Hydrogen generation over Ni@Pd NCs through an active H-exchange from formic acid-water system

The use of Formic acid as an alternative to fossil fuels is promising, both from economical and ecological standpoints, and has received great of attention owing to its inherently superiority in recent decades. Nevertheless, efficient and low-cost solid catalyst for formic acid dehydrogenation at room temperature still constitutes a biggish challenge. Moreover, comparing to increase the catalytic performance of catalysts, very little attention payed to the kinetic mechanism of dehydrogenation reaction because of the lack of effective characterization artifice. Here, the as-prepared Ni@Pd nanoparticles by a sequential reduction process can be useful catalyst for formic acid decomposition at room tempera-ture without a promoter. Thanks to the effective catalyst and isotope distribution tech-nique, preliminary mechanistic results firstly reveal that hydrogen is obtained via a H -atom recombination on isolated sites after the proton exchange randomly between acti-vated H and solvent.(c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

Automated summary

The use of formic acid as an alternative fuel shows promise, but finding an efficient and low-cost solid catalyst for formic acid dehydrogenation at room temperature remains a challenge. Additionally, the lack of effective characterization techniques has limited the study of the kinetic mechanism of the dehydrogenation reaction.