Machine Learning Driven Optimization of Electrolyte for Highly Reversible Zn-Air Batteries with Superior Long-Term Cycling Performance.

Aqueous alkaline Zn-air batteries (ZABs) have garnered widespread attention due to their high energy density and safety, however, the poor electrochemical reversibility of Zn and low battery round-trip efficiency strongly limit their further development. The manipulation of an intricate microscopic balance among anode/electrolyte/cathode, to enhance the performance of ZABs, critically relies on the formula of electrolytes. Herein, the Bayesian optimization approach is employed to achieve the effective design of optimal compositions of multicomponent electrolytes, resulting in the remarkable enhancement of ZAB performance.

UIO-66-NH as Photo-Assisted Li-O Battery Cathode for High-Current Discharge.

Li-O batteries (LOBs) have garnered significant attention in recent years due to high theoretical specific capacity, however, the sluggish charge-discharge reaction kinetics and rapid failure under high current densities have hindered their further application. This work presents a photo-responsive catalyst (UIO-66-NH) supported on carbon cloth, which could enhance the reaction kinetics of LOBs and improve the discharge capacity under high current densities. It demonstrates that under light, the overpotential decreases by 0.

Dynamic Modulation of LiO Growth in Li-O Batteries through Regulating Oxygen Reduction Kinetics with Photo-Assisted Cathodes.

Widely acknowledged that the capacity of Li-O batteries (LOBs) should be strongly determined by growth behaviors of the discharge product of lithium peroxide (LiO) that follows both coexisting surface and solution pathways. However until now, it remains still challenging to achieve dynamic modulation on LiO morphologies. Herein, the photo-responsive Au nanoparticles (NPs) supported on reduced oxide graphene (Au/rGO) have been utilized as cathode to manipulate oxygen reduction reaction (ORR) kinetics by aid of surface plasmon resonance (SPR) effects.

Coffee grounds derived N enriched microporous activated carbons: Efficient adsorbent for post-combustion CO capture and conversion.

N enriched microporous active carbons (CACs) were successfully obtained with coffee grounds as precursor and KOH as activator, which were used for the capture and conversion of CO from post-combustion. The influence of preparation parameters, such as the temperature of activation and KOH/carbon ratio on textural properties of CACs were studied. N adsorption-desorption, XRD, Raman, SEM and XPS were used for characterization of the CACs.

Supramolecular Hyaluronic Assembly with Aggregation-Induced Emission Mediated in Two Stages for Targeting Cell Imaging.

Supramolecular aggregation-induced emission (AIE) has become a research hotspot in cell imaging. Herein, supramolecular assembly with AIE effect was constructed in two stages, where adamantane modified tetraphenylethene self-assembly emitted weak fluorescence, and then after adding β-cyclodextrin modified hyaluronic acid, the formed nanoparticles enhanced AIE fluorescence for targeted cancer cell imaging.