Saturday, 10 December 2016

On-demand Hydrogen Production from Organosilanes Using Heterogeneous Gold Catalysts

Source: "On-demand Hydrogen Production from Organosilanes at Ambient Temperature Using Heterogeneous Gold Catalysts"; Mitsudome, T. et al. On-demand Hydrogen Production from Organosilanes at Ambient Temperature Using Heterogeneous Gold Catalysts. Sci. Rep. 6, 37682; doi: 10.1038/srep37682 (2016); Published Online: 24 November 2016;

Abstract:

An environmentally friendly (“green”), H2-generation system was developed that involved hydrolytic oxidation of inexpensive organosilanes as hydrogen storage materials with newly developed heterogeneous gold nanoparticle catalysts. The gold catalyst functioned well at ambient temperature under aerobic conditions, providing efficient production of pure H2. The newly developed size-selective gold nanoparticle catalysts could be separated easily from the reaction mixture containing organosilanes, allowing an on/off-switchable H2-production by the introduction and removal of the catalyst. This is the first report of an on/off-switchable H2-production system employing hydrolytic oxidation of inexpensive organosilanes without requiring additional energy.

Figure 1: TEM images and corresponding histograms for (a) Au/HAP-NC (0.5 wt%); (b) Au/HAP-NC (2 wt%); (c) Au/HAP-NC (3 wt%); (d) Au/HAP. (e) ADF-STEM image of Au/HAP-NC (0.5 wt%).

Read more at: http://www.nature.com/articles/srep37682