An electrolyte side-incidence photoelectrocatalytic CO 2 Reduction pool

Abstract

The invention discloses an electrolytic solution side-incidence photoelectric catalytic CO 2 Reduction reaction cell, including: working electrode cover plate, working electrode reaction chamber, counter electrode reaction chamber, counter electrode cover plate and light-transmitting cover plate; working electrode cover plate, working electrode reaction chamber, counter electrode reaction chamber and counter electrode cover plate Clamped by bolts; the working electrode reaction chamber and light-transmitting cover are clamped by bolts. In the present invention, the ratio of the area of ​​the working electrode to the volume of the reaction chamber is very small, which can achieve the purpose of increasing the content of the liquid-phase product in the electrolyte and improve the detection accuracy of the liquid-phase product. In the present invention, the distance from the reference electrode to the working electrode is very small, which can reduce the uncompensated impedance in the testing process. CO in the present invention 2 The saturation device is very close to the working electrode, which can accelerate the CO 2 Mass transfer to the working electrode. In the present invention, the electrodes and corresponding reaction chambers are fixed by independent bolts, and the electrodes do not need to be disassembled when replacing the electrolyte or cleaning the reaction chamber, which improves the stability of repeated measurements.

Description

technical field [0001] The invention belongs to the field of photoelectrochemical testing, in particular to a photoelectrocatalytic CO 2 Restored reaction setup. Background technique [0002] Photoelectrocatalytic CO 2 Reduction technology refers to the conversion of water and CO 2 Technology for synthesis of small molecule hydrocarbon fuels. The reaction can be carried out in the environment of normal temperature and pressure. Since the carrier excitation, carrier migration and surface electrochemical reactions in the reaction system all occur inside or at the interface of the photoelectrode, the photoelectrode is the core component of the entire reaction. According to the current research needs, there are two ways to illuminate the photoelectrode: front illumination (electrolyte side) and back illumination (electrode side). For the photoelectrode, the incident mode on the electrolyte side can more directly generate carriers at the energy band bending position on the e...

AI Technical Summary

Problems solved by technology

However, there is no technically disclosed photocatalytic CO 2 The reduction reaction cell can meet the parallel arrangement of the working electrode and the counter electrode at the same time, and the ion exchange membrane is used to isolate the cathode chamber and the anode chamber

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