SPP 1613: Regeneratively Produced Fuels by Light Driven Water Splitting: Investigation of Involved Elementary Processes and Perspectives of Technologic Implementation

该优先计划的概念始于对黑暗和光照条件下催化水分解反应基本过程的基本探索，并达到对技术可行性工程战略的科学评估和部署。目的是将用于光吸收和电荷分离的半导体基材料与用于O2-和H2-释放反应的元素和仿生催化剂相结合。经核准的单一研究项目应通过结合不同的实验和理论专门知识和方法产生协同作用。偏向于技术上可行的概念应成为参与团体之间的共识。从中期来看，太阳能转换效率高于10%（辐射转化为H2）似乎是现实的，因此在已批准的项目中一般都是可能的。本优先方案不应考虑可能无法实现这种效率或在科学问题上分歧太大的方法，例如，用于光吸收和电荷分离的主要过程的分子或仿生方法，类似于生物系统中的光合作用。研究问题，这主要是有关电流输送太阳能电池，也不应遵循。这些领域已经或已经被以前或正在执行的方案所涵盖。为了实现该优先计划项目之间的高度一致性，将集中关注相互关联的研究课题：光电化学（PEC），生物化学（PC）和电催化（EC），这些将被合并为人工光合作用（PS）模型系统。此外，还应发展新的理论和实验技术，以确定所研究系统的特性。

The concept of this Priority Programme starts from the basic exploration of the elementary processes of the catalytic water splitting reaction in the dark and under illumination and it reaches up to a scientifically based assessment and deployment of engineering strategies tor technological feasible perspectives. Aim is the combination of semiconductor based materials for light absorption and charge separation with elementary and biomimetic catalysts for the O2- and the H2- evolving reactions. The single approved research projects shall lead to synergies by the combination of differing experimental and theoretical expertise and approaches. A bias towards technologically viable concepts should be consensus between the participating groups. Solar energy conversion efficiencies above ten percent (radiation to H2) seem to be realistic in the medium term and should therefore be generally possible in the approved projects. Approaches, which will presumably not deliver such efficiencies or which are too divergent in their scientific issues, shall not be considered in this Priority Programme, e.g. molecular or biomimetic methods for the primary processes of light absorption and charge separation in analogy to photosynthesis in biological systems. Research issues, which are primarily related to current delivering solar cells, shall not be followed either. These areas have been or are already covered by previous or running programmes. To achieve a high degree of coherence between the projects of this Priority Programme, there will be a thematic concentration on strongly interconnected research topics: photoelectrochemistry (PEC), photocatalysis (PC) and electrocatalysis (EC), which are to be combined into model systems for artificial photosynthesis (PS). Furthermore, new theoretical and experimental techniques for the characterisation of the systems under investigation should be developed.