Pd Anchored on a Phytic Acid/Thiourea Polymer as a Highly Active and Stable Catalyst for the Reduction of Nitroarene,ACS Applied Materials & Interfaces

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Pd Anchored on a Phytic Acid/Thiourea Polymer as a Highly Active and Stable Catalyst for the Reduction of Nitroarene
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2021-04-26 , DOI: 10.1021/acsami.0c23007
Meng Zhang ₁ , Yonggang Liu ₂ , Hao Zhao ₁ , Jianli Tao ₁ , Ningbo Geng ₃ , Wei Li ₄ , Yunpu Zhai ₁

Affiliation

A kind of N, P, C, O-containing polymer was easily prepared via microwave heating of phytic acid and thiourea just for 90 s. After impregnation and reduction of H₂PdCl₄, highly dispersed Pd single atoms/sub-nano clusters loaded on the phytic acid/thiourea polymer (Pd–CNSP) were successfully obtained. Owing to the synergetic effect of the polymer support and Pd, the catalyst Pd–CNSP achieves a great atomic efficiency of Pd species and exhibits an outstanding catalytic ability in the reduction of 4-nitrophenol. The k value of the catalyst Pd–CNSP (2.17 min^–1 mg^–1) is about 19 times higher than that of the commercial Pd/C (5 wt %) catalyst. The turnover frequency value is as high as 848 min^–1, which is the highest value reported so far. Pd–CNSP also has good selectivity for the reduction of halogen-substituted (Cl and Br) nitroaromatics. It is expected to be mass-produced and used in other industrial hydrogenation reactions.

中文翻译：

Pd固定在植酸/硫脲聚合物上作为还原硝基芳烃的高活性和稳定催化剂

通过植酸和硫脲的微波加热仅需90 s，即可轻松制备出一种含N，P，C，O的聚合物。在H ₂ PdCl _4的浸渍和还原之后，成功获得了负载在植酸/硫脲聚合物（Pd-CNSP）上的高度分散的Pd单原子/亚纳米簇。由于聚合物载体和Pd的协同作用，Pd-CNSP催化剂具有很高的Pd原子效率，并且在还原4-硝基苯酚方面表现出出色的催化能力。催化剂Pd–CNSP（2.17 min ^–1 mg ^–1）的k值是商业Pd / C（5 wt％）催化剂的k值的约19倍。周转频率值高达848 min ^–1，这是迄今为止报告的最高值。Pd-CNSP对还原卤素取代的（Cl和Br）硝基芳族化合物也具有良好的选择性。预计将大量生产并用于其他工业加氢反应中。

更新日期：2021-05-05

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