Year: 2024
Type: conference-paper
Abstract: Hydrogen is a very important renewable energy for all the world. In this study it was aimed to highligth the H2 production via copper (II) oxide/graphene oxide (CuO/GO) nan°Composite from wastes containing aluminum (Al) with high energy density. The effects of nan°Composites such as CuO, copper (I) oxide (Cu2O), CuO-GO, Cu2O-GO on H2 production efficiencies were determined. The physic°Chemical properties of the CuO, Cu2O, CuO-GO, Cu2O-GO like their structural, morphological, and surface properties for H2 production from waste Al was analyzed with XRD and FTIR analyses. H2(g) productions were measured with a gas chromatography-mass spectrometry (GC-MS). During the experimental studies, important optimum reaction conditions for H2 production, such as temperature, pressure and reaction rate, were constantly controlled. For maximum H2 production (4897 mmol), the lifetime of electron hole pairs and nan°Composite diameter should be 350 ns, and 10 μm, respectively. The cation (Cd+2 and Fe+3) anion (Cl-1 and SO4 - 2 ) concentrations should be 0.01 mg/L and 0.1 mg/L while the Cu+2 persentage in the CuO/GO nan°Composite should be 3% in a nan°Composite concentration of 1.2 mg/L after 40 min photoreaction, at pH=8.0 and at Al+3 concentration of 200 mg/L. As a result of these, the high energy density of Al provides high H2 production with low Al+3 consumption. Finally, Al+3 water reaction results in zero greenhouse gas emissions while the Al+3 reactions are exothermic, and the aluminum hydroxide [Al(OH)3] can be converted to Al2O3, which Al+3 can be recovered.
DOI: 10.1117/12.3041777
Authors: DELIA TERESA SPONZA, RUKİYE ÖZTEKİN
Institution: Dokuz Eylül University
Language: English
Field: Energy
Domain: Physical Sciences
Open Access status: gold
OpenAlex ID: W4402888484