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

这一优先方案的概念始于对黑暗和光照下催化裂水反应基本过程的基本探索，并达到从技术可行性的角度对工程战略进行科学评估和部署的目的。AIM是将用于光吸收和电荷分离的半导体材料与用于O2-和放氢反应的基本和仿生催化剂相结合。单独核准的研究项目应结合不同的实验和理论专门知识和方法，产生协同增效作用。对技术上可行的概念的偏向应该是各参与组之间的共识。太阳能转换效率超过10%(辐射到氢气)在中期看来是现实的，因此在核准的项目中一般都是可能的。这一优先计划不应考虑那些想必不会产生这种效率或在其科学问题上分歧太大的方法，例如类似于生物系统中光合作用的光吸收和电荷分离的主要过程的分子或仿生方法。主要与电流输送太阳能电池有关的研究问题也不应遵循。这些领域已经或已经被以前或正在实施的方案所涵盖。为了实现这一优先计划的项目之间的高度协调一致，将把主题集中在紧密相连的研究专题上：光电化学(PEC)、光催化(PC)和电催化(EC)，它们将被合并到人工光合作用(PS)的模型系统中。此外，应开发新的理论和实验技术来表征所研究的系统。

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.