Gradient-Nested Organic/Inorganic Aerogels Achieve High Mechanical Strength and Feedback-Tunable Microwave Absorption.

Xiao Liu, Zhike Si, Yongxin Qian, Lihong Wu, Xuefei Xu, Gengping Wan, Guizhen Wang

Abstract read

In one paragraph

Article in Research (Washington, D.C.), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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1citing papers in PubMed

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1 · What the graph read from it

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1 citing paper in PubMed.

Hollow MnFeSmall methods · 2026
Article

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5 · Who and what money

Authors and funding

7 authors.

Xiao LiuInstitute of Electromagnetic Protection Materials and Spectral Innovation Technology, State Key Laboratory of Tropic Ocean Engineering Materials and Materials Evaluation, School of Materials Science and Engineering, Hainan University, Haikou, Hainan 570228, China.

Zhike SiInstitute of Electromagnetic Protection Materials and Spectral Innovation Technology, State Key Laboratory of Tropic Ocean Engineering Materials and Materials Evaluation, School of Materials Science and Engineering, Hainan University, Haikou, Hainan 570228, China.

Yongxin QianInstitute of Electromagnetic Protection Materials and Spectral Innovation Technology, State Key Laboratory of Tropic Ocean Engineering Materials and Materials Evaluation, School of Materials Science and Engineering, Hainan University, Haikou, Hainan 570228, China.

Lihong WuInstitute of Electromagnetic Protection Materials and Spectral Innovation Technology, State Key Laboratory of Tropic Ocean Engineering Materials and Materials Evaluation, School of Materials Science and Engineering, Hainan University, Haikou, Hainan 570228, China.

Xuefei XuInstitute of Electromagnetic Protection Materials and Spectral Innovation Technology, State Key Laboratory of Tropic Ocean Engineering Materials and Materials Evaluation, School of Materials Science and Engineering, Hainan University, Haikou, Hainan 570228, China.

Gengping WanInstitute of Electromagnetic Protection Materials and Spectral Innovation Technology, State Key Laboratory of Tropic Ocean Engineering Materials and Materials Evaluation, School of Materials Science and Engineering, Hainan University, Haikou, Hainan 570228, China.

Guizhen WangInstitute of Electromagnetic Protection Materials and Spectral Innovation Technology, State Key Laboratory of Tropic Ocean Engineering Materials and Materials Evaluation, School of Materials Science and Engineering, Hainan University, Haikou, Hainan 570228, China.ORCID https://orcid.org/0000-0001-7308-2519

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The integration of multiband and multimode systems has substantially increased the complexity of electromagnetic interference, revealing critical limitations of existing absorbers in tuning efficiency and structural resilience. Here, we propose a nested microaerogel strategy to simultaneously improve the mechanical strength and microwave absorption (MA) performance of polyimide (PI) aerogel. By incorporating pomelo-peel-derived cellulose micronetworks and helical carbon nanocoil microaerogels to construct a gradient-nested framework, the long-standing issues of filler agglomeration and structural shrinkage in aerogels are effectively resolved. The aerogel combines low density, impact resistance, and thermal insulation with remarkable MA performance. The compressive strength reaches 1.3 MPa, which is about 20 times higher than pristine PI aerogel. Furthermore, it exhibits a minimum reflection loss of -50.16 dB, a broad effective absorption bandwidth of 7.44 GHz, and an ultrawide tunable range of 5.6 to 16.4 GHz. Benefiting from its exceptional mechanical properties and pressure-dependent tunability, the aerogel establishes a clear correlation between compression-induced capacitive response and MA performance. These features highlight its potential as a new generation of intelligent microwave absorbers with integrated sensing and adaptive regulation capabilities.

Identifiers

PMID41541568

DOI10.34133/research.1074

PMCPMC12799915

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.