Abstract

Pt catalysts supported on the commonly used supports Al₂O₃, SiO₂ and on mesostructured silicates SBA-15 and MCM-48 were examined in the dehydrogenation of decalin, that is the promising liquid organic hydrogen carrier (LOHC). Synthesized catalysts were studied by low-temperature nitrogen adsorption, temperature programmed reduction, high-resolution transmission electron microscopy. The catalysts are characterized by various dispersion of platinum. The activity of catalysts in decalin dehydrogenation decreases in the following order Pt/MCM-48 > Pt/SBA-15 > Pt/SiO₂ > Pt/Al₂O₃. Pt/MCM-48 catalyst allows to release hydrogen in the decalin amount of 5.7 wt% and can be considered the promising LOHC hydrogen storage technology.

Graphic Abstract

中文翻译：

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负载铂催化剂上催化脱氢从十氢化萘中释放氢

摘要

在萘烷脱氢过程中，对负载在常用载体Al ₂ O ₃，SiO ₂以及介孔结构的硅酸盐SBA-15和MCM-48上的Pt催化剂进行了研究，这是一种很有前途的液态有机氢载体（LOHC）。通过低温氮吸附，程序升温还原，高分辨率透射电子显微镜对合成的催化剂进行了研究。催化剂的特征在于铂的各种分散。萘烷脱氢中催化剂的活性按以下顺序降低：Pt / MCM-48> Pt / SBA-15> Pt / SiO ₂  > Pt / Al ₂ O ₃。Pt / MCM-48催化剂可以释放5.7 wt％的十氢化萘中的氢，可以认为是有前途的LOHC氢存储技术。

图形摘要