2015年12月16日 · Recently, we reported the use of ZnHCF as a novel cathode material in RAMB based on zinc ions for the first time 30. Combining with Zn as the anode, the Zn/ZnHCF system can exhibit a high...

2022年6月1日 · Fourier-transform infrared spectroscopy (FT-IR; PerkinElmer, Frontier, USA) was performed to measure the chemical bonding and strength of the samples in a 4000–400 cm −1 range. The electronic conductivity of the powders was measured by hall effect measurement (Ecopia, HMS-3000, Korea) on pelletized samples.

2023年5月12日 · 基于理论计算模拟和多种实验表征证明，这种疏水且致密的ZnHCF基SEI（简写为HB-ZnHCF）可以抑制水分子穿过，缓解了由水引发的析氢和腐蚀的问题。 此外，HB-ZnHCF晶体结构中含有丰富的离子通道（半径达5 Å），且-CN基团具有很强的亲锌性，有利于提升Zn2+扩散动力学（Zn2+迁移数高达0.86）。 另外，HB-ZnHCF具有均匀锌负极电场分布、降低界面浓差极化的功能，可以引导无枝晶锌沉积。 作为对比，利用非原位物理涂层法在锌负极表面制备 …

2021年7月17日 · A stable film of zinc hexacyanoferrate is deposited on a GC (glassy carbon) substrate following a specific electrochemical protocol. The electrode maintains its characteristic even after dry and wet processes. SEM characterization confirms the cubic morphology of the materials and the IR suggests the presence of the FeII-C-N-ZnII structural unit.

2025年3月16日 · DFT计算结合SEM结果表明，ZnHCF@3D-GC显著提高了对Zn的吸附性能，有利于Zn（002）平面的优先沉积，有效促进了Zn的成核和锌的可逆镀/剥离。因此，使用MnO 2 和ZnHCF阴极的两种全电池表现出令人印象深刻的稳定性，在2.0 A g-1 下实现高达1000次循环，容量保持率为88.3%和 ...

在这里，我们构建了一种基于六氰基铁酸锌 (ZnHCF) 阴极、锌金属阳极和非水性 K + /Zn 2+混合离子电解质的特定双离子电池 (DIB) 。结果表明，在超过 1.7 V ( vs. Zn 2+ /Zn) 的高压下，K + -离子几乎占据了 ZnHCF 中的所有空腔，这有效地阻止了 Zn 2+ - 离子的插入。

2025年2月19日 · The inner ZnHCF possess minimized nucleation barriers, which can serve as favorable nucleation sites, and 3D host provide a buffer interspace to allow for even more high-capacity Zn plating. Additionally, density functional theory results show that ZnHCF exhibits a strong Zn binding energy and high adsorption energy of Zn (002) plane, which can ...

2021年11月1日 · Here we constructed a particular dual-ion battery (DIB) based on zinc hexacyanoferrate (ZnHCF) cathode, zinc metal anode, and non-aqueous K + /Zn 2+ hybrid ions electrolyte. It was revealed that K +-ions occupied almost all the cavities in ZnHCF at high voltage over 1.7 V (vs. Zn 2+ /Zn), which effectively blocked Zn 2+-ions insertion.

2022年8月10日 · The open and stable framework of K-ZnHCF with large ionic channels is benefitial for high rate Ni 2+ extraction/insertion capability. The calculated high diffusion coefficient convincingly proves the favorable rate performance of K-ZnHCF in nickel ion batteries.

2016年2月8日 · In the present work, we employed zinc hexacyanoferrates (ZnHCFs), which occurs as cubic or rhombic phases, as the probe to tailor the mechanism of capacity decay upon electrochemical cycling and the corresponding mitigating strategy.