SEARCH Articles Figures Tables Aromatic hydrocarbons, hydrogenation Aromatic hydrogen Aromatic hydrogenation Aromatics hydrogenation Hydrocarbons polynuclear Hydrocarbons polynuclear aromatics Hydrogen aromaticity Hydrogenated aromatics Hydrogenation hydrocarbons POLYNUCLEAR AROMATIC Polynuclear aromatic hydrocarbons Polynuclear aromatics Polynuclear aromatics aromatic