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X-WR-CALDESC:Events for Department of Chemical Engineering
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DTSTART;TZID=America/New_York:20220202T120000
DTEND;TZID=America/New_York:20220202T130000
DTSTAMP:20260421T003433
CREATED:20220121T000612Z
LAST-MODIFIED:20220121T012456Z
UID:3911-1643803200-1643806800@che.northeastern.edu
SUMMARY:Platinum: Not as Noble as We Thought
DESCRIPTION:ChE Seminar Series Presents: \nArthur Shih\, Ph.D. \nLeiden Institute of Chemistry\, Leiden University\, The Netherlands \nAbstract \nUnderstanding of catalysis at a fundamental level has historically lagged behind its commercial counterpart with the Haber-Bosch ammonia synthesis process and catalytic converters as pertinent examples [1]. This historical paradigm\, however\, is shifting with the advancement of computing prowess and collaboration. We will discuss how experiments and density functional theory (DFT) computations led us to discover that platinum\, a noble metal that is frequently utilized as a catalyst in the cathode of fuel cells\, restructures when the voltage is held constant between fuel-cell relevant voltages of 0.6 and 1.0 V on a reversible hydrogen electrode scale (VRHE) [2]. \nAn anomalous reduction feature at ~0.53 VRHE was observed on a Pt(111) single crystal in Ar-saturated HClO4 after holding at the fuel-cell relevant voltage of 0.8 VRHE (Figure 1). Decades of research has established that Pt(111) in HClO4 oxidizes H2O to adsorbed *OH between 0.6 and 1.0 VRHE [3-5] and this current model is unable to explain the anomalous feature. Using a combination of computational\, electrochemical\, spectroscopic\, and imaging probes\, we find that holding the voltage between 0.6 and 1.0 VRHE results in a mildly-roughened Pt(111) surface [6]\, presumably due to an *OH-induced release of surface stress. The catalytic performance of this mildly roughened Pt(111) was tested for the oxygen reduction reaction (ORR) and carbon monoxide oxidation (CO Oxidation) where it was found that the ORR rate is seemingly structure insensitive and CO Oxidation rate is surprisingly structure sensitive [7]. Overall\, this discovery demonstrates the importance of understanding how dynamic and steady operating conditions influence the electrode-electrolyte interface – critical for predicting\, designing\, and improving current commercial technologies and opening doors for the development of future technologies. \nBio \nArthur Shih’s research interests are in catalysis for the sustainable production of chemicals and energy\, with emphasis on utilizing reaction kinetics and spectroscopy to understand catalytic mechanisms. He obtained his bachelor’s in Chemical Engineering from the University of Michigan during which he developed computer-based resources with H. Scott Fogler for his textbook “Elements of Chemical Reaction Engineering” and explored several research areas ranging from cancer detection to polymers to CO2 capture. He then earned his Ph.D.\, also in Chemical Engineering\, from Purdue University with Fabio H. Ribeiro where he investigated the thermal-catalytic reduction of toxic nitrogen oxides in catalytic converters. Inspired by the growth and prowess of computational chemistry coupled with a desire to capitalize on cheap renewable electricity for the environment\, he then moved to Leiden University and completed a postdoc in Chemistry with Marc Koper on the electrocatalysis of water splitting to H2 and O2 over well-defined single crystal electrodes. During that time he collaborated with several computational chemists around the world. He is currently a postdoctoral scholar in Materials Science and Engineering at Northwestern University with Sossina Haile working on nitride catalysts for high temperature electrochemical ammonia synthesis. \nIf unable to attend in person\, please contact a.ramsey@northeastern.edu for the link.
