Tree Ring-Inspired Fibrous Helix for UV Shielding and Warning Based on Photo-electricity-Acoustic Energy Conversion

Wang, Yan; Guo, Ziyi; Xiong, Jie; Liu, Jingchong; Zhao, Yi; Guo, Fengyun

doi:10.1007/s42765-022-00248-2

Cited by 7 publications

(2 citation statements)

References 29 publications

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“…Notably, the CNTs@HPC (10HF, DA: LTA = 6:1) sample maintains good symmetry and quasi-rectangular shape, even at a high scan rate of 200 mV s −1 , suggesting a small equivalent series resistance and a rapid ion response rate. [51] Additionally, the redox peak remains consistent even with increasing scan rates, indi-cating the high stability of nickel oxides within the CNTs during charge and discharge processes. Figure S20a-e, Supporting Information shows the contribution of EDLC in CNTs @ HPC (10 HF, DA: LTA = 6:1) at different scan rates, while Figure S20f, Supporting Information exhibits the percentage of contribution of EDLC and pseudopocapacitance at different scan rates.…”

Section: Resultsmentioning

confidence: 83%

Hierarchical Hollow Carbon Particles with Encapsulation of Carbon Nanotubes for High Performance Supercapacitors

Song,

Li,

Wang

et al. 2023

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A novel and sustainable carbon‐based material, referred to as hollow porous carbon particles encapsulating multi‐wall carbon nanotubes (MWCNTs) (CNTs@HPC), is synthesized for use in supercapacitors. The synthesis process involves utilizing LTA zeolite as a rigid template and dopamine hydrochloride (DA) as the carbon source, along with catalytic decomposition of methane (CDM) to simultaneously produce MWCNTs and COx‐free H2. The findings reveal a distinctive hierarchical porous structure, comprising macropores, mesopores, and micropores, resulting in a total specific surface area (SSA) of 913 m2 g−1. The optimal CNTs@HPC demonstrates a specific capacitance of 306 F g−1 at a current density of 1 A g−1. Moreover, this material demonstrates an electric double‐layer capacitor (EDLC) that surpasses conventional capabilities by exhibiting additional pseudocapacitance characteristics. These properties are attributed to redox reactions facilitated by the increased charge density resulting from the attraction of ions to nickel oxides, which is made possible by the material's enhanced hydrophilicity. The heightened hydrophilicity can be attributed to the presence of residual silicon‐aluminum elements in CNTs@HPC, a direct outcome of the unique synthesis approach involving nickel phyllosilicate in CDM. As a result of this synthesis strategy, the material possesses excellent conductivity, enabling rapid transportation of electrolyte ions and delivering outstanding capacitive performance.

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Section: Resultsmentioning

confidence: 83%

Hierarchical Hollow Carbon Particles with Encapsulation of Carbon Nanotubes for High Performance Supercapacitors

Song,

Li,

Wang

et al. 2023

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“…Traditional slurry electrodes with the ubiquitous shortcoming is chemically inert binders have to be added, which leads to numerous "invalid areas" and restricts further progress. [6] In comparison with powder-based material, the selfsupported nanostructured electrode is regarded as a hopeful candidate thank to break away from the bondage of additional additives. Nevertheless, the severe structure detachment originates from the difference of thermal expansion coefficient between the active material and conductive substrate, which causes adversely affects the power delivery and cycling stability under hightemperature environments.…”

Section: Introductionmentioning

confidence: 99%

Wafer Scale Gallium Nitride Integrated Electrode Toward Robust High Temperature Energy Storage

Lv,

Wang,

et al. 2024

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Gallium Nitride (GaN), as the representative of wide bandgap semiconductors, has great prospects in accomplishing rapid charge delivery under high‐temperature environments thanks to excellent structural stability and electron mobility. However, there is still a gap in wafer‐scale GaN single‐crystal integrated electrodes applied in the energy storage field. Herein, Si‐doped GaN nanochannel with gallium oxynitride (GaON) layer on a centimeter scale (denoted by GaN NC) is reported. The Si atoms modulate electronic redistribution to improve conductivity and drive nanochannel formation. Apart from that, the distinctive nanochannel configuration with a GaON layer provides adequate active sites and extraordinary structural stability. The GaN‐based supercapacitors are assembled and deliver outstanding charge storage capabilities at 140 °C. Surprisingly, 90% retention is maintained after 50 000 cycles. This study opens the pathway toward wafer‐scale GaN single‐crystal integrated electrodes with self‐powered characteristics that are compatible with various (opto)‐electronic devices.

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An All‐Stretchable, Ultraviolet Protective, and Electromagnetic‐Interference‐Free E‐Textile

Dong,

Peng,

Long

et al. 2023

Adv Funct Materials

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Flexible and skin‐mountable electronics have drawn tremendous research attention with the booming of smart medical systems and wearing technologies, however, their environmental adaptability to electromagnetic and solar radiation has long been neglected. Herein, a novel health monitoring e‐textile with robust ultraviolet (UV) protecting and strong electromagnetic interference (EMI) shielding performance is rationally developed on an ultraelastic and bilayered nonwoven textile. Via the respective incorporation of silver flake‐modified liquid metal (AgLM) and silver nanoparticles (AgNPs) on each side of a permeable substrate, a Janus sensing layer with electrophysiological monitoring function, Joule heating ability, and excellent EMI shielding capability (up to 38.5 dB in X band) is first fabricated. Elastic microfibers embedded with sensitive photochromic microcapsules are then in situ assembled on the bioelectric‐sensing layer, achieving a bilayered e‐textile with a reversible UV‐chromic property and an extraordinary UV protection factor (UPF) of 335.56. The developed all‐stretchable and UV‐EMI proof e‐textile is utilized as a safe and comfortable on‐skin electronic to provide point‐of‐care health regulation under complex UV/EMI radiative environments. Specifically, stable Joule heating performance and accurate monitoring of electrocardiogram (ECG) and surface electromyography (sEMG) are simultaneously obtained, demonstrating promising applications in multifunctional and robust wearing electronics.

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Tree Ring-Inspired Fibrous Helix for UV Shielding and Warning Based on Photo-electricity-Acoustic Energy Conversion

Cited by 7 publications

References 29 publications

Hierarchical Hollow Carbon Particles with Encapsulation of Carbon Nanotubes for High Performance Supercapacitors

Hierarchical Hollow Carbon Particles with Encapsulation of Carbon Nanotubes for High Performance Supercapacitors

Wafer Scale Gallium Nitride Integrated Electrode Toward Robust High Temperature Energy Storage

An All‐Stretchable, Ultraviolet Protective, and Electromagnetic‐Interference‐Free E‐Textile

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