Realizing Maximum Microwave Absorption of Poly(3,4-ethylenedioxythiophene) with a Data-Driven Method

Green, Michael; Tran, Anh Thi Van; Chen, Xiaobo

doi:10.1021/acsaelm.0c00573

Cited by 25 publications

(33 citation statements)

References 56 publications

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“…To fully bolster the RL characteristics of PVB‐PANI‐FAC composite, using the experimentally recorded 5 wt%, 15 wt%, and 25 wt% PANI‐FAC hybrids loaded data, the

ε'

and

ε ″

were modeled as a function of wt% for PANI‐FAC hybrids loading from 1.5 wt% to 24.5 wt% at 0.5 wt% intervals. The measured

ε'

and

ε ″

data sets (5 wt%, 15 wt%, and 25 wt%) were functionalized with

f ((), x) = a x^{b}

, 36 here,

a

and

b

were determined using standard Levenberg–Marquardt (LM) method 36,37 . A Python code (Python 3.8) was developed based on

f ((), x) = a x^{b}

and obtained

ε'

and

ε ″

data for 1.5 wt% to 24.5 wt% PANI‐FAC loaded PVB‐PANI‐FAC composite were shown in Figure 6a and Figure 6b, respectively.…”

Section: Resultsmentioning

confidence: 99%

Data‐driven methodology to realize strong and broadband microwave absorption properties of polymer‐fly ash cenosphere composite

Bora

Mahanta

Kishore

et al. 2021

J of Applied Polymer Sci

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A very efficient microwave absorption characteristic of conducting polymer (polyaniline or PANI) incorporated fly ash cenosphere (FAC), which is a waste of thermal power plant, is revealed in this work with materials data‐driven approach. The different loading (wt%) of PANI‐FAC hybrids to a polymer such as polyvinyl butyral (PVB) results in different reflection loss (RL). However, RL performances do not improve by simply increasing the PANI‐FAC hybrid loading (wt%) to PVB. Herein, PANI‐FAC loading to PVB is optimized through the electromagnetic data‐driven methodology. A remarkable RL ≤ − 40 dB with entire X‐band (8.2–12.4 GHz) absorption bandwidth (RL ≤ −10 dB, RL value −10 dB corresponds to 90% absorption) is predicted for 8.5 wt% PANI‐FAC hybrid loaded PVB‐PANI‐FAC composite. The predicted RL matched with experimental data (minimum RL value −44.5 dB with X‐band absorption bandwidth), confirming the proposed proof of concept of data‐driven methodology to obtain broadband and robust microwave absorption characteristics of polymer‐FAC composites.

show abstract

“…To fully bolster the RL characteristics of PVB‐PANI‐FAC composite, using the experimentally recorded 5 wt%, 15 wt%, and 25 wt% PANI‐FAC hybrids loaded data, the

ε'

and

ε ″

were modeled as a function of wt% for PANI‐FAC hybrids loading from 1.5 wt% to 24.5 wt% at 0.5 wt% intervals. The measured

ε'

and

ε ″

data sets (5 wt%, 15 wt%, and 25 wt%) were functionalized with

f ((), x) = a x^{b}

, 36 here,

a

and

b

were determined using standard Levenberg–Marquardt (LM) method 36,37 . A Python code (Python 3.8) was developed based on

f ((), x) = a x^{b}

and obtained

ε'

and

ε ″

data for 1.5 wt% to 24.5 wt% PANI‐FAC loaded PVB‐PANI‐FAC composite were shown in Figure 6a and Figure 6b, respectively.…”

Section: Resultsmentioning

confidence: 99%

Data‐driven methodology to realize strong and broadband microwave absorption properties of polymer‐fly ash cenosphere composite

Bora

Mahanta

Kishore

et al. 2021

J of Applied Polymer Sci

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“…Figure 6a shows that the RL value is strongly related to PANI-Ti 3 C 2 T x MXene wt % loading (filler content), and the best RL performance is exhibited by the 20 wt % PANI-Ti 3 C 2 T x MXene loaded PVB nanocomposite in comparison to 5, 10, 40 , and 60 wt % PANI-Ti 3 C 2 T x MXene loaded PVB nanocomposites. 37,38 The advantage of using the LM algorithm is that, for nonlinear curve fitting, the LM algorithm finds only a local minimum and interpolates data between the Gauss−Newton algorithm (GNA) and the method of gradient descent. 38 That is why the LM algorithm is more robust and beneficial for power function related solutions.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…In order to fully understand the potential of the PVB-PANI-Ti 3 C 2 T x MXene nanocomposite, the experimentally recorded 5, 10, 20, 40, and 60 wt % PANI-Ti 3 C 2 T x MXene loaded data were used to model ε′ and ε″ as a function of wt % for the PVB-PANI-Ti 3 C 2 T x MXene nanocomposite in X-band. The ε′ and ε″ data sets (5, 10, 20, 40, and 60 wt %) were functionalized in accordance with a power function of form f ( x ) = ax b ; here, the variables a and b were determined using the standard Levenberg–Marquardt (LM) algorithm. , The advantage of using the LM algorithm is that, for nonlinear curve fitting, the LM algorithm finds only a local minimum and interpolates data between the Gauss–Newton algorithm (GNA) and the method of gradient descent . That is why the LM algorithm is more robust and beneficial for power function related solutions .…”

