Organic-Inorganic Coupling Strategy: Clamp Effect to Capture Mg for Aqueous Magnesium Ion Capacitor.

The rapid transport kinetics of divalent magnesium ions are crucial for achieving distinguished performance in aqueous magnesium-ion battery-based energy storage capacitors. However, the strong electrostatic interaction between Mg with double charges and the host material significantly restricts Mg diffusivity. In this study, a new composite material, EDA-MnO with double-energy storage mechanisms comprising an organic phase (ethylenediamine, EDA) and an inorganic phase (manganese sesquioxide) was successfully synthesized via an organic-inorganic coupling strategy.

Experimental Analysis of the Magnetic Leakage Detection of a Corroded Steel Strand Due to Vibration.

The self-magnetic flux leakage (SMFL) detection technique has great potential in the corrosion detection of bridge stay cables due to its advantages of small testing equipment, high accuracy, and fast testing rate. However, the vibration effect in the cable's SMFL detection is unclear. To address this, the influence of vibration on the magnetic field distribution of cable structure is analyzed theoretically.

Accelerated redox conversion of an advanced Zn//Fe-CoO battery by heteroatom doping.

Herein, Fe-doped CoO (Fe-CoO) was prepared to solve the issues of poor electrical conductivity and the lack of active sites in CoO materials. Due to having similar radius and physical/chemical properties to Co, Fe is an ideal choice for doping CoO, as it can improve intrinsic conductivity without causing severe lattice distortion. Oxygen vacancies are gradually formed as doping reactions occur to maintain electric neutrality.