Palladium dissociates molecular hydrogen easily through surface adsorption and low activation energy.
Multiple studies demonstrate that palladium readily adsorbs and dissociates molecular hydrogen due to favorable surface energetics and low activation barriers.
The retrieved papers consistently support the well-established scientific fact that palladium surfaces facilitate the dissociative adsorption of molecular hydrogen, with specific studies detailing the thermodynamics, activation energies, and kinetic pathways involved.
K. Namba, S. Ogura, S. Ohno, Wenqi Di, Koichi Kato, M. Wilde, I. Pletikosić, P. Pervan, M. Milun, K. Fukutani. Acceleration of hydrogen absorption by palladium through surface alloying with gold. 2018. https://doi.org/10.1073/pnas.1800412115
Paper 0 discusses hydrogen transport across palladium surfaces and chemisorbed surface hydrogen states.
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Michael Schwarzer, Nils Hertl, F. Nitz, D. Borodin, Jan Fingerhut, T. Kitsopoulos, A. Wodtke. Adsorption and Absorption Energies of Hydrogen with Palladium. 2022. https://doi.org/10.1021/acs.jpcc.2c04567
Paper 1 reports dissociative adsorption energies and classical dissociative binding energies for hydrogen on palladium surfaces.
Lucy J T Metzroth, E. Miller, A. Norman, S. Yazdi, G. M. Carroll. Accelerating Hydrogen Absorption and Desorption Rates in Palladium Nanocubes with an Ultrathin Surface Modification.. 2021. https://doi.org/10.1021/acs.nanolett.1c02903
Paper 3 notes that palladium naturally acts as an active site for hydrogen absorption and dissociation, though surface modifications can further optimize the kinetics.
W. Auer, H. Grabke. The Kinetics of Hydrogen Absorption in Palladium (α‐ and β‐phase) and Palladium‐Silver‐Alloys. 1974. https://doi.org/10.1002/BBPC.19740780110
Paper 5 confirms that the dissociation of hydrogen molecules on the palladium surface is the key rate-determining step during absorption.
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