A series of Ni- M ( M = Cu, Fe, Mo)-based alloys is synthesized using mechanochemical alloying of metal powders. The phase composition and structure of Ni-M samples are analyzed by powder X-ray diffraction. The catalytic activity of Ni- M B is studied in the synthesis of carbon nanofibers (CNFs) by decomposing a C 2 H 4 Cl 2 /H 2 /Ar mixture at 600 °C. It is shown that as a result of the interaction of alloys with the reaction medium, their rapid disintegration occurs with the formation of active particles catalyzing the growth of CNFs. The highest yield (22.2 g(CNF)/g(Ni)) is obtained for Ni-Mo alloy (in 2 h). The structural and morphological features of carbon materials are investigated. SEM and TEM data indicate the formation of carbon fibers with a pronounced segmented structure. The specific surface of the carbon material is 250–400 m 2 /g.

中文翻译：

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Ni-Cu、Ni-Fe 和 Ni-Mo 合金在氯代烃分解过程中制备碳纳米纤维的机械化学合成、结构和催化活性

使用金属粉末的机械化学合金化合成了一系列 Ni-M（M = Cu、Fe、Mo）基合金。Ni-M 样品的相组成和结构通过粉末 X 射线衍射分析。通过在 600 °C 下分解 C 2 H 4 Cl 2 /H 2 /Ar 混合物，在碳纳米纤维 (CNF) 的合成中研究了 Ni-MB 的催化活性。结果表明，由于合金与反应介质的相互作用，它们迅速分解，形成催化 CNF 生长的活性颗粒。Ni-Mo 合金的产量最高（22.2 g(CNF)/g(Ni)）（2 小时内）。研究了碳材料的结构和形态特征。SEM 和 TEM 数据表明形成了具有明显分段结构的碳纤维。碳材料的比表面积为250-400 m 2 /g。