resulting from insufficient light energy conversion and narrow viable wavelength range . Therefore, it is necessary to develop a practical way to balance both efficiency and sustainability. Electrochemical hydrogenation shows a promising prospect for accomplishing the production of aniline in the future (Figure ). The reducing species within electrochemical reactions are directly or indirectly from the external electric field which avoids the participation of sacrificial reductants. On the other hand, the absence of gaseous H2 and hazardous reaction conditions decreases the extra storage and transportation cost and prevents the risk of ignition and explosion. Moreover, selectivity is highly potential related in electrochemistry which leads to a convenient and safe regulation of products and reaction processes in some extension via adjusting the external electric field. In recent decades, valorization of organic compounds via electrochemical reduction has been extensively studied such as the selective hydrogenation of α,β-unsaturated aldehyde , half-hydrogenation of alkyne , Birch reaction of aromatic compounds , and asymmetric hydrogenation . Preliminary studies on electrochemical hydrogenation of Nitrobenzene started in the last century . These studies have established fundamental experimental and testing methods for nitrobenzene reduction. With the development of catalytic materials and characterization techniques, numerous catalysts have been synthesized and studied which significantly increases the conversion and selectivity of nitrobenzene transformation . However, high-performance catalysts commonly require complex synthesis processes and high costs. Meanwhile, catalysts often fail to stably attach to electrodes, which results in unstable catalytic performance in the long term. Moreover, the slight solubility of nitrobenzene in water makes it hard to achieve a high concentration during electrolysis while common organic solvents are difficult to use as a good medium for charge transfer. These reasons lead to inevitable hindrances to extending the reaction scale. Additionally, divided cells are designed to separate the cathodic and anodic cells to prevent side reactions, while it increases the complexity and cost of the reactor.