Facile and Scalable Fabrication of High-Performance Microsupercapacitors Based on Laser-Scribed Heteroatom-Doped Porous Graphene.

This study proposes an efficient, facile, and scalable strategy to synthesize heteroatom-doped porous graphene via laser direct writing on the precursor-doped polyimide (PI) film, which is fabricated for the first time through incorporating PI powder and precursors with sodium carboxymethyl cellulose (CMC) binder by a drop-casting and low-temperature drying process. The resulting microsupercapacitors (MSCs) based on the as-prepared heteroatom-doped porous graphene exhibit remarkable capacitive performance. The typical boron-doped MSC prepared on borax-doped polyimide film possesses an ultrahigh areal capacitance of 60.

Sea urchin-like microstructure pressure sensors with an ultra-broad range and high sensitivity.

Sensitivity and pressure range are two significant parameters of pressure sensors. Existing pressure sensors have difficulty achieving both high sensitivity and a wide pressure range. Therefore, we propose a new pressure sensor with a ternary nanocomposite FeO/C@SnO.

Controlling information duration on rewritable luminescent paper based on hybrid antimony (III) chloride/small-molecule absorbates.

Controlling the duration that information lasts on paper so that it disappears as desired is crucial for information security. However, this area is rarely studied. Here, we report [TEMA]SbCl (, TEMA = methyltriethylammonium), [TEA]SbCl (, TEA = tetraethylammonium), [TEBA]SbCl (, TEBA = benzyltriethylammonium), and [PhP]SbCl (, PhP = tetraphenylphosphonium) with structure-dependent reversible photoluminescent switching induced by the absorption and thermal release of small guest molecules including HO, methanol, and ethylene glycol.

UHF Signal Processing and Pattern Recognition of Partial Discharge in Gas-Insulated Switchgear Using Chromatic Methodology.

The ultra-high frequency (UHF) method is widely used in insulation condition assessment. However, UHF signal processing algorithms are complicated and the size of the result is large, which hinders extracting features and recognizing partial discharge (PD) patterns. This article investigated the chromatic methodology that is novel in PD detection.