Highly efficient releasing of hydrogen by aqueous-phase reforming of methanol (APRM) is of great significance to promote the development of stationary and mobile H₂ power supply for polymer electrolyte membrane fuel cells (PEMFCs). However, highly active catalysts with excellent performance of in situ releasing H₂ from APRM still face challenges. Herein, we report a Cu-SP/Al₂O₃–ZnO (Cu-SP/AZ) catalyst prepared by carbon layer encapsulated hierarchical porous microsphere strategy, which enhanced Cu dispersion (52.8 wt% loading, ∼5 nm particle size) on Al₂O₃–ZnO (AZ) microsphere. The proposed catalyst exhibited high H₂ production rate (base-free) of 64.23 μmolH₂/gcat/s at 210 °C, which was nearly the same as that of 20% Pt/C catalyst (63.86 μmolH₂/gcat/s) and 2.6-fold higher than that of commercial CuO/ZnO/Al₂O₃ catalyst (24.62 μmolH₂/gcat/s). The characterization results demonstrated that its high activity in APRM could be ascribed to the strategy of carbon layer encapsulated hierarchical porous microsphere as well as coordination of hydroxyl functional group of SP with Cu²⁺.

甲醇水相重整（APRM）高效放氢对促进聚合物电解质膜燃料电池（PEMFCs）固定式和移动式H _{2电源的发展具有重要意义。}然而，具有优异的从APRM原位释放H _{2性能的高活性催化剂仍然面临挑战。}在此，我们报道了一种通过碳层包封分级多孔微球策略制备的 Cu-SP /Al ₂ O ₃ –ZnO (Cu-SP/AZ) 催化剂，该催化剂增强了 Cu 在表面上的分散（52.8 wt% 负载量，~5 nm 粒径） Al ₂ O ₃ –ZnO (AZ) 微球。所提出的催化剂表现出高 H ₂210 °C 时的产率（无碱）为 64.23 μmolH _{2 /gcat/s，与 20% Pt/C 催化剂（63.86 μmolH 2} /gcat/s）几乎相同，比其高 2.6 倍商业 CuO/ZnO/Al ₂ O ₃催化剂 (24.62 μmolH ₂ /gcat/s)。表征结果表明，其在 APRM 中的高活性可归因于碳层包封分级多孔微球的策略以及 SP 的羟基官能团与 Cu 2+ 的配^位。