The invention discloses an
oxygen-free circulating flow liquid
pool for high-resolution X-
ray diffraction (XRD) of a horizontal
goniometer and a characterization method for in-situ detection structure evolution in an electro-
catalysis process. The invention aims to solve the problems that in the prior art, an in-situ
pool cannot be vertically mounted,
oxygen control is insufficient, the characterization dimension is single and the like, and functional film
microstructure evolution in the
oxygen-sensitive electrochemical process cannot be accurately tracked. The liquid
pool comprises a vertical installation
adaptation structure, an elastic conductive piece and a liquid-
electricity isolation piece are arranged in a sealing screw rod, a 10-100-
micrometer Kapton film is used for an X-
ray window, and a
conductivity detection interface is arranged; the method comprises the steps of
cell body
assembly leakage detection,
electrolyte inert gas
deoxygenation circulation, XRD light path calibration, synchronous application of an external
electric field and collection of electrochemical, XRD and
conductivity data. According to the invention, angstrom-
level structure monitoring, thorough oxygen isolation and multi-dimensional characterization are realized, a thin film / block /
powder sample deposited on the substrate is compatible, the technical blank is filled, and research and development of devices in the fields of energy and
electronics are assisted.