{ "152583-21913954": { "datetime_modified":"20260921T160731", "datetime_start":"20261022T133000", "datetime_end":"20261022T143000", "has_end_time":1, "date_start":"2026-10-22", "date_end":"2026-10-22", "time_start":"13:30:00", "time_end":"14:30:00", "time_zone":"America\/Detroit", "event_title":"ChE SEMINAR: Ryan Hayward, *University of Colorado*", "occurrence_title":"", "combined_title":"ChE SEMINAR: Ryan Hayward, *University of Colorado*: *Design and characterization of single ion conducting elastomeric networks*", "event_subtitle":"*Design and characterization of single ion conducting elastomeric networks*", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"A reception with light refreshments will be held in the B10 lobby before each seminar from 1-1:30 p.m.\n\n*Abstract:*\nOur group has recently studied heterojunctions between oppositely charged \u2018ionoelastomers\u2019, i.e., low glass-transition polyelectrolyte networks, for applications including inherently stretchable and transparent logic elements, low-voltage electroadhesives, and electromechanical transducers. We have studied several classes of networks containing different polymer backbone, pendent group, and crosslinker structure and sought to better understand how chemical and structural parameters of the networks influence their device performance. In one example, we have introduced high mobility silicone backbones that lower the glass transition temperature and therefore improve conductivity of the materials. Remarkably, heterojunctions at the interface of polyanionic and polycationic layers of such networks exhibit strongly temperature-dependent rectification, providing insight into the critical role of interfacial polymer dynamics in the operation of these devices. In another example, we have introduced a modular route to prepare polyanionic networks that relies on Sulfur (VI) fluoride exchange (SuFEx) \u2018click\u2019 chemistry, enabling a systematic study of how ionic conductivity depends on the length of short perfluorinated pendent groups. A non-monotonic dependence is identified due to the competing effects of ion association and aggregation. Finally, we have studied a variety of different crosslinking species as a route to tune conductivity, stiffness, and toughness of these materials. \n\n*Bio:*\nRyan Hayward is the Department Chair and Hudson Moore Endowed Professor in Chemical and Biological Engineering at the University of Colorado Boulder. He received degrees in Chemical Engineering from Princeton University (B.S.E, 1999) and the University of California, Santa Barbara (Ph.D., 2004), and was a post-doctoral fellow in Engineering and Applied Sciences at Harvard University from 2004-2005 prior to joining the faculty of Polymer Science and Engineering at UMass Amherst in 2006, where he remained until relocating to the University of Colorado in 2020. His group\u2019s work is focused on responsive materials and self-assembly, including the development of new approaches to optically- and electrically addressable polymers. Ryan received the APS John H. Dillon Medal (2014), the Journal of Polymer Science Innovation Award (2013), the ACS Division of Colloid and Surface Chemistry Unilever Award (2011) and was elected a Fellow of the APS in 2018. He was an Associate Editor for ACS Macro Letters from 2013 \u2013 2022 and served in the chair line of the Division of Polymer Physics of the APS from 2021-2025.", "occurrence_notes":null, "guid":"152583-21913954@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/152583", "building_id":"null", "building_name":"North Campus Research Complex Building 10", "campus_maps_id":"615", "room":"Auditorium", "location_name":"North Campus Research Complex Building 10", "has_livestream":0, "cost":"", "tags":["chemical engineering","seminar","graduate students","Free"], "website":"https:\/\/www.linkedin.com\/company\/umichche\/?viewAsMember=true", "sponsors":[ { "group_name":"Chemical Engineering", "group_id":"3218", "website":"http:\/\/che.engin.umich.edu\/" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/09\/event_152583_original-1.png", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2026\/09\/event_152583_original-1.png", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/09\/event_152583_original-1.png", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2026\/09\/event_152583_original-1.png", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/09\/event_152583_original-1.png", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/group_thumb\/media\/attachments\/2026\/09\/event_152583_original-1.png", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/group_thumb_square\/media\/attachments\/2026\/09\/event_152583_original-1.png", "group_large":"https:\/\/events.umich.edu\/media\/cache\/group_large\/media\/attachments\/2026\/09\/event_152583_original-1.png", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/group_large_lightbox\/media\/attachments\/2026\/09\/event_152583_original-1.png", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/event_large_crop\/media\/attachments\/2026\/09\/event_152583_original-1.png", "event_list":"https:\/\/events.umich.edu\/media\/cache\/event_list\/media\/attachments\/2026\/09\/event_152583_original-1.png", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/09\/event_152583_original-1.png", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/09\/event_152583_original-1.png", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/event_grid_2x\/media\/attachments\/2026\/09\/event_152583_original-1.png", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/event_feature_large\/media\/attachments\/2026\/09\/event_152583_original-1.png", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2026\/09\/event_152583_original-1.png" }, "occurrence_count":1, "first_occurrence":21913954 } , "152584-21913955": { "datetime_modified":"20260921T161317", "datetime_start":"20261029T133000", "datetime_end":"20261029T143000", "has_end_time":1, "date_start":"2026-10-29", "date_end":"2026-10-29", "time_start":"13:30:00", "time_end":"14:30:00", "time_zone":"America\/Detroit", "event_title":"ChE SEMINAR: Umit Ozkan, *Ohio State University*", "occurrence_title":"", "combined_title":"ChE SEMINAR: Umit Ozkan, *Ohio State University*: *Tunable bridged poly-silsesquixane materials as catalyst scaffolds for hydrogenation\/hydrogenolysis reactions*", "event_subtitle":"*Tunable bridged poly-silsesquixane materials as catalyst scaffolds for hydrogenation\/hydrogenolysis reactions*", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"A reception with light refreshments will be held in the B10 lobby before each seminar from 1-1:30 p.m.