Nanosize-Induced Hydrogen Storage and Capacity Control in a Non-Hydride-Forming Element: Rhodium

Kobayashi H; Morita H; Yamauchi M; Ikeda R; Kitagawa H; Kubota Y; Kato K; Takata M

Journal of the American Chemical Society, Vol.133, No.29, 11034-11037, 2011

DOI10.1021/ja2027772 Export Citation

Nanosize-Induced Hydrogen Storage and Capacity Control in a Non-Hydride-Forming Element: Rhodium

Kobayashi H, Morita H, Yamauchi M, Ikeda R, Kitagawa H, Kubota Y, Kato K, Takata M

We report the first example of nanosize-induced hydrogen storage in a metal that does not absorb hydrogen in its bulk form. Rhodium particles with diameters of <10 nm were found to exhibit hydrogen-storage capability, while bulk Rh does not absorb hydrogen. Hydrogen storage was confirmed by in situ powder X-ray diffraction, solid-state (2)H NMR, and hydrogen pressure-composition isotherm measurements. The hydrogen absorption capacity could be tuned by controlling the particle size.