Ordering Bimetallic Cu‐Pd Catalysts onto Orderly Mesoporous SrTiO<sub>3</sub>‐Crystal Nanotubular Networks for Efficient Carbon Dioxide Photoreduction
Fan Fang, Jie Zhang, Lijing Xiang, Chong Chen, Nengjie Feng, Yanqi Lv, Kun Chang, Jun Huang
Abstract
Abstract Artificial photosynthesis of fuels has garnered significant attention, with SrTiO 3 emerging as a potential candidate for photocatalysis due to its exceptional physicochemical properties. However, selectively converting CO 2 into fuels with desired reaction products remains a grand challenge. Herein, we design an updated method via an aging strategy based on the electrospinning technique to synthesize a single‐crystalline Al‐doped SrTiO 3 nanotubular networks with self‐assembled orderly mesopores, further modified by Cu−Pd alloy. It exhibits both high crystallinity and superior cross‐linked mesoporous structures, effectively facilitating charge carrier transfer, photon utilization, and mass transfer, with a remarkable enhancement from 0.025 mmol h −1 m −2 to 1.090 mmol h −1 m −2 in the CO production rate. Meanwhile, the ordered arrangement of Cu and Pd atoms on the (111) surface can promote the rate‐determining step (*CO 2 to *COOH), which is also responsible for its good activity. The presence of CuO in the reaction confers a significant advantage for CO desorption, leading to a remarkable CO selectivity of 95.54 %. This work highlights new insights into developing advanced heterogeneous photocatalysts.