Nanoscience #RSCNano’s Post

I am happy to share that a third paper from my master’s work was published today. The highlights of this article include a novel approach: the use of hexadecylpyridium bromide (CPB) to enhance the thermal stability and photoluminesce of CsPbBr3 NPs while preserving its crystalline structure and preventing anion exchange.

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Excited to share that Daniel Wang, a current PhD student in EEL, is presenting his latest work at ECS PRIME 2024 in Honolulu! He'll be discussing the 'Role of Li Electrode Redox Potential and Solid Electrolyte Interphase (SEI) Species on the Coulombic Efficiency of LiFSI-DME and LiFSI-FEC Electrolytes'. Daniel's work explores how upshifting the Li electrode redox potential can help mitigate electrolyte decomposition, with a focus on LiFSI-DME and LiFSI-FEC electrolytes. He uses advanced techniques like in-situ FTIR, NMR, and Raman spectroscopy to uncover the complex relationships between SEI species, Li redox potential, and coulombic efficiency. His findings have the potential to pave the way for more efficient and stable lithium metal batteries. Link to talk abstract: https://lnkd.in/exjfdkZ3

Very pleased to share our newest paper entitled Comparison of the Catalytic Activity of Surface-Immobilized Copper Complexes with Phosphonate Anchoring Groups for Atom Transfer Radical Cyclizations and Additions https://lnkd.in/ee2-nact

🚀 hashtag#Publication_Alert 🌐 I am delighted to share our recent publication in Chemical Science journal: "Direct evidence for ligand-enhanced activity of Cu(I) sites". In this article, we highlighted the strong mediating effect of the ligand sphere and the coordination geometry on the strength and isotopologue selectivity of hydrogen adsorption on the under-coordinated copper(I). In addition, our article has been selected as "Pick of the Week" and is currently part of the themed collections: 2024 ChemSci Pick of the Week Collection and 2024 Chemical Science HOT Article Collection. It is the result of tireless research and collaboration with some incredible minds within the RTG 2721: Hydrogen Isotopes research group. Special thanks to Shabnam Haque who provided high-quality experimental data and Florian Kreuter for his Bonding analysis contribution. Thanks to our co-supervisors: Toshiki Wulf and Jiaye Jin as well as our Supervisors: Prof. Dr. Ralf Tonner-Zech, Prof. Dr. Thomas Heine and Prof. Dr. Knut R. Asmis for their invaluable support, guidance, and motivation. Thanks to Helmholtz-Zentrum Dresden-Rossendorf (HZDR), and the Deutsche Forschungsgemeinschaft (DFG) - German Research Foundation Project ID 443871192 – RTG 2721: Hydrogen Isotopes for providing the funding that made this work possible. 📚 Dive into the paper's contents here: https://lnkd.in/ezfxhxTd #isotopes, #hydrogen #environment #clean #energy #NQEs #Spectroscopy #separation

Ion exchange is an effective method to prepare high-quality LiNiO2. In Leo's recent work, three different methods for tailoring the particle size of single crystals have been investigated. Significantly, a seesaw effect of Ni-Li site point defects and related pillaring agents has been emphasised. To optimize the first-cycle efficiency and battery performance, an optimal balance between diffusivity and structural stability needs to be carefully considered. Check out this recently published work: https://lnkd.in/eFZfXRhA

Our contribution to the Special Issue of Polymer in honor of Prof. Gaetano Guerra is out. How do metal centers influence the activity/stereoselectivity of Salen catalysts in lactide ring-opening polymerization? Go find out at the link below. What a great way to begin 2024!

"Excited to announce the publication of our latest paper, 'Advances in Understanding Tungsten Disulfide Dynamics during the Hydrogen-Evolution Reaction: An Initial Step in Elucidating the Mechanism,' is now published in the prestigious ACS Journal of Physical Chemistry Letters. Our study delves into the world of electrocatalysis, focusing on tungsten disulfide (WS2) as a promising catalyst for the hydrogen-evolution reaction (HER). Through a comprehensive investigation utilizing advanced analytical techniques such as SEM, TEM, EDS, XRD, XAS, EPR, and in situ Raman spectroscopy, we uncovered intriguing changes in the WS2 particle structure during HER. Our findings, including the formation of novel W species and signs of W–O bond formation, provide valuable insights into the mechanisms of WS2 under HER conditions, showcasing its catalytic performance and durability. Read the full article here: [https://lnkd.in/dH8Ua3q3]"

High voltage cathodes like lithium manganse-rich layered oxides (LMR) deal with several challenges. Besides the well-known electrode crosstalk (= metal dissolution from cathode and deposition on anode) there is also an inverse electrode crosstalk, i.e., surface layer (=solid electrolyte interphase; SEI) dissolution from anode and deposition on cathode, which relevantly affects the cathode electrolyte interphase (CEI). In the recent paper by Anindityo (Tio) Arifiadi from MEET Battery Research Center and International Graduate School BACCARA the inverse crosstalk is assesed according to its relevance. Though, amount of inverse crosstalk is higher for Li anodes compared to "SEI-free" LTO anodes, but capacity fading is more relevantly affected by other factors: https://lnkd.in/e-YFPCf7 Thanks to the authors Feleke Demelash, Niklas M. Abke, Tobias Brake, Marc Vahnstiege, Lennart Alsheimer, Simon Wiemers-Meyer and Martin Winter.

Investigating the effects of two types of diammonium cations (OBE and EDBE), cation interactions control the structure of layered perovskites, and elucidating that the processing temperature of Sn-based perovskites significantly affects the crystal structure and optical properties of thin films. by Professor Maria Antonietta Loi et al. https://lnkd.in/eaRHvuxH https://lnkd.in/eeUStteS #perovskite #crystal #ammonium