Article
Green & Sustainable Science & Technology
C. Simari, M. H. Ur Rehman, A. Capri, I. Gatto, V. Baglio, I. Nicotera
Summary: 'Green' hydrogen production using anion exchange membrane (AEM) water electrolysis is a promising approach to address the energy crisis. In order to achieve commercially viable hydrogen generation, improvements in AEM technology, including membrane stability, operating temperature, ion conductivity, power performance, and cost reduction, are essential.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Chemistry, Applied
Samuel Berens, Febrian Hillman, Mohamad Rezi Abdul Hamid, Hae-Kwon Jeong, Sergey Vasenkov
Summary: Pulsed field gradient (PFG) NMR at high magnetic field was used to study molecular self-diffusion of ethylene, ethane, and propylene in a 2-ethylimidazole (eIm) linker-doped ZIF-8. The results indicated that the elm linker substitution tends to increase gas intracrystalline diffusivities, especially for larger elm linker fractions at low loading pressures, without affecting the ethylene/ethane diffusion selectivity.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Biochemistry & Molecular Biology
Aleksandra M. Kusova, Ilnaz T. Rakipov, Yuriy F. Zuev
Summary: The intracellular environment involves the interaction of proteins, sugars, and nucleic acids in a restricted medium. The excluded volume effect in the cytoplasm accounts for 40% of the available volume for macromolecules. This study examines the diffusion of proteins in crowded solutions and demonstrates the deviation from conventional Brownian motion under conditions of altered medium viscosity and rigid obstacles.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Mechanics
Jiangfeng Guo, Michael M. B. Ross, Benedict Newling, Maggie Lawrence, Bruce J. Balcom
Summary: This paper introduces a low-cost permanent magnet design for measuring laminar flow, proposes a series of MR measurement methods for characterizing fluid flow, validates their accuracy, and points out the advantages of simple hardware and measurement methods.
Article
Electrochemistry
Laurence Savignac, Jeremy I. G. Dawkins, Steen B. Schougaard, Janine Mauzeroll
Summary: The study found that saturating the electrolyte with CO2 does not have a significant effect on DLi+ and does not hinder Li+ mass transport.
ELECTROCHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Applied
Amineh Baniani, Matthew P. Rivera, Joao Marreiros, Ryan P. Lively, Sergey Vasenkov
Summary: Mixed-matrix membranes (MMMs) are a promising membrane type for gas and liquid separations. They can be formed by dispersing metal-organic framework (MOF) crystals in polymers. The polymer crosslinking process used in this study did not affect the intra-MOF diffusivities but resulted in a decrease in the effective size of ZIF-71 crystals inside the MMMs.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Article
Chemistry, Physical
Cataldo Simari, Ernestino Lufrano, Giuseppina Anna Corrente, Isabella Nicotera
Summary: The research shows that mechanically oriented sPSU exhibits anisotropy, while recast membranes have better through-plane conductivity. The mechanical extrusion process can produce membranes with superior mechanical strength and anti-swelling ability.
SOLID STATE IONICS
(2021)
Article
Engineering, Chemical
Amineh Baniani, Matthew P. Rivera, Ryan P. Lively, Sergey Vasenkov
Summary: The study investigated the effect of MOF confinement in Torlon on diffusion by dispersing ZIF-71 crystals in Torlon polymer, and found that there was no influence of the ZIF-71 confinement on diffusion.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Patrick Bottke, Katharina Hogrefe, Julia Kohl, Suliman Nakhal, Alexandra Wilkening, Paul Heitjans, Martin Lerch, H. Martin R. Wilkening
Summary: The visualization of atomic or ionic jump processes on a nanometer length scale is important for understanding diffusion pathways in solid electrolytes. This study used high-resolution 6Li nuclear magnetic resonance (NMR) spectroscopy to investigate Li+ exchange processes in Li3VF6. The results confirmed the preferred diffusion pathways and provided further insights into ion dynamics between corner-shared Li-bearing polyhedra.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Chemistry, Physical
Amineh Baniani, Samuel J. Berens, Matthew P. Rivera, Ryan P. Lively, Sergey Vasenkov
Summary: High field PFG NMR studies have shown unique insights and differentiation abilities in diffusion research in nanoporous materials. Anomalous relationships in gas diffusion in ZIF and the influence of mixing different linkers in ZIF on gas self-diffusion have been identified and explained, while quantification of different types of diffusion in hybrid membranes formed by dispersing ZIF crystals in polymers has been achieved. Furthermore, the potential of combining high field PFG NMR with single-crystal infrared microscopy (IRM) for obtaining greater physical insights into diffusion processes has been demonstrated through presented examples.
ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY
(2021)
Article
Chemistry, Physical
A. Zhadan, V Sarou-Kanian, L. Del Campo, L. Cosson, M. Malki, C. Bessada
Summary: The study focuses on a detailed consideration of transport properties in molten carbonate fuel cells, utilizing a combination of different methodological developments and data on 23Na and 7Li self-diffusion coefficients and electrical conductivity. The results were compared with known experimental data and transport property calculations.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Applied
Amineh Baniani, Matthew P. Rivera, Ryan P. Lively, Sergey Vasenkov
Summary: C-13 pulsed field gradient (PFG) NMR was used to measure the self-diffusion of a p-xylene/o-xylene mixture inside zeolitic imidazolate framework-71 (ZIF-71) crystals. The study found that the self-diffusivities of the mixed-matrix membrane and ZIF-71 crystal beds were influenced by the external crystal surface. The study also obtained the self-diffusivities unaffected by crystal surface effects and the diffusion selectivity for the studied sorbate mixture.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Joshua J. P. Thompson, Samuel Brem, Marne Verjans, Robert Schmidt, Steffen Michaelis de Vasconcellos, Rudolf Bratschitsch, Ermin Malic
Summary: Energy transport is crucial for the efficiency of optoelectronic applications. By manipulating strain and dielectric engineering, we demonstrate the possibility to control the speed and direction of exciton diffusion.
