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세미나가 이번주 목요일(9월 22일) 오후 4시 30분에 개최됩니다.많은 참여 부탁드립니다. ===============================================================================제 목 : High-Performance Receptonics as NanoBio Sensors연 사 : 권오석 박사님(KRIBB)일 시 : 2022년 9월 22일(목) 오후 4시 30분장 소 : 화학관 2층 330226호실================================================================================ High-Performance Receptonics as NanoBio SensorsOh Seok Kwon Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Republic of KoreaOne of the recently emerging topics in biotechnology is natural receptors including G protein-coupled receptors, ligand-gated ion channels, enzyme-linked receptors, and intracellular receptors, owing to their molecular specificity. These receptors, other than intracellular receptors, which are membrane proteins expressed on the cell membrane, can detect extracellular stimuli. Therefore, integration of conducting nanomaterials and natural receptors, as we called Receptonics, allows highly sensitive and selective responses toward target molecules such as cadaverine, geosmin, biocides and so on. Moreover, the receptonics can provide "False-Negative Zero" technologies in the field of virus detection. Based on their unique characteristics in the field of biosensors, the receptonics enable to provide next-generation diagnostics as NanoBio sensors.Keyword: Portable receptonics, graphene, field-effect transistor, NanoBio Sensors
세미나가 다음주 목요일(9월 15일) 오후 4시 30분에 개최됩니다.많은 참여 부탁드립니다. * 이번학기 세미나는 별도 공지가 없는 한 오프라인 세미나로 진행됩니다.===============================================================================제 목 : Introduction of solid-state NMR and its application on polyanion based cathode materials for Li-ion battery연 사 : 이영일 교수(울산대학교)일 시 : 2022년 9월 15일(목) 오후 4시 30분장 소 : 화학관 2층 330226호실================================================================================Introduction of solid-state NMR and its application on polyanion based cathode materials for Li-ion battery Youngil Lee Department of Chemistry, University of Ulsan, Ulsan 44776, Korea.E-mail: nmryil@ulsan.ac.kr The solid-state NMR spectroscopy is a powerful tool to understand the local structure of electrodes for lithium ion battery (LIB), but not well known technique in the field of developing new electrodes due to difficulties of experimental setup and spectral interpretation. Herein, the background of solid-state NMR for observation of quadrupole nuclei will be discussed and its applications for various cathode materials of LIB explained. The substitution effect of anion on polyanion based cathode materials for LIB, such as LiFePO4 and LiFeBO3, will be dealt with their characterizations including solid-state NMR spectroscopy.
특별 세미나가 다음주 수요일(9월 14일) 오전 10시 30분에 개최됩니다.많은 참여 부탁드립니다. (장소는 반도체관 400102호실입니다.)* 이번학기 세미나는 별도 공지가 없는 한 오프라인 세미나로 진행됩니다.===============================================================================제 목 : Application of Density Functional Theory to the Exploration of Reactions연 사 : Gisela A. González-Montiel(Oregon State University)일 시 : 2022년 9월 14일(수) 오전 10시 30분장 소 : 반도체관 1층 400102호================================================================================Gisela A. González-Montiel Title: Application of Density Functional Theory to the Exploration of Reactions Abstract: Density Functional Theory (DFT) is extensively applied for the elucidation of reaction mechanisms and to determine the origins in selectivities of such reactions. As a powerful computational tool, DFT has made considerable advances in organic chemistry to understand the molecular structure and the reaction pathways by estimation of the electronic and geometrical properties of compounds. This talk will highlight research interests in catalyzed organic reactions to determine the mechanism and factors that control the observed selectivities through DFT optimization investigations. In particular, focus will be on the mechanistic studies of an Indium(III)-catalyzed regioselective synthesis of 1-naphthaldehyde derivatives and a light-driven carbene catalysis for the synthesis of aliphatic and alpha-amino ketones. These studies will showcase how DFT is almost imperative for the fundamental understanding of diverse experimental studies. Bio: Gisela A. González-Montiel was born and raised in Portland, Oregon, USA. As a young woman in science and a first-generation student, Gisela graduated from the University of Portland with a B.S. in chemistry in 2016. She then attended graduate school at Oregon State University where she earned her M.S. in chemistry in 2019 under the mentorship of Dr. Sandra Loesgen in the field of fungal natural products. She continued her career at OSU in pursuit of a higher education as a Ph.D. student in the field of computational organic chemistry under the mentorship of Dr. Paul Ha-Yeon Cheong. Her research focuses on computational theory and elucidation of reaction mechanisms in organic chemistry and exploration of origins of selectivity. Gisela is fluent in Spanish and English.
