Efficient release of H₂ with negligible CO impurities from sustainable MeOH/H₂O has become a promising goal for on-board hydrogen generator. However, hydrogen release kinetics still face challenges. In this work, the Cu/ZnO/CeO₂ catalyst with high density ultra-small Cu nanoparticles and abundant oxygen vacancies were prepared for intensifying hydrogen evolution in aqueous phase reforming of methanol (APRM). The optimized 55% Cu/ZnO/CeO₂ catalyst (Cu NPs of 3.8 nm, Cu loading of 55.89 wt%, oxygen vacancies of 2.316 × 10¹⁵ spins g⁻¹) exhibited an excellent H₂ evolution rate of 58.39 μmolg_cat⁻¹ s⁻¹ even at low temperature of 210 °C, which was 2.1-fold enhancement than that of commercial Cu/ZnO/Al₂O₃ catalyst. Characterizations and experiments revealed that ZnO/CeO₂ intensified the strong metal-support interaction (SMSI), which anchored the Cu NPs, generated abundant oxygen vacancies and adjusted electronic structure to form Cu⁰-Cu⁺-O_v active sites for facilitating the kinetics of APRM.

从可持续的MeOH/H ₂ O中高效释放H ₂且CO杂质可忽略不计已成为机载氢气发生器的一个有前景的目标。然而，氢释放动力学仍然面临挑战。本工作制备了具有高密度超小Cu纳米粒子和丰富氧空位的Cu/ZnO/CeO ₂催化剂，用于强化甲醇水相重整(APRM)中的析氢。优化的55% Cu/ZnO/CeO ₂催化剂（Cu NPs为3.8 nm，Cu负载量为55.89 wt%，氧空位为2.316 × 10 ¹⁵  spins g ^-1）表现出优异的H ₂析出速率，为58.39 μmolg _cat ^-1即使在210℃的低温下也能实现 s ^{-1 ，这比商业Cu/ZnO/Al} ₂ O ₃催化剂提高了2.1倍。表征和实验表明，ZnO/CeO ₂增强了强金属-载体相互作用（SMSI），锚定了Cu NPs，产生丰富的氧空位并调整电子结构，形成Cu ⁰ -Cu ⁺ -O _v活性位点，以促进动力学的APRM。