Abstract
The rational design and construction of stable metal nanoparticles (NPs) are urgently needed to address the challenges of energy scarcity and environmental degradation. In this work, zirconium dioxide-supported platinum (ZrO2/Pt) nanoparticles heterostructure electrocatalyst was synthesized from a platinum-loaded metal-organic framework (Pt/UiO-66-NH2) nanocomposite using a facile ion-exchange strategy combined with a soft template method. The octahedral morphology, high surface area and suitable porosity of UiO-66-NH2 are particularly advantageous for anchoring Pt NPs on its surface. The calcination step is crucial for inducing defects and generating oxygen vacancies, which help stabilize the Pt NPs on ZrO2 matrix. Notably, the morphology of the ZrO2/Pt heterostructure remains consistent with that of the original Pt/UiO-66-NH2 even after calcination. Additionally, the in-situ generated defects and oxygen vacancies in the ZrO2/Pt heterostructure during the calcination process significantly enhance its electrical conductivity. As a result, the as-prepared ZrO2/Pt heterostructure exhibits superior electrochemical performance (η10 = 38 mV) in hydrogen evolution reactions (HER) compared to the state-of-the-art commercial platinum on carbon support (Pt/C) electrocatalyst (η10 = 56 mV). This study highlights the pivotal role of metal-organic frameworks (MOFs)-based material in fabricating advanced electrocatalyst for HER, with the exceptional HER activity of ZrO2/Pt offering promising prospects for green hydrogen production.
Original language | English |
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Pages (from-to) | 825-833 |
Number of pages | 9 |
Journal | International Journal of Hydrogen Energy |
Volume | 106 |
DOIs | |
State | Published - 6 Mar 2025 |
Keywords
- Facile approach
- Green hydrogen
- HER
- Strong metal-support interaction
- ZrO/Pt heterostructure
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Fuel Technology
- Condensed Matter Physics
- Energy Engineering and Power Technology