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Vapor diffusion synthesis of CoFe2O4hollow sphere/graphene composites as absorbing materials
Abstract
Novel CoFe2O4 hollow sphere/graphene composites were synthesized by a facile vapor diffusion method in combination with calcination at 550 °C. The structure and morphology of as-prepared hybrid materials were characterized by electron microscopy, X-ray diffractometry, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy and Raman spectroscopy. Uniform CoFe2O4 hollow spheres with a diameter of about 500 nm and a shell thickness of approximately 50 nm were homogeneously distributed on graphene sheets. The electromagnetic parameters were measured using a vector network analyzer. A minimum reflection loss of −18.5 dB was observed at 12.9 GHz for the CoFe2O4 hollow sphere/graphene composites with a thickness of 2 mm, and the effective absorption frequency ranged from 11.3 to 15.0 GHz. The CoFe2O4 hollow sphere/graphene composites exhibited better microwave absorbing performance than the CoFe2O4 hollow spheres. A possible formation mechanism for CoFe2O4 hollow sphere/graphene composites was proposed.
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Cites
Graphene: Status and Prospects
Geim, A. K. (2009) · Science · doi:10.1126/science.1158877 · Cited by 13,942
Superior Thermal Conductivity of Single-Layer Graphene
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Cited by
Electromagnetic microwave absorption theory and recent achievements in microwave absorbers
Zeng, X., Cheng, X., Yu, R., & Stucky, G. D. (2020) · Carbon · doi:10.1016/j.carbon.2020.07.028 · Cited by 991
Toward the Application of High Frequency Electromagnetic Wave Absorption by Carbon Nanostructures
Li, Q., Zhang, Z., Qi, L., Liao, Q., Kang, Z., & Zhang, Y. (2019) · Advanced Science · doi:10.1002/advs.201801057 · Cited by 615
Li, M., Xiong, Y., Liu, X., Bo, X., Zhang, Y., Han, C., & Guo, L. (2015) · Nanoscale · doi:10.1039/c4nr07243j · Cited by 542
Qing, Y., Min, D., Zhou, Y., Luo, F., & Zhou, W. (2015) · Carbon · doi:10.1016/j.carbon.2015.01.002 · Cited by 310
Metal–organic framework derived hollow materials for electrochemical energy storage
Xie, X.-C., Huang, K.-J., & Wu, X. (2018) · Journal of Materials Chemistry A · doi:10.1039/c8ta00612a · Cited by 284
Metadata
- Authors
- Fu, M., Jiao, Q., Zhao, Y., & Li, H.
- Venue
- J. Mater. Chem. A
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2014
- Volume
- 2
- Issue
- 3
- Pages
- 735-744
- ISSN
- 2050-7488 (ISSN-L)
- 2050-7496
- OpenAlex
- W2026130166
- Cited by
- 297
- References
- 2
- FWCI
- 8.95
- Type
- journal article
- Language
- en
- Open access
- closed
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- Fu, M., Jiao, Q., Zhao, Y., & Li, H. (2014). Vapor diffusion synthesis of CoFe2O4hollow sphere/graphene composites as absorbing materials. J. Mater. Chem. A. https://doi.org/10.1039/c3ta14050d
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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