세미나가 이번주 목요일(9월 8일) 오후 4시 30분에 개최됩니다.많은 참여 부탁드립니다. 오프라인 세미나로 진행됩니다.===============================================================================제 목 : B–H Functionalization of o-Carborane연 사 : 이필호 교수(강원대학교)일 시 : 2022년 9월 8일(목) 오후 4시 30분장 소 : 화학관 2층 330226호================================================================================B–H Functionalization of o-CarboranePhil Ho LeeCenter for Catalytic Organic Reactions & Department of ChemistryKangwon National University, Chuncheon, KoreaE-mail: phlee@kangwon.ac.krCarboranes, which are recognized as a type of three-dimensional kindred of benzene, have found a number of applications in boron neutron capture therapy (BNCT) as medication, in organometallic and coordination chemistry as novel ligands, and in supramolecular design and materials as building blocks. However, the distinctive structures of carboranes make their derivatization laborious, which results in a restricted application range. Therefore, it is highly required to develop new synthetic methods for the functionalization of carboranes. In general, cage boron functionalization is much more challenging than cage carbon functionalization because of not only its site-selectivity among ten cage B−H bonds over only three reactive sites in arene C−H activation but also its much lower reactivity of cage B−H over cage C−H bond. Herein, we present transition metal-catalyzed cyclative indenylation, dienylation, allenylation, amidation, acyloxyation, diacetoxylation, acylmethylation, pyrazolization, and triarylation of o-carboranes.R1CO2HR1HArR3R1ZR4R3R5HNR2OHHHHNOR2HR1HHNR2OR1HOAcOAcR1HOR2OHHNMeO2CR1OR2Na= C,other == BBHcatR1HNHAr3Ar2Ar1R2OR1CO2H (CO2Me, H)R2OR1HR2OR1HR2OR1R3OR1HR2OR2ON2NNOR2HReferences1. Baek, Y.; Cheong, K.; Ko, G. H.; Han, G. U.; Han, S. H.; Kim, D.; Lee, K.; Lee, P. H.* J. Am. Chem. Soc. 2020, 142, 9890.2. Baek, Y.; Kim, S.; Son, J.-Y.; Lee, K.; Kim, D.; Lee, P. H.* ACS Catal. 2019, 9, 10418.3. Ko, G. H.; Um, K.; Noh, H. C.; Kim, J. Y.; Jeong, H.; Maeng, C.; Han, S. H.; Han, G. U.; Lee, P. H.* Org. Lett. 2022, 24, 1604.4. Shin, S.; Um, K.; Ko, G. H.; Han, G. U.; Kim, D.; Lee, P. H.* Org. Lett. 2022, 24, 3128.5. Maeng, C.; Ko, G. H.; Yang, H.; Han, S. H.; Han, G. U.; Noh, H. C.; Lee, K.; Kim, D.; Lee, P. H.* Org. Lett. 2022, 24, 3526.6. Han, G. U.; Baek, Y.; Lee, K.; Shin, S.; Noh, H. C.; Lee, P. H.* Org. Lett. 2021, 23, 416.7. Baek, Y.; Cheong, K.; Kim, D.; Lee, P. H.* Org. Lett. 2021, 23, 1188.8. Han, G. U.; Shin, S.; Baek, Y.; Kim, D.; Lee, K.; Kim, J. G.; Lee, P. H.* Org. Lett. 2021, 23, 8622.9. Ham, H.; Shin, S.; Ko, G. H.; Han, S. H.; Han, G. U.; Maeng, C.; Kim, T. H.; Noh, H. C.; Lee, K.; Kim, H.; Yang, H.; Lee, P. H.* J. Org. Chem. 2021, 86, 15153.10. Ko, G. H.; Lee, J. K.; Han, S.; Lee, P. H.* Org. Lett. 2022, 24, 1507.
