MoP/Hβ catalyst prepared by low-temperature auto-combustion for hydroisomerization of n-heptane
MoP/Hβ catalyst prepared by low-temperature auto-combustion for hydroisomerization of n-heptane
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DOI：
10.1016/j.catcom.2015.03.024
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发表时间：
2015-06
影响因子：
3.7
通讯作者：
Ping-Xiao Liu;Wan-Ting Chang;Jun Wang;Meng-Yao Wu;Yong-Xin Li
中科院分区：
文献类型：
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作者：
Ping-Xiao Liu;Wan-Ting Chang;Jun Wang;Meng-Yao Wu;Yong-Xin Li
采用低温自燃烧法制备了Hβ分子筛负载磷化钼（MoP/Hβ），并通过x射线衍射、扫描电镜、氮气吸附-解吸和程序升温解吸对其进行了表征。将合成的MoP/Hβ用作正庚烷加氢异构化的双功能催化剂，与传统浸渍法制备的MoP/Hβ催化剂相比，其活性明显提高。低温自燃烧法对催化性能的促进作用主要是由于合成的MoP/Hβ对β孔的堵塞较少，酸位较多。
Molybdenum phosphide supported on Hβ zeolite (MoP/Hβ) was prepared via the low-temperature auto-combustion method, and characterized by X-ray diffraction, scanning electron microscopy, nitrogen adsorption–desorption, and temperature-programmed desorption of NH3. The as-synthesized MoP/Hβ was employed as the bifunctional catalyst for the hydroisomerization ofn-heptane, and gave a much higher activity compared to the counterpart MoP/Hβ catalyst prepared by the traditional impregnation method. The promoted effect of the low-temperature auto-combustion method on the catalytic performance is attributed to the less blockage of β pores and more strong acid sites of the as-synthesized MoP/Hβ.