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

通信作者：Wang, XY[1];Wang, H[1];Ji, S[2]

机构：[1]Qingdao Univ Sci & Technol, Coll Chem Engn, Qingdao 266042, Peoples R China;[2]Jiaxing Univ, Coll Biol Chem Sci & Engn, Jiaxing 314001, Peoples R China;[3]Guizhou Inst Technol, Sch Chem Engn, Guiyang 550003, Peoples R China;[4]Univ Western Cape, South African Inst Adv Mat Chem, ZA-7535 Cape Town, South Africa

第一机构：Qingdao Univ Sci & Technol, Coll Chem Engn, Qingdao 266042, Peoples R China

通信机构：corresponding author), Qingdao Univ Sci & Technol, Coll Chem Engn, Qingdao 266042, Peoples R China;corresponding author), Jiaxing Univ, Coll Biol Chem Sci & Engn, Jiaxing 314001, Peoples R 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);WOS:【SCI-EXPANDED(收录号:WOS:001877907300001)】；

基金：The authors would like to express their gratitude for the financial support received from Natural Science Foundation of Guizhou Province (QKHJC-ZK [2023] Key 019), Top Talent Project of Guizhou Provincial Department of Education (QJJ [2022]084), and Key Laboratory of Energy Chemistry in Guizhou universities (QJJ [2022] 035).

语种：英文

外文关键词：Catalysis; Electrochemistry; Scale-up; Propionic acid; Optimal operating conditions; Reaction mechanism

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 & horbar;including current density, NaOH concentration, 1-propanol concentration, and reaction time & horbar;was carried out to maximize product efficiency. Under optimal operating conditions (0.35 mol & centerdot;L 1 of 1-propanol, 0.5 mol & centerdot;L 1 of NaOH, 40 mA & centerdot;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. (c) 2026 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies.