Description:

Webinar

Persistent Micelle Templates for Single-Variable Series of Porous Nanomaterials

Prof. Morgan Stefik

Department of Chemistry and Biochemistry

Univ. of South Carolina

Thursday, February 16,  Webinar at 6:30 PM Pacific time

Abstract:

Block polymer structure‐directing agents (SDA) enable the production of porous nanoscale materials by controlling the arrangement of material precursors. The subsequent removal of the polymer thus yields porous nanomaterials that are useful for a wide range of applications including energy storage and catalysis. The iteration of most such strategies however leads to complex sequences of nanomaterials that change multiple spatial variables at a time, including morphology, pore size, and wall thickness. In contrast, persistent micelle templates (PMT) are based upon the kinetic entrapment of polymer chains to enable sample adjustments with constant morphology (isomorphic) and constant pore size (ref.1). Such series of nanomaterials with a single spatial variable are well poised to clarify cause-and-effect for nanoscale phenomena. The PMT approach has enabled wide spanning feature sizes over two orders of magnitude with 2 Å precision adjustments between samples. The PMT method is simple to validate with diffraction models and is feasible in any laboratory with minimal equipment. Finally, recent energy device research enabled by PMT is noted where tailored nanomaterials provided a unique perspective to unravel complex battery behaviors (ref. 2).

References

1)    Stefik, M., Single-Variable Porous Nanomaterial Series from Polymer Structure Directing Agents. Journal of Materials Research 2022, 37, 25-42.

Open Access: https://dx.doi.org/10.1557/s43578-021-00421-0

2)    van den Bergh, W.; Stefik, M., Understanding Rapid Intercalation Materials One Parameter at a Time. Advanced Functional Materials 2022, 32, 2204126.

Open Access: https://dx.doi.org/10.1002/adfm.202204126

Speaker Background & Research Interests:

Registration deadline: Wednesday, February 15, 1:00 PM.

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Webinar Timing: 6:30 PM.

(Zoom meeting room will open earlier)

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LOCATION:

Anywhere you want, or anywhere you are busy socially distancing, sheltering in place, working, or waiting it all out. Good luck!