Bovine serum albumin (BSA)-templated CeO₂ was prepared by citrate sol-gel method and used as a support to synthesize Au catalyst for benzene oxidation. It was found that the Au/BSA-CeO₂ with 3.2 nm Au nanoparticles (NPs) gave rise to superior catalytic performance for benzene oxidation in which the temperature for 90 % benzene conversion was only 210 °C. In addition, the catalytic activity of Au/BSA-CeO₂ remained stable for 140 h of on-stream reaction. Besides, density functional theory calculation demonstrated how the porous structure of CeO₂ influenced the oxygen vacancy generation, and the synergetic effects of Au NPs and CeO₂ support facilitated the activation of benzene which was adsorbed on Au NPs prior to benzene oxidation. The catalysis of benzene oxidation over Au/CeO₂ catalyst follows the dual-site mechanism. BAS-templated CeO₂ support possessed hierarchical structure, abundant adsorbed oxygen species and synergic interaction with Au that determined the performance of Au/BSA-CeO₂.

采用柠檬酸盐溶胶-凝胶法制备了牛血清白蛋白（BSA）模板的CeO ₂，并作为载体合成了用于苯氧化的Au催化剂。发现具有3.2nm的Au纳米颗粒（NP）的Au / BSA-CeO ₂产生了优异的苯氧化催化性能，其中90％的苯转化温度仅为210℃。此外，Au / BSA-CeO ₂的催化活性在运行中140小时保持稳定。此外，密度泛函理论计算证明了CeO ₂的多孔结构如何影响氧空位的产生，以及Au NPs和CeO ₂的协同作用。支持物促进了苯的活化，该苯在苯氧化之前被吸附在金纳米颗粒上。Au / CeO ₂催化剂上苯氧化的催化遵循双中心机理。BAS模板的CeO ₂载体具有分层结构，丰富的吸附氧种类以及与Au的协同相互作用，这决定了Au / BSA-CeO ₂的性能。