【15 Industrial & Engineering Chemistry Research】 Striking influence about HZSM-5 content and nickel catalyst on catalytic carbonization of polypropylene and polyethylene into carbon nanomaterials
作者：Jiang Gong, Jingdong Feng, Jie Liu, Raheel Muhammad, Xuecheng Chen*, Zhiwei Jiang, etc.
關(guān)鍵字：polyethylene
論文來(lái)源：期刊
具體來(lái)源：Industrial & Engineering Chemistry Research 52(44) (2013) 15578-15588
發(fā)表時(shí)間：2013年
A one-pot approach was established to effectively convert polypropylene (PP) and linear low density polyethylene (LLDPE) into carbon nanomaterials (CNMs) including cup-stacked carbon nanotubes and carbon nanofibers under the combined catalysis of HZSM-5/NiO or HZSM-5/Ni2O3 at 700 °C. The effects of HZSM-5 content, a nickel catalyst, and the carbon precursor on the morphology, microstructure, phase structure, and thermal stability of CNMs were investigated with scanning electron microscopy, transmission electron microscopy (TEM), high-resolution TEM, X-ray diffraction, Raman spectroscopy, and thermal gravimetric analysis. The effect of HZSM-5 content on the degradation products of PP and LLDPE was analyzed by gas chromatography and gas chromatography-mass spectrometry. With increasing HZSM-5 content, the yields of light hydrocarbons and aromatics increased due to proton acid sites on the surface of HZSM-5 catalyzing cracking of PP or LLDPE degradation products. This one-pot approach provides a novel potential way to largely transform mixed waste polyolefin into high value-added CNMs.