H2 storage using Zr-CMK-3 developed by a new synthesis method.

JULIANA M. JUÁREZ; LISANDRO F. VENOSTA; OSCAR A. ANUNZIATA; MARCOS B. GÓMEZ COSTA

INTERNATIONAL JOURNAL OF ENERGY RESEARCH

JOHN WILEY & SONS LTD

Lugar: LOndres; Año: 2022 p. 2893 - 2903

0363-907X

One of the biggest problems in using hydrogen as an alternative fuel is that its storage must be safe and portable. This work addresses a new direct synthesis technique used to obtain a novel mesoporous carbon (CMK-3) modified with zirconium oxide. This novel material shows promise for hydrogen adsorption and storage application for energy harvesting. Zirconium oxide (Zr-CMK-3) material is achieved through successful synthesis and characterized by XRD, SEM, Raman, BET, UV-Vis-DRS, XPS and TEM analyses. Zr-CMK-3 significantly improved H2 storage performance (reaching at 77 K and 10 bar 4.6 wt%) compared to the pristine CMK-3. The novel material is favorable for H2 uptake by using weak bonding (physisorption). A hydrogen uptake mechanistic approach is proposed and the role of the Zr+4 cation in hydrogen adsorption is discussed.