Effects of Cerium Oxide and Ferrocene Nanoparticles Addition As Fuel-Borne Catalysts on Diesel Engine Particulate Emissions: Environmental and Health Implications

• DOI: 10.1021/acs.est.7b00920
• Publication Date: 2017-03-28T00:43:37Z
• Authors: Zhi-Hui Zhang; Rajasekhar Balasu...
• Keywords: Air Pollutants; 01 natural sciences; 7. Clean energy; 13. Climate action; 11. Sustainability; Humans; Nanoparticles; Particulate Matter; Polycyclic Aromatic Hydrocarbons; Gasoline; Vehicle Emissions; 0105 earth and related environmental sciences

This study systematically examined the potential impacts of doping CeO2 and Fe(C5H5)2 nanoparticles as fuel-borne catalysts (FBCs) to ultralow sulfur diesel (ULSD) fuel on physical, chemical toxicological characteristics particulate matter (DPM). The FBCs-doped fuels are effective in promoting soot oxidation reducing DPM mass emissions, but lead a significant increase total particle counts due formation self-nucleated metallic nanoparticles. Compared undoped ULSD, result higher concentrations particle-phase polycyclic aromatic hydrocarbons (PAHs) n-alkanes, fractions organic carbon (OC) water-soluble (WSOC) particles, show slight alterations nanostructure, reduce ignition temperature activation energy. Exposure human-type II cell alveolar epithelial cells (A549) derived from shows decrease viability global gene expression with broad range biochemical pathways. overall variations mainly caused by catalytic combustion process, related type, properties contents FBCs used well engine operating conditions. Environmental health implications highlighted.