Fully Active Bimetallic Phosphide ZnGeP: A Novel High-Performance Anode for Na-Ion Batteries Coupled with Diglyme-Based Electrolyte.

Metal phosphides are promising candidates for sodium-ion battery (SIB) anode owing to their large capacities with suitable redox potential, while the reversibility and rate performances are limited due to some electrochemically inactive transition-metal components and sluggish reaction kinetics. Here, we report a fully active bimetallic phosphide ZnGeP anode and its composite (ZnGeP-C) with excellent performance attributed to the Zn, Ge, and P components exerting their respective Na-storage merit in a cation-disordered structure. During Na insertion, ZnGeP undergoes an alloying-type reaction, along with the generation of NaP, NaP, NaGe, and NaZn phases, and the uniform distribution of these phases ensures the electrochemical reversibility during desodiation.

Fabrication of hierarchical MoO@NiCo(OH) core-shell arrays on carbon cloth as enhanced-performance electrodes for asymmetric supercapacitors.

Advanced integrated electrode materials with designedcore-shell nanostructureplay a crucial role for the application in alternative energy storage system. Herein, hierarchical MoO@NiCo(OH) core-shell arrays were equably grown on face of carbon cloth after a series of hydrothermal growth and electrochemical deposition processes. This core-shell arrays structure can not only provide large electroactive surface areas and high speed ion transport paths, but also keep the material structure stable during the process of redox reactions.

"Carbon quantum dots-glue" enabled high-capacitance and highly stable nickel sulphide nanosheet electrode for supercapacitors.

A facile "carbon quantum dots glue" strategy for the fabrication of honeycomb-like carbon quantum dots/nickel sulphide network arrays on Ni foam surface is successfully demonstrated. This design realizes the immobilization of nanosheet arrays and maintains a strong adhesion to the collector, forming a three-dimensional (3D) honeycomb-like architecture. Thanks to the unique structural advantages, the resulting bind-free electrode with high active mass loading of 6.

Core-shell coaxially structured NiCoS@TiOnanorod arrays as advanced electrode for solid-state asymmetric supercapacitors.

An integrated electrode of core-shell coaxially structured NiCoS@TiOnanorod arrays/carbon cloth (NiCoS@TiO@CC) have been fabricated, via a two-step hydrothermal method. Comprehensive structural and compositional analyzes are performed to understand the effects of the NiCoSshell on the TiOcore. Such core-shell arrays structure can significantly provide abundant electroactive sites for redox reactions, convenient ion transport paths, and favorable structure stability.

Novel synthesis of hierarchical NiGaO@MnO core-shell hetero-nanostructured nanowall arrays on carbon cloth for high-performance all-solid-state asymmetrical supercapacitors.

A hierarchical NiGaO@MnO core-shell nanowall arrays have been grown on carbon cloth by stepwise design and fabrication. Ultrathin MnO nanoflakes are revealed to grow uniformly on the porous NiGaO nanowalls with many interparticle mesopores, resulting in the formation of 3D core-shell nanowall arrays with hierarchical architecture. The as-synthesized product as a binder-free electrode possesses a high specific capacitance of 1700 F g at 1 A g and 90% capacitance retention after 10,000 cycles at 10 A g.

Direct deposition of two-dimensional MXene nanosheets on commercially available filter for fast and efficient dye removal.

Generally, the efficiency of water purification can be greatly increased by a high-flux membrane separation technology. One major challenge in the application of this technology is to achieve high removal efficacy of target pollutants with elevated water flux. Here we report a novel self-assembled composite by depositing two-dimensional MXene nanosheets on a commercialized mixed cellulose ester filter (as designated as MCM).