Chem Mater 2011, 23:1225–1231.CrossRef 20. Hu M, Reboul J, Furukawa S, Torad NL, Ji Q, Srinivasu P, Ariga K, Kitagawa S, Yamauchi Y: Direct carbonization of Al-based porous coordination polymer for synthesis of nanoporous carbon. J Am Chem Soc 2012, 134:2864–2867.CrossRef 21. Liu K, Luo Y, Jia D: One-step synthesis

of metal nanoparticle decorated graphene by liquid phase exfoliation. J Mater Chem 2012, 22:20342–20352.CrossRef 22. Choi SM, Seo MH, Kim HJ, Kim WB: Synthesis and characterization of graphene-supported metal nanoparticles by impregnation method with heat treatment in H 2 Y 27632 atmosphere. Synth Meta 2011, 161:2405–2411.CrossRef 23. He HK, Gao C: Graphene Nanosheets GSK3235025 clinical trial decorated with Pd, Pt, Au, and Ag nanoparticles: synthesis, characterization and catalysis applications. Sci China Chem 2011, 54:397–404.CrossRef 24. Marguardt D, Vollmer C, Thomann R, Steurer P, Mulhaupt R, Redel E,

Janiak C: The Use of microwave irradiation for the easy synthesis of graphene-supported transition metal nanoparticles in ionic liquids. Carbon 2011, 49:1326–1332.CrossRef 25. Park S, Ruoff RS: Chemical methods for the production of graphene. Nature Nanotchol 2009, 4:217–224.CrossRef 26. Yung TY, Lee JY, Liu LK: Nanocomposite for methanol oxidation: synthesis and characterization of cubic Pt nanoparticles on graphene sheets. Sci Tech Adv Mater 2013, 14:035001.CrossRef 27. Richter K, Bäcker T, Mudring A-V: Facile, environmentally friendly fabrication of porous silver monoliths using the ionic liquid N -(2-hydroxyethyl) ammonium-formate. Chem Commun mTOR activation 2009, 3:301–303.CrossRef

28. Zhou XZ, Huang X, Qi XY, Wu SX, Xue C, Boey FYC, Yan QY, Chen P, Zhang H: In Situ synthesis of metal nanoparticles on single-layer graphene oxide and reduced graphene oxide surfaces. J Phys Chem C 2009, 113:0842–10846. 29. Badano J, Lederhos C, L’Aregentière MQYP: Low metal catalysts used for the selective hydrogenation of styrene. Quim Nova 2010, 33:48–51.CrossRef Competing interests The authors Carbohydrate declare that they have no competing interests. Authors’ contributions LJU collected and analyzed the data and organized the figures. YTY organized and wrote the content of manuscript. LLK supervised the project and corrected the paper. LKL and YTY are the corresponding authors. All authors read and approved the final manuscript.”
“Background An extraordinary interest in the growth of thin metal layers on a semiconductor substrate is driven by the application of metal/semiconductor interfaces as ohmic contacts for electronic devices. In particular, the reaction of 3D transition metals (TMs) (such as Co, Ni, Fe) with different Si and Ge surfaces has attracted a great deal of attention on account of the importance of the resulting compounds to magnetic storage media [1–10].