The catalytic behaviour of noble metal nanoparticles, have been explored in various organic synthesis, which it is important for environmental protection, such as reduction of nitroarenes, CO oxidation, etc. Due to their high surface-to-volume ratio and high surface energy [1, 2]. The catalytic activity of noble metal NPs is mainly dependent on their size, shape, crystallinity, and the surface state. Since the potential binding sites presented by the atoms situated at the surface of NPs the catalytic properties have been changed with different size and shapes. The synthesis of gold nanorods in high yield and monodispersity has been developed, but only a few papers have been published related to their applications. The biological applications of high aspect ratio nanoparticles have been reviewed [3]. In this present report we demonstrated the efficiency of a novel designed gold nanorods loaded Fe3O4@Carbon core-shell nanocatalyst (FC-Au NRs) in the fast catalysis reduction of aromatic nitro-compounds. Herein, the Fe3O4@Carbon MNPs were first prepared using a glucose-based hydrothermal process, and the seed-less mediate as-synthesized gold NRs was then loaded on carbonaceous shell functional groups. The effect of several environmental parameters including initial nitroarene concentration, and NaBH4 concentration as reducing agent on rate of 4-nitrophenol were investigated. Figure 1. Schematic pathway ofFe3O4@C/Au NRs catalyzed reduction reaction. References [1] G. Schmid, in Nanoscale Materials in Chemistry, John Wiley & Sons, Inc. (2002) 15. [2] C. Zhu, L. Han, P. Hu and S. Dong, Nanoscale, 4(2012) 1641.

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