1. Palo DR, Dagle RA, Holladay JD (2007) Chem Rev 107:3992
2. Lu GQ, da Costa JCD, Duke M, Giessler S, Socolow R, Williams RH, Kreutz T (2007) J Colloid Interface Sci 314:589
3. Uhrig RE (2005) In: Proceedings of the international hydrogen energy congress and exhibition, IHEC 2005, Istanbul (Turkey), 13–15 July 2005
4. National Research Council (NRC) and National Academy of Engineering (NAE) (2004) The hydrogen economy: opportunities, costs, barriers, and R&D needs. National Academy Press, Washington, DC, cited on: Joseck F, Wang M, Wu Y (2008) Int J Hydrogen En 33:1445
5. Paiva AL, Malcata FX (1997) Chem Eng Sci 52:449