HPZSM-5 with hierarchical porous structure obtained via partial desilication of commercial ZSM-5 was proved to be a suitable support for Pt nanoparticles towards the liquid-phase selective hydrogenation of cinnamaldehyde (CAL) to yield cinnamyl alcohol (COL). Compared with Pt/ZSM-5, Pt/HPZSM-5 showed improved catalytic performance although the improvement seems to be very limited. After doping Fe to Pt/HPZSM-5 with a Fe/Pt molar ratio of 0.25, the PtFe/HPZSM-5 catalyst gave much further enhanced CAL conversion. Under the optimized conditions, a 97.9% CAL conversion with 87.6% selectivity to COL was achieved with the PtFe/HPZSM-5 catalyst. The initial activity (in terms of TOF value, defined as molecules of CAL converted per surface atom of Pt per second) reached about 3.41 s⁻¹ with the PtFe/HPZSM-5 catalyst, one of the highest values up to now to our best knowledge. Moreover, the PtFe/HPZSM-5 catalyst can be recycled for at least 9 times without obvious loss in activity or selectivity to COL. The effect of partial desilication and Fe doping on the catalytic performance of PtFe/HPZSM-5 was discussed based on the characterization results using a series of techniques.

通过商业化的ZSM-5的部分脱硅获得的具有分级多孔结构的HPZSM-5被证明是对Pt纳米颗粒进行肉桂醛（CAL）液相选择性氢化以产生肉桂醇（COL）的合适载体。与Pt / ZSM-5相比，Pt / HPZSM-5显示出改善的催化性能，尽管这种改善似乎非常有限。在Fe / Pt摩尔比为0.25的情况下将Fe掺杂到Pt / HPZSM-5中之后，PtFe / HPZSM-5催化剂进一步提高了CAL转化率。在优化的条件下，使用PtFe / HPZSM-5催化剂可实现97.9％的CAL转化率和87.6％的COL选择性。初始活性（根据TOF值定义为每秒Pt的每个表面原子转化的CAL分子）达到约3.41 s ^-1使用PtFe / HPZSM-5催化剂，就我们所知，这是迄今为止最高的值之一。此外，PtFe / HPZSM-5催化剂可循环使用至少9次，而活性或对COL的选择性没有明显损失。基于一系列技术的表征结果，讨论了部分脱硅和Fe掺杂对PtFe / HPZSM-5催化性能的影响。