Impeding Catalyst Sulfur Poisoning in Aqueous Solution by Metal–Organic Framework Composites,Small Methods

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Impeding Catalyst Sulfur Poisoning in Aqueous Solution by Metal–Organic Framework Composites
Small Methods ( IF 10.7 ) Pub Date : 2020-01-27 , DOI: 10.1002/smtd.201900890
Weiqiang Zhou ₁ , Wei Liang Teo ₁ , Soo Zeng Fiona Phua ₁ , Shibo Xi ₂ , Bo Chen ₃ , Deblin Jana ₁ , Dongdong Wang ₁ , Cheng Qian ₁ , Hou Wang ₁ , Hua Zhang ₄ , Yanli Zhao _{1,

3}

Affiliation

Deactivation of noble metal catalysts often occurs in many hydrocarbon reactions. In particular, sulfur species may cause significant poisoning of metal catalysts, even at minimal concentration, due to strong metal–S bond formation. In this work, hierarchical porous composites are prepared by integrating melamine foam with metal–organic frameworks, demonstrating excellent catalytic activity with anti‐sulfur poisoning properties. Several techniques are employed to elucidate the mechanism of anti‐sulfur poisoning. This study offers a functional composite system capable of acting as sulfur‐resistant noble metal catalysts in solution.

中文翻译：

金属-有机骨架复合材料阻碍水溶液中的催化剂硫中毒

贵金属催化剂的失活通常发生在许多烃反应中。特别是，由于形成强烈的金属-S键，即使在最低浓度下，硫物种也可能导致金属催化剂的严重中毒。在这项工作中，通过将三聚氰胺泡沫塑料与金属有机框架结合在一起，制备出了分层的多孔复合材料，显示出出色的催化活性和抗硫中毒特性。采用了几种技术来阐明抗硫中毒的机理。这项研究提供了一种功能性复合体系，能够在溶液中用作耐硫的贵金属催化剂。

更新日期：2020-01-27

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