<플래너리 세미나>- 일시 : 2022년 9월 1일(목) 오후 4시 30분- 연사 : 강태선 회장님(기산과학)- 장소 : 화학관 1층 330118호
세미나가 이번주 목요일(6월 9일) 오후 4시에 개최됩니다. 많은 참여 부탁드립니다.===============================================================================제 목 : Changing Energy, Charging Life연 사 : 최현 박사(LG 에너지 솔루션)일 시 : 2022년 6월 9일(목) 오후 4시장 소 : 화학관 2층 3302226호* 온/오프라인 동시에 진행됩니다.<Webex참여>방번호: 170 974 2739링크: https://skku-ict.webex.com/meet/chem================================================================================Changing Energy, Charging Life LG Energy Solution. 공정기술센터최현 전문위원환경에 대한 관심이 커지면서 전기를 이용한 자동차 개발이 선택이 아닌 필수인 시대에 접어들었습니다. 이에 따라 전기자동차의 핵심 부품인 이차전지 시장도 급격한 성장을 하고 있습니다. 이차전지 시장은 현재 수요 대비 공급이 부족한 시장 주도 성장(Market Driven Growth)이 이루어지고 있습니다. 시장 주도 성장에서는 소재 중심의 개발보다는 현재 소재를 중심으로 품질을 보증할 수 있는 공정 개선이 더 필요하며 이를 통한 수율 향상이 제품의 경쟁력을 높일 수 있는 방법 입니다.LG 에너지솔루션에서는 공정 기술의 중요성을 인지하고 2021년부터 공정기술센터를 출범하여 전지의 품질과 공정 개선을 위한 개발을 진행 중에 있습니다.세미나에서는 이차전지 제작 공정에 대한 소개와 LG 에너지솔루션 내 공정기술센터에서 진행 중인 일들에 대한 소개를 하고자 합니다.
세미나가 이번주 목요일(5월 26일) 오후 4시 30분에 개최됩니다.이번학기 마지막 세미나가 될 예정이며, 많은 참여 부탁드립니다.===============================================================================제 목 : Accelerated Chemical Science using AI연 사 : 정유성 교수(KAIST)일 시 : 2022년 5월 26일(목) 오후 4시 30분장 소 : 화학관 1층 330118호* 온/오프라인 동시에 진행됩니다.<Webex참여>방번호: 170 974 2739링크: https://skku-ict.webex.com/meet/chem================================================================================Accelerated Chemical Science using AIYousung Jung*Department of Chemical and Biomolecular Engineering, KAIST, Daejeon, South Korea.*E-mail: ysjn@kaist.ac.kr Abstract Discovery of new molecules and materials with desired properties is a practical goal of chemical research. A promising way to significantly accelerate the latter process is to incorporate all available knowledge and data to plan the synthesis of the next materials. In this talk, I will present several directions to use informatics and machine learning to efficiently explore chemical space. 1) I will first describe methods of machine learning for fast and reliable predictions of materials and molecular properties. With these tools in place for property evaluation, 2) I will then present a few generative frameworks that we have recently developed to allow the inverse design of molecules and materials with optimal target properties, either in the compositional space or structural space. One general challenge in digital discovery is that many of the molecules and materials that are computationally designed are often discarded in the laboratories since they are not synthesizable. 3) I will thus lastly spend some time to talk about the synthesizability of molecules and materials, either by predicting the synthesis pathways (retrosynthesis) or chemical reactivity. Several challenges and opportunities that lie ahead for further developments of accelerated chemical platform will be discussed.
세미나가 이번주 목요일(5월 19일) 오후 4시 30분에 개최됩니다.많은 참여 부탁드립니다.===================================================================제 목 : Improvements to Integrate Water Electrolysis for H2 Production from Renewable Sources연 사 : 조현석 박사(Korea Institute of Energy Research)일 시 : 2022년 5월 19일(목) 오후 4시 30분<Webex참여>방번호: 170 974 2739링크: https://skku-ict.webex.com/meet/chem==================================================================그린수소 생산을 위한 재생에너지 연계 수전해: 저온 수전해 기술 중심 기술개발Improvements to Integrate Water Electrolysis for H2 Production from Renewable Sources Hyun-Seok Cho Hydrogen Researech Department, Korea Institute of Energy Research,152 Gajeong-ro, Yuseong-gu, Daejeon 305-343, Republic of Koreahscho@kier.re.kr The great merits on low temperature water electrolyzer regarding maturity, large capacity, and cost-effective features have drawn much attention as one of the applications for energy storage systems connected to the renewable energy sources such as the wind and solar. These may provide economic advantages for the management of peaks and valleys in electrical loads as storing to hydrogen as second energy carrier sources, especially in long-term and large-scale(>MW) storage systems. However, the variable loads arise from the renewable power sources can affect the performance on electrolysis and influence the apparent durability. Here, we will discuss improvements on the low temperature water electrolyzer by the significant interaction between engineering and material science disciplines. By applying porous durable and efficient electrode and a reinforced composite inorganic separator with improved cell and stack designs, the the electrolyzer can overcome few drawbacks such as low current operation and slow response to variable loads. We believe that the improvements of poor kinetic efficiency and mitigation of components degradation would increase the system lifetime, and thus improve the economics of low temperature water electrolysis.
