Herein, we report an excellent in-situ exsolution triggered hydrogenated catalyst F-Ni/Cu-P-RT started from bimetallic phosphate Ni/Cu-P-RT, affording an ultrafast catalytic hydrogenated rate (20 s even 5 s) in nitrophenol reduction. In the first catalytic cycle, we proved the enhanced catalytic reduction activity of bimetallic Ni/Cu-P-RT within 50 s compared to monometallic counterparts. The kinetics results revealed Ni/Cu-P-RT affords the reaction rate K of 2.85/4.23/6.6 min⁻¹ at 20, 30, and 40 °C with the activation energy 32 kJ/mol. Impressively, the involved reaction induction period is visibly observed and interpreted by reconstruction and evolution of active metal during the reaction, but was eliminated through integrating two metal Cu-Ni by regulation of electronic band energy of phosphate from 4.1–3.5 eV. The nascent Cu and Ni nanoparticles as reaction-preferred active species were in-situ exsolved partially after adding NaBH₄, triggering the resulted higher active and stable F-Ni/Cu-P-RT(20 s, 14.1 min⁻¹) in later multiple cycles.

本文中，我们报道了一种出色的原位脱氢引发从双金属磷酸盐Ni / Cu-P-RT开始的氢化催化剂F-Ni / Cu-P-RT，在硝基苯酚还原中提供了超快的催化氢化速率（20 s甚至5 s） 。在第一个催化循环中，我们证明了与单金属对应物相比，双金属Ni / Cu-P-RT在50秒内具有增强的催化还原活性。动力学结果表明，Ni / Cu-P-RT的反应速率K为2.85 / 4.23 / 6.6 min ^-1在20、30和40°C下的活化能为32 kJ / mol。令人印象深刻的是，通过反应过程中活性金属的重构和析出可以明显地观察和解释所涉及的反应诱导期，但通过调节4.1-3.5 eV的磷酸盐电子带能将两种金属Cu-Ni整合在一起，从而消除了反应诱导期。添加NaBH ₄后，将原位溶解为新生的Cu和Ni纳米粒子作为反应优选的活性物质，并在随后的20 s，14.1 min ^-1内触发更高活性和稳定性的F-Ni / Cu-P-RT多个周期。