Section: Resultsmentioning

confidence: 99%

Electromagnetic Data-Driven Approach to Realize the Best Microwave Absorption Characteristics of MXene-Based Nanocomposites

Bora

Mahanta

Anil

et al. 2021

ACS Appl. Electron. Mater.

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The polymer composite-based microwave absorption material is highly valued in stealth technology, military, wireless technology, self-powered devices, and telecommunication. In this work, microwave absorption characteristics of different compositions of polyaniline (PANI)-Ti3C2T x MXene (a family of 2D material) hybrid loaded polyvinyl butyral (PVB), viz., the PVB-PANI-Ti3C2T x MXene nanocomposite, are explored with an electromagnetic data-driven approach. The significance of the proposed electromagnetic data-driven approach is that, through this, the reflection loss (RL) characteristics (minimum RL value and RL ≤ −10 dB bandwidth) can be identified for any PANI-Ti3C2T x MXene loading (wt %) to PVB and hence easily realize the optimal RL performance of the PVB-PANI-Ti3C2T x MXene nanocomposite. Herein, based on the few experimental electromagnetic data of different wt % of PANI-Ti3C2T x MXene loading in PVB, the electromagnetic response for compositions of 0.2–59.9 wt % were modeled, and a remarkable RL value of −59.5 dB in X-band (8.2–12.4 GHz) for 1.5 mm thickness was predicted for 23.5 wt % PANI-Ti3C2T x MXene. The predicted RL matched with experimental data. This data-driven approach is generalizable for electromagnetic composites to better understand the RL characteristics.

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“…In addition, the concentration-dependent microwave absorption measurement of Ag/C composites can be used to explore the best microwave absorption properties. − With the increase in filling ratio, the permeability almost does not change (μ′ ≈ 1 and μ″ ≈ 0, as shown in Figures S5 and S6), but the permittivity (Figure S6a–c) and microwave absorption properties (Figure S6d–f) change obviously. In the case of 15 wt % filling rate, ε′ and ε″ are close to 4 and 0.5, respectively.…”

Section: Results and Analysismentioning

confidence: 99%

Ag Nanoparticles Embedded in Multishell Carbon Nanoparticles for Microwave Absorption

Zhou

Tao

Yao

et al. 2021

ACS Appl. Nano Mater.

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The combination of Ag nanomaterials and special nanostructures can significantly amplify the conversion of electromagnetic energy, especially in microwave absorption applications. Herein, a kind of multishell Ag/C composite nanoparticle with about 635 nm size prepared by a self-assembly method was reported, in which the Ag nanoparticles were about 20–40 nm in size. In the process of synthesis, Ag-related nanoparticles interfere with the internal cross-linking degree of phenolic polymers, and Ag nanoparticles were embedded into multishell carbon nanoparticles after acetone etching and high-temperature calcination. Studies have shown that the multishell Ag/C heterogeneous particles have excellent dielectric loss capabilities. By adjusting the Ag content, the dielectric properties and impedance matching characteristics of the particles can be optimized, and thus, the effective absorption bandwidth is 5.85 GHz ranging from 12.15 to 18 GHz at only 1.7 mm, almost covering the entire Ku band. The combination of Ag nanoparticles and multishell structure can significantly enhance the electromagnetic wave attenuation capability, which supplies a serviceable reference for the microstructure and material design of nano-absorbers.

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Realizing Maximum Microwave Absorption of Poly(3,4-ethylenedioxythiophene) with a Data-Driven Method

Cited by 25 publications

References 56 publications

Data‐driven methodology to realize strong and broadband microwave absorption properties of polymer‐fly ash cenosphere composite

Data‐driven methodology to realize strong and broadband microwave absorption properties of polymer‐fly ash cenosphere composite

Electromagnetic Data-Driven Approach to Realize the Best Microwave Absorption Characteristics of MXene-Based Nanocomposites

Ag Nanoparticles Embedded in Multishell Carbon Nanoparticles for Microwave Absorption

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