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Liu et al. Chem Synth 2023;3:24 https://dx.doi.org/10.20517/cs.2023.13 Page 11 of 14
Figure 6. (a) Generated V(H + CO ) versus time for the dehydrogenation of FA over Pd@NH -NC from the first to fifth cycles; (b) XRD
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patterns of Pd@NH -NC before and after five cycles; (c) TEM image of Pd@NH -NC after five cycles (inset: Particle size distributions);
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(d) XPS spectrum of Pd 3d for Pd@NH -NC after five cycles. TEM: transmission electron microscopy; XPS: X-ray Photoelectron
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Spectroscopy; XRD: X-ray diffraction.
Figure 7. A possible reaction mechanism for dehydrogenation of FA over Pd@NH -NC. FA: formic acid.
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