Journal
CHEMICAL ENGINEERING JOURNAL
Volume 342, Issue -, Pages 364-371Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2018.02.078
Keywords
Core-shell; MOF; Porous carbon; Electromagnetic wave absorption
Categories
Funding
- NSFC [51571077, 51371071, 51321061]
- National Basic Science Research Program [2012CB933900]
- Fundamental Research Funds for the Central Universities [HIT.BRETIII.201202]
- program for New Century Excellent Talents in University of China [NCET-08-0166]
Ask authors/readers for more resources
This study develops a synthetic strategy to rapidly construct a ZnO core and N-doped porous carbon with embedded Co3ZnC nanoparticles shell heterostructure for electromagnetic wave absorption. ZnO colloidal is used as template and zinc source to fabricate ZIF67@ZIF8@ZnO core-shell structures as precursors. After annealing, the double-layered ZIF coating transforms into N-doped porous carbon and dispersive Co3ZnC nanoparticles shell outside the ZnO core. Compared with pristine ZnO colloidal and pure ZIF67 derived porous carbon/ Co nanoparticles composites, the core-shell heterostructures shows the most prominent electromagnetic wave absorption properties with strong absorption (minimum reflection loss of -62.9 dB) and broad effective absorption bandwidth (5.5 GHz). The enhanced properties can be ascribed to the multiple interfaces, doped atoms and groups, as well as the improved impedance matching endowed by the unique core-shell structure.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available