2016年9月14日 · In 3 M Zn (CF 3 SO 3) 2 solution that enables ∼100% Zn plating/stripping efficiency with long-term stability and suppresses Mn dissolution, the spinel/carbon hybrid exhibits a reversible capacity of 150 mAh g –1 and a capacity retention of 94% over 500 cycles at a high rate of 500 mA g –1.

2023年11月1日 · ZnMn 2 O 4 nanostructures showed antiferromagnetic behaviors due to the super-exchange interactions between manganese ions. Finally, the photocatalytic behavior of the nanostructures was investigated for degradation of the anionic and cationic dyes.

2020年1月1日 · In this paper, we have successfully synthesized and characterized ZnMn 2 O 4 nanocomposite as cathode material. ZnMn 2 O 4 has been synthesized by one step hydrothermal method using Zinc acetate, potassium permanganate and Aniline as precursors. From XRD spectra, we have calculated the average crystallite size and residual tensile strain.

2024年10月20日 · Mn-deficient ZMO/ZMFO reduces electrostatic repulsion of Zn 2+ ions, aiding ion diffusion. A large unit cell volume of ZMO/ZMFO boosts Zn 2+ ions storage capacity. Small cuboid ZMO/ZMFO particles (50–200 nm) offer abundant electroactive sites. It has 230 mAh g −1 capacity and 99 % retention after 200 cycles at 0.2 A g −1.

2017年1月31日 · 南开大学程方益课题组设计制备了阳离子缺陷型尖晶石ZnMn2O4正极材料和大阴离子型三氟甲烷磺酸锌 [Zn (CF3SO3)2]电解液，将二者应用于水系锌离子电池体系中显示了优良的循环性能。 在正极材料方面，通过该课题组前期发展的一种氨水辅助的氧化沉淀-嵌入晶化的策略（Nat. Commun., 2015, 6, 7345）成功制备了导电碳负载的锌锰氧尖晶石正极材料。 这种材料具有丰富的阳离子缺陷，颗粒尺寸约为15 nm，均匀负载于导电碳基质中，其结构和形貌特点可以 …

2022年1月6日 · Herein, ZnMn 2 O 4 quantum dots (ZMO QDs) were introduced into a porous carbon framework by in-situ electrochemically inducing Mn-MIL-100-derived Mn 3 O 4 quantum dots and the carbon composite. In such ZMO QDs and carbon composite, the quantum dot structure endows ZnMn 2 O 4 with a shorter ion diffusion route and more active sites for Zn 2+.

2022年3月17日 · Herein, pure phase ZnMn 2 O 4 was prepared by a simple sol-gel process as cathode material for zinc ion batteries. In order to improve the cycle performance of the material while maintaining the capacity, acetonitrile/aqueous co-solvent electrolyte (0.5 M Zn (CF 3 SO 3) 2 /AN-H 2 O) was used as the electrolyte of the zinc ion battery.

Explore the spinel family crystalline lattice structure of ZnMn2O4 with lattice parameters, 3d interactive image of unit cell, cif file, lattice constants & more.

本论文中探索了水热法、模板法、尿素燃烧法、共沉淀法制备了ZnMn2O4的方法,研究了不同粘结剂对该材料电化学性能的影响,并在共沉淀法制备ZnMn2O4的基础上进行了导电高分子PPy的包覆改性研究。

以乙酸锌、乙酸锰和碳酸氢铵为原料,以酒石酸钾钠为结构导向剂,通过200 ℃溶剂热反应制备纳米束前驱体,根据前驱体形貌确定较优的酒石酸钾钠添加量和溶剂热反应时间;将前驱体分别在250,350 ℃高温焙烧2 h制备锂离子电池负极用ZnMn 2 O 4 纳米束,研究了ZnMn 2 O 4 纳米束的组织结构及 …