Upcoming webinars from The Electrochemical Society

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The Electrochemical Society (ECS) webinar series

Graphene and its supercapacitor applications 10 March 2021; 6 pm GMT / 1 pm EST  Graphene is the ultimate two-dimensional material consisting of a single layer of sp2 hybridized carbon. A facile, inexpensive, solid-state method for generating, patterning and electronic tuning of laser-converted graphene will be discussed. Briefly, graphite can be converted into graphene oxide (GO) sheets, which readily disperse in water, and can then be reduced by various methods. Due to its unique ability to be solution-processed and patterned, GO can be laser-reduced to graphene directly onto various substrates without masks, templates, post-processing or transfer techniques. In this webinar, Dr Richard Kaner will discuss the work that paves the way for the fabrication of inexpensive electrochemical energy-storage devices.

Dynamic light scattering in electrochemical energy conversion systems 16 March 2021; 5 pm GMT / 1 pm EDT  Dynamic light scattering (DLS) is a common technique to determine size and zeta potential of colloidal particles in a suspension. It is used to determine relevant properties of the catalyst inks used to fabricate electrodes of electrochemical energy conversion devices, such as fuel cells and electrolysers. These properties include the surface charge of catalyst and catalyst supports, ink stability, catalyst-ionomer interaction. In this webinar, Prof. Iryna Zenyuk and Prantik Saha discuss how DLS helps prepare catalyst inks with the high electrochemical performance required for the optimal design of these systems, and thus, helps build a zero-carbon emissions society.

Chemo-mechanics of preventing dendrite penetration in Li metal cells 24 March 2021; 5 pm GMT / 1 pm EDT  In this talk, Dr Stephen J Harris will take explicit account of the inevitable surface roughness of Li and separators and show how this leads to accurate predictions for the pressure dependence of the critical current density. We also introduce a concept, new to the battery field, that offers to explain how a material as soft as Li metal can penetrate hard ceramic solid electrolytes. This idea comes from an analogous process in a different field of material science, where the penetration problem has already been solved. We suggest that the same solution can eliminate dendrite penetration through solid electrolytes in all-solid-state batteries. The mechanical properties of Li have recently received considerable attention because of their importance in understanding and enabling Li metal batteries.

These webinars are sponsored by:

Catch up with our previous webinars from The Electrochemical Society

Next-generation batteries for electric vehicles and stationary storage Microbiologically influenced corrosion: tips, myths, skills Two-dimensional materials for scalable modular electronic pathogen sensors Oxygen and carbon monoxide electrocatalysis for renewable-energy conversion Durable perovskite solar cells Without sound and fury, signifying something: acoustics and batteries Electrochemistry in rechargeable lithium metal batteries Proton-coupled electron transfer in electrochemistry Bioelectrocatalysis for electrosynthesis Opportunities and fundamental challenges for anion exchange membrane fuel cells

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