Hierarchical Cellular Engineering toward Exceptional Mechanical and Thermal Insulating Aerogels DOI
Yang Ding, Xin Song,

Fangjun Shao

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: March 30, 2025

Aerogels are considered highly promising materials for superior thermal insulation across building, electric vehicle, and textile area. Nevertheless, the inherent deficiency in mechanical compressibility stability of sole ceramic aerogels poses significant challenges to their further application. The hybrid with an oriented cellular structure parallel walls connected by bridges orthogonal direction presented through a physical process. fibrous frames composed bacterial cellulose constructed enhanced montmorillonite nanosheets silica sols self-assembly process achieve high (>99% strain) robustness (1.015 MPa), retaining 97.8% height retention under considerable compressive strain 50% 500 cycles. Moreover, demonstrate remarkable set properties, such as being superlight (8.85 mg·cm–3 99.39% porosity), excellent insulating performance (λ = 0.0131 W·m–1·K–1), wide working temperature range (−196 200 °C), self-extinguishing, self-cleaning/hydrophobic (126.4° WCA). successful synthesis provides more opportunities design robust management.

Language: Английский

A NiFeSn oxyhydroxide electrocatalyst wet gel for highly efficient water electrolysis in alkaline media DOI
Taehee Kim,

Hwapyung Jung,

Haryeong Choi

et al.

Nano Energy, Journal Year: 2024, Volume and Issue: 124, P. 109428 - 109428

Published: Feb. 27, 2024

Language: Английский

Citations

20

Rigid amine-incorporated silica aerogel for highly efficient CO2 capture and heavy metal removal DOI
Haryeong Choi,

Hyug Hee Han,

Vinayak G. Parale

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 483, P. 149357 - 149357

Published: Feb. 6, 2024

Language: Английский

Citations

19

Tough and Elastic Anisotropic Triboelectric Materials Enabled by Layer‐by‐Layer Assembly DOI Open Access
Tao Liu,

Zhuo Zhao,

Rongrong Liang

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 9, 2025

Abstract The synergistic integration of elastic porous material with self‐powered sensing capabilities holds immense promise for smart wearable devices. However, the intrinsic contradiction between elasticity and strength has hindered mechanical performance materials. This research reports a diffusion‐driven layer‐by‐layer assembly strategy to enhance As prerequisite, anisotropic layered structure natural materials is leveraged endow fundamental elasticity. Subsequently, vacuum chemically‐assisted enhanced solvent diffusion are sequentially employed assemble conductive layers on cellulose from inside out. endows triboelectric (TM) exceptional properties (elastic strain range 0–80%, compressive reaching 4.55 MPa). Utilizing TM as material, sensor response time 48 ms sensitivity 0.57 kPa −1 constructed. Moreover, application in helmet demonstrated, enabling remote monitoring traceability head impact events. overcome incompatibility high offers promising avenues their utilization

Language: Английский

Citations

3

Passive Isothermal Flexible Sensor Enabled by Smart Thermal‐Regulating Aerogels DOI Open Access

Shenjie Zhong,

Bohan Lu,

Duan‐Chao Wang

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 5, 2025

Environmentally induced sensor temperature fluctuations can distort the outputs of a sensor, reducing their stability during long-term health monitoring. Here, passive isothermal flexible is proposed by using hierarchical cellulose aerogel (HCA) as top tribonegative layer, which allows to adapt dynamic thermal environments through both radiative cooling and heat insulation. The effect cool down temperatures in summer, while hollow microfibers HCA provide ultralow conductivity reduce internal loss winter. prepared capable maintaining rated working over an extensive range 0-100 °C, demonstrating for gripping hot cold objects. While monitoring human movements under direct sunlight, conventional rose 12.3 whereas experienced increase only 0.3 °C. Therefore, this work presents promising strategy adapting environments, enabling wearable electronics function effectively conditions.

Language: Английский

Citations

2

Superhydrophobic Highly Flexible Triple-Network Polyorganosiloxane-Based Aerogels for Thermal Insulation, Oil–Water Separation, and Strain/Pressure Sensing DOI
Yijun Wang, Shuang Xi, Bowen Zhou

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(23), P. 30324 - 30335

Published: May 28, 2024

Polyvinylpolymethylsiloxane (PVPMS)/polydimethylsiloxane (PDMS) copolymer aerogels were synthesized via consecutive radical polymerization and cohydrolytic polycondensation of vinylmethyldimethoxysilane dimethyldimethoxysilane, followed by supercritical drying or ambient pressure drying. The resultant PVPMS/PDMS exhibit a highly porous, tunable triple-network structure consisting interlinked hydrocarbon polymers, PVPMS PDMS. These display superhydrophobicity (151°), low density (109 mg cm–3), thermal conductivity (29.8 mW m–1 K–1), adjustable pore structure. combination good machinability, conductivity, excellent compressive elasticity bending flexibility, efficient organic solvent adsorption gives these broad application prospects in insulation oil–water separation. In addition, PVPMS/PDMS/carbon nanotube (CNT) composite obtained incorporating the conductive CNTs, vacuum PVPMS/PDMS/CNT aerogel exhibits high sensitivity with sensing range strain applications.

