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，系统地研究了一个可持续且廉价的过程来产生氨气点播氨的概念。该项目将提出一种策略，以在纳米结构的半导体（TIO2 Aerogels）中进行光照射时充电和存储电子，然后可以用N2在黑暗中排出，以催化氨。这可以随时按需生产氨。此外，将开发一个反应堆概念以通过分散的方式执行和研究按需氨合成。该反应器允许分离光收获和实际的N2还原，从而可以独立研究每个反应步骤的反应条件。此外，光电气凝胶中间存储的可能性为设计N2还原反应堆的设计打开了自由度，该反应堆可有益地用于设计有效的化学植物，这些化学植物可在现场和点燃物中生产肥料。