报告一：Selective reduction of nitroarenes to anilines via facile transfer hydrogenation reactions catalyzed by reduced graphene oxide supported bimetallic MPd (M: Fe, Co, Ni,) alloy nanoparticles
Prof. ?nder Metin
Atatürk University, Erzurum, TURKEY
主持人：侯仰龙 教授
时  间：7月6日（周三）上午9:00-10:00
地  点：化学楼A717

报告简介：

The reduction of unsaturated functional groups is one of the indispensable tools in organic chemistry for the synthesis of wide array of new and valuable organic compounds [1]. For example, aromatic amines, being important class of compounds used as intermediates in the synthesis of numerous pharmaceutical, and natural products, are often synthesized by the reduction of aromatic nitro (Ar-NO2) compounds via direct hydrogenation. However, the direct hydrogenation reactions have major drawbacks such as the safety risk due to use of H2 gas at high pressure and temperature and the requirement of a specialized equipment. Moreover, the metal catalyzed direct hydrogenation reaction generally lacks the product selectivity in the presence of two distinct reducible groups at the same compound. Therefore, much efforts have been spent on the development of a more facile, selective and green hydrogenation method for the conversion of Ar-NO2 to anilines. In this regard, transfer hydrogenation reactions are studied to one of the best alternative route. Although many molecules such as isopropanol and formic acid have been used in the transfer hydrogenation reactions, these molecules provided slow reduction kinetics and low product selectivity and therefore a hydrogen donor molecule providing a fast and selective transfer hydrogenation reaction is required. Our recent studies have shown that ammonia borane complex (AB, H3NBH3) can be used as a hydrogen reservoir in the transfer hydrogenation reactions [2-4].  I present herein a facile and selective transfer hydrogenation of Ar-NO2 using AB as hydrogen donor and reduced graphene oxide supported MPd (M: Fe, Co, Ni) alloy NPs as catalysts under ambient conditions.
报告人：
?nder Metin is Associate Professor in Department of Chemistry, Faculty of Science, Atatürk University, Erzurum, Turkey since October 2013.  He received Ph. D. from Middle East Technical University, Ankara, TURKEY in 2010. He was Post-Doctoral Research Associate Brown University from 2012-2013 , Turkish Scientific and Research Council Research Fellow,  Technical University of Darmstadt,  Germany and Brown University. Dr. received nemours awards including Turkish Academy of Sciences “The Highly Successful Young Scientists Award” (T?BAGEB?P), 2014, FABED Eser Tumen Outstanding Young Scientist Award, Feyzi Akkaya Science Foundation, 2015.The Scientific and Technological Research Council of Turkey Research Fellow for Studying Abroad, (2009), The 9th of Serhat ?ZYAR ‘Young Scientist of the Year Prize’, Middle East Technical University (2011).

报告二：Tailoring Nanoscale Architectures for Catalysis: From Atomic Structure to Particle Interface
Dr. Huiyuan Zhu
Chemical Sciences Division in Oak Ridge National Laboratory
主持人：侯仰龙 教授
时  间：7月6日（周三）上午10:00-11:00
地  点：化学楼A717

报告简介：

Tailoring nanoscale architectures for highly efficient catalysts requires the precise synthetic control over nanoparticles’ (NPs) parameters. It thus allows for a better understanding of the parameter-property correlation and the optimization rules of advanced NP catalysts.
Electrochemical reactions hold the promise for next-generation sustainable energy conversion process. This includes the well-known electrochemical oxygen reduction reaction (ORR), -the cathode reaction in fuel cells, and the electrochemical CO2 reduction (CO2RR); the latter is an attractive way to deal with the massive industrial CO2 production by using CO2 as a source of valuable chemical with the potential to be converted into fuels, such as CO, CH4, etc. It has been a long-lived quest to identify the highly efficient and cost-effective catalysts for these reactions and it remains a grand challenge to arbitrarily tailor the activity and selectivity of the electrocatalyst. Leveraging the controlled synthesis, we have developed several advanced catalysts for these reactions. Several examples, such as the Pt-based nanowires, non-Pt bimetallic metal NP and earth abundant metal oxides NPs for ORR in acid and alkaline environment, as well as some non-precious metal NP catalysts for efficient CO2RR, will be given in this talk. This talk also briefly covers some other advanced NP catalysts we developed for heterogeneous CO oxidation reaction and electrochemical detection of H2O2.

报告人：

Huiyuan Zhu is currently a Liane B. Russell Fellow from Chemical Sciences Division in Oak Ridge National Laboratory, where she has been since Nov. 2014. Before coming to ORNL, she spent four years in Brown University as both a research assistant and a teaching assistant, and received her PhD in Chemistry in Aug. 2014. She received her B.Sc. in Chemistry from University of Science and Technology of China in 2009.
Her research interest focuses on tailoring nanostructures for catalytic applications, especially for energy storage and conversion purposes. Specifically, she has been looking into the nanoscale architectures and the accompanying electronic effects of the nanomaterials on catalysis and working on generating design rules of the nanocatalysts. She is (co)-author of over twenty-five peer review articles. She has been served as a reviewer for multiple journals, including Journal of the American Chemical Society, ACS Catalysis, Nanoscale, RSC Advances, etc.  

 

报告三：Tuning Nanoparticle Catalysis for Nanomedicine and Energy Applications
Prof. Shouheng Sun
Brown University
主持人：侯仰龙 教授
时  间：7月6日（周三）上午11:00-12:00
地  点：化学楼A717
 
报告简介：

Recent advance in nano-fabrication has made it possible to design and synthesize nanoparticles with nearly precise controls on nanoparticle sizes, shapes, compositions and structures. As a result, their catalytic properties can be tuned to optimization. In this talk, I will use FePt nanoparticles as an example to demonstrate the rationa

报告人：

Professor Sun received his Ph.D. degree in Chemistry from Brown University in 1996. He was a postdoctoral fellow from 1996-1998 and a research staff member from 1998-2004 at the IBM T. J. Watson Research Center. He joined the Chemistry Department of Brown University as a tenured Associate Professor in 2005 and was promoted to full Professor in 2007. He has been the Associate Director of Brown's Institute for Molecular and Nanoscale Innovation since 2008 and is currently an Associate Editor of Nanoscale.
 
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