Operando attenuated total reflection Fourier-transform infrared (ATR-FTIR) spectroscopy for water splitting

Abstract Operando attenuated total reflection Fourier-transform infrared (ATR-FTIR) spectroscopy is discussed in this paper for water splitting application. The first part of the focuses on discussion opportunities and challenges method characterization solid-liquid interface splitting. second recent results future perspectives. We present stable robust operando ATR-FTIR measurements using low temperature processing hematite a set-up where functional thin film integrated ATR crystal. find increased absorbance as function applied potential at wavenumber values 1000 cm ?1 –900 relate to changes surface species during oxidation. argue that approach has be developed routine interfaces Such data crucial importance validation models microkinetic modeling. show some modeling hematite–electrolyte explain how combination enables identification reaction mechanism discuss combined will enable designing tailored catalysts accelerating their development future.