Journal
RSC ADVANCES
Volume 10, Issue 16, Pages 9414-9419Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0ra01324b
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Funding
- National Natural Science Foundation of China [21503125]
- Natural Science Basic Research Plan in Shaanxi Province of China [2018JM2048]
- Open Project of Shaanxi Key Laboratory of Catalysis [SLGPT2019KF01-21]
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Precise design of catalytic supports is an encouraging technique for simultaneously improving the activity and stability of the catalyst. However, development of efficient heterogeneous catalysts for transforming CO2 into formic acid (FA) is still a big challenge. Herein, we report that Pd nanoparticles (NPs) based on a porous organic polymeric support containing amide and pyridine functional groups (AP-POP) can be an efficient catalyst for selective hydrogenation of CO2 to form formate with high efficiency even under mild reaction conditions (6.0 MPa, 80 degrees C). Electron density of the active Pd species modulated via the interaction between pyridine nitrogen and Pd play important roles in dramatic enhancement of catalytic activity and was indicated by X-ray photoelectron spectroscopy (XPS) along with CO chemisorption. This work provides an interesting and effective strategy for precise support design to improve the catalytic performance of nanoparticles.
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