Lightweight Co3O4/CC Composites with High Microwave Absorption Performance
<p>A structure diagram of the experimental process.</p> "> Figure 2
<p>XRD pattern of Co-MOFs (<b>a</b>) and the XRD patterns of S1–S3 (<b>b</b>).</p> "> Figure 3
<p>SEM images of (<b>a</b>,<b>b</b>) S1, (<b>c</b>,<b>d</b>) S2, and (<b>e</b>,<b>f</b>) S3.</p> "> Figure 4
<p>(<b>a</b>) XPS survey spectrum of S3. (<b>b</b>) C 1s, (<b>c</b>) O 1s, and (<b>d</b>) Co 2p from the core-level spectrum in S3. (Different colors represent different peak positions).</p> "> Figure 5
<p>The permittivity of the real (<b>a</b>) and imaginary (<b>b</b>) parts of the Co<sub>3</sub>O<sub>4</sub>/CC complex at three temperatures.</p> "> Figure 6
<p>The 3D plots of RL values for Co<sub>3</sub>O<sub>4</sub>/CC samples with different calcination temperatures of (<b>a</b>) S1, (<b>b</b>) S2, and (<b>c</b>) S3 in the frequency range of 2–18 GHz. (<b>d</b>) The RL values of S3 with different thicknesses.</p> "> Figure 7
<p>Frequency dependence rates of (<b>a</b>) tan δ<sub>ε</sub>, (<b>b</b>) α, and (<b>c</b>) Z<sub>r</sub> for S1–S3. (<b>d</b>) Effective absorption bandwidths with three calcination temperatures.</p> "> Figure 8
<p>RL curves of S3 at thicknesses of (<b>a</b>) 4.2 mm and (<b>b</b>) 3.7 mm.</p> "> Figure 9
<p>Diagram of the microwave attenuation mechanism for Co<sub>3</sub>O<sub>4</sub>/CC composites.</p> ">
Abstract
:1. Introduction
2. Materials and Methods
2.1. Preparation of the Co3O4/CC Precursor
2.2. Synthesis of Co3O4/CC Composites
2.3. Characterization and Measurement
3. Results and Discussion
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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An, B.; Wu, M.; Yang, X.; Man, Z.; Feng, C.; Liang, X. Lightweight Co3O4/CC Composites with High Microwave Absorption Performance. Nanomaterials 2023, 13, 1903. https://doi.org/10.3390/nano13131903
An B, Wu M, Yang X, Man Z, Feng C, Liang X. Lightweight Co3O4/CC Composites with High Microwave Absorption Performance. Nanomaterials. 2023; 13(13):1903. https://doi.org/10.3390/nano13131903
Chicago/Turabian StyleAn, Bing, Mei Wu, Xinhuang Yang, Zengming Man, Chunyang Feng, and Xiaohui Liang. 2023. "Lightweight Co3O4/CC Composites with High Microwave Absorption Performance" Nanomaterials 13, no. 13: 1903. https://doi.org/10.3390/nano13131903