20點直播|愛荷華州立大學教授作報告

原文地址：http://news.sciencenet.cn/htmlnews/2023/8/507197.shtm

直播時間：2023年8月25日（周五）20:00-21:30

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北京時間2023年8月25日晚八點，iCANX Talks邀請到愛荷華州立大學Aaron J. Rossini進行分享！更多精彩，敬請期待！

【嘉賓介紹】

Aaron J. Rossini

Iowa State University

Molecular Structure Determination of Inorganic Nanomaterials by Sensitivity-Enhanced Solid-State NMR Spectroscopy

【Abstract】

The molecular level structure of materials gives rise to their properties. However, it is challenging to determine the structure of materials that lack long-range order, making it difficult to form structure-property relationships. My research group develops and applies solid-state nuclear magnetic resonance (SSNMR) spectroscopy to obtain detailed structural models of materials. SSNMR spectroscopy is amongst the most powerful atomic level characterization technique for solids because it can measure inter-atomic distances, and probe chemical bonding and symmetry with element specificity in both ordered and amorphous systems. In this talk, I will illustrate how sensitivity-enhanced SSNMR spectroscopy techniques can be applied to study the structures of inorganic nanomaterials such as semiconductor nanoparticles, disordered 2D materials, and heterogeneous catalysts.

材料的分子結構決定了其特性。然而，確定缺乏長程有序的材料結構是具有挑戰性的，很難形成結構-性能關系。我的研究小組開發并應用固態核磁共振（SSNMR）光譜技術，以獲得材料的詳細結構模型。SSNMR 光譜是最強大的固體原子級表征技術之一，它可以測量原子間距離，并以元素特異性探測有序和無定形系統中的化學鍵和對稱性。在本講座中，我將說明如何將靈敏度增強的 SSNMR 光譜技術應用于研究無機納米材料（如半導體納米粒子、無序二維材料和異質催化劑）的結構。

【BIOGRAPHY】

Aaron Rossini is an Associate Professor of Chemistry at Iowa State University and a Faculty Scientist at the US DOE Ames Laboratory. He has published more than 150 peer-reviewed publications. His independent research was recognized with a Alfred P. Sloan Research Fellowship in 2020 and he was awarded the Caldarelli Prize in Magnetic Resonance for Young Investigators at the 2019 Alpine Conference on Magnetic Resonance. He completed his PhD studies in September 2010 at the University of Windsor, Windsor, Ontario, Canada, under the supervision of Prof. Robert W. Schurko. In 2011 he moved to Lyon, France to work with Prof. Lyndon Emsley and Dr. Anne Lesage at the Centre de Resonance Magnetique Nucleaire à Très Haut Champs (CRMN Lyon) at the Ecole Normale Superieure de Lyon (ENS Lyon) as a Marie Curie International Incoming Fellow. In October 2014 he moved to École Polytechnique Fédérale de Lausanne (EPFL) in Lausanne, Switzerland to continue working with Prof. Emsley. In August 2015, he moved to Ames, Iowa to join the Department of Chemistry at Iowa State University as an Assistant Professor. He was promoted to Associate Professor in August 2021 and to Full Professor in August 2023.