The Millennium Café runs 10-11am in the 3rd floor Café Commons of the MSC Bldg. Join researchers from across campus for a stellar cup of coffee and two <10 min interdisciplinary talks. All Millennium Café events are free and open to the Penn State community, include coffee and breakfast pastries, and are held in the third floor Café Commons of the Millennium Science Complex at University Park.
Building Better Digital Health: A Data-Driven and Human-Centered Approach
Saeed Abdullah | College of Information Science & Technology
Digital health is inherently data-driven. However, data itself is not adequate. Successful digital health applications require a human-centered approach that transforms data into user experience, empathy, and inclusivity. In this talk, I will focus on how to create digital health applications by integrating a human-centered and data-driven approach. I will also reflect on two ongoing digital health projects: creating supportive financial technologies for marginalized communities and using generative AI to provide personalized health interventions.
The Peculiar Case of Hydrogen Adsorption on Au/TiO2 Catalysts
Bert Chandler | Chemistry & Chemical Engineering
Hydrogen is the simplest molecule in the universe, yet efficient H2 activation, utilization and storage present considerable technological challenges that must be overcome if we are to realize the “green” energy transition. One such phenomenon is “H spillover”, in which H2 is adsorbed (usually on a metal) and then transferred to a metal oxide or carbon surface. Once off the metal, the H becomes highly mobile, scampering freely across the surface. We recently provided the first quantitative measures of H spillover, which leads to the surprising conclusion that spill over is a rare example of entropy-driven adsorption. This has important implications for spillover-based H2 storage materials and H2 utilization / storage reactions such as CO2 hydrogenation.
*** After Café: “Methods for Determining Crystallite & Single Crystal Orientation” Immediately following the Cafe on Tuesday will be next After Café. For many materials the direction (or orientation) of the crystal planes impacts the overall properties. The simplest example is the difference between a single-crystalline and polycrystalline sample. But even polycrystalline samples need not be completely random; some crystalline planes may preferentially align with certain directions. Such a sample is said to be oriented or textured. Orientation influences grain boundaries, mechanical and electrical properties, and more. We will discuss X-ray scattering, electron microscopy and other methods available in the MCL that can be used to determine orientation of crystalline domains across a range of materials.