Aerogels have many attractive properties but are usually costly and mechanically brittle, which always limit their practical applications. While efforts been made to reinforce the aerogels, most of reinforcement sacrifice transparency or superinsulating properties. Here we report superflexible polyvinylpolymethylsiloxane, (CH2CH(Si(CH3)O2/2))n, aerogels that facilely prepared from a single precursor vinylmethyldimethoxysilane vinylmethyldiethoxysilane without organic cross-linkers. The...

Because of ultralow thermal conductivity, excellent catalytic activity, and better heat resistance than silica aerogel, alumina-based aerogel has drawn great interest as insulators catalysts. However, it is too fragile sinters above 1000 °C (it shrinks drastically, >50%, leaves the surface area low 10–70 m2/g at 1300 °C), which badly limits its high-temperature applications. Herein, super heat-resistant, strong alumina aerogels are prepared via a novel acetone-aniline in situ water formation...

Abstract Neuromorphic visual system with image perception, memory, and preprocessing functions is expected to simulate basic features of the human retina. Organic optoelectronic synaptic transistors emulating biological synapses may be promising candidates for constructing neural morphological system. However, sensing wavelength range organic usually limits their potential in artificial multispectral perception. Here, retina‐inspired that present broadband responses covering ultraviolet,...

Abstract Highly stretchable porous materials are promising for flexible electronics but their fabrication is a great challenge. Herein, several kinds of highly conductive elastomers with low or negative Poisson’s ratios achieved by uniaxial, biaxial, and triaxial hot-pressing strategies. The reduced graphene oxide/polymer nanocomposite folded structures obtained uniaxial hot pressing exhibit high stretchability up to 1200% strain. Furthermore, the meta-elastomers reentrant combining biaxial...

Abstract Highly stretchable aerogel films are attractive for advanced next‐generation electronics. However, it is a great challenge to achieve high stretchability films. Here, several types of unprecedented ultra‐stretchable semiconducting polymer‐based with crimpled porous structures developed via crosslinking and template methods combined uniaxial biaxial pre‐stretching strategies. The obtained by exhibit ultrahigh up 100–200%, while those show 50%. resulting strain‐insensitive electrical...

Robust, highly thermally stable, MOx/(MOx–SiO2)/SiO2 core–shell nanostructured metal oxide aerogels with a MOx core and (MOx–SiO2)/SiO2 shell are produced via novel alkoxide chemical liquid deposition techniques. The nanostructure not only significantly reinforces the nanoparticles but also effectively inhibits crystal growth phase transition of upon heat treatment, which enhances resistance from approximate 400–800 °C up to 1000–1300 °C. resultant Al2O3, ZrO2, TiO2 can support at least 5800...

A facile yet versatile approach to transparent, highly flexible, machinable, superinsulating organic–inorganic hybrid aerogels is presented. This method involves radical polymerization of a single alkenylalkoxysilane obtain polyalkenylalkoxysilane, and subsequent hydrolytic polycondensation afford homogeneous, doubly cross-linked nanostructure consisting polysiloxanes hydrocarbon polymer units. Here we demonstrate that novel based on polyvinylpolysilsesquioxane (PVPSQ),...

Aerogels are porous materials but show poor mechanical properties and limited functionality, which significantly restrict their practical applications. Preparation of highly bendable processable aerogels with multifunctionality remains a challenge. Herein we report unprecedented superflexible based on polyvinylpolydimethylsiloxane (PVPDMS) networks, PVPDMS/polyvinylpolymethylsiloxane (PVPMS) copolymer PVPDMS/PVPMS/graphene nanocomposites by facile radical polymerization/hydrolytic...

Recently, many efforts have been made to develop various smart sensors. However, achieving flexible multifunctional sensors combining excellent sensing of temperature, strain, and pressure with a single material is still challenging. Here, we report unprecedented superhydrophobic ultraflexible reduced graphene oxide (rGO)/polyorganosiloxane aerogels high-performance temperature/strain/pressure based on these aerogels. GO nanosheets are first cross-linked (3-aminopropyl)triethoxysilane...

Silica-titania composite aerogels were synthesized by chemical liquid deposition of titania onto nanoporous silica scaffolds. This novel process was based on chemisorption partially hydrolyzed titanium alkoxides from solution nanoparticle surfaces and subsequent hydrolysis condensation to afford nanoparticles the surface. The is homogeneously distributed in silica-titania aerogels, content can be effectively controlled regulating cycles. resultant aerogel with 15 cycles possessed a high...

We report new polyorganosiloxane aerogels with superhydrophobicity, high elasticity, and bendability based on polyvinyl-poly(dimethylsiloxane) (PVPDMS)/polymethylsilsesquioxane (PMSQ). They are synthesized by a radical polymerization/co-polycondensation strategy that involves polymerization of vinyldimethylmethoxysilane to obtain chainlike polyvinyldimethylmethoxysilane (PVDMMS) polymers followed hydrolytic co-polycondensation PVDMMS methyltrimethoxysilane combined ambient pressure drying...

Abstract Broad‐range‐response pressure‐sensitive wearable electronics are urgently needed but their preparation remains a challenge. Herein, we report unprecedented bioinspired based on stretchable and superelastic reduced graphene oxide/polyurethane nanocomposite aerogels with gradient porous structures by sol‐gel/hot pressing/freeze casting/ambient pressure drying strategy. The structure hot‐pressed layer promotes strain transfer resistance variation under high pressures, leading to an...

Abstract Highly sensitive self‐powered stretchable electronic skins with the capability of detecting broad‐range dynamic and static pressures are urgently needed increasing demands for miniaturized wearable electronics, robots, artificial intelligence, etc. However, it remains a great challenge to achieve this kind skins. Here, unprecedented battery‐type all‐in‐one novel structure composed pressure‐sensitive elastic vanadium pentoxide (V 2 O 5 ) nanowire‐based porous cathode, polyurethane...

Abstract MXene‐based aerogels are promising candidates for wearable electronics due to their unique structures and properties. However, the reported show poor stretchability, significantly restricting applications in electronics. Herein, unprecedented highly stretchable with crimpled reentrant microstructures developed via synergistic assembly of MXene flexible polymers combined uniaxial biaxial hot‐pressing strategies. The uniaxially hot‐pressed meta‐aerogels compressed combine ultrahigh...

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...

Aerogels have attracted great interest for their unique properties, but mechanical brittleness and poor functionality highly limit practical applications. Herein, we report unprecedented superelastic multifunctional aminosilane-crosslinked reduced graphene oxide (AC–rGO) aerogels that are prepared via a facile scalable strategy involving simultaneous crosslinking reducing of nanosheets with different kinds aminosilanes C–N coupling hydrolytic polycondensation reactions. It is found...

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,...

Resilient, fire-retardant and mechanically strong polyimide-polyvinylpolymethylsiloxane (PI-PVPMS) composite aerogels have been prepared via stepwise chemical liquid deposition (SCLD). The synthesis is based on the formation of PI-PVPMS crosslinked network structure with (3-aminopropyl)trimethoxysilane (APTMS) as a coupling agent to provide reactive sites backbone. We successfully realize PI in-situ growth whole super-flexible PVPMS gel skeleton this simple method. effect APTMS amount time...

Recently, with the increasing demand for artificial skins and human bodily motion/physical signals monitoring, flexible pressure sensors a wide detection range are urgently needed. Transparent stretchable gels ionic conductivities considered to be ideal candidates sensors. However, gel-based usually show relatively narrow range, which significantly limits their practical applications. Herein, we report an unprecedented bioinspired highly modulus/conductivity-dual-gradient poly(ionic liquid)...