High acid-base tolerance and long storage time lanthanum cerium co-doped carbon quantum dots for Fe detection.

In this paper, lanthanum and cerium co-doped carbon quantum dots (LaCe-CQDs) was firstly synthesized by one step hydrothermal method. The obtained LaCe-CQDs shown sable fluorescence properties with pH values from 3 to 9 and after 4 weeks of storage. The average particle size of LaCe-CQDs, with excitation and emission wavelengths of 350 nm and 446 nm, is 3.

Multiple uniform lithium-ion transport channels in LiLaZrTaO/Ce(OH) modified polypropylene composite separator for high-performance lithium metal batteries.

Lithium (Li) metal anodes (LMAs) are regarded as leading technology for advanced-generation batteries due to their high theoretical capacity and favorable redox potential. However, the practical integration of LMAs into high-energy rechargeable batteries is hindered by the challenge of Li dendrite growth. In this work, nanoparticles of LiLaZrTaO (LLZTO) loaded with Ce(OH) (LLZTCO) were designed and synthesized by a hydrothermal method.

Controlled three-dimensional leaf-like NiCoO@NiCo layered double hydroxide heterostructures for oxygen evolution electrocatalysts in rechargeable Zn-air batteries.

Rechargeable zinc-air batteries (ZABs) have garnered attention as a viable choice for large-scale energy storage due to their advantageous characteristics, such as high energy density and cost-effectiveness. Strategies aimed at improving the kinetics of the oxygen evolution reaction (OER) through advanced electrocatalytic materials or structural designs can significantly enhance the efficiency and longevity of ZABs. In this study, we introduce a three-dimensional (3D) leaf-vein system heterojunction architecture.

Enhanced electrochemical performance in an aluminium doped δ-MnO supercapacitor cathode: experimental and theoretical investigations.

One of the biggest challenges faced by the layered manganese oxide MnO used as a supercapacitor cathode is the capacity fading caused by chemo-mechanical degradation and/or structural transformation occurring in the discharging/charging process. Here, based on systematical experimental measurements and theoretical calculations, we show that both the stability and rate performance of the δ-MnO supercapacitor cathode can be significantly enhanced by Al doping. Compared with pure δ-MnO, Al doping (δ-AlMnO) clearly improves the specific capacitance (7% enhancement at 0.

A Fast Charge/Discharge and Wide-Temperature Battery with a Germanium Oxide Layer on a TiC MXene Matrix as Anode.

A rapid charge/discharge secondary battery is critical in portable electronic devices and electric vehicles. Germanium, due to the metallic property and facile alloying reaction with lithium, displays great potential in fast charge/discharge batteries in contrast to other intercalation batteries. In order to accommodate the over 300% volume change, a 2D hybrid composite electrode consisting of a homogeneous, amorphous GeO layer bonded on TiC MXenes was successfully developed an industry available method.