Preparation of Pt/MgAl2O4 Decalin Dehydrogenation Catalyst for Chemical Hydrogen Storage Application

Chemical hydrogen storage is an important area for hydrogen fuel cell applications while catalyst is the key to develop effective hydrogen production process for fuel cell applications. Platinum is a superior catalyst for decalin dehydrogenation, and support modification can improve the catalysis. Effects of different supports, preparation methods and Mg/Al molar ratio on the material properties and the catalytic performance of the Pt catalysts were thus systematically investigated. The results showed that the MgAl2O4 support was more suitable for improving Pt dispersion and forming smaller Pt nanoparticles than the others. The Pt/MgAl2O4 with Mg/Al molar ratio of 0.5 prepared by alcohol-heating method demonstrated superior performance, which is closely related to the Pt nanoparticle size and reaction state. Initial ratio of decalin to catalyst also played an important role in the activity and was achieved the optimal ratio in the liquid-film state.{GRAPHIS }

Automated summary

Chemical hydrogen storage is important for hydrogen fuel cell applications, and catalysts play a crucial role in developing effective hydrogen production processes. Platinum is a superior catalyst for decalin dehydrogenation, and modifying the support can enhance catalysis. The study systematically investigated the effects of different supports, preparation methods, and Mg/Al molar ratio on the material properties and catalytic performance of Pt catalysts. The results showed that the MgAl2O4 support was more suitable for improving Pt dispersion and forming smaller Pt nanoparticles. Pt/MgAl2O4 with a Mg/Al molar ratio of 0.5, prepared using the alcohol-heating method, exhibited superior performance, which was closely related to the Pt nanoparticle size and reaction state. The initial ratio of decalin to catalyst also played an important role in the activity and achieved optimal performance in the liquid-film state.