytically active defects. In this study, the effect of thermal activation on defect concentration in UiO-67 was investigated using Fourier transform infrared spectroscopy. The results show that thermal activation affects the concentration and type of Lewis acid defects in UiO-67.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
Venkata Swaroopa Datta Devulapalli, Melissandre Richard, Tian-Yi Luo, Mattheus L. De Souza, Nathaniel L. Rosi, Eric Borguet
Summary: The kinetics of hydrolysis of DMNP, a simulant of the nerve agent Soman, was studied revealing transition metal salts as catalysts. The relative rates of DMNP hydrolysis by zirconium and hafnium chlorides are consistent with their Lewis acidity. In situ conversion of zirconium chloride to zirconium oxy-hydroxide was identified as the key step in the process, suggesting a precursor-MOF activity relationship.
DALTON TRANSACTIONS
(2021)
