The hydrogenation of CO₂ to hydrocarbon fuels via solar radiation offers a sustainable pathway towards a carbon-neutral energy cycle. However, the reaction is hindered by the intermittent availability of sunlight. This critical issue could be mitigated by engineering a materials system, known as persistent photocatalysis, that prolongs solar fuel production during overcast periods and into the evenings. During illumination, charge can be stored in a suitable capacitor or battery-like material that interfaces with the photocatalyst, while discharging occurs postillumination to continue driving the catalytic reaction. We discuss emerging trends and materials strategies to develop these catalyst systems and prolong the operation of photocatalysis.

通过太阳辐射将CO ₂加氢为碳氢燃料为碳中和能量循环提供了可持续的途径。但是，间歇性的日光供应会阻碍该反应。可以通过设计一种称为持久性光催化的材料系统来缓解此关键问题，该系统可以延长阴天期间和傍晚的太阳能发电量。在照明期间，电荷可以存储在与光催化剂接触的合适的电容器或电池状材料中，而放电发生在后照明中，以继续驱动催化反应。我们讨论了开发这些催化剂体系并延长光催化作用的新兴趋势和材料策略。