Nano-Micro Letters最新文献

A hierarchical interconnected NiMoN (HW-NiMoN-2h) was successfully prepared based on a rational combination of hydrothermal and water bath processes.

HW-NiMoN-2h exhibited high hydrogen evolution reaction (HER) activity due to its large specific surface area and good stability due to its enhanced mechanical strength.

In 1 M KOH seawater, HW-NiMoN-2h delivered current density of 1 A cm⁻² for HER at an overpotential of 130 mV and showed excellent stability over 70 h at 1 A cm⁻².

Highly performed perovskite solar cells are achieved via introducing organic–inorganic CL–NH complex as multifunctional interfacial layer.

CL–NH complex not only reduces oxygen vacancies on the surface of SnO₂ but also regulates film crystallization, resulting in a superior device efficiency of 23.69%.

The resulting device performs excellent stability with 91.5% initial power conversion efficiency retained after 500 h light illumination.

A bilayer dielectric film is prepared via coating boron nitride nanosheets (BNNSs) by solution casting on the surface of polyethylene terephthalate (PET) film.

The BNNS layer acts as the efficient barrier layer to suppress the charge injection, thereby making the surface-modified PET films exhibit excellent breakdown strength and electrostatic energy storage performance.

The surface coating methods are accessible and suitable for large-scale roll-to-roll process production of dielectric films.

Proposing a one-step pyrolysis strategy to fabricate a novel bilayer-shelled N, O-doped hollow porous carbon microspheres (NOHPC) anode.

The optimized NOHPC anode displays a high K-storage capacity of 325.9 mAh g⁻¹ at 0.1 A g⁻¹ and excellent rate performance (201.1 mAh g⁻¹ at 5 A g⁻¹ after 6000 cycles).

The assembled NOHPC//hollow porous activated carbon microspheres (HPAC) potassium ion hybrid capacitors deliver a high energy density of 90.1 Wh kg⁻¹ at a power density of 939.6 W kg⁻¹ even over 6000 cycles.

Carbon fiber (CF) scaffolds with horizontally aligned, diagonally aligned and vertically aligned structure were fabricated via magnetic field-assisted Tetris-style stacking and carbonization process.

The obtained CF scaffolds/ polydimethylsiloxane composites showed ultrahigh thermal conductivity (above 40 W m⁻¹ K⁻¹) in the fiber alignment direction.

Fibers with different alignment direction can be combined by multiple stacking and carbonization process, allowing for the efficient heat transfer along customized paths.

This food biopolymer-based biogel unites the challenging needs of elastic yet injectable wound dressing and skin bioelectronics in a single platform.

This is the first demonstration of a hydrogel dressing that satisfies both deep and superficial wounds, and for the accelerated healing of diabetic wounds.

Biogel-based flexible skin bioelectronic can serve as a “fever indicator” and monitoring human activities and tiny electrophysiological signals, providing important clinical information for the rehabilitation training of the wounded.

Imine groups in covalent organic framework (COF) films act as dual-active sites for humidity sensing, inducing an intrinsic enhanced mechanism of reversible protonated tautomerism via water molecule-induced hydrogen bonding.

The cis-ketoimine reciprocal isomerization induces a stretching vibration effect for the ordered conjugated conductive frame of COF films, realizing fast response, wide range, and high sensitivity characteristics for humidity detection.

Resistance changes of COF film-based sensors keep a strong linear relationship with low-range relative humidity, reflecting the quantitative sensing mechanism at the molecular level.