Low-Temperature Reactions of HCl with Metal-Doped Carbon
Low-Temperature Reactions of HCl with Metal-Doped Carbon
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DOI：
10.1021/acs.energyfuels.8b01165
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发表时间：
2018-05
期刊：
影响因子：
5.3
通讯作者：
N. Tsubouchi;Y. Mochizuki;Yuji Shinohara;A. Kawashima;Y. Ohtsuka
中科院分区：
文献类型：
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作者：
N. Tsubouchi;Y. Mochizuki;Yuji Shinohara;A. Kawashima;Y. Ohtsuka
用O2活化酚醛树脂制备的模型炭，然后用钙、铜或锌浸渍，考察了在这一较低温度范围(100℃和300℃)内含各种金属的炭样的HCl脱附量之间的关系，并阐明了活性中心对HCl吸附的影响。结果表明，在100~300℃的温度范围内，HCl与碳之间的相互作用增强，并且这些金属的掺杂增加了HCl的反应量。在100℃和300℃下得到了不同的HCl浓度分布，在较低的温度(100℃)下，HCl的总体降幅较大。结果表明，300℃时反应的HCl质量依次增加，100℃时反应的HCl质量依次增加；300℃时反应的HCl明显比100℃时反应的稳定。有机氯化合物、化学吸附的HCl和无机氯化物均存在于碳表面。
A model carbon prepared from phenolic resin was activated with O2 and then impregnated with Ca, Cu, or Zn to examine the relationship between the amount of HCl desorbed from carbon samples containing various metals in this lower temperature range (100 and 300 °C) and clarified the effect of active sites on HCl adsorption. The results showed that interactions between HCl and carbon were enhanced at temperatures in the range of 100–300 °C and that the amount of HCl reacted was increased by doping with these metals. The different HCl concentration profiles at 100 and 300 °C were obtained with a greater overall decrease in HCl at the lower temperature (100 °C). Those are attributed to increased physical adsorption of HCl at 100 °C. The mass of HCl reacted increased in the order of Cu < Ca < Zn at 300 °C and Ca < Cu < Zn at 100 °C, and HCl reacted at 300 °C was evidently more stable than that reacted at 100 °C. Organochlorine compounds, chemisorbed HCl, and inorganic chlorides were all identified on the carbon...