Recent advances of two-dimensional-based (2D) materials as electrocatalysts in DLFC: An overview

Fuel, Journal Year: 2025, Volume and Issue: 387, P. 134386 - 134386

Published: Jan. 17, 2025

Language: Английский

Enhancement of Hydrogen Production Using an Integrated Evacuated Tube Solar Collector and PEM Electrolyzer With Al₂O₃ and SiO₂ Hybrid Nanofluids

Engineering Reports, Journal Year: 2025, Volume and Issue: 7(2)

Published: Jan. 31, 2025

ABSTRACT The motivation for this study stems from the global demand clean energy solutions and limitations of conventional fluids in hydrogen production systems. By exploring hybrid nanofluids, research aims to enhance efficiency sustainability solar‐thermal applications. An evacuated tube solar collector (ETSC) with a polymer electrolyte membrane (PEM) electrolyzer efficiently harnesses production. ETSC's vacuum design minimizes heat loss, providing consistent thermal performance. This system enables generation, reducing emissions. investigated integration an ETSC PEM organic Rankine cycle (ORC) efficient Water as working fluid circuit resulted lower rates, prompting introduction Al 2 O 3 SiO nanoparticles at 50:50 ratio form enhanced nanofluid. resulting various volume concentrations (0.5%, 1%, 1.5%, 2%) nanofluid were tested, yielding gains 13.22%, 21.37%, 30.38%, 48.52%, respectively, compared water. ORC by 12.29% 0.5 vol.%, 23.10% 1 34.15% 1.5 48.40% vol.%. produced maximum yield 3105.6 g, overall 71.3% 2156.7 g demonstrating significant performance enhancements achieved nanofluids. results demonstrated effectiveness nanofluids enhancing output, underscoring their importance promoting sustainable technologies.

Language: Английский

A study on first hydrogenation mechanism and microstructural features of hyper-eutectic Mg–Ni hydrogen storage alloy

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 120, P. 110 - 118

Published: March 26, 2025

Language: Английский