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Absstract of: CN119735243A
本发明提供一种氧化物修饰的正极材料及其制备方法和应用。本发明的制备方法包括:1)将金属盐与前体醇溶剂反应一定时间形成溶液A;2)将包覆底物材料与反溶剂混合形成溶液B;3)将步骤1)所得的溶液A与步骤2)所得的溶液B进行混合,在所述包覆底物材料表面形成均匀、连续且厚度可控的包覆层,得到均匀包覆的粉末;4)将步骤3)所得的均匀包覆的粉末进行煅烧形成所述氧化物修饰的正极材料。本发明的氧化物修饰的正极材料可用于显著地提高锂离子电池正极材料的循环寿命和倍率性能,具有很高的实用价值及应用前景。
Nº publicación: CN119736083A 01/04/2025
Applicant:
曲阜师范大学
Absstract of: CN119736083A
本发明属于功能材料制备领域,具体涉及一种具有可逆性的快速响应多色荧光CDs材料的制备方法及所得产品、应用。该方法通过以下步骤实现:首先利用萘‑1,4,5,8‑四羧酸、尿素、二乙胺和去离子水制备N‑CDs;然后将N‑CDs溶于不同浓度的四乙烯五胺(TEPA)溶液中,得到不同浓度的N‑CDs/四乙烯五胺(N‑CDs/TEPA)溶液。本发明首次实现了从深红色到浅绿色的宽范围可调谐光响应荧光颜色变化,填补了该项技术空白;实现了可重复动态信息编码的应用,在高级动态信息加密领域显示出巨大应用潜力。该工作的优点在于快速实现CDs材料的光响应可逆多色荧光发射,响应时间最快达0.5s,具有明显优势。本发明采用简单快捷的方法制备了快速响应多色荧光CDs材料,并且制备工艺简单,成本低。