In-situ X-ray spectrometry of reacting catalysts

Recently, a research group at Lawrence Berkeley National Laboratory reported an interesting application of X-ray absorption spectrometry to studies on the oxidation states of Co and CoPt nanoparticles in the presence of H₂ and O₂ at a controlled pressure. The key to the research lies in the specially developed gas reaction cell. For more information, see the paper, "In-situ X-ray Absorption Study of Evolution of Oxidation States and Structure of Cobalt in Co and CoPt Bimetallic Nanoparticles (4 nm) under Reducing (H₂) and Oxidizing (O₂) Environment", F. Zheng et al., Nano Lett., 11, 847 (2011).