Language: Английский

Citations

9

Advanced Stretchable Aerogels and Foams for Flexible Electronics and Beyond DOI Open Access
Xing Liang, Qi Sun, Xiaoyu Zhang

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(48)

Published: Aug. 18, 2024

Abstract With the increasing demands for artificial intelligence, robotics, electronic skin, healthcare, and energy storage/conversion, research focus on flexible electronics has started to shift from being merely bendable rollable stretchable. In recent years, stretchable aerogels foams have drawn significant attention in field of due their unique porous structures, low density, high porosity, flexibility. This work provides a comprehensive review state‐of‐the‐art developments foams, encompassing preparation, properties, applications. The preparation methods, typical structures stretching principle, relationship between stretchability, other properties are investigated. Their latest applications strain/pressure sensors, electrodes conductors, chemical sensors biosensors, supercapacitors, batteries, triboelectric nanogenerators, electromagnetic shielding, microwave absorption, thermal management, adsorption, separation/filtration, shape memory introduced. Furthermore, challenges opportunities summarized. guideline development next‐generation high‐performance based materials.

Language: Английский

Citations

9

Double‐Crosslinked Organic–Inorganic Hybrid Polyimide Aerogel Composites with Ultra‐Robust Toughness for Foldable Mechanical‐Thermal‐Coupled Protection DOI Open Access
Jia Chen, Xianbo Hou, Zhilin Chen

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 24, 2025

Abstract Aerogels excel in thermal insulation due to their porous structure, but limited mechanical strength restricts broader applications. Thus, the development of aerogel composites for equipment/personnel against and hazards extreme environments necessitates more design paradigm. Herein, a novel double‐crosslinked polyimide composite (PIAC) with an organic–inorganic hybridization approach is prepared. This composite, incorporating amino‐modified SiO 2 nanoparticles reduce shrinkage/density, offers exceptional from ‐110 °C 300 °C, flame resistance, low dielectric constant (1.4), conductivity 0.0357 W (m K) −1 self‐cleaning properties. Meanwhile, PIAC allows be manipulated into various shapes withstand repeated folding unfolding without damage. It boasts tensile 8.5 MPa (2.6‐fold enhancement) nominal elongation at break 54% (17.5‐fold enhancement), representing highest fracture toughness 32.99 × 10 6 kJ m −3 (47.8‐fold observed materials date. With maximum energy absorption reaching 7.46 MJ when dissipating high‐impact forces, its substantial enhancement capacity 60% over predecessor, not only bolster matrix also amplify strain rate strengthening effect. The fabricated poised foldable mechanical‐thermal‐coupled protection where such attributes are highly coveted.

Language: Английский

Citations

1

3D printed colloidal Aerogels: Principle, Process, Performance, and perspective DOI
Qing‐Qing Cheng, Zhizhi Sheng, Yafei Ding

et al.

Progress in Materials Science, Journal Year: 2025, Volume and Issue: unknown, P. 101456 - 101456

Published: Feb. 1, 2025

Language: Английский

Citations

1

Identifying gaps in practical use of epoxy foam/aerogels: review - solutions and prospects DOI

Tomy Muringayil Joseph,

Сейтхан Азат, Ehsan Kianfar

et al.

Reviews in Chemical Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: March 3, 2025

Abstract Epoxy foam/aerogel materials (EP-AGs) have potential in the aerospace, construction, and energy industries, allowing development of lightweight high-performance products for a wide range applications. Research interest developing EP-AGs is increasing as it has to create greener more sustainable making various products. Several commercial applications techniques creating, processing, drying them already been reported. The introduction into value-added one most promising options but suffers from lack knowledge about relationships between microstructure properties. current obstacles their use industrial sector challenges related factory scale-up are also taken account. hindered by critical gaps applicational processing complexity, such scaling up laboratory large-scale production, optimizing synthesis techniques, standardized testing protocols. review focuses on complexities further difficulties associated with improve casting burdens, cost-effectiveness, accessibility This examines synthesizing used make special materials, practices, technological barriers would face.

Language: Английский

Citations

1

Flexible and high-strength MXene/polyimide nanofiber aerogel membranes achieving infrared stealth through combined thermal control and low emissivity DOI
Yanyan Wang, Nan‐Sim Pang, Siyu Liu

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 498, P. 155332 - 155332

Published: Aug. 30, 2024

Language: Английский

Citations

6