CAS: Collaborative Research: Tailoring the Distribution of Transient vs. Dynamic Active Sites in Solid-Acid Catalysts and Their Impacts on Chemical Conversions

CAS：合作研究：定制固体酸催化剂中瞬时活性位点与动态活性位点的分布及其对化学转化的影响

• 批准号: 2154399
• 负责人: Steven Crossley
• 金额: $ 56.56万
• 依托单位: University of Oklahoma Norman Campus
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-09-01 至 2025-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2154399&HistoricalAwards=false
• 关键词: CAS; Collaborative; Research; Tailoring; Distribution; CAS; Collaborative; Research; Tailoring; Distribution

With funding from the Chemical Catalysis Program of the Chemistry Division, Jeffrey White of Oklahoma State University and Steven Crossley, Daniel Resasco and Bin Wang of University of Oklahoma will carry out an interdisciplinary study of new zeolite catalysts. The need for robust but sustainable catalysts that can convert molecules derived from a variety of sources, including traditional hydrocarbons, waste streams, and plant-based feedstocks into energy carriers and building blocks for consumable and durable goods requires fundamental understanding of catalyst design variables, resulting function, and environmental impacts. Solid-acid catalysts, including the important class of materials known as zeolites, are attractive for the processing of new feedstocks as well as reducing harmful byproducts in conversion of traditional hydrocarbons, due to the variety of designable structures and topologies. These catalysts are environmentally benign and do not require use of precious metals. The team will be engaged in a research collaboration to identify new catalyst materials that meet the challenges posed by unconventional and water-rich feeds, as well as reduce environmental footprints. The collaborative team will train students at all college levels, including undergraduate, graduate, and under-represented groups, to be active contributors to the national STEM (science, technology, engineering, and mathematics) infrastructure. Through publication outlets and local, state, national, and international meetings, the team will increase awareness of how fundamental catalysis research impacts economically important industries, both present and future, and will attract attention from industrial partners.The collaborative team will use an interdisciplinary synthesis, characterization, simulation, and reaction analysis approach to create and characterize new zeolite catalysts where the distribution of isolated, paired, proximate, and synergistic active sites are controlled. Drs. White, Resasco, Wang and Crossley will be engaged in tailored synthesis of zeolites, post-synthetic modifications of zeolites, in-situ spectroscopic NMR measurements, and reactor studies at varying temperature and pressure to determine how catalyst active site placement, distribution, and temporal behavior respond in key reactions involving both traditional and non-traditional feedstocks. Goals include reduction of unwanted chemical byproducts, which ultimately lead to increased CO2 emissions, and control of reversible vs. irreversible active site degradation pathways. The team will endeavor to advance inclusion of underrepresented groups in STEM disciplines through programs on each campus, and increase public awareness of the benefit of catalysis through public media outlets at the university and state level.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

俄克拉荷马州立大学的杰弗里·怀特（Jeffrey White）和俄克拉荷马大学的史蒂文·克罗斯利（Steven Crossley）的杰弗里·怀特（Jeffrey White）和史蒂文·克罗斯利（Steven Crossley）的杰弗里·怀特（Jeffrey White）和俄克拉荷马大学的邦·王（Daniel Resasco）和本·王（Bin Wang）将对新的沸石催化剂进行跨学科研究。需要稳健但可持续的催化剂，这些催化剂可以转换源自各种来源的分子，包括传统的碳氢化合物，废物流和基于植物的原料为能量载体和能量载体和构建块，以实现消耗和耐用的商品的基础，需要对催化剂设计变量的基本了解，从而产生功能以及环境影响。 固态催化剂，包括称为沸石的重要材料类，对于新的原料的加工以及由于多种可设计的结构和拓扑而导致的传统碳氢化合物转换时，可在新的原料进行处理以及减少有害的副产品。 这些催化剂在环境上是良性的，不需要使用贵金属。该团队将进行研究合作，以确定应对非常规和水的饲料所带来的挑战的新催化剂材料，并减少环境足迹。 合作团队将在所有大学级别的学生中培训学生，包括本科生，研究生和代表性不足的小组，成为国家STEM（科学，技术，工程和数学）基础设施的积极贡献者。通过出版渠道以及本地，州，国家和国际会议，团队将提高人们对基本催化研究如何影响经济上重要的行业的认识站点受控制。博士。白人，雷斯科，王和克罗斯利将参与量身定制的沸石合成，沸石的合成后修饰，原位光谱的NMR测量值以及在变化温度和压力下的反应堆研究，以确定催化剂的主动位置，分布，分布，分布和非传统反应的响应，并在传统的反应中响应。 目标包括减少不需要的化学副产品，最终导致二氧化碳排放量增加，以及控制可逆的与不可逆的主动部位降解途径的控制。该团队将努力通过每个校园的计划来提高人数不足的群体在STEM学科中，并提高公众对通过大学和州一级通过公共媒体核对催化的好处的认识。这项奖项反映了NSF的法定任务，并通过使用该基金会的知识优点和广泛影响来评估NSF的法定任务，并被认为是值得的。