عنوان مقاله [English]
Air pollution is one of the most important environmental pollution which origins from using fossil fuels like gasoline or diesel fuel. Nowadays using fuels like biodiesel with less emissions, in comparison with diesel, has contributed to reducing emissions produced by combustion of diesel fuel. Although pollutants such as carbon monoxide (CO), unburned hydrocarbon (UHC) and soot resulting from combustion of biodiesel are significantly less in comparison with diesel fuel, the low torque and power and high level of nitrogen-oxygen compounds are of disadvantages of using biodiesel as an alternative for diesel fuel. Application of nano-additives in such fuels is one way to reduce the emissions and to enhance performance of motor parameters. Consequently, in this paper different types of these nano-catalysts were discussed.