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首页> 外文期刊>RSC Advances >Remarkable enhancement of the catalytic performance of molybdenum sulfide catalysts via an in situ decomposition method for higher alcohol synthesis from syngas
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Remarkable enhancement of the catalytic performance of molybdenum sulfide catalysts via an in situ decomposition method for higher alcohol synthesis from syngas

机译：通过原位分解方法显着提高硫化钼催化剂的催化性能，从合成气中的醇合成较高

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摘要

Nickel-containing and nickel-free molybdenum sulfide catalysts were prepared by an in situ thermal decomposition method. Their catalytic performance was investigated for higher alcohol synthesis from syngas. It is surprising that the Ni-promoted and the nickel-free catalysts prepared by in situ decomposition showed significantly higher activity featuring space-time-yield (STY, mg g ~(?1) h ~(?1) ) values of 520 and 510 respectively, while the ex situ method resulted in K–Ni–MoS _(2) -E and K–MoS _(2) -E catalysts with low activities featuring STY values of 370 and 170 mg g ~(?1) h ~(?1) , respectively. The remarkable difference in catalytic activities was due to the fact that the in situ decomposition method can result in disordered MoS _(2) domains and exposure to more coordinated unsaturated sites by the formation of smaller particles. In addition, the excellent catalytic performance was also associated with the combined impact of the in situ preparation method and Ni promotion.
机译：通过原位热分解方法制备含镍和无镍的硫化钼催化剂。研究了它们对合成气的较高酒精合成的催化性能。令人惊讶的是，通过原位分解制备的Ni-促进和无镍催化剂显示出具有空间 - 屈服的显着更高的活性（STY，Mg G〜（α1）H〜（α1））值为520和分别为510，而EX原位方法导致K-Ni-MOS _（2）-E和K-MOS _（2）-e催化剂，其催化剂具有370和170mg g〜（α1）H的浓度值。 〜（？1）分别。催化活性的显着差异是由于原位分解方法可以通过形成较小的颗粒导致MOS _（2）个结构域和暴露于更配位的不饱和位点。此外，优异的催化性能也与原位制备方法和Ni促进的综合影响有关。

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