A novel composite PCM was facilely synthesized, which exhibited enhanced absorption peaks at visible and near-infrared region, and the photothermal conversion and storage efficiency was outstanding under simulated and actual sunlight irradiation.

No abstract

No abstract

An oxime containing fluorescent probe based on a BODIPY scaffold was successfully designed and used for HClO determination with rapid response, low detection limits and high selectivity. Confocal fluorescence microscopy demonstrated that the probe could permeate the mitochondria and made possible the fast fluorescent imaging of endogenous HClO.

Artificial construction of amorphous photonic structures (APSs) is an important approach for obtaining noniridescent structural colors and shows a great potential for practical applications in paints, textile coloring, display, or other color-related fields. However, the structural colors are usually dim because of the influence of incoherent scattering, and the point contact among the microspheres leads to poor structural stability. This paper presents an innovative strategy for constructing noniridescent structural color coatings with high color visibility, good structural stability, and self-healing properties by combining APSs with polymers. Color visibility is significantly improved without the addition of black light-absorbing substances because of the inherent properties of polysulfide microspheres. At the same time, the introduction of waterborne polyurea in the system enhanced the structural stability and imparted the self-healing properties. The prepared coatings can be applied to various substrates and even to the coloration of soft fabrics, which not only achieves excellent performance but can also be easily patterned on the bulk scale.

A flexible shape memory composite for electrothermal energy storage and motion sensing applications.

Responsive photonic crystals have attracted considerable attention. The responsiveness is usually achieved through the variation of reflection wavelengths based on Bragg diffraction. However, distinguishing external stimuli from intrinsic angle dependence is a challenge. Herein, a novel thermal-responsive photonic crystal was constructed based on the synergistic effect of the low-angle dependence of SnO 2 inverse opals and a thermochromic phase change system. The organic thermochromic phase change system was obtained by mixing the fluoran dye (heat-sensitive red TF-R 2 ), bisphenol A, and aliphatic alcohols in a certain proportion. By filling the thermochromic phase change system into SnO 2 inverse opals, the thermal-responsive photonic crystal was fabricated. Through simple external thermal stimulation, the mutual transformation of low-angle-dependent structural color and pigmentary color is realized and inverse opal patterns can be displayed and hidden. The proposed system, while preventing the interference of the observation angle to the thermal stimulation, shows potential application prospect in the fields of anti-counterfeiting and information encryption fields.

Exploration of advanced carbon anode material is the key to circumventing the sluggish kinetics and poor rate capability for potassium ion storage. Herein, a synergistic synthetic strategy of engineering both surface and structure is adopted to design N, S co‐doped carbon nanotubes (NS‐CNTs). The as‐designed NS‐CNTs exhibit unique features of defective carbon surface, hollow tubular channel, and enlarged interlayer space. These features significantly contribute to a large potassium storage capacity of 307 mA h g−1 at 1 A g−1 and a remarkable rate performance with a capacity of 151 mA h g−1 even at 5 A g−1. Furthermore, an excellent cyclability with 98% capacity retention after 500 cycles at 2 A g−1 is also achieved. Systematic analysis by in situ Raman spectroscopy and ex situ TEM demonstrates the structural stability and reversibility in the charge–discharge process. Although the kinetics studies reveal the capacitive‐dominated process for potassium storage, density functional theory calculations provide evidence that N, S co‐doping contributes to expanding the interlayer space to promote the K‐ion insertion, improving the electronic conductivity, and providing ample defective sites to favor the K‐ion adsorption.