title: Microwave absorption properties of carbon nanocoils coated with highly controlled magnetic materials by atomic layer deposition.
abstract: In this work, atomic layer deposition is applied to coat carbon nanocoils with magnetic Fe(3)O(4) or Ni. The coatings have a uniform and highly controlled thickness. The coated nanocoils with coaxial multilayer nanostructures exhibit remarkably improved microwave absorption properties compared to the pristine carbon nanocoils. The enhanced absorption ability arises from the efficient complementarity between complex permittivity and permeability, chiral morphology, and multilayer structure of the products. This method can be extended to exploit other composite materials benefiting from its convenient control of the impedance matching and combination of dielectric-magnetic multiple loss mechanisms for microwave absorption applications.
authors.affiliation: State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, People's Republic of China.
authors.forename: Guizhen
authors.initials: G
authors.lastname: Wang
authors.forename: Zhe
authors.initials: Z
authors.lastname: Gao
authors.forename: Shiwei
authors.initials: S
authors.lastname: Tang
authors.forename: Chaoqiu
authors.initials: C
authors.lastname: Chen
authors.forename: Feifei
authors.initials: F
authors.lastname: Duan
authors.forename: Shichao
authors.initials: S
authors.lastname: Zhao
authors.forename: Shiwei
authors.initials: S
authors.lastname: Lin
authors.forename: Yuhong
authors.initials: Y
authors.lastname: Feng
authors.forename: Lei
authors.initials: L
authors.lastname: Zhou
authors.forename: Yong
authors.initials: Y
authors.lastname: Qin
mesh_terms: D000042:Absorption; D000537:Aluminum Oxide / Q000737:chemistry; D002244:Carbon / Q000737:chemistry*; D052203:Ferrosoferric Oxide / Q000737:chemistry*; D008872:Microwaves; D053758:Nanoparticles / Q000737:chemistry*; D009532:Nickel / Q000737:chemistry; D010539:Permeability
chemical_list: D002244:Carbon; D009532:Nickel; D000537:Aluminum Oxide; D052203:Ferrosoferric Oxide