Schiff Base Conjugated Carbon Nitride-Supported PdCoNi Nanoparticles for Enhanced Formic Acid Dehydrogenation
Yi‐Ru Wu, Yawen Li, Xiao‐Fen Chen, Guifang Li, Hongyuan Huang, Lishan Jia
Abstract
An effective and low-cost nanocatalyst is designed for formic acid (FA) dehydrogenation to boost practical applications. Herein, we report superior PdCoNi nanoparticles (NPs) supported on Schiff base conjugated carbon nitride, which exhibits excellent catalytic performance with a turnover frequency (TOF) of 1308 h–1 on FA decomposition to hydrogen at room temperature. The results show that the Schiff base groups grafted on the carbon nitride support contribute to providing abundant conjugated active sites for anchoring metal, leading to the formation of ultrafine and well-dispersed PdCoNi NPs (1.70 nm) with electron-rich Pd species, which are responsible for the outstanding catalytic activity. The conjugated Schiff base can also facilitate the O–H bond dissociation on FA, which further promotes the decomposition of FA. This low-cost and high-performance palladium-based catalyst is conducive to the development of composite catalysts on FA dehydrogenation.