Ammonia on demand: Catalytic N2 reduction on photo-charged tailored TiO2 aerogels

按需氨：光充电定制 TiO2 气凝胶催化 N2 还原

• 批准号: 501591928
• 负责人: Professor Dr. Roland Marschall
• 金额: --
• 依托单位: Institut für Chemieingenieurwesen
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/501591928?language=en
• 关键词: Ammonia; demand; Catalytic; N2; reduction

In the present project, a concept for a sustainable and inexpensive process to generate ammonia on-demand is systematically investigated. This project will present a strategy to charge and store electrons upon light irradiation in a nanostructured semiconductor (TiO2 aerogels), which can be then discharged in the dark with N2 to form ammonia catalytically. This enables the production of ammonia on demand at any time. Moreover, a reactor concept will be developed to perform and investigate the on-demand ammonia synthesis in a decentralized way. This reactor allows for a separation of light-harvesting and the actual N2 reduction, enabling an independent investigation of the reaction conditions for each reaction step. Furthermore, the possibility of intermediate storage of a photocharged aerogel opens up degrees of freedom for the design of the N2 reduction reactor, which can beneficially be utilized for the design of efficient chemical plants that produce fertilizers on-site and on-demand.

在本项目中，系统地研究了可持续和廉价的按需生成氨的过程的概念。该项目将提出一种在纳米结构半导体（TiO 2气凝胶）中进行光照射时充电和存储电子的策略，然后可以在黑暗中用N2放电以催化形成氨。这使得氨的生产可以随时按需进行。此外，将开发反应器概念，以分散的方式执行和研究按需氨合成。该反应器允许分离光捕获和实际的N2还原，从而能够独立地研究每个反应步骤的反应条件。此外，光荷电气凝胶的中间储存的可能性为N2还原反应器的设计打开了自由度，其可以有益地用于设计现场和按需生产肥料的有效化工厂。