SpinChem’s Post

Latest paper is just out in the Journal of Physical Chemistry C! A collaboration supported by funding from Italian Ministry of Education, Universities and Research through the prin-doMino project between Dipartimento di Chimica e Chimica Industriale-UniPi and our next-door neighbours at CNR-ICCOM, using the infrastructure of Centro CISUP. Led by Francesca Nardelli and Lucia Calucci, we have explored the dynamics of CO2 inside two metal-organic frameworks based on the same metal (Ce) and organic linker (tetrafluoroterephthalic acid), but with different crystal structures. Such fundamental insight helps us in understanding how pore shape/size and surface chemistry influence the CO2 adsorption behaviour, feeding into the process of developing and identifying better solid sorbents for CO2 capture applications. https://lnkd.in/eRm8R6wZ

I am pleased to share my latest paper on organic electrochemical transistors, the first one from my Ph.D. In this paper, we established guidelines for measuring volumetric capacitance in OECTs, comparing the common electrochemical impedance spectroscopy with a transient current technique. We were able to demonstrate that C* depends on both drain and gate voltages, highlighting C* as not only a material parameter but also a device parameter. https://lnkd.in/dex8uEtn

A new paper published! Great work by Patrick Kwon and Deepesh Karmacharya, using the set-up designed by Elizabeth Stallings Young, P.E., Ph.D. This 1 m scale tank test provides insight in the complex multiphase reactive transport processes during microbial induced desaturation and precipitation in stratified silty sand. https://lnkd.in/d5GvJpPq The movie below shows the second out of 10 treatment cycles, which started at day 14. Substrates were injected for 36 hours from left to right. The red food dye showed how seepage pathways were affected by the biogenic gas formed in the first treatment cycle, which caused the average seepage velocity to almost double. During and after injection gas was produced in the lower sand layer, which desaturated the sand and increased pore pressure , which then created seepage paths for the gas to flow up through the middle silt layer (white) and eventually escape the upper sand layer, by lifting up the upper silt layer several times during day 16 and 17.

#spotlight #on! 💡   This week we will present the work of Marko Schiele, a PhD candidate at the Lehrstuhl für Mechanische Verfahrenstechnik - Wassertechnik: “#Coagulation and #flocculation are important water treatment processes that destabilize and agglomerate suspended particles to form larger, settleable flocs that can be removed by sedimentation or filtration. The coagulation process is nowadays almost exclusively relying on metal-based coagulants such as iron or aluminum, often in combination with synthetic organic polymers. The project ”#NatureFloc” is aiming at a more #eco-#friendly coagulation process. We characterize, compare and test coagulants on base of natural raw materials such as #starch or #chitosan (a polymer derived from the shells of shrimps, aiming at a legal approval of natural-based coagulants in Germany.” If you want to learn more, follow the link to our faculty website: https://lnkd.in/e5Dtzba2 Interested in getting featured yourself? Simply get in touch with Miriam Böhm 😊

📢 📢 📢 Call for Papers!!! ✍ ✍ ✍ “Process intensification challenges and opportunities for sustainable separation and purification technologies” We invite submissions of Original Research Articles or Review papers focusing on research related to process intensification in the field of separation and purification technology. 🗓 First submission date: 18th March 2024 🗓 Deadline for submission: 30th September 2024   For more information, please visit the official page for SI here: https://lnkd.in/giSpfC3x When submitting, please select the article type “SI: PI Sus Sep”. All submissions must incorporate components related to process intensification. Manuscripts lacking evident opportunities for process intensification will be returned to authors for potential consideration in a standard issue. For any inquiries about the appropriateness of contribution topics, please contact us! #Intensification #Membranes #Separation #Distillation #Extraction #Supercriticalfluid #Hybridseparationsystems #Pervaporation

Conducted a literature review on the Chemical Mechanism of Fireworm Bioluminescence- A Theoretical Approach for my Chemical Communications course. I found it fascinating that after publishing the paper, they started experimenting using real protein environments in order to obtain the luciferase-luciferin complex by implementing the theoretical chemical mechanism of fireworm BL. #CPPChemistryPoster2024

Beautiful new materials from Ruihua Zhang, Chun Tang, and Fraser Stoddart and simulations of their hydrogen storage properties from Hilal Daglar in this new paper in Nature Chemistry. https://lnkd.in/gm97YdJ5

🚀 Exciting News! Our latest study titled "Template-Assisted Assembly of DPP-TTT over a Hydrophilic Liquid Subphase toward Enhanced Charge Transport in Organic Field-Effect Transistors" has been published in ACS Applied Polymer Materials! 🔍 In this work, we've developed a highly oriented polymer composite thin film using a novel and cost-effective method: unidirectional floating film transfer at the air-liquid interface. 💡 The significance- Our approach not only focuses on fabrication costs but also significantly improves the thin film's orientation and charge transport properties—key factors for enhancing the performance of organic field-effect transistors. #PolymerScience #OrganicElectronics #MaterialScience #Innovation #ResearchHighlight

In the rush of the end of the spring semester, I overlooked highlighting our recent paper sensing corrosion in organic solvents out in the Journal of ECS - The Electrochemical Society. First, you can check out the paper here: https://lnkd.in/dADv97MC Next, here is what we learned: Corrosion is hard to detect in organics since most are non-conducting & traditional methods require electrons to reach a distant electrode. Our solution: fluorophores that diffuse & come in contact with solvated products of the corrosion reaction: metal ions. We identified Phen Green SK (PGSK) – a dye developed for metal sensing in cells that undergoes fluorescence turn-off w/ metal ions, termed chelation enhanced quenching (CHEQ). We screened PGSK sensing capabilities with soluble metals. Then we applied PGSK to sense & - importantly – QUANTIFY corrosion over time for 1045 steel & Al in ethanol/water mixtures. These solutions were conductive enough to compare to conventional electrode-based & ex situ methods. Remarkably – the fluorescence vs. electrode methods agreed! Same orders of magnitude, same trends - notable given the differences in the experiments w/ applied vs. no potential; direct vs. secondary reporters. This shows fluorescence is a viable method to quantify corrosion & add to the electrochemical toolbox. Additional results showed PGSK works in very challenging environments such as oils. Yet, some open questions remain: we screened a number of dyes (including turn-on dyes) & metals that did NOT have the expected response in slightly different solvents. Developing selectivity of the dyes matter for tracking specific reactions would also be a next direction. This work was motivated by collaborations with Lubrizol & supported by the ACS & NSF. It is featured in a special issue of JES acknowledging the storied history & present exciting electrochemistry research @CWRU -thanks to colleagues Burcu & Rob, along with the rest of the editorial board for letting us contribute! Finally, congrats to the authors who contributed to the manuscript - especially Dr. Lianlian Liu who did an amazing job leading the research. Dr. Zechariah Pfaffenberger, Mark Siegel, and Dr. Anuj Saini also contributed. Please check out the paper!

Photochemical reactions continue to be emerging transformations for the effective generation of target molecules that are difficult to access via ground state chemistry. Whilst small scale reactions are easily accommodated in batch-based systems, the use of continuous flow approaches in combination with reaction automation is the method of choice for scale-up and library synthesis. Learn more in our most recent paper, published in Chemical Communications, which presents a new photochemical CSTR system capable of handling solids in scaled continuous processes. https://hubs.li/Q02DTc-g0 #flowchemistry Megan Smyth, Tom Moody, Scott Wharry, Antonella Ilenia Alfano