文献类型：期刊文献

英文题名：Scalable electrosynthesis of propionic acid via 1-propanol oxidation on nickel hydroxide electrodes in a diaphragmless electrolytic cell

作者：Zhang, Nan Ji, Shan Wang, Xuyun Ma, Xianguo Linkov, Vladimir Wang, Rongfang Wang, Hui

第一作者：Zhang, Nan

机构：[1] College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China; [2] College of Biological Chemical Science and Engineering, Jiaxing University, Jiaxing, 314001, China; [3] School of Chemical Engineering, Guizhou Institute of Technology, Guiyang, 550003, China; [4] South African Institute for Advanced Materials Chemistry, University of the Western Cape, Cape Town, 7535, South Africa

第一机构：College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China

通信机构：College of Biological Chemical Science and Engineering, Jiaxing University, Jiaxing, 314001, China

年份：2026

卷号：95

起止页码：90-101

外文期刊名：Chinese Journal of Chemical Engineering

收录：EI(收录号：20262721039624);Scopus(收录号：2-s2.0-105043578973)

语种：英文

外文关键词：Chemical industry - Density functional theory - Diaphragms - Dyes - Efficiency - Electrodes - Electrolytic analysis - Electrolytic cells - Green manufacturing - Nickel compounds - Propanol - Sodium hydroxide - Synthesis (chemical)

摘要：Biomass valorization via electrosynthesis offers an eco-friendly route under mild conditions. Herein, propionic acid from 1-propanol was produced on nickel hydroxide electrodes (Ni(OH)2/NF) using the 1-propanol precursor in a diaphragmless electrolytic cell. Systematic optimization of key operational parameters—including current density, NaOH concentration, 1-propanol concentration, and reaction time—was carried out to maximize product efficiency. Under optimal operating conditions (0.35 mol·L?1 of 1-propanol, 0.5 mol·L?1 of NaOH, 40 mA·cm?2 of current density and 5 h of reaction time), this multivariate strategy achieved a Faradaic efficiency of 94.11% and a yield of 70.42% for propionic acid. Notably, scalability was validated through gram-scale synthesis in a single batch, producing tens of grams of propionic acid and highlighting the practical viability of the diaphragmless configuration. Combined electrochemical analyses and density functional theory (DFT) calculations elucidate the reaction mechanism, revealing that Ni(OH)2/NF facilitates the dehydrogenation and oxidative coupling steps critical to selective propionic acid formation. This study not only establishes a green and efficient route for value-added chemical production from biomass-derived alcohols but also demonstrates the industrial potential of diaphragmless electrolytic systems. ? 2026 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd.