Kim, Kyeongsu Lee, Woong Hee Na, Jonggeol Hwang, YunJeong Oh, Hyung-Suk Lee, Ung 2024-01-19T16:33:38Z 2024-01-19T16:33:38Z 2021-09-02 2020-09-07 2050-7488 https://pubs.kist.re.kr/handle/201004/118132 Electroreduction systems to convert CO(2)into COviaAg electrodes have been intensely studied as a means of producing carbon-neutral fuels or chemical products. However, despite many efforts to maximize the performance of CO-producing systems, the performance of electrochemical cells that produce CO has not yet reached the level of economic viability. Moreover, compared with electrode development attempts, studies on the optimization of large-scale CO-producing systems are lacking, thus impeding the commercialization of electrochemical CO(2)reduction systems. In this study, we present optimization results of a pilot-scale CO production system. Operating conditions such as pressure, temperature, and cell voltage were considered as the optimization variables to improve the CO partial current density. To facilitate experiment-based optimization of the pilot-scale operation, we adopted an efficient design of the experiment, for which data points were decided by input-output relations. As a result, the maximum CO partial current reached 2.56 A using a 50 cm(2)electrode within 25 experiments. In addition, regression analysis results were provided for future studies on the systematic optimization of electrochemical systems. The operating temperature and CO(2)solubility were more highly correlated with the current density and selectivity than was the applied cell voltage, and the CO current density could be predicted with high accuracy. English ROYAL SOC CHEMISTRY CARBON-DIOXIDE REDUCTION ELECTROREDUCTION CAPTURE ELECTRODE MODEL WATER Data-driven pilot optimization for electrochemical CO mass production Article 10.1039/d0ta05607c 1 JOURNAL OF MATERIALS CHEMISTRY A, v.8, no.33, pp.16943 - 16950 JOURNAL OF MATERIALS CHEMISTRY A 8 33 16943 16950 scie scopus 000562931300012 2-s2.0-85090296298 Chemistry, Physical Energy & Fuels Materials Science, Multidisciplinary Chemistry Energy & Fuels Materials Science Article CARBON-DIOXIDE REDUCTION ELECTROREDUCTION CAPTURE ELECTRODE MODEL WATER