CAS: A General Synthetic Platform for Atomically-Precise Functionalization of Two-Dimensional Nanomaterials

CAS：二维纳米材料原子级精确功能化的通用合成平台

• 批准号: 2106450
• 负责人: Christina Li
• 金额: $ 44.31万
• 依托单位: Purdue University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-07-01 至 2025-06-30
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2106450&HistoricalAwards=false
• 关键词: CAS; General; Synthetic; Platform; Atomically

With the support of the Macromolecular, Supramolecular, and Nanochemistry Program in the Division of Chemistry, Dr. Christina Li of Purdue University will investigate the systematic incorporation of a library of metal ions into transition metal dichalcogenides (TMDs) and subsequently study their catalytic activity in the oxygen reduction reaction (ORR), with the expectation that isolated metal dopants exhibit high catalytic activity. The controlled functionalization of these two-dimensional materials has the potential to expand their uses because of the new and tunable properties that arise. After synthesis, Dr. Li and her research team use a variety of instrumental techniques to assess the structure and chemical properties of these materials and to test their performance. They are also developing laboratory modules for advanced high school coursework and teaching modules that are compatible for remote learning.This research involves the exploration of the synthetic phase space available for doping transition metals and post transition metals into tungsten sulfide (WS2), the post-synthetic modification and stabilization of the coordination environment around the metal dopants to increase ORR activity, and the expansion of these synthesis, modification, and dopant strategies to other TMDs. Broader impacts include the development of electrochemistry modules for Advanced Placement chemistry courses and the development of remote teaching modules. While developing a molecular level understanding of TMD activation and functionalization, these materials will be subsequently evaluated for their tunable and stable electrocatalytic performance. This potentially broadly applicable strategy whereby metal-doped TMD structures are synthesized is expected to yield enabling new opto-electronic and catalytic technologies that have the potential to be utilized in batteries or fuel cells.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.

在化学划分的大分子，超分子和纳米化学计划的支持下，普渡大学的克里斯蒂娜·李博士将研究金属离子库的系统融合到过渡金属二分法（TMDS）中，并随后研究其催化剂反应（Orr）的催化剂，并依次研究其催化剂，并依次催化型号。这些二维材料的受控功能化具有扩大其用途的潜力，因为出现了新的可调节性能。合成后，Li博士和她的研究团队使用各种工具技术来评估这些材料的结构和化学性质并测试其性能。 They are also developing laboratory modules for advanced high school coursework and teaching modules that are compatible for remote learning.This research involves the exploration of the synthetic phase space available for doping transition metals and post transition metals into tungsten sulfide (WS2), the post-synthetic modification and stabilization of the coordination environment around the metal dopants to increase ORR activity, and the expansion of these synthesis, modification, and其他TMD的掺杂策略。更广泛的影响包括开发用于高级安排化学课程的电化学模块和远程教学模块的发展。在对TMD激活和功能化的分子水平理解时，随后将评估这些材料的可调和稳定的电催化性能。这种潜在的广泛适用策略预计将合成金属掺杂的TMD结构，可以产生新的光电和催化技术，这些技术有可能在电池或燃料电池中使用，这些技术反映了NSF的立法任务，并通过使用基金会的知识效果和广泛的评论来评估NSF的立法任务，并值得通过评估。

项目成果

Controlled site coverage of strong metal–support interaction (SMSI) on Pd NP catalysts

Pd NP 催化剂上强金属与载体相互作用 (SMSI) 的受控位点覆盖

• DOI: 10.1039/d2cy01707e
• 发表时间: 2023
• 期刊: Catalysis Science & Technology
• 影响因子: 5
• 作者: Breckner, Christian J.;Zhu, Kuixin;Wang, Mingrui;Zhang, Guanghui;Li, Christina W.;Miller, Jeffrey T.
• 通讯作者: Miller, Jeffrey T.