Pd Anchored on a Phytic Acid/Thiourea Polymer as a Highly Active and Stable Catalyst for the Reduction of Nitroarene

Autor:	Yonggang Liu, Jianli Tao, Yunpu Zhai, Hao Zhao, Meng Zhang, Ningbo Geng, Wei Li
Rok vydání:	2021
Předmět:	chemistry.chemical_classification Phytic acid Materials science chemistry.chemical_element Polymer Catalysis Reduction (complexity) chemistry.chemical_compound chemistry Thiourea Nano clusters General Materials Science Selectivity Palladium Nuclear chemistry
Zdroj:	ACS Applied Materials & Interfaces. 13:19904-19914
ISSN:	1944-8252 1944-8244
DOI:	10.1021/acsami.0c23007
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e8bd21858491587c4354f7078145b0b https://doi.org/10.1021/acsami.0c23007 Zobrazit plný text záznamu