TY - JOUR
T1 - Simple preparation and microwave absorption of TERGO/ZnO porous composites
AU - Liu, Xin
AU - Zhang, Fengcao
AU - Lu, Xiaolong
AU - Sun, Minglei
AU - Liu, Xiubo
AU - Yu, Zexin
AU - Liu, Zhongqing
AU - Zhao, Dong
AU - Wang, Mingdi
N1 - Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/12
Y1 - 2022/12
N2 - TERGO/ZnO porous composites with light weight, high porosity and good absorption properties were obtained by the method of heat treatment and hydrolysis process, which are simple to prepare and have a more uniform porous structure. After the facile thermal expansion, GO deoxidizes and rapidly expands to form a thermally expansion reduced graphene oxide (TERGO) porous structure with uniform and small pore size distribution. Subsequently, ZnO particles are uniformly dispersed in the surface or layer spacing of TERGO by hydrolysis to improve its impedance matching and interfacial polarization. Furthermore, expanded graphite (EG)/ZnO composites are prepared for comparison. The TERGO/ZnO composite shows excellent microwave absorption with a reflection loss bandwidth (≤ −10 dB) covering the X-band at 3.9 mm thickness. This research will provide guidelines for the preparation of microwave absorbers with low cost, porous, and good performance.
AB - TERGO/ZnO porous composites with light weight, high porosity and good absorption properties were obtained by the method of heat treatment and hydrolysis process, which are simple to prepare and have a more uniform porous structure. After the facile thermal expansion, GO deoxidizes and rapidly expands to form a thermally expansion reduced graphene oxide (TERGO) porous structure with uniform and small pore size distribution. Subsequently, ZnO particles are uniformly dispersed in the surface or layer spacing of TERGO by hydrolysis to improve its impedance matching and interfacial polarization. Furthermore, expanded graphite (EG)/ZnO composites are prepared for comparison. The TERGO/ZnO composite shows excellent microwave absorption with a reflection loss bandwidth (≤ −10 dB) covering the X-band at 3.9 mm thickness. This research will provide guidelines for the preparation of microwave absorbers with low cost, porous, and good performance.
KW - Microwave absorption properties
KW - Porous
KW - Thermal expansion reduced graphene oxide
KW - ZnO
UR - http://www.scopus.com/inward/record.url?scp=85139040571&partnerID=8YFLogxK
U2 - 10.1016/j.mtcomm.2022.104494
DO - 10.1016/j.mtcomm.2022.104494
M3 - Article
AN - SCOPUS:85139040571
SN - 2352-4928
VL - 33
JO - Materials Today Communications
JF - Materials Today Communications
M1 - 104494
ER -