A Process for Hydrogen Production from the Catalytic Decomposition of Formic Acid over Iridium—Palladium Nanoparticles

Materials

Mosaed S. Alhumaimess¹  Hamed M. Alshammari²  Gamal A. El-Hiti³  Obaid F. Aldosari⁴  Mohammad Hayal Alotaibi⁵  Abdulellah S. Alsolami⁵  Nuha A. Alotaibi⁵  Yahya A. Alzahrani⁵  Raja L. Alotaibi⁵ 

[1] Chemistry Department, College of Science, Jouf University, P.O. Box 2014, Sakaka 72351, Saudi Arabia;Chemistry Department, Faculty of Science, Ha’il University, P.O. Box 2440, Ha’il 81451, Saudi Arabia;Cornea Research Chair, Department of Optometry, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh 11433, Saudi Arabia;Department of Chemistry, College of Science, Majmaah University, P.O. Box 66, Majmaah 11952, Saudi Arabia;National Center for Petrochemicals Technology, King Abdulaziz City for Science and Technology (KACST), P.O. Box 6086, Riyadh 11442, Saudi Arabia;

关键词: formic acid decomposition;    hydrogen production;    renewable energy;    green chemistry;    catalysis;    iridium;   

DOI  :  10.3390/ma14123258

来源: DOAJ

【 摘 要 】

The present study investigates a process for the selective production of hydrogen from the catalytic decomposition of formic acid in the presence of iridium and iridium–palladium nanoparticles under various conditions. It was found that a loading of 1 wt.% of 2% palladium in the presence of 1% iridium over activated charcoal led to a 43% conversion of formic acid to hydrogen at room temperature after 4 h. Increasing the temperature to 60 °C led to further decomposition and an improvement in conversion yield to 63%. Dilution of formic acid from 0.5 to 0.2 M improved the decomposition, reaching conversion to 81%. The reported process could potentially be used in commercial applications.

【 授权许可】

Unknown