Michael J. Bojdys joined the Charles University in Prague (Czech Republic) in 2014 as an Assistant Professor. His current research interest lies in the field of functional nanomaterials for semiconductor applications, gas storage and catalysis.
Previously, Michael was holder of a research fellowship of the German Academic Exchange Service (DAAD) at the Technische Universität Berlin (Germany). He worked as a postdoctoral researcher at the University of Liverpool (UK) from 2010 to 2013. He completed his PhD thesis between 2006 and 2009 "On new allotropes and nanostructures of carbon nitrides" at the Max Planck Institute of Colloids and Interfaces in Potsdam (Germany). In 2006 he graduated as Master of Natural Sciences at the University of Cambridge (UK).
Researchers have developed a groundbreaking membrane technology by incorporating a novel covalent organic framework (COF), CPSF-EtO, into polymers with intrinsic microporosity (PIM-1), enhancing gas separation efficiency and membrane longevity. This innovative approach led to a significant 50% increase in carbon dioxide permeability and a 27% improvement in CO2/N2 selectivity, crucial for applications in carbon capture and natural gas purification. The addition of CPSF-EtO not only facilitates gas transport by creating additional free volume within the membrane but also counteracts the physical aging that typically diminishes membrane performance over time.
This advancement in membrane technology marks a significant leap forward, offering a more sustainable and cost-effective solution for gas separation processes, with promising implications for environmental protection and resource utilization.
Emamverdi, F.; Huang, J.; Szymoniak, P.; Bojdys, M. J.; Böhning, M.; Schönhals, A. Mater. Adv.2024. DOI: 10.1039/d3ma01123b
Scientists have identified a glass transition in amorphous covalent organic frameworks (COFs), a finding that challenges the conventional understanding of these materials. The research focused on two novel phosphinine-based COFs, distinguished by methoxy (CPSF-MeO) and ethoxy (CPSF-EtO) groups, revealing significant differences in their thermal behavior and structure.
The analysis demonstrated that CPSF-EtO transitions into a glass state at a temperature approximately 100 K higher than CPSF-MeO, attributed to the different ways in which the molecular layers stack and interact. This behavior was confirmed through both calorimetry and dielectric measurements, suggesting that these amorphous COFs exhibit glass-like properties.
This breakthrough opens up new possibilities for the application of COFs in various technologies, including gas storage and separation, by harnessing their unique structural and thermal characteristics.
Als Teil der ‚100+ Gesichter für Zukunft – ganz Berlin eine Weltausstellung‘ setze ich mich mit dem Global Goals für Berlin e.V. für diese Vision ein. Erfahren Sie mehr: https://globalgoalsberlin.de/gesichter/
Burmeister,* D.; Eljarrat, A.; Guerrini, M.; Röck, E.; Plaickner, J.; Koch, Ch. T.; Banerji, N.; Cocchi, C.; List-Kratochvil, E. J. W.; Bojdys,* M. J. Chem. Sci.2023. DOI: 10.1039/D3SC00667K
PTI nano-crystals have quenched electroluminescence. Disorder at crystal interfaces limits charge transport in PTI films. For future device applications, single crystal devices using electron transport in the lowest conduction band show promise.
Interestingly, this is one of the first (?) publications in the chemical sciences that was openly co-authored by OpenAI’s GPT-3 that we used for the generation of the introduction section (see Acknowledgements). When generating an “Aristotelian narrative” (introduction, crisis, outlook), GPT was incredibly fast and effective.
We hope that this publication will contribute to along-overduediscussionin academic publishing on whether the the static and “dead” publication in form of a PDF (especially as a summative“review“article)still is relevant and appropriate.Inshort:dowestill need narrativepublications, or should we aim for “Impact, not impact factor”.
[Press-release] IDW-online “Neue Produktionsmethode für flexible, langlebige Anoden mit hoher Kapazität im Verhältnis zum Gewicht”
We present a Si-based anode with superior-performance close to the limits of theoretical capacities with an advantage of factor ×10 over any hitherto produced, commercial electrode system.
Our electrodes sustain physical bending without surface reconstruction or crack formation, and heat shocks without loss of capacity and overall cycling performance.
The critical, novelty that enables the extraordinary performance increase and durability of our anodes is a class of semi-conducting porous organic polymers that replaces all conventional additives in battery ink formulations.
Ionothermal condensation of dicyandiamide in alkali halide salt melts leads to the formation of extended 2D, layered frameworks only in the presence of small halides such as chloride, and bromide. With increasing size of the alkali halide intercalate, stabilizing van der Waals interactions between extended, π-conjugated triazine-based sheets are lost. We identify the main, crystalline product from an alkali iodide eutectic as melem hydrate, a heptazine (C6N7)-based, hydrogen-bonded, monoclinic solid.