[1Fp01-09] Surface Science(SS2) Chemical Property

[1Fp04] In situ / operando spectroscopic measurements for understanding surface reactions under realistic conditions

*Ryo Toyoshima¹, Zi Wang¹, Yu Murano¹, Minami Obuchi¹, Tatsunosuke Manabe¹, Hiroshi Kondoh¹ (1. Department of Chemistry, Keio University)

Chemical reactions at surfaces have been widely used for chemical processes such as catalytic synthesis, energy conversion, environmental cleanup, sensor. Surface science techniques enable us to understand physicochemical fundamental processes on surfaces. However, one drawback of such surface science techniques is that the experiments are carried out under vacuum in many cases. Recent decades, some advanced experimental techniques have been developed to overcome such pressure gap problems, which are so called in situ and operando techniques. We have developed some in situ / operando experimental techniques for observing surface reactions on liquid/solid and gas/solid interfaces in energy range from infrared to soft X-ray. Here, we present our recent results obtained by ambient pressure X-ray photoelectron spectroscopy (AP-XPS) and X-ray absorption spectroscopy (AP-XAS).