URL:https://che.northeastern.edu/event/platinum-not-as-noble-as-we-thought/
LOCATION:024 East Village\, 360 Huntington Ave\, Boston\, MA\, 02115\, United States
GEO:42.3396156;-71.0886534
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END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220209T120000
DTEND;TZID=America/New_York:20220209T130000
DTSTAMP:20260421T003433
CREATED:20220207T195452Z
LAST-MODIFIED:20220207T195452Z
UID:3924-1644408000-1644411600@che.northeastern.edu
SUMMARY:Capture and Conversion of CO2 – Towards CO2 Recycling
DESCRIPTION:ChE Seminar Series Presents: \nJuliana Carnerio\, Ph.D \nPostdoctoral Research Fellow \nSchool of Chemical Engineering & Biomolecular Engineering\, Georgia Institute of Technology \nAbstract: \nOur current global fossil-based economy produces significant environmental\, economic\, and social challenges. Such complex challenges are the defining issues of our time\, pushing society toward stepwise decarbonization of our energy and consumption economy. Ideally\, the aim is a more just and reliable economy\, with minimal social and environmental burdens and the redistribution of economic and environmental benefits. To this end\, a circular carbon economy – which integrates energy\, chemical\, and waste management sectors – offers an opportunity to rethink our linear model. With the CO2 recycling system playing a central role in this proposed model\, the scientific community responds with efforts in R&D to create a suite of CO2 mining and utilization technologies. \nIn the first part of my talk\, I will tackle the electrochemical conversion of CO2 at an elevated temperature regime\, using Reversible Solid Oxide Electrochemical Cells (RSOECs). The optimization of the performance of the oxygen and fuel electrodes in these cells has been hindered by the limited understanding of the factors that govern the O2 and CO2 chemistries. As such\, I will discuss our efforts toward developing design principles for the identification of optimal electrocatalysts for these electrode reactions. We used a combination of theoretical calculations\, controlled synthesis\, advanced characterization\, and testing to show that the binding energy of atomic oxygen can be used as an activity descriptor for these processes. It was found that a compromise in the oxophilicity of the electrocatalyst was required to achieve optimal activity and stability. Our theory-guided design principles successfully identified: (i) Cobalt-doped La2NiO4 as a highly active material for O2 electrocatalysis\, and (ii) Fe\, the most oxophilic metal tested\, as a highly active metal for CO2 electrochemical reduction. However\, Fe exhibited unstable electrochemical behaviors induced by the oxidation of the metal under electrochemical CO2 reduction conditions in SOECs. This phenomenon ratifies the importance of the strength of oxygen binding on the electrocatalyst surface as a descriptor of activity and stability for CO2 electrolysis in SOECs. \nIn the second part of my talk\, I will highlight our work on adsorptive materials for the direct air capture (DAC) of atmospheric CO2. We explore the role of atmospheric humidity as an essential stability parameter for DAC processes employing solid amine adsorbents. We demonstrate this by using prototypical class 1 aminopolymer-type solid sorbents that allow for flexibility in the support use. Sorbent deactivation was investigated by means of several complementary factors\, including (i) the relative loss in amine efficiency determined via time-course CO2 sorption\, (ii) elemental analysis\, and (iii) in situ IR spectroscopy to obtain an understanding of the role of water on the sorbent degradation process. Our findings provide important insights into the relevant parameters that impact the effective design of DAC sorbents and processes for different climatic environments\, allowing tailoring of sorbent formulations to overcome the challenges associated with highly varied conditions in which a DAC process must operate. \nBio: \nDr. Juliana Carneiro is a postdoctoral research fellow in the School of Chemical Engineering & Biomolecular Engineering at the Georgia Institute of Technology with Professor Christopher W Jones. She received her Ph.D. in Chemical Engineering from Wayne State University in 2019 under the supervision of Prof. Eranda Nikolla. Her research interests lie in developing active\, selective\, and stable electrocatalysis for electrochemical conversion and separation processes\, including the electrochemical recycling/upcycling of post-consumer plastics\, the capture and storage of CO2 from oceans\, and the capture and conversion of atmospheric CO2. She is the recipient of several awards\, including\, but not limited to the 2017-2018 Ralph H. Kummler Award for Distinguished Achievement in Graduate Student Research\, 2018 Women’s Initiatives Committee’s (WIC) AIChE Travel Award\, and the prestigious Student Presentation Awards at the (i) Gordon Research Conference on Catalysis\, (ii) the Michigan Catalysis Society.
URL:https://che.northeastern.edu/event/capture-and-conversion-of-co2-towards-co2-recycling/
LOCATION:024 East Village\, 360 Huntington Ave\, Boston\, MA\, 02115\, United States
GEO:42.3396156;-71.0886534
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END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220216T090000
DTEND;TZID=America/New_York:20220216T100000
DTSTAMP:20260421T003433
CREATED:20220210T013003Z
LAST-MODIFIED:20220210T013003Z
UID:3936-1645002000-1645005600@che.northeastern.edu
SUMMARY:Accelerating the Transition to Carbon Neutrality