Article
Chemistry, Multidisciplinary
Andrei Filippov, Hilde Soenen, Johan Blom, Oleg N. Antzutkin
Summary: Self-diffusion in a bitumen emulsion was investigated using H-1 NMR. The emulsion consists of two phases: continuous and dispersed. The continuous aqueous phase contains mainly water and has the same activation energy for diffusion as bulk water but a lower diffusivity. The dispersed phase is made up of bitumen droplets containing confined water, and their diffusion is fully restricted in cavities with sizes around 0.11 μm. The observed bitumen emulsion can be described by a complex multiple emulsion model of water/oil/water (WOW) type.
Article
Chemistry, Multidisciplinary
Xiaoyu Wang, Yuqi Wang, Yuan Kang, Bing Yao, Xinsheng Peng
Summary: In this study, a strategy utilizing flexible metal-organic framework (MOF, CuTCPP) nanosheet-based membranes to enhance the ionic conductivity and electrochemical performance of micro-supercapacitors (MSC) was introduced. The performance of MSCs with the CuTCPP-DES system surpassed most reported ionic liquid and 2D material-based MSCs. These findings contribute to the exploration and potential optimization of the inherent benefits of MOFs, thereby presenting a paradigm shift in nanoconfined systems for microscale energy storage applications.
Article
Chemistry, Physical
Niels Tannert, Sebastian-Johannes Ernst, Christian Jansen, Hans-Joerg Bart, Stefan K. Henninger, Christoph Janiak
JOURNAL OF MATERIALS CHEMISTRY A
(2018)
Article
Thermodynamics
Matthias S. Treier, Gunther Munz, Andreas Velte, Stefan K. Henninger, Ferdinand R. Schmidt
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID
(2019)
Article
Radiology, Nuclear Medicine & Medical Imaging
Tobias Splith, Frank Stallmach
MAGNETIC RESONANCE IMAGING
(2019)
Article
Multidisciplinary Sciences
Dirk Lenzen, Jingjing Zhao, Sebastian-Johannes Ernst, Mohammad Wahiduzzaman, A. Ken Inge, Dominik Froehlich, Hongyi Xu, Hans-Joerg Bart, Christoph Janiak, Stefan Henninger, Guillaume Maurin, Xiaodong Zou, Norbert Stock
NATURE COMMUNICATIONS
(2019)
Article
Construction & Building Technology
L. Rustam, F. Jeremias, S. K. Henninger, T. Wolff, G. M. Munz
ENERGY AND BUILDINGS
(2019)
Article
Engineering, Chemical
Serkan Goekpinar, Sebastian-Johannes Ernst, Emrah Hastuerk, Marc Moellers, Ilias El Aita, Raphael Wiedey, Niels Tannert, Sandra Niessing, Soheil Abdpour, Alexa Schmitz, Julian Quodbach, Gerrit Fueldner, Stefan K. Henninger, Christoph Janiak
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2019)
Article
Education, Scientific Disciplines
A. Kaps, F. Stallmach
Review
Chemistry, Inorganic & Nuclear
Dominik Moritz Steinert, Sebastian-Johannes Ernst, Stefan K. Henninger, Christoph Janiak
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2020)
Editorial Material
Education, Scientific Disciplines
A. Kaps, F. Stallmach
Article
Education, Scientific Disciplines
Andreas Kaps, Tobias Splith, Frank Stallmach
Summary: Utilizing smartphones with internal sensors in physics experiments is a modern and authentic approach to enhance students' conceptual understanding of physics, by measuring physical quantities such as angular velocity and linear acceleration to investigate various physical phenomena.
Editorial Material
Education, Scientific Disciplines
A. Kaps, F. Stallmach
Summary: Smartphones with internal magnetometers are suitable for quantitative investigations of magnetic fields, providing interesting results in various experiments conducted on the phone.
Article
Education, Scientific Disciplines
T. Splith, A. Kaps, F. Stallmach
Summary: This experiment uses a smartphone as both a pendulum bob and a measurement device to record the angular velocity and angular displacement of the pendulum. The data collected allows for the derivation of the phase space representation of the pendulum motion and analysis of energy plots, showing changes between kinetic and potential energy as well as energy dissipation due to friction.
AMERICAN JOURNAL OF PHYSICS
(2022)
Article
Education, Scientific Disciplines
S. Staacks, D. Dorsel, S. Huetz, F. Stallmach, T. Splith, H. Heinke, C. Stampfer
Summary: This paper presents methods for implementing collaborative experimentation with smartphone sensors for larger audiences, ranging from university courses to global outreach. The methods utilize an app called "phyphox" developed by the authors, and include simple data collection through web forms as well as a new network interface, facilitating real-time data collection from on-site participants and easy data submission for remote participants. Practical examples and considerations derived from implementing this method in a lecture hall with 350 undergraduate students and a global experiment to determine the Earth's axial tilt with smartphones are provided.
EUROPEAN JOURNAL OF PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Dirk Lenzen, Jakob G. Eggebrecht, Paulo G. M. Mileo, Dominik Froehlich, Stefan Henninger, Cesare Atzori, Francesca Bonino, Alexandra Lieb, Guillaume Maurin, Norbert Stock
CHEMICAL COMMUNICATIONS
(2020)
