Abstract
In this work,we put forward a scheme to exquisitely design and selectively synthesize the core@shell structured MSe2/FeSe2@MoSe2(M = Co,Ni)flower-like multicomponent nanocomposites(MCNCs)through a simple two-step hydrothermal reaction on the surfaces of MFe204 nanospheres with the cer-tain amounts of Mo and Se sources.With increasing the amounts of Mo and Se sources,the obtained core@shelll structured MSe2/FeSe2@MoSe2(M = Co,Ni)MCNCs with the enhanced content of MoSe2 and improved flower-like geometry morphology could be produced on a large scale.The obtained results re-vealed that the as-prepared samples displayed improved comprehensive microwave absorption properties(CMAPs)with the increased amounts of Mo and Se sources.The as-prepared CoSe2/FeSe2@MoSe2 and NiSe2/FeSe2@MoSe2 MCNCs with the well-defined flower-like morphology could simultaneously present the outstanding CMAPs in terms of strong absorption capability,wide absorption bandwidth,and thin matching thicknesses,which mainly originated from the conduction loss and flower-like geometry mor-phology.Therefore,the findings not only develop the very desirable candidates for high-performance microwave absorption materials but also pave a new way for optimizing the CMAPs through tailoring morphology engineering.
基金项目
Fund of Fok Ying Tung Education Foundation()
Major Research Project of innovative Group of Guizhou province(2018-013)
Open Fund from Henan University of Science and Technology()
国家自然科学基金(11964006)
国家自然科学基金(11774156)
Foundation of the National Key Project for Basic Research(2012CB932304)
NETL
NSTL
万方数据