Nathan Szymanski Profile
Nathan Szymanski

@NJSzymanski

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Postdoctoral researcher at @UMNCSE in the group of @ChrisJBartel working on computational materials design. Incoming professor at @UCLA Materials Science.

Joined September 2013
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@NJSzymanski
Nathan Szymanski
3 months
New paper out in @ACSPublications introducing some topological descriptors of electron density for inorganic materials! We hope these can supplement existing descriptors like Bader charges and serve as compact inputs for machine learning.
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pubs.acs.org
Descriptors play an important role in data-driven materials design. While most descriptors of crystalline materials emphasize structure and composition, they often neglect the electron density─a...
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@NJSzymanski
Nathan Szymanski
1 year
Some new work from Shilong Wang in the @cedergroup on a method for efficient and acid-free extraction of Li from spodumene, a common mineral used in battery manufacturing - happy to be a part of this!.
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pubs.acs.org
With increasing battery demand comes a need for diversified Li sources beyond brines. Among all Li-bearing minerals, spodumene is most often used for its high Li content and natural abundance....
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@NJSzymanski
Nathan Szymanski
1 year
And this proposed threshold was calibrated using 37 different reaction pathways targeting alkali metal oxides - more work is needed to confirm how this might vary in different chemistries!.
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@NJSzymanski
Nathan Szymanski
1 year
The caveat here is that reliable predictions can only be made when the driving force to form one product is much larger (we propose a threshold of ~60 meV/atom) than any other competing driving forces
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@NJSzymanski
Nathan Szymanski
1 year
Our latest work on understanding solid-state synthesis is out now in @ScienceAdvances where we use in-situ XRD to show that initial reaction products can (*sometimes*) be predicted using DFT-computed thermochemical data!
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science.org
In situ characterization reveals the conditions where reaction outcomes can be predicted using thermodynamic calculations.
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@NJSzymanski
Nathan Szymanski
1 year
RT @yuxing_fei: 🚨 Preprint Alert 🚨. How to manage experiment workflows in an autonomous lab just like managing computational workflows?. We….
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@NJSzymanski
Nathan Szymanski
1 year
New perspective out in @ACSEnergyLett where @ChrisJBartel and I share our thoughts on how computations have and will continue to play a role in guiding the synthesis of battery materials. Check it out!
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pubs.acs.org
Materials synthesis is a critical step in the development of energy storage technologies, from the first synthesis of newly predicted materials to the optimization of key properties for established...
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@NJSzymanski
Nathan Szymanski
2 years
RT @YanHelenZENG: Check out our latest work on Selective formation of metastable polymorphs in solid-state synthesis | Science Advances htt….
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science.org
Metastable polymorphs with low surface energy are made accessible by reactions with large thermodynamic driving force.
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@NJSzymanski
Nathan Szymanski
2 years
Here's a video of the A-lab in action, courtesy of @BerkeleyLab
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@NJSzymanski
Nathan Szymanski
2 years
Excited to share our work in @Nature on the A-Lab, an AI-driven robotic platform that automates materials synthesis. It discovered 41 new compounds in 17 days of closed-loop experiments! Thanks to @cedergroup and @YanHelenZENG for leading this effort!.
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@NJSzymanski
Nathan Szymanski
2 years
Our method to automate the optimization of solid-state synthesis is out now in @NatureComms! It uses DFT data but also learns from experiments to find the best precursors for a given material. We hope this can help guide future autonomous platforms 🤖 😃.
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@NJSzymanski
Nathan Szymanski
2 years
Short-range order plays an important role in the performance of DRX cathodes 🔋 check out our latest work in @ChemMater where we show how pair distribution function data can be used to study this property!. Thanks to @Bin_Ouyang_CMS and @ChrisJBartel.
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pubs.acs.org
Pair distribution function (PDF) analysis is a powerful technique for the characterization of short-range order (SRO) in disordered materials. Accurate interpretation of experimental PDF data is...
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@NJSzymanski
Nathan Szymanski
2 years
Happy to be a part of this work! Check it out if you're interested in using neural networks to analyze data from XRD, NMR, or Raman spectroscopy 🔬.
@jschuetzke
Jan Schuetzke
2 years
Proud to present our recent work on the evaluation of neural network architectures for classifying spectroscopic data. The article is available in @Nature_NPJ.
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@NJSzymanski
Nathan Szymanski
2 years
Excited to share our recent work in @Nature_NPJ, where we show that machine learning can be used to "drive" XRD measurements and identify phases in real time!. Thanks to @ChrisJBartel @YanHelenZENG @delmouha.
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nature.com
npj Computational Materials - Adaptively driven X-ray diffraction guided by machine learning for autonomous phase identification
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@NJSzymanski
Nathan Szymanski
3 years
For those interested in synthesis science and DRX cathodes, check out our latest article in @ChemMater showing several factors that govern fluorination. Big thanks to all the great collaborators! @YanHelenZENG @cedergroup @ChrisJBartel @ClementGroupSB .
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pubs.acs.org
We have designed and tested several synthesis routes targeting a highly fluorinated disordered rocksalt (DRX) cathode, Li1.2Mn0.4Ti0.4O1.6F0.4, with each route rationalized by thermochemical analys...
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@NJSzymanski
Nathan Szymanski
3 years
RT @jschuetzke: We present a synthetic dataset generator to benchmark machine learning models on spectroscopic data. Spoiler: No neural ne….
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@NJSzymanski
Nathan Szymanski
4 years
Happy to share our recent work in @ChemMater on automating phase identification for XRD spectra with a probabilistic CNN!. Thanks to @cedergroup @ChrisJBartel . Code: Paper:
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