文献类型：期刊文献

英文题名：Electrochemically synthesized Cu-Mg mesh catalysts for methanol steam reforming

作者：Wang, Jing[1];Gu, Haoyuan[1];Liu, Qi[1];Li, Didi[1];Xu, Jing[1,2];Zhu, Minghui[1]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Green Chem Engn & Ind Catalysis, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Guangxi Univ, Sch Chem & Chem Engn, Guangxi Key Lab Petrochem Resource Proc & Proc Int, Nanning 530004, Peoples R China

年份：2025

卷号：17

期号：24

起止页码：14741

外文期刊名：NANOSCALE

收录：;EI(收录号：20252218518040);WOS:【SCI-EXPANDED(收录号:WOS:001497459200001)】；

基金：This work was supported by the National Key R&D Program of China (2022YFB3805504), the Shanghai Pilot Program for Basic Research (22TQ1400100-7), the Basic Research Program of Science and Technology Commission of Shanghai Municipality (22JC1400600) and the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：Catalytic reforming

摘要：Methanol steam reforming (MSR) represents a cost-effective method for hydrogen production. Structured catalysts, which exhibit strong resistance to frequent mechanical vibrations and suitability for on-board MSR, are somewhat complicated to fabricate. Herein, we synthesized and investigated copper-magnesium (Cu-Mg) mesh-type structured catalysts by a modified cycling chronopotentiometry method. The Cu-Mg-mesh catalyst was electro-synthesized in a Mg(NO3)2 electrolyte and achieved a H2 yield of 205.82 mmol (gcat h)-1 at 250 degrees C and a WHSVMeOH of 12 h-1, whereas the unpromoted Cu-mesh catalyst prepared in a NaNO3 electrolyte exhibited no catalytic activity under the same reaction conditions. A series of in situ characterization and chemisorption studies show that MgO not only improves the dispersion and stability of Cu nanoparticles, but also strengthens the catalyst surface basicity, promotes the formation of methoxy intermediates and boosts the activity of formate, ultimately leading to superior catalytic performance.