Microwave-Assisted Synthesis of Pt-Modified NaNbO 3 Nanowires for Enhanced Photocatalytic Hydrogen Production
Year: 2025
Type: article
Abstract: High Resolution Image Download MS PowerPoint Slide The urgent need to address global energy demands and mitigate climate change has driven research toward sustainable methods of hydrogen production. Photocatalytic water splitting represents a promising pathway for the generation of green hydrogen, provided that efficient, stable, and sustainably produced photocatalysts are developed. In this work, orthorhombic sodium niobate (NaNbO 3 ) nanowires were synthesized via a microwave-assisted hydrothermal route, a green, time-efficient, and energy-saving strategy that yielded high-surface-area structures. Platinum was incorporated as a cocatalyst to enhance charge separation and promote hydrogen evolution reaction (HER) activity. Comprehensive structural, morphological, and spectroscopic analyses revealed that Pt incorporation occurred at the molecular level, potentially altering the crystal growth orientation, increasing the surface area, and altering the band structure. While Pt loading reduced NaNbO 3 activity toward the oxygen evolution reaction (OER), it significantly boosted HER performance, achieving 1.26 mmol h –1 g –1 of H 2, over four times higher than pristine NaNbO 3, and comparable to the best reported systems, but obtained through a more sustainable synthesis route. These results highlight the combined benefits of microwave-assisted synthesis and Pt integration in the production of efficient photocatalysts for renewable hydrogen generation.
Source: ACS Omega
Institutions: Universidade Federal do ABC, Université Paris-Saclay
Language: English
Field: Energy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,935
Awards: G2093409800, Metal-Organic Frameworks (MOFs) as catalysts for sustainable oxidation of hydrocarbons derived from petroleum (methane and other alkanes) and natural (terpenes), G3690646728, G5142348755, G5684998849, G8136424857, Modulation of physical-chemical properties of metal semiconductors through the control of the parameters of microwave-assisted synthesis
OpenAlex ID: W4417020575