#HighEntropy

3/6 In such things one usually speaks about the research he has done/published recently or is about to publish... but I decided to speak about #HighEntropy halide #perovskites and #mechanochemistry having basically no results (or only very very preliminary). Just sharing a few ideas... And that

Mechanochemical Route to High-Entropy Three-Dimensional Halide Perovskites High-entropy alloying has been demonstrated as a powerful approach to obtaining materials with exceptional structural and functional properties. The presence of several atomic species in the same crystallographic site alters short-range order compared to nonalloyed phases and results in different mechanical, chemical, and electronic behavior with emergent features. While the synthesis of high-entropy alloys (HEAs) is established in metallurgy, their formation as halide perovskites has been so far limited by synthetic bottlenecks, including different solubilities of the binary salt precursors and the complexity of crystallization pathways in solution. Herein, we report a solvent-free mechanochemical synthesis route for high-entropy double perovskites, yielding simultaneous near-stoichiometric alloying at two and three crystal sublattices. Detailed structural characterization reveals the atomic mechanisms involved in the formation of the HEAs through asymmetric ion-exchange rates from parent nonalloyed perovskites, as well as the formation of inorganic layered nanoheterostructures. Strong nonlinear behavior is observed in the optical properties (bandgap bowing), leading to full visible-range light absorption for the chloride perovskites. Theoretical calculations at the density functional theory provide a framework for the process, shedding light into the electronic structure of the complex alloys. As a proof of concept, the alloys are implemented in a standard electrochemical cell fitted with a quartz window for photoelectrochemical oxygen evolution testing, showing a clear photocatalytic response.

New #MiMpaper! In collaboration with colleagues from @iitalk.bsky.social and @icmoluv.bsky.social, which always makes things better 😊. #HighEntropy #Perovskites #Mechanochemistry #MULTIMAT
Mechanochemical Route to High-Entropy Three-Dimensional Halide Perovskites pubs.acs.org/doi/10.1021/...

⚡High-entropy MoS₂ (W, V, Nb, Ta, Ru) via modular in situ + post-doping doubles microwave absorption to 7.65 GHz, preserving 1T phase.
🔍 Explore: doi.org/10.26599/JAC...

#MicrowaveAbsorption #HighEntropy #MoS2 #MaterialsInnovation #SciOpen #TUP @tsinghuauniversity.bsky.social

Emergent B2 chemical orderings in the AlTiVNb and AlTiCrMo refractory high-entropy superalloys studied via first-principles theory and atomistic modelling - IOPscience Emergent B2 chemical orderings in the AlTiVNb and AlTiCrMo refractory high-entropy superalloys studied via first-principles theory and atomistic modelling, Woodgate, Christopher D, Naguszewski, Hubert...

Thrilled to share my latest #research #article, published today in Journal of Physics: Materials

doi.org/10.1088/2515...

We model the #thermodynamics, #phase #stability, and #properties of two #refractory #HighEntropy #superalloys. Check it out!

@ioppublishing.bsky.social

Resiliency, morphology, and entropic transformations in high-entropy oxide nanoribbons We present the successful synthesis and characterization of a one-dimensional high-entropy oxide (1D-HEO) exhibiting nanoribbon morphology. These 1D-HEO nanoribbons exhibit high structural stability a...

Discovery of a new pathway to develop highly stable #highentropy materials.

a collaborative study led at UIC, with a team spanning mech eng, chem, phys, material science and in collaboration w/ Stockholm University, U of W, and ANL.

Enjoy! #ScienceMagazine

@science.org
@uic-chemistry.bsky.social

🔬 Excited to share my first publication in Advanced Science!

📖 "Improving CO Oxidation Catalysis Over High Entropy Spinels by Increasing Disorder"

🌍 Unlocking stable, abundant alternatives to platinum-group catalysts!

🔗 Read more: doi.org/10.1002/advs...

#Catalysis #MaterialsScience #HighEntropy

Multifunctional high-entropy materials Nature Reviews Materials - High-entropy materials leverage phase stabilization through mixing several elements and are primarily known for their mechanical strength and high toughness. This Review...

Multifunctional High-Entropy Materials
Here is the free-to-read link:
rdcu.be/dVSzn

#highentropy #metals #alloys #metallurgy #artificial-intelligence #high-entropy-alloys #alloy-design #material #material-science

Looking forward to starting #F24MRS tomorrow! Last Min prep for my talk at Thursday's #SF02 symposium on #highentropy at @materials-mrs.bsky.social Fall 2024.

Boston was looking very seasonal today exploring around town pre-conference, you don't get these colours at home!