| Итог: | <p>The agile ammonia synthesis is a collection of energy generation and storage infrastructure, which allows sustainable, local, and independent energy provision by converting renewable energy to hydrogen and ammonia, as well as in battery energy storage systems such as lithium-ion batteries. Many of these systems utilise archetypal inorganic materials, in particular due to enhanced performance from the incorporation of light-element dopants. Here, three components of the agile ammonia synthesis pathway are investigated in order to better understand the complex structure-activity relationship, in particular by using complex in-situ, in-operando, and inelastic synchrotron X-ray powder diffraction.</p>
<p>The nitrogen doping of titania is shown to impart increased structural and electronic defects that can be exploited by photo-absorption of visible light to split water using nothing else but solar irradiance. The generation of oxygen vacancies was observed by anisotropic thermal expansion, and supported by DFT calculations and photocatalytic performance. The use of palladium nanoparticles as an electrochemical energy store by lithium intercalation has been evaluated, and in-depth phase transitions characterised. Though the intercalation process reduces the order of the host framework, the cycling capacity remains constant, indicating amorphisation does not equate to performance degradation. The location of preferential substitutional aluminium sites in zeolite ZSM-5 has been yielded by observing probe molecule adsorption, but also directly by exploiting high-contrast anomalous scattering. The results of various techniques are in broad agreement of the siting, which will have impact the understanding of zeolite synthesis and performance mechanisms.</p>
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