Our paper reporting dynamic behavior of Rh nanoparticles by operand XAS was published in Journal of the American Chemical Society (ACS).

「Dynamic Behavior of Rh Species of Rh/Al2O3 Model Catalyst During Three-Way Catalytic Reaction - An Operando XAS Study」
Asakura, Hiroyuki; Hosokawa, Saburo; Ina, Toshiaki; Kato, Kazuo; Nitta, Kiyofumi; Uera, Kei; Uruga, Tomoya; Miura, Hiroki; Shishido, Tetsuya; Ohyama, Jun-ya; Satsuma, Atsushi; Sato, Katsutoshi; Yamamoto, Akira; Hinokuma, Satoshi; Yoshida, Hiroshi; Machida, Masato; Yamazoe, Seiji; Tsukuda, Tatsuya; Teramura, Kentaro; Tanaka, Tsunehiro
Journal of the American Chemical Society, 2018, 140 (1), pp 176-184 DOI: 10.1021/jacs.7b07114
The dynamic behavior of Rh species in 1 wt% Rh/Al2O3 catalyst during the three-way catalytic reaction was examined using a micro gas chromatograph, a NOx meter, a quadrupole mass spectrometer, and time-resolved quick X-ray absorption spectroscopy (XAS) measurements at a public beamline for XAS, BL01B1 at SPring-8, operando. The combined data suggest different surface rearrangement behavior, random reduction processes, and autocatalytic oxidation processes of Rh species when the gas is switched from a reductive to an oxidative atmosphere and vice versa. This study demonstrates an implementation of a powerful operando XAS system for heterogeneous catalytic reactions and its importance for understanding the dynamic behavior of active metal species of catalysts.