Urchin-like AlOOH microspheres with large specific surface area were successfully synthesized by a one-pot chemical induced solvothermal method. Thioglycolic acid (TGA) was used as inductive agent to fabricate AlOOH with various morphologies. Al(OH)3–TGA clusters played an important role in the formation of AlOOH with unique spherical morphology. The preparation parameters such as reaction time, reaction temperature, and the volume ratio of deionized water to ethanol influenced the formation of AlOOH microspheres. Urchin-like AlOOH microspheres with uniform morphology were created through reaction for 20 h at either 150 or 220 °C. The specific surface area and pore-size distribution of urchin-like AlOOH were determined by N2 absorption–desorption measurement, indicating that the AlOOH microspheres exhibited porous properties and a large specific surface area of 319.15 m2 g−1. A possible formation mechanism for the urchin-like AlOOH microspheres was proposed. Urchin-like AlOOH spheres prepared at 220 °C for 20 h revealed high efficiency for the removal of Congo red pollutant from waste water compared with other samples.
Upgrading liquid electrolytes with all-solid-state electrolytes (ASEs) or quasi-solid-state electrolytes (QSEs) for solid-state batteries (SBs) have emerged not only to address the intrinsic disadvantages of traditional liquid lithium ion batteries, but also to offer more possibilities for the development of new battery chemistries. In this work, a novel rambutan-like yolk–shell-structured porous γ-AlOOH microsphere with a large specific surface area of 262.92 m2 g−1 was firstly obtained by a simple hydrothermal synthesis route, which was then utilized as a robust framework to assemble QSE via encapsulating abundant liquid electrolyte (LE). The obtained γ-AlOOH-QSE exhibits a high ionic conductivity of 4.0 × 10−3 S cm−1, a large lithium ion transference number (tLi+) of 0.76, as well as a wide electrochemical window of 4.72 V vs. Li/Li+. Moreover, the assembled cell of LiFePO4/γ-AlOOH-QSE/Li could maintain a high specific capacity of 144.4 mA h g−1 even after 120 cycles with almost negligible capacity decay, which could be mainly attributed to the excellent interfacial compatibility, prominent performance in suppressing lithium dendrite growth upon cycling (rigid characteristic), as well as the high ionic conductivity of γ-AlOOH-QSE (intrinsic advantage). This work could not only expand the applications of QSE with cost-effective aluminum-based oxides with facile fabrication strategy, but also will shed light on the construction of SEs with more integrated QSEs and ASEs in the field of advanced energy storage.
危险品化学品经营许可证（带存储）