2025年2月28日 · Three-layered FeHCF@MnHCF@FeHCF enhances sodium-ion battery stability. Achieves 140.2 mAh g −1 capacity at 10 mA g −1, retains 81.8 % after 500 cycles. Innovative co-precipitation strategy constructs robust core-shell structure. Low-strain FeHCF shell suppresses Jahn-Teller effect, boosts cycling stability.

The X-ray diffraction (XRD) pattern shows that C-FeHCF exhibits a typical cubic face-centered structure (Figure 2A), and the Rietveld refinement result of the XRD pattern of C-FeHCF is shown in Figure 2B. The Rietveld refinement analysis illustrates that the C-FeHCF occupies a cubic structure with a space group of Fm-3m.

The X-ray diffraction (XRD) pattern of 850-KFeHCF was well matched with the crystal planes of the facecentered cubic (FCC) PB (JCPDS No.73-0687) [29, 35] (Fig. 1a, S3a and S3b). Feature peaks at...

XRD patterns of the FeHCF was shown in Fig. 1b. The remarkably split peaks at around 25 (2q) indicate that the FeHCF has a monoclinic structure.

2024年4月25日 · High-resolution transmission electron microscopy (HRTEM) and energy dispersive spectrometer (EDS) mapping were performed on Talos F200S. The sample phase was characterized by X-ray powder diffraction (XRD, MiniFlex600) with Cu Kα radiation (λ = 0.1542 nm) in 10–70°, 5° min-1. Raman spectra were collected on LabRAM Odyssey Raman ...

Herein, we report a two-layered hybrid catalytic interface composed of carboxymethyl cellulose (CMC), poly (3,4-ethylene dioxythiophene) (PEDOT), Prussian blue (PB) nanoparticles and...

2023年6月15日 · Thermogravimetric analysis (NETZSCH STA 2500) was applied to detect water contents of synthetic FeHCF under Ar flow. The morphology of the samples was observed with a scanning electron microscope (S-4800). XRD (Bruker D8) was used to characterize the crystal structure of the samples.

2020年10月15日 · 近日， 加拿大滑铁卢大学陈忠伟院士、湖南大学陈小华教授和吉林师范大学冯明教授（共同通讯作者）等人 首次报道了六氰化亚铁（FeHCF）在硫化和催化改进锂-硫电池中的配位不饱和现象。 作者利用一种简单的氨蚀刻处理来选择性去除FeIII-H2O部分，从而留下大量配位不饱和的Fe位点，同时在活化基质（FeHCF-A）中构建相当大的介孔率。 作为硫的宿主，大量的中尺度通道赋予FeHCF-A丰富的活性界面和离子/质量转移途径。 更重要的是，配位的不饱 …

2020年1月15日 · Iron hexcyanoferrate (FeHCF) nanocubes were prepared as a high-voltage and low-strain cathode material for room-temperature aqueous Li/Na mixed ion battery, which can effectively accommodate volume change during the reversible insertion/extraction of alkali ions.

2025年1月24日 · 南京师范大学周小四/阿德莱德大学郭再萍提出了介孔单晶铁六氰基高铁酸盐（MSC-FeHCF）微球，其特征是单晶结构包含跨越整个晶格的相互连接的孔。MSC-FeHCF微球表现出优异的的长期循环性能，在30 mA g −1 下的比放电容量为123.5 mAh g -1 ，在500 mA g -1 下的2000次循环 ...