![]() Wei Z, Wang Z, Yan J, Liu Y, Wu Y, Fang Y, Yu L, Cheng G, Pan Z, Hu G (2019) Adsorption and oxidation of arsenic by two kinds of β-MnO 2. Zhao H, Ezeh CI, Yin S, Xie Z, Pang CH, Zheng C, Gao X, Wu T (2020) MoO 3-adjusted δ-MnO 2 nanosheet for catalytic oxidation of Hg 0 to Hg 2+. Li J, Hu B, Nie P, Shang X, Jiang W, Xu K, Yang J, Liu J (2021) Fe-regulated δ-MnO 2 nanosheet assembly on carbon nanofiber under acidic condition for high performance supercapacitor and capacitive deionization. Khamsanga S, Pornprasertsuk R, Yonezawa T, Mohamad AA, Kheawhom S (2019) δ-MnO 2 nanoflower/graphite cathode for rechargeable aqueous zinc ion batteries. Li Y, Wang Z, Cai Y, Pam ME, Yang Y, Zhang D, Wang Y, Huang S (2022) Designing advanced aqueous zinc-ion batteries: principles, strategies, and perspectives. Xu W, Wang Y (2019) Recent progress on zinc-ion rechargeable batteries. ![]() Qiu S, Yunkai Xu, Xianyong Wu, Ji X (2022) Prussian blue analogues as electrodes for aqueous monovalent ion batteries. Wang J, Wang ZZ, Ni JF, Li L (2022) Electrospun materials for batteries moving beyond lithium-ion technologies. Luo HL, Liu B, Yang ZW, WanYZ ZC (2022) The trade-offs in the design of reversible zinc anodes for secondary alkaline batteries. Wu M, Zhang Y, Xu L, Yang C, Hong M, Cui M, Clifford BC, He S, Jing S, Yao Y, Hu L (2022) A sustainable chitosan zinc electrolyte for high-rate zinc-metal batteries. Liu A, Wu, F, Zhang Y, Zhou J, Zhou Y, Xie M (2022) insight on cathodes chemistry for aqueous zinc-ion batteries: from reaction mechanisms, structural engineering, and modification strategies. Moreover, a two-stage process involving the insertion/extraction of H + and Zn 2+ accompanied by precipitation/dissolution of ZnSO 4 3♳H 2O (ZHS) on the electrode surface was tentatively proposed as the mechanism for Zn 2+ storage in two electrode materials. g −1, excellent cycle stability over 1600 cycles at 1.0 A.This results in a consistently increasing specific capacity of 372 mAh By taking advantage of the charge screening effect induced by the higher crystal water content including enhanced Zn 2+ diffusion kinetics, the zinc-ion storage capacity of MnO 2-r is significantly improved. Their molecular formulas were determined using various techniques as K 0.8Mn 8O 16♱.44H 2O and K 0.8Mn 8O 16♰.80 H 2O, respectively. In this study, α-MnO 2 nanorods (MnO 2-r) and nanotubes (MnO 2-t) were synthesized by reacting KMnO 4 with different reducing agents, namely Cr(NO 3) 3 and hydrochloric acid. ![]() The tunnel-type MnO 2 structure is regarded as one of the most promising cathode materials for aqueous zinc-ion batteries due to its high theoretical specific capacity and excellent rate capability. ![]()
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