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Updated: Aug 10, 2025

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
Published on: December 6, 2021
Mechanochemical effects underlying the mechanically activated catalytic hydrogenation of carbon monoxide
Maria Carta1, Anna Laura Sanna2, Andrea Porcheddu2
1Dipartimento di Ingegneria Meccanica, Chimica, e dei Materiali, CSGI Cagliari Research Unit, Università degli Studi di Cagliari, via Marengo 2, 09123, Cagliari, Italy.
Abstract:
In this work, we highlight and measure the intensity of mechanochemical effects at work in the hydrogenation of carbon monoxide by comparing the activity of a supported Co-Fe catalyst subjected, respectively, to ball milling and simple powder agitation. Paying due regard to the discontinuous nature of ball milling, we show that mechanochemical hydrogenation proceeds at significantly higher rate and disclose its connection with individual impacts. Experimental evidence suggests that the enhanced catalytic activity we observe can be ascribed to local processes affecting the amount of powder that gets involved in individual impacts.
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