TY - JOUR
T1 - Preparation and microwave absorption properties of Nanomesh Poly (3,4-ethylenedioxythiophene) covalently functionalized graphene oxide
AU - Yan, Jing
AU - Huang, Ying
AU - Zhou, Suhua
AU - Han, Xiaopeng
AU - Liu, Panbo
N1 - Publisher Copyright:
© 2019, Springer Science+Business Media, LLC, part of Springer Nature.
PY - 2019/3/1
Y1 - 2019/3/1
N2 - In this work, we report a simple and effective method to prepare conducting poly (3,4-ethylenedioxythiophene)/thiophene-grafted graphene oxide (Th-GO-PEDOT) composite with enhanced microwave absorption properties. The first step, the carboxyl group of graphene oxide was converted into an acyl chloride intermediate by treating with thionyl chloride and then reacted with thiophene to give the thiophene group. The second step, the target product of Th-GO-PEDOT was successfully obtained by in-situ polymerization of 3,4-ethylenedioxythiophene on the surface of thiophene-grafted graphene nanosheets (Th-GO). The resulting samples were fully characterized by Raman spectroscopy, FT-IR, X-ray and Vector network analyzer. The as-prepared Th-GO-PEDOT composites exhibited superior electromagnetic microwave absorption performance and showed the minimum reflection loss (R L ) of − 47.5 dB (99.9% microwave absorption) at 15.5 GHz frequency and effective frequency (R L ≤ − 10 dB) of 4.9 GHz only 1.5 mm matching thickness. This study found that the strong covalent bond interaction between PEDOT and graphene is the crucial factor for the enhanced EM absorption performance, which provided a method for designing and manufacturing the microwave absorption materials further to meet the requirements of the ideal absorber.
AB - In this work, we report a simple and effective method to prepare conducting poly (3,4-ethylenedioxythiophene)/thiophene-grafted graphene oxide (Th-GO-PEDOT) composite with enhanced microwave absorption properties. The first step, the carboxyl group of graphene oxide was converted into an acyl chloride intermediate by treating with thionyl chloride and then reacted with thiophene to give the thiophene group. The second step, the target product of Th-GO-PEDOT was successfully obtained by in-situ polymerization of 3,4-ethylenedioxythiophene on the surface of thiophene-grafted graphene nanosheets (Th-GO). The resulting samples were fully characterized by Raman spectroscopy, FT-IR, X-ray and Vector network analyzer. The as-prepared Th-GO-PEDOT composites exhibited superior electromagnetic microwave absorption performance and showed the minimum reflection loss (R L ) of − 47.5 dB (99.9% microwave absorption) at 15.5 GHz frequency and effective frequency (R L ≤ − 10 dB) of 4.9 GHz only 1.5 mm matching thickness. This study found that the strong covalent bond interaction between PEDOT and graphene is the crucial factor for the enhanced EM absorption performance, which provided a method for designing and manufacturing the microwave absorption materials further to meet the requirements of the ideal absorber.
UR - http://www.scopus.com/inward/record.url?scp=85061358871&partnerID=8YFLogxK
U2 - 10.1007/s10854-019-00827-x
DO - 10.1007/s10854-019-00827-x
M3 - 文章
AN - SCOPUS:85061358871
SN - 0957-4522
VL - 30
SP - 5273
EP - 5283
JO - Journal of Materials Science: Materials in Electronics
JF - Journal of Materials Science: Materials in Electronics
IS - 5
ER -