해외저명대학 교원초청 특별 세미나가 5월 16일(월) 및 5월 23일(월)에 개최됩니다.많은 참여 부탁드립니다.===============================================================================특강주제 : Bio-inspired material design process to develop functional nanomaterials연 사 : Professor Seung-Wuk Lee(Department of Bioengineering, University of California, Berkeley)일 시 : 2022년 5월 16일(월) 12:00~14:00 2022년 5월 23일(월) 12:00~14:00장 소 : Zoom https://xinics.zoom.us/j/88616607565 (5월 16일) https://xinics.zoom.us/j/85331786002 (5월 23일)================================================================================Ⅰ. 강연자: Professor Seung-Wuk Lee - 2006~현재 : Department of Bioengineering, University of California, Berkeley - Virus를 이용한 나노바이오 소재의 세계적 권위자 -American Institute for Medical and Biological Engineering's College of Fellows (2016) - One of 12 Highlights for President Obama’s US Congress report for the NSF (2014)Ⅱ. 특강주제 및 내용: Bio-inspired material design process to develop functional nanomaterials-Self-assembly: How to crease diverse structures and functions using a natural self-assembly process.-Directed evolution: How to accelerate a new material discovery process using a biomimetic evolution process.-Application: How to apply biological material design concept to solve real world problemsⅢ. 주관: 자연과학대학 화학과 (고두현 교수, 재료화학1 수업)
세미나가 이번주 목요일(5월 12일) 오후 4시 30분에 개최됩니다.많은 참여 부탁드립니다.===============================================================================제 목 : Development of Organometallic Iridium and Nickel Catalysts for Green Acetyl Process연 사 : 유창호 박사(한국화학연구원)일 시 : 2022년 5월 12일(목) 오후 4시 30분<Webex참여>방번호: 170 974 2739링크: https://skku-ict.webex.com/meet/chem================================================================================ body{font-family :돋움; color : #000000; font-size : 10pt; margin: 7px 7px 0 7px;} p,li{line-height:1.2; word-wrap: break-word; margin-top:0; margin-bottom:0;} body{overflow:auto;}.NamoSE_layoutlock_show { word-break: break-all;} body{font-family :굴림; color : #000000; font-size : 10pt; margin : 7px 0 0 7px;} p,li{line-height:1.2; word-wrap: break-word; margin-top:0; margin-bottom:0;} body{overflow:auto;}.NamoSE_layoutlock_show { word-break: break-all;} body{font-family :굴림; color : #000000; font-size : 10pt; margin : 7px 0 0 7px;} p,li{line-height:1.2; word-wrap: break-word; margin-top:0; margin-bottom:0;} body{overflow:auto;}.NamoSE_layoutlock_show { word-break: break-all;} body{font-family :굴림; color : #000000; font-size : 10pt; margin : 7px 0 0 7px;} p,li{line-height:1.2; word-wrap: break-word; margin-top:0; margin-bottom:0;} body{overflow:auto;}.NamoSE_layoutlock_show { word-break: break-all;} Development of Organometallic Iridium and Nickel Catalystsfor Green Acetyl ProcessChangho YooGreen Carbon Research CenterKorea Research Institute of Chemical TechnologyMillions of tons of “acetyls” such as acetic acid and acetic anhydride are produced each year, before these basic building blocks of chemical industry are elaborated into esters, amides, and eventually polymer materials, pharmaceuticals, and other consumer products. The vast majority of acetyls are produced industrially through homogeneous catalysis that relies on toxic methyl iodide promotors and scare precious metal catalyst. Therefore, development of iodide-free processes or earth-abundant catalysts has attracted the attention of both academic and industrial scientists.In the first part, fundamental studies on C–O bond activation using iridium complexes will be presented as a new direction for iodide-free carbonylation. The C–O cleavage of ether and ester was discovered using iridium(I) pincer complexes. The individual steps of methanol carbonylation to methyl acetate was studied to demonstrate an alternative approach for iodide-free carbonylation. Mechanistic studies show initial C–H activation and carbene formation by iridium(I) species to precede productive C–O bond activation. Kinetic studies of migratory insertion and reductive elimination reveal essential roles of the solvent methanol and distinct features of acetate and iodide anions that are relevant to the design of future catalysts for iodide-free carbonylation.In the second part, nickel catalyst for ester carbonylation will be presented. The nickel catalysts supported by N-heterocyclic carbene ligands mediate the carbonylation of methyl esters producing anhydrides with high yields at low catalyst loading. The use of persistent carbene supporting ligands, which can be added as their air-stable imidazolium salt conjugate acid form, represents a dramatic improvement over prior nickel-catalyzed carbonylation reactions supported by tertiary phosphine ligands, raising hopes for industrial application of base metal carbonylation catalysts.
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