\n\n*Abstract:*\nBridged polysilsesquioxane (BPS) is a hybrid organosilica material combining the mechanical strength of inorganic silica with the tunable chemical and structural properties of organic bridging groups. While BPS materials are widely explored as adsorbents, their application in catalysis remains limited. Here, we investigate BPS as a palladium (Pd) catalyst support for the aqueous-phase hydrogenation of lignocellulosic bio-oil aromatic model compounds and the hydrogenolysis of trichloroethylene (TCE), a toxic groundwater pollutant. Leveraging BPS tunability, we synthesized hydrophobic Pd supports: aryl-bridged polysilsesquioxane (ABPS) and its swellable counterpart, S-ABPS (also referred as swellable organically modified silica (SOMS)). ABPS-supported Pd catalysts exhibited remarkable activity for phenol hydrogenation and TCE hydrodechlorination, significantly outperforming commercial Pd catalysts. Furthermore, while state-of-the-art Pd catalysts suffer from slow kinetics at low temperatures\/concentrations and poisoning by sulfur and chlorine species (SO42-, HS-, Cl-), the S-ABPS catalyst demonstrated exceptional deactivation resistance. We also investigated the effect of support\u2019s organic content, aromaticity, and basicity on catalyst properties, activity, and selectivity. Using in situ and ex situ spectroscopy, X-ray absorption, and thermogravimetric analysis, we have established structure-property-activity relationships. Ultimately, this work demonstrates that ABPS is a highly promising support for noble metal catalysts, offering superior metal dispersion, poisoning resistance, and tunable aqueous-phase activity and selectivity.\n\n*Bio:*\nUmit S. Ozkan is a Distinguished University Professor and Chair of the Chemical and Biomolecular Engineering Department at The Ohio State University, where she has served since 1985. A renowned expert in thermal and electro-catalysis, she has authored over 300 publications, holds eight patents, and has delivered hundreds of invited lectures worldwide. She is a member of the National Academy of Engineering and a fellow of AAAS, AIChE, and ACS. Her leadership spans numerous professional organizations including AICHE, ACS and North American Catalysis Society. She served or continues to serve on the Editorial Boards of Catalysis Today, Journal of Molecular Catalysis, Catalysis Letters, Topics in Catalysis, The Royal Society of Chemistry Catalysis Book Series, Applied Catalysis B, ACS Applied Energy Materials, Catalysis Reviews in Science and Engineering, ACS Catalysis, Journal of Catalysis, and Nature Sustainability. \n\nProfessor Ozkan is the recipient of many honors and awards among which are North American Catalysis Society Distinguished Service in the Advancement of Catalysis Award (2027), the American Institute of Chemical Engineers Margaret Rousseau Pioneer Life Time Achievement Award (2024), American Chemical Society George Olah Award (2024), North American Catalysis Society Burwell Lectureship Award (2023), ACS Henry H. Storch Award (2017), ACS Energy and Fuels Distinguished Researcher Award (2012), John van Geuns Lectureship Award at the Van't Hoff Institute at the University of Amsterdam (2010), Iowa State University, Professional Achievement Citation in Engineering (2010), AIChE Mentorship Excellence Award (2009), Fulbright Senior Scholar Award (2007), the Society of Women Engineers Achievement Award (2002). In 2013, she was honored by a special volume of Topics in Catalysis. The volume included contributions from 35 different research groups from 12 different countries. In 2019, she was again honored, this time by a special volume of Catalysis Today.\n\nIn her research group, Dr. Ozkan has advised and mentored over 100 graduate students, post-doctoral researchers and honors students.", "occurrence_notes":null, "guid":"152584-21913955@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/152584", "building_id":"null", "building_name":"North Campus Research Complex Building 10", "campus_maps_id":"615", "room":"Auditorium", "location_name":"North Campus Research Complex Building 10", "has_livestream":0, "cost":"", "tags":["seminar","graduate students","Free","chemical engineering"], "website":"http:\/\/che.engin.umich.edu\/", "sponsors":[ { "group_name":"Chemical Engineering", "group_id":"3218", "website":"http:\/\/che.engin.umich.edu\/" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/09\/event_152584_original-1.png", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2026\/09\/event_152584_original-1.png", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/09\/event_152584_original-1.png", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2026\/09\/event_152584_original-1.png", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/09\/event_152584_original-1.png", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/group_thumb\/media\/attachments\/2026\/09\/event_152584_original-1.png", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/group_thumb_square\/media\/attachments\/2026\/09\/event_152584_original-1.png", "group_large":"https:\/\/events.umich.edu\/media\/cache\/group_large\/media\/attachments\/2026\/09\/event_152584_original-1.png", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/group_large_lightbox\/media\/attachments\/2026\/09\/event_152584_original-1.png", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/event_large_crop\/media\/attachments\/2026\/09\/event_152584_original-1.png", "event_list":"https:\/\/events.umich.edu\/media\/cache\/event_list\/media\/attachments\/2026\/09\/event_152584_original-1.png", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/09\/event_152584_original-1.png", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/09\/event_152584_original-1.png", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/event_grid_2x\/media\/attachments\/2026\/09\/event_152584_original-1.png", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/event_feature_large\/media\/attachments\/2026\/09\/event_152584_original-1.png", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2026\/09\/event_152584_original-1.png" }, "occurrence_count":1, "first_occurrence":21913955 } }