Development of robust and cheap catalyst for fast hydrogen evolution from ammonia borane (AB) aqueous solution is an interesting and important topic in the field of hydrogen energy. Herein, a novel non-precious Co_3xCu_3-3x(PO₄)₂ catalyst possessing high reactivity in AB hydrolysis has been developed for the first time. By tuning the molar ratio of Co and Cu, a series of Co_3xCu_3-3x(PO₄)₂ with different x were synthesized and the catalytic behavior in AB hydrolysis was examined. At the optimal x of 0.8, an ultrahigh turnover frequency of 72.6 min⁻¹ was achieved. Additionally, the synergistic effect between Cu₃(PO₄)₂ and Co₃(PO₄)₂ was experimentally confirmed, and the reaction kinetics of AB hydrolysis catalyzed by Co_2.4Cu_0.6(PO₄)₂ were investigated. This work provides a simple route and some new insights for the fabrication of a cheap P-containing catalyst with robust catalytic performance.

为从氨硼烷（AB）水溶液中快速析氢而开发出坚固耐用且廉价的催化剂，是氢能领域中一个有趣且重要的课题。在此，首次开发了在AB水解中具有高反应性的新型非贵金属Co _3x Cu _3-3x（PO ₄）₂催化剂。通过调节Co和Cu的摩尔比，合成了一系列具有不同x的Co _3x Cu _3-3x（PO ₄）₂，并研究了在AB水解中的催化行为。在0.8的最佳x下，实现了72.6min ^-1的超高周转频率。另外，铜之间的协同作用实验上证实了₃（PO ₄）₂和Co ₃（PO ₄）₂，并研究了Co _2.4 Cu _0.6（PO ₄）₂催化的AB水解反应动力学。这项工作为制造具有鲁棒催化性能的廉价含P催化剂提供了一条简单的途径和一些新见识。