Journal
MOLECULES
Volume 27, Issue 17, Pages -Publisher
MDPI
DOI: 10.3390/molecules27175736
Keywords
metal-organic framework; porphyrin; nanosheet; palladium-zinc intermetallic; carbonization; selective hydrogenation; acetylene
Funding
- American Chemical Society Petroleum Research Fund
- ACS PRF [57596-UR5]
- Welch Foundation [T-0014]
- Key R&D and Promotion Special Project (Science and Technology) of Henan Province, China [212102210214]
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Novel zinc-palladium-porphyrin bimetal metal-organic framework (MOF) nanosheets were synthesized and transformed into carbon-supported Pd-Zn intermetallics with different Pd: Zn atomic ratios. Pd3.9Zn6.1 showed the best catalytic performance for selective hydrogenation.
Novel zinc-palladium-porphyrin bimetal metal-organic framework (MOF) nanosheets were directly synthesized by coordination chelation between Zn(II) and Pd(II) tetra(4-carboxyphenyl) porphin (TCPP(Pd)) using a solvothermal method. Furthermore, a serial of carbon nanosheets supported Pd-Zn intermetallics (Pd-Zn-ins/CNS) with different Pd: Zn atomic ratios were obtained by one-step carbonization under different temperature using the prepared Zn-TCPP(Pd) MOF nanosheets as precursor. In the carbonization process, Pd-Zn-ins went through the transformation from PdZn (650 degrees C) to Pd3.9Zn6.1 (similar to 950 degrees C) then to Pd3.9Zn6.1/Pd (1000 degrees C) with the temperature increasing. The synthesized Pd-Zn-ins/CNS were further employed as catalysts for selective hydrogenation of acetylene. Pd3.9Zn6.1 showed the best catalytic performance compared with other Pd-Zn intermetallic forms.
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