Synthesis of Extremely Large Mesoporous Activated Carbon and Its Unique Adsorption for Giant Molecules
Synthesis of Extremely Large Mesoporous Activated Carbon and Its Unique Adsorption for Giant Molecules
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DOI：
10.1021/cm950381t
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发表时间：
1996-02
影响因子：
8.6
通讯作者：
H. Tamai;T. Kakii;Yoshifumi Hirota;and Tomio Kumamoto;H. Yasuda
中科院分区：
文献类型：
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作者：
H. Tamai;T. Kakii;Yoshifumi Hirota;and Tomio Kumamoto;H. Yasuda
沥青(软化点85和280C)与1−3wt%的有机稀土金属络合物(如Ln(C5H5)3或Ln(AcAc)(Ln=Y，Yb))在930℃水蒸气活化，可使活性碳具有极高的中孔率，>；70%。得到的活性碳选择性地吸附大分子，如维生素B12、蓝色酸性90染料、葡聚糖、制霉菌素和腐植酸，反映了它们的巨大中孔体积。为了了解沥青中什么样的碳骨架适合产生高的介孔比，在稀土金属络合物的存在下，进行了一系列由萘、菲、菲、芘或茂与对二甲苯-α，α‘-二醇制备的缩合多核芳烃树脂的水蒸气活化。结果，含有菲、茂和芘的COPNA树脂产生了很大的中孔体积。
The steam invigoration of pitches (softening points 85 and 280 °C) homogenized with 1−3 wt % of organo rare-earth metal complexes such as Ln(C5H5)3 or Ln(acac) (Ln = Y, Yb) at 930 °C provided activated carbons with an extremely high mesopore ratio, >70%. The resulted activated carbon selectively adsorbs giant molecules such as vitamin B12, blue acid 90 dye, dextran, nystatin, and humic acid, reflecting their large mesopore volumes. To understand what kind of carbon skeleton in pitch is suited for generation of high mesopore ratio, the steam invigoration of a series of condensed polynuclear aromatics (COPNA) resins prepared from naphthalene, anthracene, phenanthrene, pyrene, or perylene and p-xylene-α,α‘-diol were conducted in the presence of rare-earth metal complexes. As a result, COPNA resins containing phenanthrene, perylene, and pyrene generated large mesopore volume.