%R 10.1007/s12649-015-9460-6 %J Waste and Biomass Valorization %T Impact of Ball-Milling Pretreatment on Pyrolysis Behavior and Kinetics of Crystalline Cellulose %A A.S. Khan %A Z. Man %A M.A. Bustam %A C.F. Kait %A M.I. Khan %A N. Muhammad %A A. Nasrullah %A Z. Ullah %A P. Ahmad %L scholars7010 %D 2016 %V 7 %X Effect of ball-milling pretreatment on pyrolysis characteristics of cellulose was studied by thermogravimetric analysis (TGA) at four different heating rates; 5, 10, 20, and 40 K/min. Variation in the thermal stability and activation energy of cellulose with ball-milling were calculated by TGA Kinetics using Kissinger, Kissinger�Akahira�Sunose, Flynn�Wall�Ozawa and Starink model free methods. Results demonstrated that ball-milling reduced the thermal stability and activation energy of cellulose. The original and ball-milled cellulose were thoroughly characterized by Fourier-transform infrared spectroscopy, X-ray diffraction, and Scanning electron microscopy. X-ray diffraction analysis revealed that ball-milling decreased the crystallinity of cellulose from 93 to 51 . The results suggested that ball-milling pretreatment led to effective disruption of crystalline cellulose to amorphous cellulose. It is, therefore, concluded that the ball-milled cellulose can easily become a useful source of chemicals and energy than crystalline cellulose. © 2015, Springer Science+Business Media Dordrecht. %N 3 %I Springer Netherlands %O cited By 55 %P 571-581 %K Activation energy; Cellulose; Chemical activation; Crystalline materials; Fourier transform infrared spectroscopy; Milling (machining); Pyrolysis; Scanning electron microscopy; Thermodynamic stability; Thermogravimetric analysis; X ray diffraction analysis, Amorphous cellulose; Crystalline cellulose; Crystallinities; Crystallinity index; Model-free method; Pre-Treatment; Pyrolysis characteristics; Thermokinetics, Ball milling, Activation Energy; Cellulose; Coefficients; Crystallinity; Grinding