文献类型：期刊文献

英文题名：Promotion effect of cobalt doping on microwave-initiated plastic deconstruction for hydrogen production over iron catalysts

作者：Li, Wentao[1,2];Qian, Kezhen[1,2];Yang, Zixu[3];Ding, Xiaoxu[3];Tian, Wenmin[1,2];Chen, Dezhen[1,2]

机构：[1]Tongji Univ, Sch Mech & Energy Engn, Shanghai 200092, Peoples R China;[2]Shanghai Engn Res Ctr Multisource Solid Wastes Cop, Shanghai 200092, Peoples R China;[3]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2023

卷号：327

外文期刊名：APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY

收录：;EI(收录号：20230813600810);WOS:【SCI-EXPANDED(收录号:WOS:001005356100001)】；

基金：Acknowledgements This work was financially supported by the National Natural Science Foundation of China (Grant No. 52106266) , National Higher-education Institution General Research and Development Project (Grant No. 22120210538) .

语种：英文

外文关键词：Microwave; Plastic deconstruction; Hydrogen

摘要：Microwave-initiated deconstruction of plastic into hydrogen and high-value carbons is an attractive upcycling technology. However, the interplay between microwave field and catalyst material and the reaction mechanism were not fully understood. In this study, Co doping Fe-Al catalysts were synthesized for hydrogen production from LDPE using microwave and conventional heating. The Fe1Co1Al2 catalyst yielded hydrogen at 61.39 mmol/gplastic under microwave, which was almost two times higher than conventional heating. Characterization indicated Co doped spinel iron catalyst under microwave rapidly transformed into the highly active FeCo alloy for plastic dehydrogenation. The microwave field was responsible for the rapid formation of FeCo, as it enhanced the charge transfer from H to Fe. The Co doping also inhibited the formation of Fe3C during plastic decon-struction, which changed the carbon diffusion pathway and promoted the formation of nanotubes and hydrogen production.