Structure determination of adsorbed hydrogen on a real catalystElectronic supplementary information (ESI) available: Experimental procedures and details of the ab initio calculations. See DOI: 10.1039/c001779e

Here we show that neutron diffraction can experimentally measure distances involving hydrogen on real catalysts. This method is applicable to adsorbed hydrogen (and other hydrogenous species) on crystalline, nanocrystalline or amorphous materials, supported and unsupported metals as well as oxides and works at ambient temperature and pressure. We show that neutron diffraction can directly measure distances involving hydrogen on real catalysts. This method is applicable to adsorbed hydrogen and hydrogenous species on crystalline or amorphous materials, oxides, supported and unsupported metals at ambient temperature and pressure.