Photoelectrocatalytic CO2 reduction involves multi-electron transfer at the electrode surface; products may be CO, HCOOH, CH4, or even C2 compounds, and each product rises and falls over time. Offline sampling often only captures a mixed gas at one moment, missing transient products and easily amplifying selectivity-calculation deviations due to sampling-volume errors.
Centered on the μGAS1000 Micro-Gas Reaction Evaluation System, the outlet gas from a photoelectrocatalytic reaction system (with three electrodes and a light source) is connected to the chromatograph inlet. The PEC2000 EASY Photoelectrochemical Test System handles electrochemical and illumination synchronization, while the μGAS1000 samples and analyzes gas on a schedule, forming a synchronized "electricity–light–gas" record.
Free consultation: Too many CO2 reduction products and unstable data? Perfectlight's μGAS1000 combination links photoelectrocatalysis with online gas chromatography, making the product spectrum clear at a glance.
Tel: 400-1161-365 / 010-62128921 Perfectlight Official Website
Identify each gas by comparing its retention time on the chromatography column with standard gas.
It is the ratio of electrons consumed by a product to the total transferred electrons; calculating from online cumulative amounts is more robust than offline single points.
To distinguish the target CO2 reduction from the hydrogen-evolution side reaction; gases from both sides should be read online separately.
This article does not constitute a performance commitment; specific technical parameters are subject to the actual product documentation and mutual confirmation.
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