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In this work, a room temperature liquid metal alloy (Galinstan) and tungsten diselenide (WSe 2) composite anode (LM x @WSe 2) were synthesized utilizing a one-step hydrothermal method. Through a comprehensive characterization process, including XRD, SEM, HRTEM, Raman spectroscopy, XPS, and BET, the structural and morphological properties of the synthesized composites were extensively explored. The liquid metal alloy was observed to combine effectively with WSe 2 via electrostatic adsorption, coordination, and additional bonding methods. Furthermore, it displayed high fluidity, deformability, and chemical stability. Consequently, the alloy promoted the repair of cracked surface areas in the electrode material and reduced internal oxidation-reduction reactions, leading to improved electrochemical performance during repeated lithium-ion insertion and extraction cycles. After 500 cycles at a current density of 1 A g−1, this composite electrode retained a capacity of 224.5 mAh g−1. Impressively, at a low temperature of − 10 °C, it maintained a capacity of 290 mAh g−1 after 50 cycles at a current density of 0.2 A g−1. Our research may open avenues for addressing mechanical difficulties experienced in flexible electronic devices and self-healing electronic circuits exposed to chemical reaction processes. • Liquid metal alloy (Galinstan) /WSe 2 composite anode was synthesized for LIBs. • Successful combination of liquid metal alloy and WSe 2 via various bonding methods. • High fluidity, deformability, and chemical stability observed in the alloy. • Electrochemical performance with superior capacity retention & low-temp. stability. [ABSTRACT FROM AUTHOR]

Abstract: Titania–alumina supports were prepared successfully using the ultrasound-assisted precipitation method. The resulting supports were characterized by fourier transform infrared analysis (FTIR), scanning electron microscope (SEM), X-ray diffraction (XRD) and N2 physisorption. The effects of precipitants, washing method and the addition of surfactant CTAB were studied. The supports prepared with NH4HCO3 showed better textural properties compared with that with NH3·H2O, which was attributed to the low NH4 + release rate of NH4HCO3. TiO2–Al2O3 support with S BET =283m2/g, V p =2.34mL/g and D p =33.0nm was obtained with this modified precipitation method. [ABSTRACT FROM AUTHOR]