High-spin-cobalt in-situ constructs redox-active sites, decoupling nickel-based Prussian blue analogues as “electronic switch” to enhance aqueous calcium ion storage efficiency - Jian Cao; Miao Cui; Tianming Lv; Zhenhua Zhou; Yi Zhong; Hongxin Zhao; Ziqi Ren; Yifu Zhang; Changgong Meng (Chemical Engineering Journal, 2026)