NH 4 F and VO (Acac) 2 Tuning of Hexagram-Shaped Co 3 O 4 Morphology for High-Performance Supercapacitor Electrodes. - Yang, Huanping; Zhang, Zhiguo; Fang, Ziming; Zhao, Yutian; Xiong, Bitao; Lang, Xiaoli; Shen, Yanting; Li, Xing'ao; Wang, Yan (Nanomaterials (2079-4991), 2026)