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Enhanced Fischer-Tropsch synthesis performance of iron-based catalysts supported on nitric acid treated N-doped CNTs

机译：硝酸处理的氮掺杂碳纳米管上负载的铁基催化剂的费-托合成性能增强

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摘要

Iron-based catalysts supported on N-doped CNTs (NCNTs) treated by various concentrations of nitric acid for Fischer-Tropsch synthesis (FTS) were investigated. An improved catalytic performance for the iron catalyst supported on acid treated NCNTs was obtained and the suitable nitric acid concentration was 10 M. The physiochemical properties of the NCNTs and the corresponding catalysts were characterized by BET, TEM, XRD, XPS, TGA and H-2-TPR. The acid treatment removed the impurity and amorphous carbon, damaged the bamboo-like structure and increased the number of oxygen-containing functional groups and graphitization degree on the NCNTs. The more iron particles located inside the channels of NCNTs, the better catalytic FTS performance due to high dispersion and reducibility. (C) 2015 Elsevier B.V. All rights reserved.
机译：研究了在费托合成（FTS）中用各种浓度的硝酸处理的N掺杂CNT（NCNT）上负载的铁基催化剂。酸处理的NCNTs上负载的铁催化剂的催化性能得到了改善，硝酸的合适浓度为10M。通过BET，TEM，XRD，XPS，TGA和H-表征了NCNTs和相应催化剂的理化性质。 2-TPR。酸处理除去了杂质和无定形碳，破坏了竹样结构，并增加了NCNTs上含氧官能团的数量和石墨化程度。由于高分散性和可还原性，位于NCNT通道内的铁颗粒越多，催化FTS的性能越好。 （C）2015 Elsevier B.V.保留所有权利。

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  • 来源
    《Applied Surface Science》 |2015年第30期|643-650|共8页
  • 作者

    Li Zhenhua; Liu Renjie; Xu Yan; Ma Xinbin;

  • 作者单位

    Tianjin Univ, Sch Chem Engn & Technol, Minist Educ, Key Lab Green Chem Technol, Tianjin 300072, Peoples R China|Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China;

    Tianjin Univ, Sch Chem Engn & Technol, Minist Educ, Key Lab Green Chem Technol, Tianjin 300072, Peoples R China|Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China;

    Tianjin Univ, Sch Chem Engn & Technol, Minist Educ, Key Lab Green Chem Technol, Tianjin 300072, Peoples R China|Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China;

    Tianjin Univ, Sch Chem Engn & Technol, Minist Educ, Key Lab Green Chem Technol, Tianjin 300072, Peoples R China|Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Fischer-Tropsch synthesis; Iron based catalyst; N-doped CNTs; Nitric acid concentration;

    机译：费-托合成;铁基催化剂;N掺杂碳纳米管;硝酸浓度;

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