DESCRIPTION:ChE Seminar Series Presents: \nMadga Barecka\, Ph.D. \nPost-Doc at University of Cambridge\, Research Centre in Singapore \nAbstract \nTransition to Net Zero 2050 requires immediate and drastic changes in the current manufacturing methods. This transformation is difficult to realize without disrupting the existing industries and putting at risk the delivery of the products that our society relies on. To address this challenge\, I proposed an alternative approach: use of novel\, carbon-neutral technologies such as CO2 electrolysis as a retrofit\, which operates in parallel to an existing chemical plant\, can be installed with a minimum disruption to the ongoing manufacturing activities and leads to a meaningful reduction of the carbon footprint. This technology\, Carbon Capture On-site Recycling\, will be illustrated with examples of several chemical manufacturing processes\, where\, if fully deployed\, it could allow to save annually up to 10 Gt of CO2 emissions by 2050. \nThis work is a part of my broader vision on disrupting the global carbon cycle through both discovery and scaling of circular production methods for chemical\, pharmaceutical and environmental sectors. How to encourage the industry to change and adopt innovative technologies? How to functionally reproduce photosynthesis to deliver carbon neutral chemicals? How to improve the access to medicines for those most exposed to distribution injustice? In my talk\, I will discuss my current and future research that will significantly contribute to answering these questions. \nBio \nDr. Magda H. Barecka is a Post-Doc at University of Cambridge\, Research Centre in Singapore. She is interested in accelerating the adoption of CO2 conversion\, powered by renewable energy\, and the development of economically viable and scalable carbon neutral production methods. Dr. Barecka holds a PhD degree from TU Dortmund University (Germany) and was the first PhD candidate to be awarded the title as a Double Diploma certificated together with Lodz University Technology (Poland). She is a chemical engineer with expertise in process intensification\, retrofitting and design\, developed in academia and private sector. As a part of her PhD thesis\, she developed a methodology supporting implementation of intensified technologies in the chemical manufacturing\, which was transferred to Industry (Processium company\, France/Brazil). After the completion of her PhD\, she joined pharmaceutical/fine chemicals sector in Switzerland and worked on the design of manufacturing lines\, as well as established collaborations with Academia towards the development of algorithms accelerating process development. After this\, she came back to the research sector to deploy her process design experience in the field of carbon capture and utilization. Dr. Barecka is currently working in the intersection of CO2 electrolysis process design\, reaction optimization\, integration with renewable energy sources\, and techno-economic analysis for CO2-based manufacturing methods that can disrupt the carbon cycle. \nPlease contact a.ramsey@northeastern.edu for the remote seminar link.
URL:https://che.northeastern.edu/event/accelerating-the-transition-to-carbon-neutrality/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220223T120000
DTEND;TZID=America/New_York:20220223T130000
DTSTAMP:20260421T003433
CREATED:20220218T231713Z
LAST-MODIFIED:20220218T231713Z
UID:3967-1645617600-1645621200@che.northeastern.edu
SUMMARY:Accelerating Research Along the Path to Commercialization
DESCRIPTION:There are a variety of steps required to transition technologies from the research lab to the marketplace. Each step comes with its own set of questions and challenges. How do you protect your innovation and when is the right time? What is the right path to market? What are the obstacles to get there? What resources are available for researchers and entrepreneurs? \nRepresentatives from Northeastern’s Center for Research Innovation (CRI) will help to answer these questions. The CRI is focused on accelerating the advancement of Northeastern research from lab to market\, maximizing its impact\, for the benefit of society. \nTheir talk will be followed by a Q&A session\, providing ample opportunity for researchers to raise any questions and discuss issues related to intellectual property\, technology commercialization\, and entrepreneurship. \nSpeakers:  \nMark Saulich \nAs Associate Director of Commercialization\, Mark and his team are focused on the commercialization of Northeastern research. Industry engagement is at the core of their efforts\, identifying opportunities to solve real world challenges by leveraging Northeastern innovations. Prior to joining the CRI team\, Mark spent several years working at yet2\, a global open innovation consulting company\, leading technology scouting projects for several Fortune 1000 companies. \nKatie Hemphill \nAs Director of Technology Ventures and Talent Network\, Katie leads the development of a pipeline that encourages the discovery\, formation\, launch and growth of new ventures. In addition to managing the various venture programs at CRI\, she continues to cultivate a team of executive talent who mentor and support spinouts as they launch and scale. Prior to joining CRI\, Katie served as Associate Director of the McCarthy(s) Venture Mentoring Network (VMN) at Northeastern’s Center for Entrepreneurship Education at D’Amore-McKim School of Business. The VMN is a global network of volunteer mentors who give time and talent to early-stage startups based on timely business challenges.
URL:https://che.northeastern.edu/event/accelerating-research-along-the-path-to-commercialization/
LOCATION:024 East Village\, 360 Huntington Ave\, Boston\, MA\, 02115\, United States
GEO:42.3396156;-71.0886534
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END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220224T120000
DTEND;TZID=America/New_York:20220224T133000
DTSTAMP:20260421T003433
CREATED:20220211T021747Z
LAST-MODIFIED:20220211T021747Z
UID:3938-1645704000-1645709400@che.northeastern.edu
SUMMARY:CILS Seminar: Photoacoustics from VisualSonics
DESCRIPTION:Join this seminar to learn about the capabilities of photoacoustics in research ranging from oncology and molecular biology to cardiology and neurobiology. \nThe presentation from VisualSonics will be followed by a student presentation from Kevin Bardon in the Clark Lab\, focusing on where his research will go with this technology. Visit Vevo LAZR-X for more details about the instrument.
URL:https://che.northeastern.edu/event/cils-seminar-photoacoustics-from-visualsonics/
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