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Nanoporous Brown Coal Adsorbents Prepared by Alkaline Activation with Thermal Shock

机译：碱活化热冲击法制备的纳米多孔褐煤吸附剂

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摘要

The properties of nanoporous adsorbents prepared from brown coal by alkaline activation with thermal shock (800℃) were studied. The dependences of the value of S_(BET) and the volumes of macropores, mesopores, micropores, and pores to 1 nm in diameter in the nanoporous adsorbents on isothermal exposure time (to 90 min) and the nature of alkali (LiOH, NaOH, and KOH) were determined. The comparison of changes in pore volumes and pore size distributions indicated that the adsorbent with the most developed sub-nanopore structure was formed at the initial stage (to 10 min) of activation. In this material, about a half of the total pore volume consisted of pores with diameters to 1 nm.
机译：研究了褐煤通过热冲击（800℃）碱活化制备的纳米孔吸附剂的性能。纳米多孔吸附剂中S_（BET）的值以及大孔，中孔，微孔和孔的直径至1 nm的大小取决于等温暴露时间（至90分钟）和碱的性质（LiOH，NaOH，和KOH）被确定。孔体积和孔尺寸分布变化的比较表明，具有最发达的亚纳米孔结构的吸附剂是在活化的初始阶段（至10分钟）形成的。在这种材料中，总孔体积的大约一半由直径至1 nm的孔组成。

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  • 来源
    《Solid Fuel Chemistry》 |2012年第5期|289-294|共6页
  • 作者

    Yu. V. Tamarkina; V. A. Kucherenko; T. G. Shendrik;

  • 作者单位

    Litvinenko Institute of Physical Organic Chemistry and Coal Chemistry, National Academy of Sciences of Ukraine, Donetsk, Ukraine;

    Litvinenko Institute of Physical Organic Chemistry and Coal Chemistry, National Academy of Sciences of Ukraine, Donetsk, Ukraine;

    Litvinenko Institute of Physical Organic Chemistry and Coal Chemistry, National Academy of Sciences of Ukraine, Donetsk, Ukraine;

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