CAI Qiong, HUANG Zheng-hong, KANG Fei-yu. 超临界水和水蒸气活化制备酚醛树脂基活性炭的对比研究[J]. New Carbon Mater., 2005, 20(02): 122-128.
Citation: CAI Qiong, HUANG Zheng-hong, KANG Fei-yu. 超临界水和水蒸气活化制备酚醛树脂基活性炭的对比研究[J]. New Carbon Mater., 2005, 20(02): 122-128.

超临界水和水蒸气活化制备酚醛树脂基活性炭的对比研究

  • A new activation method, supercritical water activation (650℃, 32Pa), and a traditional method, steam activation (650℃), were used to prepare phenolic resin based activated carbons. Based on pore structure characterization of the samples by nitrogen adsorption and weight loss behavior of the starting materials by TG/DSC analysis, the effects of the two different activation methods and the degree of carbonization of the starting materials on the evolution of the pore structure of phenolic resin-based activated carbons were obtained. Results show that: (1) supercritical water activation benefits the development of mesoporosity, while steam activation benefits the development of microporosity; (2) activated carbons with high specific surface area and mesoporosity were obtained at a low degree of burn-off from phenolic resin-based carbons carbonized to a low degree.
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