On the lattice dilation of palladium nanoparticles and a new methodology for the quantification of interstitials

High-Quality In Situ X-ray Absorption Spectroscopy Monitoring of the Palladium Nucleation inside the 3D Printed Microfluidic Chip

“…Although a contraction of metal–metal distances can be expected for palladium nanoparticles, this result is in agreement with our previous studies of supported Pd particles with sizes from 1 to 10 nm on various supports. − The elongation of Pd–Pd distances can be caused by the presence of H or C atoms easily forming palladium hydrides , and carbides − and expanding the lattice. A similar explanation was presented by Ciapina and co-workers who concluded that H or C atoms can originate from catalytic decomposition of the organic compounds present during the synthesis …”

“…A similar explanation was presented by Ciapina and coworkers who concluded that H or C atoms can originate from catalytic decomposition of the organic compounds present during the synthesis. 34 At the same time, the total volume of the sample used during the experiment was around a few milliliters, and the total amount of Pd precursor spent for the whole experiment was less than 20 mg (in comparison, this is even less than one needs for a pellet of 13 mm for standard ex situ XAS measurement of Pd(II) acetate). It should also be noted that due to the low price and well-developed technology of 3D printing, such microchips can be easily tuned and optimized for any particular liquid system depending on the total absorption of the solvent itself, concentration of metal, etc.…”