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Abstract：
Energy security concerns require novel greener and more sustainable processes, and Paris Agreement goals have put in motion several measures aligned with the 2050 roadmap strategies and net zero emission goals. Renewable energies are a promising alternative to existing infrastructures, with solar energy one of the most appealing due to its use of the overabundant natural source of energy. Photocatalysis as a simple heterogeneous surface catalytic reaction is well placed to enter the realm of scaling up processes for wide scale implementation. Inspired by natural photosynthesis, artificial water splitting\'s beauty lies in its simplicity, requiring only light, a catalyst, and water. The bottlenecks to producing a high volume of hydrogen are several: Reactors with efficient photonic/mass/heat profiles, multifunctional efficient solar-driven catalysts, and proliferation of pilot devices. Three case studies, developed in Japan, Spain, and France are showcased to emphasize efforts on a pilot and large-scale examples. In order for solar-assisted photocatalytic H2 to mature as a solution, the aforementioned bottlenecks must be overcome for the field to advance its technology readiness level, assess the capital expenditure, and enter the market.
摘要：
能源安全问题需要新的更绿色和更可持续的过程，和《巴黎协定》的目标已经启动了几项与2050年路线图战略和净零排放目标相一致的措施。可再生能源是现有基础设施的有希望的替代品，太阳能是最吸引人的能源之一，因为它使用了过剩的自然能源。光催化作为一种简单的非均相表面催化反应，可以很好地进入大规模实施的放大过程领域。受自然光合作用的启发，人造水的美丽在于它的简单，只需要光，催化剂，和水。产生大量氢气的瓶颈有几个：具有高效光子/质量/热量分布的反应器，多功能高效太阳能驱动催化剂，以及先导装置的扩散。三个案例研究，开发于日本,西班牙,和法国展示了强调在试点和大规模例子上的努力。为了使太阳能辅助光催化H2成熟为解决方案，该领域必须克服上述瓶颈，以提高其技术准备水平，评估资本支出，进入市场。
