Nanoscale Stacking Fault Engineering and Mapping in Spinel Oxides for Reversible Multivalent Ion Insertion

These datasets are for the four-dimensional scanning transmission electron microscopy (4D-STEM) and electron energy loss spectroscopy (EELS) experiments for cathode nanoparticles at different states. The raw 4D-STEM experiment datasets were collected by TEM image & analysis software (FEI) and were saved as SER files. The raw 4D-STEM datasets of SER files can be opened and viewed in MATLAB using our analysis software package of imToolBox available at https://github.com/flysteven/imToolBox. The raw EELS datasets were collected by DigitalMicrograph software and were saved as DM4 files. The raw EELS datasets can be opened and viewed in DigitalMicrograph software or using our analysis codes available at https://github.com/chenlabUIUC/OrientedPhaseDomain. All the datasets are from the work "Nanoscale Stacking Fault Engineering and Mapping in Spinel Oxides for Reversible Multivalent Ion Insertion" (2024). The 4D-STEM experiment data include four example datasets for cathode nanoparticles collected at pristine and discharged states. Each dataset contains a stack of diffraction patterns collected at different probe positions scanned across the cathode nanoparticle. 1. Pristine untreated nanoparticle: "Pristine U-NP.ser" 2. Pristine 200ºC heated nanoparticle: "Pristine H200-NP.ser" 3. Untreated nanoparticle after first discharge in Zn-ion batteries: "Discharged U-NP.ser" 4. 200ºC heated nanoparticle after first discharge in Zn-ion batteries: "Discharged H200-NP.ser" The EELS experiment data includes six example datasets for cathode nanoparticles collected at different states (in "EELS datasets.zip") as described below. Each EELS dataset contains the zero-loss and core-loss EELS spectra collected at different probe positions scanned across the cathode nanoparticle. 1. Pristine untreated nanoparticle: "Pristine U-NP EELS.zip" 2. Pristine 200ºC heated nanoparticle: "Prisitne H200-NP EELS.zip" 3. Untreated nanoparticle after first discharge in Zn-ion batteries: "Discharged U-NP EELS.zip" 4. Untreated nanoparticle after first charge in Zn-ion batteries: "Charged U-NP EELS.zip" 5. 200ºC heated nanoparticle after first discharge in Zn-ion batteries: "Discharged H200-NP EELS.zip" 6. 200ºC heated nanoparticle after first charge in Zn-ion batteries: "Charged H200-NP EELS.zip" The details of the software package and codes that can be used to analyze the 4D-STEM datasets and EELS datasets are available at: https://github.com/chenlabUIUC/OrientedPhaseDomain. Once our paper is formally published, we will update the relationship of these datasets with our paper.

本数据集旨在支持四维扫描透射电子显微镜（4D-STEM）与电子能量损失光谱（EELS）实验，针对不同状态下的阴极纳米粒子进行研究。原始的4D-STEM实验数据集由透射电子显微镜图像与分析软件（FEI）采集，并以SER格式保存。用户可通过MATLAB中的分析软件包imToolBox（可在https://github.com/flysteven/imToolBox获取）打开并浏览这些SER格式的原始4D-STEM数据集。原始的EELS数据集则由DigitalMicrograph软件采集，并以DM4格式保存，可在DigitalMicrograph软件中打开或使用我方提供的分析代码（可在https://github.com/chenlabUIUC/OrientedPhaseDomain获取）进行查看。所有数据集均源自《关于尖晶石氧化物中纳米级堆垛缺陷工程与映射在可逆多价离子嵌入中的应用研究》（2024）。4D-STEM实验数据包含在原始和放电状态下采集的阴极纳米粒子四个示例数据集。每个数据集均包含在不同探针位置扫描阴极纳米粒子时收集的衍射图样序列。具体包括：1. 原始未处理纳米粒子：“Pristine U-NP.ser”；2. 原始200℃加热纳米粒子：“Pristine H200-NP.ser”；3. 首次放电后的未处理纳米粒子：“Discharged U-NP.ser”；4. 200℃加热后首次放电的纳米粒子：“Discharged H200-NP.ser”。EELS实验数据包括六个示例数据集，针对不同状态下的阴极纳米粒子进行采集，并打包于"EELS datasets.zip"中，具体如下：1. 原始未处理纳米粒子：“Pristine U-NP EELS.zip”；2. 原始200℃加热纳米粒子：“Prisitne H200-NP EELS.zip”；3. 首次放电后的未处理纳米粒子：“Discharged U-NP EELS.zip”；4. 首次充电后的未处理纳米粒子：“Charged U-NP EELS.zip”；5. 200℃加热后首次放电的纳米粒子：“Discharged H200-NP EELS.zip”；6. 200℃加热后首次充电的纳米粒子：“Charged H200-NP EELS.zip”。可用于分析4D-STEM数据集和EELS数据集的软件包与代码的详细信息可在https://github.com/chenlabUIUC/OrientedPhaseDomain获取。一旦我们的论文正式发表，我们将更新这些数据集与论文之间的关联关系。