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. 2018 Sep 7;3(9):10843-10850.
doi: 10.1021/acsomega.8b01141. eCollection 2018 Sep 30.

Ultrafine Pd Nanoparticles Anchored on Nitrogen-Doping Carbon for Boosting Catalytic Transfer Hydrogenation of Nitroarenes

Longkang Zhang  1 , Xiaotong Liu  1 , Xin Zhou  1 , Shutao Gao  1 , Ningzhao Shang  1 , Cheng Feng  1 , Chun Wang  1
Affiliations

Ultrafine Pd Nanoparticles Anchored on Nitrogen-Doping Carbon for Boosting Catalytic Transfer Hydrogenation of Nitroarenes

Longkang Zhang et al. ACS Omega. .

Abstract

The catalytic performance of metal particles is closely related to the particle size. In this article, ultrafine palladium nanoparticles anchored on nitrogen-doping carbon support (Pd/N-XC72R) were fabricated, wherein the N-XC72R was prepared through low-temperature annealing of Vulcan XC72R carbon with urea at 300 °C. Nitrogen dopant on the surface of carbon support can remarkably strengthen the affinity of the metal nanoparticles onto the support. Compared with the Vulcan XC-72R-supported Pd catalyst, the prepared Pd/N-XC72R delivered superior catalytic activity for the transfer hydrogenation of nitroarenes with formic acid as the hydrogen donor at ambient temperature. Our strategy may provide an effective and feasible approach to fabricate N-functionalized carbon materials and construct high-performance ultrasmall metal nanoparticle heterogeneous catalysts.

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Conflict of interest statement

The authors declare no competing financial interest.

Figures

Scheme 1
Scheme 1. Preparation Progress of Pd/N-XC72R
Figure 1
Figure 1
TEM (a,b) and STEM images (c) of Pd/N-XC72R-6-300 catalyst and the corresponding size distribution of Pd nanoparticles (d), EDX mappings of Pd/N-XC72R-6-300: Pd, N, O, and C (e–h).
Figure 2
Figure 2
XPS data of Pd/N-XC72R-6-300 catalyst. Survey spectrum (a), high-resolution spectrum of C 1s (b), N 1s (c), and Pd 3d (d).
Figure 3
Figure 3
(a) XRD images of different supports, (b) FT-IR spectra of XC72R (top) and N-XC72R-6-300 (bottom), (c,d) XRD images and the N2 adsorption–desorption isotherms of XC72R, Pd/XC72R, N-XC72R-6-300, and Pd/N-XC72R-6-300.
Figure 4
Figure 4
Mechanism of hydrogenation of nitroaromatics over Pd/N-XC72R.
See this image and copyright information in PMC

References

    1. Hutchings G. J.; Kiely C. J. Strategies for the synthesis of supported gold palladium nanoparticles with controlled morphology and composition. Acc. Chem. Res. 2013, 46, 1759–1772. 10.1021/ar300356m. - DOI - PubMed
    1. Campbell C. T. PHYSICS: The Active Site in Nanoparticle Gold Catalysis. Science 2004, 306, 234–235. 10.1126/science.1104246. - DOI - PubMed
    1. Shang L.; Bian T.; Zhang B.; Zhang D.; Wu L.-Z.; Tung C.-H.; Yin Y.; Zhang T. Graphene-supported ultrafine metal nanoparticles encapsulated by mesoporous silica: Robust catalysts for oxidation and reduction reactions. Angew. Chem., Int. Ed. 2014, 53, 250–254. 10.1002/anie.201306863. - DOI - PubMed
    1. Zhu Q.-L.; Xu Q. Immobilization of ultrafine metal nanoparticles to high-surface-area materials and their catalytic applications. Chem 2016, 1, 220–245. 10.1016/j.chempr.2016.07.005. - DOI
    1. Dhakshinamoorthy A.; Garcia H. Catalysis by metal nanoparticles embedded on metal-organic frameworks. Chem. Soc. Rev. 2012, 41, 5262–5284. 10.1039/c2cs35047e. - DOI - PubMed