A simple synthesis route and characterisation of Co3Mo3C

Wang XH; Zhang MH; Li W; Tao KY

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A simple synthesis route and characterisation of Co3Mo3C

机译：Co3Mo3C的简单合成路线和表征

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A simple, one-step thermal decomposition method for the preparation of Co3Mo3C is reported in this paper. In this novel synthesis route, a mixed-salt precursor, containing Co(CH3COO)(2)center dot 4H(2)O, (HMT)(2)(NH4)(4)Mo7O24 center dot 2H(2)O (HMT = hexamethylenetetramine), and excess HMT is directly decomposed to the bimetallic carbide under. owing argon at 1023 K. The role of HMT in the preparation process has been investigated and a detailed reaction mechanism is proposed based on the experimental results. The bimetallic carbide is characterised by X-ray diffraction, scanning electron microscopy, high-resolution transmission electron microscopy, BET surface area measurement and X-ray photoelectron spectroscopy. Furthermore, the activity of the as-prepared Co3Mo3C is evaluated by a 3-methylpyridine hydrodenitrogenation (HDN) reaction. The catalyst produced from this method provides better reactivity compared to the Co3Mo3C catalyst prepared by the conventional temperature-programmed reduction method.

机译：本文报道了一种简单的一步热分解法制备Co3Mo3C的方法。在此新颖的合成路线中，包含Co（CH3COO）（2）中心点4H（2）O，（HMT）（2）（NH4）（4）Mo7O24中心点2H（2）O（HMT）的混合盐前体=六亚甲基四胺），过量的HMT直接分解为双金属碳化物。由于在1023 K下存在氩气，因此研究了HMT在制备过程中的作用，并根据实验结果提出了详细的反应机理。双金属碳化物的特征在于X射线衍射，扫描电子显微镜，高分辨率透射电子显微镜，BET表面积测量和X射线光电子能谱。此外，通过3-甲基吡啶加氢脱氮（HDN）反应评估所制备的Co3Mo3C的活性。与通过常规程序升温还原方法制备的Co3Mo3C催化剂相比，用此方法生产的催化剂具有更好的反应性。

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《Dalton transactions: An international journal of inorganic chemistry》 |2007年第44期|共6页
作者
Wang XH; Zhang MH; Li W; Tao KY;
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正文语种 eng
中图分类无机化学;
关键词
CARBOTHERMAL HYDROGEN REDUCTION; SUPPORTED MOLYBDENUM CARBIDE; METAL CARBIDE; NITRIDES; CATALYST; METHANE; COBALT; TEMPERATURE; SURFACE; BULK;

机译：碳氢还原;支撑的碳化钼;金属碳化物;氮化物;催化剂;甲醇;钴;温度;表面;大块;

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A simple synthesis route and characterisation of Co3Mo3C

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