Matching Relationship Between Carbon Material and Pd Precursor

Highly Efficient Phenol Hydrogenation to Cyclohexanone over Pd@CN-rGO in Aqueous Phase

“…33 On the contrary, there is a typical peak of metal Pd at 40.3°in the XRD pattern of Pd1.6/rGO (Figure S1d), which may be because the Pd NPs disperse worse on rGO than CN-rGO. 37 The CO pulse chemisorption results prove the above conclusion, the Pd dispersion of Pd@CN-rGO is as high as 24%, more than 6 times that of Pd1.6/rGO (Table 2), and the rGO content has no significant influence on the Pd dispersion. The higher Pd dispersion of Pd@CN-rGO should be caused by the ZIF-derived CN.…”

Insights into the Solvent Effect on the Synthesis of Pd@PC-COFs for Phenol Hydrogenation

“…While no obvious Pd peaks are observed in the other catalysts. This difference may be due to the high Pd content of the catalysts prepared with alcohol solvents as discussed below, and the weak reducibility of alcohol solvents to Pd. , The Fourier transform infrared (FT-IR) spectra of six typical catalysts, that is, Pd@PC-COF-Pen, Pd@PC-COF-PE, Pd@PC-COF-NBA, Pd@PC-COF-EA, Pd@PC-COF-Dio, and Pd@PC-COF-MeOH, are shown in Figure B. Compared with the FT-IR spectrum of PC-COFs, the FT-IR spectra of Pd@PC-COFs do not change significantly, indicating that the introduction of active component Pd using wet impregnation with different solvents does not obviously vary the groups of the PC-COFs.…”

Enhanced selectivity to olefins in the hydrodechlorination of trichloromethane using Ag-Pd on activated carbon catalysts

“…Table 1 Figure 2 shows the XRD patterns of the three reduced catalysts, where it can be clearly observed the presence of two broad peaks centered at around 26. These peaks associated to metallic Pd are not observed in the XRD pattern of AgPdCl/C catalyst, suggesting a high dispersion and consequently a lower palladium crystal sizes due to the utilization of PdCl2 precursor in the synthesis of this catalyst [46].…”

“…It is worth to mention that AgPdN/C catalyst yielded the lowest ABET and Vmicro values, probably due to larger metal particles associated to the use of nitrate as Pd precursor. It has been reported that PdCl2 leads to metal particles with higher dispersion than Pd(NO3)2, due to the stronger interaction of this last with the activated carbon surface [46,47].…”