In Situ UV–Vis Spectroelectrochemical Cell Model: EC-UV1 / EC-UV2

In Situ UV–Vis Spectroelectrochemical Cell EC-UV1 / EC-UV2 In situ UV–Vis cells for potential-controlled optical monitoring in single-compartment and membrane-separated configurations. Product Overview The EC-UV Series is designed for in situ UV–Vis spectroelectrochemical studies under electrochemical control. EC-UV1 features a compact single-chamber design with an ITO working electrode and sapphire optical window, while EC-UV2 provides a membrane-separated H-type configuration with gas access to the working compartment. The series supports potential-dependent optical monitoring of redox processes and electroactive interfaces. Key Features Shimadzu UV-2600 Compatibility Designed for in situ UV–Vis measurements with the Shimadzu UV-2600 spectrophotometer. Potential-Controlled UV–Vis Monitoring Combines electrochemical control with real-time monitoring of potential-dependent absorption changes. Flexible Cell Configurations EC-UV1 offers a single-chamber design, while EC-UV2 provides a membrane-separated H-type configuration with gas access. Technical Specifications Specification Details Chamber structure Single-chamber (EC-UV1); Two-chamber (EC-UV2) Electrode system Three-electrode Working electrode ITO or FTO electrode; customizable Counter electrode Pt wire or graphite rod electrode Reference electrode Standard Ø6 mm reference electrode Cell body material PEEK Optical window material Sapphire Optical window diameter Ø25 mm Membrane separation Replaceable membrane (EC-UV2) Typical Applications Redox Process Monitoring Tracking potential-dependent UV–Vis spectral changes during oxidation and reduction. Electrocatalyst & Electroactive Material Studies Monitoring catalyst states, intermediates and electroactive interfaces under applied potentials. Time-Resolved Spectroelectrochemistry Following transient optical responses during potential-step or pulsed measurements. Membrane-Separated & Gas-Controlled Studies Using EC-UV2 for compartment-separated or gas-controlled measurements. Model Selection Guide EC-UV1 — Single-chamber A compact single-chamber design with an ITO working electrode and sapphire optical window. Recommended for conventional in situ UV–Vis spectroelectrochemical measurements. Select this model when direct monitoring of potential-dependent spectral changes is required. EC-UV2 — Two-chamber, Membrane-separated An H-type two-chamber design with a replaceable membrane and gas access to the working compartment. Recommended for in situ UV–Vis studies requiring electrode-compartment separation. Select this model when membrane separation or controlled gas introduction is required. Published Application Example Potential-Dependent In Situ UV–Vis Monitoring of Ir-Based OER Catalysts Shen et al. used a custom transmission-type in situ UV–Vis electrochemical cell compatible with a Shimadzu UV-2600 to investigate the oxidation-state evolution of CeO₂–IrO₂ and IrO₂ during oxygen evolution. The catalyst was deposited on a transparent FTO working electrode in the optical path. Potential-dependent and time-resolved UV–Vis measurements revealed sequential Ir redox transitions and correlated absorbance changes with electrochemical charge accumulation. Capabilities Relevant to the EC-UV Series Supports potential-dependent in situ UV–Vis monitoring during electrochemical polarization. Enables transmission measurements with transparent conductive working electrodes. Supports kinetic and pulsed-potential studies of redox-state changes. Application Studies Application studies using this series are currently underway. Note: The referenced study used a custom transmission-type in situ UV–Vis electrochemical cell compatible with a Shimadzu UV-2600 and a catalyst-coated FTO working electrode. The commercial cell model and manufacturer were not identified, and the study is included solely as a related application example.