Alternatives to water oxidation in the photocatalytic water splitting reaction for solar hydrogen production
Alternatives to water oxidation in the photocatalytic water splitting reaction for solar hydrogen production
复制标题
太阳能制氢光催化水分解反应中水氧化的替代方案
DOI：
10.1039/d3nr00260h
复制
发表时间：
2023
期刊：
影响因子：
6.7
通讯作者：
Qian Wang
中科院分区：
文献类型：
--
作者：
Yaqiang Wu;Takuya Sakurai;Takumi Adachi;Qian Wang
光催化分解水产生H2是一种有吸引力的方法，可以满足能源需求，同时实现碳减排目标。然而，目前的光催化装置中没有一个满足实际可持续H2生产的标准，这是由于它们的效率不足和由此产生的高H2成本。通过同时生产比O2更有价值的产品或与真实的废物流（如塑料和食物废物）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调查用动力学和化学上更容易的氧化反应代替水氧化的可能性。我们总结了如何将各种不同的光氧化反应与质子还原反应结合起来，以实现化学稳定和同时产生H2。通过研究这些氧化反应目前的优势和挑战，我们打算证明这些技术将有助于提供H2能源，同时也为可持续的化学工业生产高价值的化学品并消除浪费。
The photocatalytic water splitting process to produce H2 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 H2 production due to their insufficient efficiency and the resulting high H2 cost. Economic viability may be achieved by simultaneously producing more valuable products than O2 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 H2 production. By examining the current advantages and challenges of these oxidation reactions, we intend to demonstrate that these technologies would contribute to providing H2 energy, while also producing high-value chemicals for a sustainable chemical industry and eliminating waste.