Iron Phosphide Nanocrystals As an Air-stable Heterogeneous Catalyst for Liquid-phase Nitrile Hydrogenation

Overview

Journal Nat Commun

Specialty Biology

Date 2023 Sep 28

PMID 37770434

Authors

Tomohiro Tsuda

Min Sheng

Hiroya Ishikawa

Seiji Yamazoe

Jun Yamasaki

Motoaki Hirayama

Sho Yamaguchi

Tomoo Mizugaki

Takato Mitsudome

Affiliations

Soon will be listed here.

Abstract

Iron-based heterogeneous catalysts are ideal metal catalysts owing to their abundance and low-toxicity. However, conventional iron nanoparticle catalysts exhibit extremely low activity in liquid-phase reactions and lack air stability. Previous attempts to encapsulate iron nanoparticles in shell materials toward air stability improvement were offset by the low activity of the iron nanoparticles. To overcome the trade-off between activity and stability in conventional iron nanoparticle catalysts, we developed air-stable iron phosphide nanocrystal catalysts. The iron phosphide nanocrystal exhibits high activity for liquid-phase nitrile hydrogenation, whereas the conventional iron nanoparticles demonstrate no activity. Furthermore, the air stability of the iron phosphide nanocrystal allows facile immobilization on appropriate supports, wherein TiO enhances the activity. The resulting TiO-supported iron phosphide nanocrystal successfully converts various nitriles to primary amines and demonstrates high reusability. The development of air-stable and active iron phosphide nanocrystal catalysts significantly expands the application scope of iron catalysts.

Citing Articles

Triacylphosphines as a Novel Class of Phosphorus Sources for the Synthesis of Transition Metal Phosphide Nanoparticles.

Antanovich A, Iodchik A, Li J, Khavlyuk P, Shamraienko V, Lesnyak V Small. 2024; 21(6):e2409389.

PMID: 39703038 PMC: 11817936. DOI: 10.1002/smll.202409389.

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