Single Fe atom-anchored manganese dioxide for efficient removal of volatile organic compounds in refrigerator  

作　　者：Yiwen Wang Jun Zhang Yongfei Zhang Yu Zhang Zhe Wang Jing Wang Yuen Wu 

机构地区：[1]Department of Endocrinology,the First Affiliated Hospital of USTC,Division of Life Science and Medicine,University of Science and Technology of China,Hefei 230001,China [2]School of Chemistry and Materials Science,University of Science and Technology of China,Hefei 230026,China [3]Hefei Hualing Co.,Ltd,Hefei 230088,China [4]Linkway Technology Co.,Ltd,Research Institute of Single Atom Catalysts Industry Technology,Nanning 530000,China

出　　处：《Nano Research》2024年第5期3927-3933,共7页纳米研究（英文版）

基　　金：supported by the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDB0450401);the National Natural Science Foundation of China(Nos.92261105,22221003);the Anhui Provincial Natural Science Foundation(Nos.2108085QB70,2108085UD06);the Anhui Provincial Key Research and Development Project(No.2023z04020010);the Key Technologies Research and Development Program of Anhui Province(No.2022a05020053);the Collaborative Innovation Program of Hefei Science Center,Chinese Academy of Sciences(No.2021HSC-CIP002);the Joint Funds from Hefei National Synchrotron Radiation Laboratory(Nos.KY2060000180,KY2060000195).

摘　　要：The efficient and rapid removal of volatile organic compounds(VOCs)holds significant importance for ensuring food quality and human health,particularly within the low-temperature confined spaces in refrigerators.However,achieving effective VOCs degradation under such conditions poses challenges in terms of activating inert bonds and facilitating mass transfer.In this study,we propose a novel solution by designing a cleaner module that incorporates 1.07%single Fe atom-anchored manganese dioxide catalysts(FeSAs-MnO_(2)).The combination of single Fe atoms and defect-rich MnO_(2) substrate efficiently activates molecular oxygen,leading to enhanced generation of highly reactive oxygen species(ROS).Non-thermal plasma(NTP)and circulating fan are introduced to facilitate the regeneration of catalytic activity and improve mass transfer.The FeSAs-MnO_(2) cleaner module demonstrates exceptional performance in trimethylamine(TMA)removal,achieving a conversion efficiency of 98.9%for 9 ppm within just 9 min.Furthermore,accelerated aging tests predict an extended service life of up to 45 years for the FeSAs-MnO_(2) cleaner module,surpassing the expected lifespan of refrigerators significantly.

关 键 词：single atom catalysts volatile organic compounds(VOCs) trimethylamine(TMA) non-thermal plasma(NTP) REFRIGERATOR 

分 类 号：TQ426[化学工程]