TY - JOUR
T1 - Biomass-derived carbon-coated WS2 core-shell nanostructures with excellent electromagnetic absorption in C-band
AU - Hou, Chuanxu
AU - Cheng, Junye
AU - Zhang, Huibin
AU - Lu, Ziheng
AU - Yang, Xiuying
AU - Zheng, Guangping
AU - Zhang, Deqing
AU - Cao, Maosheng
N1 - Funding Information:
This work was supported by the National Natural Science Foundation of China ( 52072192 and 51977009 ), China Postdoctoral Science Foundation (Grant No. 2020M682029 ) and Regional Joint Fund for Basic Research and Applied Basic Research of Guangdong Province (No. 2020SA001515110905 ).
Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2022/3/1
Y1 - 2022/3/1
N2 - With the continuous advances in detection and early-warning technologies, stealth technologies have widely integrated in modern combat systems and armament research. The development of high-performance electromagnetic wave absorbing materials is important for electromagnetic stealth and shielding applications. Herein, biomass-derived carbon (BDC) from glucose is coated on the surface of folded and stacked WS2 nanosheets, forming WS2@BDC via a simple hydrothermal method and subsequent annealing carbonization. The amount of the BDC coating on the WS2 nanosheets is effectively controlled by the glucose solution concentration, and the electromagnetic wave (EMW) absorption performance in the low-frequency bands can be adjusted by the regulation of annealing temperature. The effective absorption band of WS2@BDC is shifted to a lower frequency region and the absorption performance is substantially enhanced, compared to those of pure WS2 nanosheets. The minimum reflection loss of WS2@BDC corresponding to 14 mL of glucose and a carbonization temperature of 800 °C can reach up to −51.40 dB at 5.52 GHz. The study provides a novel and facile method for improving the EMW absorption performance of WS2 in the low-frequency bands.
AB - With the continuous advances in detection and early-warning technologies, stealth technologies have widely integrated in modern combat systems and armament research. The development of high-performance electromagnetic wave absorbing materials is important for electromagnetic stealth and shielding applications. Herein, biomass-derived carbon (BDC) from glucose is coated on the surface of folded and stacked WS2 nanosheets, forming WS2@BDC via a simple hydrothermal method and subsequent annealing carbonization. The amount of the BDC coating on the WS2 nanosheets is effectively controlled by the glucose solution concentration, and the electromagnetic wave (EMW) absorption performance in the low-frequency bands can be adjusted by the regulation of annealing temperature. The effective absorption band of WS2@BDC is shifted to a lower frequency region and the absorption performance is substantially enhanced, compared to those of pure WS2 nanosheets. The minimum reflection loss of WS2@BDC corresponding to 14 mL of glucose and a carbonization temperature of 800 °C can reach up to −51.40 dB at 5.52 GHz. The study provides a novel and facile method for improving the EMW absorption performance of WS2 in the low-frequency bands.
UR - http://www.scopus.com/inward/record.url?scp=85119698760&partnerID=8YFLogxK
U2 - 10.1016/j.apsusc.2021.151939
DO - 10.1016/j.apsusc.2021.151939
M3 - Journal article
AN - SCOPUS:85119698760
SN - 0169-4332
VL - 577
JO - Applied Surface Science
JF - Applied Surface Science
M1 - 151939
ER -