Thermal & chemical analyses of hydrothermally derived carbonmaterials from corn starch
Hydrothermal and pyrolytic carbonization were used in this study to prepare a range of carbonaceousmaterials fromcorn starch powder.The objective of the studywas to investigate the relationship betweenmicrostructures of the hydrothermally carbonized materials synthesized by a two-step carbonization process and their thermophysical and thermochemical properties.Differences in thermal behavior,as observed by thermogravimetric measurements conducted in air,were investigated by supplementary studies using elemental and proximate analysis,Fourier transform infrared spectrometry(FTIR),X-ray photoelectron spectroscopy(XPS)characterisation and weight loss kinetic modeling.The results indicated that the degree of the aromatization of obtained materials with higher carbon contents could be increased by subsequent annealing at higher temperatures.The resulting materials with different carbon skeletons displayed different kinetic behavior upon heating.Kineticmodeling of the thermogravimetric data revealed a lowtemperature and a high temperature combustion regionwith different kinetics parameters,thus demonstrating the potential of hydrothermal carbonization(HTC)as a synthesis strategy for fine-tuned functional high-purity combustion fuel preparation.
Hydrothermal carbonization Thermogravimetric analysis Kinetics Microstructure Pyrolysis
Min Zhao Bin Li Jia-Xiao Cai Chuan Liu K.G.McAdam Ke Zhang
Zhengzhou Tobacco Research Institute of CNTC,Zhengzhou 450001,China Group Research & Development,Regents Park Road,Southampton SO15 8TL,UK Zhengzhou Tobacco Research Institute of CNTC,Zhengzhou 450001,China;School of Materials Science and
国内会议
北京
英文
43-49
2017-11-01（万方平台首次上网日期，不代表论文的发表时间）