Wu Yaqiang, Sakurai Takuya, Adachi Takumi, Wang Qian
Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan.
Institute for Advanced Research, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan.
Nanoscale. 2023 Apr 6;15(14):6521-6535. doi: 10.1039/d3nr00260h.
The photocatalytic water splitting process to produce H is an attractive approach to meet energy demands while achieving carbon emission reduction targets. However, none of the current photocatalytic devices meets the criteria for practical sustainable H production due to their insufficient efficiency and the resulting high H cost. Economic viability may be achieved by simultaneously producing more valuable products than O or integrating with reforming processes of real waste streams, such as plastic and food waste. Research over the past decade has begun to investigate the possibility of replacing water oxidation with more kinetically and thermodynamically facile oxidation reactions. We summarize how various alternative photo-oxidation reactions can be combined with proton reduction in photocatalysis to achieve chemical valorization with concurrent H production. By examining the current advantages and challenges of these oxidation reactions, we intend to demonstrate that these technologies would contribute to providing H energy, while also producing high-value chemicals for a sustainable chemical industry and eliminating waste.
通过光催化水分解过程来生产氢气是一种在满足能源需求的同时实现碳排放减排目标的有吸引力的方法。然而，由于目前的光催化装置效率不足且导致氢气成本高昂，没有一个能满足实际可持续制氢的标准。通过同时生产比氧气更有价值的产品或与实际废物流（如塑料和食物垃圾）的重整过程相结合，可以实现经济可行性。过去十年的研究已经开始探讨用动力学和热力学上更易进行的氧化反应取代水氧化的可能性。我们总结了各种替代光氧化反应如何能与光催化中的质子还原相结合，以在制氢的同时实现化学增值。通过审视这些氧化反应当前的优势和挑战，我们旨在证明这些技术将有助于提供氢能，同时还能为可持续化学工业生产高价值化学品并消除废物。
