RUI: Collaborative Research: An Engineering Design Approach for the Tandem Catalysis of Carbon Dioxide (CO2) using Nanoporous Bi-layer Structures

RUI：协作研究：利用纳米多孔双层结构串联二氧化碳（CO2）催化的工程设计方法

• 批准号: 2207302
• 负责人: Sunghwan Lee
• 金额: $ 25.5万
• 依托单位: Purdue University
• 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=2207302&HistoricalAwards=false
• 关键词: RUI; Collaborative; Research; Engineering; Design

As electricity derived from renewable sources becomes cheaper, its use for driving commercially relevant chemical processes has become increasingly viable, leading the path towards a sustainable energy economy. The combined research team at Purdue and University of Wisconsin Lacrosse are designing new catalysts for the conversion of carbon dioxide (CO2) to value-added products such as ethylene at industrially relevant conversion rates. The team will use their specific expertise to engineer novel layered catalyst structures, allowing the resulting materials to be more robust, efficient, and faster for CO2 conversion. This collaborative project involving both undergraduate and graduate researchers will also impact a broad range of technologies related to renewable energy, transportation, and defense. The project will promote knowledge-sharing activities such as regular joint meetings, undergraduate research mentored closely by graduate students, and inclusion of research activities into the curriculum. The project will also involve participation of underrepresented groups in working with research-intensive universities with a focus on skill-building activities such as group presentations, and scientific writing.This project aims to develop porous bi-layer catalysts on gas-diffusion layer (GDL) substrates which can then be used inside gas-fed carbon dioxide (CO2) electrolyzers allowing conversion to valuable C2+ products such as ethylene, at industrially relevant rates. The guiding principle of the project rests on using the bi-layer structure to break CO2 reduction scaling relations by creating asymmetric reaction sites, allowing greater selectivity through a cascade approach than from a single material. The use of a GDL substrate enables the possibility of high-rate conversions not possible with traditional reactors. The project will identify the underlying factors that determine structure-property relationships of the composite bilayer-GDL heterostructure with a focus on controlling the pore size, grain size, and associated grain boundary density. Specific metal/metal oxide heterostructures will be chosen based on recently available theoretical predictions in order to reduce the reaction overpotential, which often limits the energetic efficiency. In parallel, a carefully controlled pore size will be used to promote C-C coupling reactions through nano-confinement effects. This bilayer-GDL composite structure represents a unique combination of design elements, arising from two unique skill sets in catalyst fabrication and electrochemical testing. Coupled with a novel flow-reactor, the methodology promises to provide valuable insight into the challenging problem of high rate CO2 conversion to C2+ products such as ethylene.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.

随着从可再生能源衍生的电力变得更便宜，它用于推动商业相关的化学过程的使用变得越来越可行，从而带来了通往可持续能源经济的道路。普渡大学和威斯康星大学长曲棍球的合并研究团队正在设计新的催化剂，以将二氧化碳（CO2）转化为增值产品，例如以工业相关的转换率。该团队将使用其特定的专业知识来设计新颖的分层催化剂结构，从而使所得材料更加强大，高效和更快地进行CO2转换。这个涉及本科和研究生研究人员的合作项目还将影响与可再生能源，运输和国防有关的广泛技术。该项目将促进知识共享活动，例如定期联合会议，研究生密切指导的本科研究以及将研究活动纳入课程。 The project will also involve participation of underrepresented groups in working with research-intensive universities with a focus on skill-building activities such as group presentations, and scientific writing.This project aims to develop porous bi-layer catalysts on gas-diffusion layer (GDL) substrates which can then be used inside gas-fed carbon dioxide (CO2) electrolyzers allowing conversion to valuable C2+ products such as ethylene, at与工业相关的费率。该项目的指导原理取决于使用双层结构通过创建不对称反应位点来打破二氧化碳的缩放关系，从而通过级联方法比单个材料更有选择性。 GDL底物的使用使传统反应堆无法进行高速转换。该项目将确定确定复合双层GDL异质结构的结构特性关系的潜在因素，重点是控制孔径，晶粒尺寸和相关的晶粒边界密度。将根据最近可用的理论预测选择特定的金属/金属氧化物异质结构，以减少反应过电势，这通常会限制能量效率。同时，经过精心控制的孔径将用于通过纳米结合效应来促进C-C耦合反应。这种双层GDL复合结构代表了设计元素的独特组合，这是由催化剂制造和电化学测试中的两个独特技能集引起的。加上一种新颖的流动反应器，该方法有望提供有价值的洞察力，以了解高速二氧化碳转换为C2+产品（例如乙烯）的具有挑战性的问题。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识分子优点和更广泛影响的审查标准来通过评估来获得支持的。

项目成果

Copolymers for electronic, optical, and sensing applications with engineered physical properties

• DOI: 10.1063/5.0141885
• 发表时间: 2023-07
• 期刊: Applied Physics Letters
• 影响因子: 4
• 作者: Yuxuan Zhang;Sunghwan Lee

Enhancing memristor fundamentals through instrumental characterization and understanding reliability issues

通过仪器表征和理解可靠性问题增强忆阻器基础知识

• DOI: 10.1039/d3ma00069a
• 发表时间: 2023
• 期刊: Materials Advances
• 影响因子: 5
• 作者: Qin, Fei;Zhang, Yuxuan;Song, Han Wook;Lee, Sunghwan
• 通讯作者: Lee, Sunghwan

Recent achievements toward the development of Ni-based layered oxide cathodes for fast-charging Li-ion batteries

用于快速充电锂离子电池的镍基层状氧化物正极的开发最新成果

• DOI: 10.1039/d2nr05701h
• 发表时间: 2023
• 期刊: Nanoscale
• 影响因子: 6.7
• 作者: Zhang, Yuxuan;Kim, Jae Chul;Song, Han Wook;Lee, Sunghwan
• 通讯作者: Lee, Sunghwan

A Sulfur Cathode Design Strategy for Polysulfide Restrictions and Kinetic Enhancements in Li-S Batteries through Oxidative Chemical Vapor Deposition

• DOI: 10.1016/j.nanoen.2023.108756
• 发表时间: 2023-08
• 期刊: Nano Energy
• 影响因子: 17.6
• 作者: Yuxuan Zhang;Hancheul Song;K. Crompton;Xixian Yang;K. Zhao;Sunghwan Lee