Multi-modal characterization of nitrate reduction nano-catalysts with periodic strain distribution

This dataset contains the processed results derived from 4D-STEM measurements, including spatially resolved strain mapping and the corresponding adsorption energy distributions. Files related to strain mapping (e.g., CoSn_Strain.mat, CuCoSn_Strain.mat, Fig2a_Strainmapping.m) provide the real-space strain fields extracted from 4D-STEM diffraction datasets, together with analyses of strain periodicity (MEOH_StrainPeriod.mat) and EDS-derived elemental periodicity (EDS_Period.mat, EDS_Ratio.mat), which characterize the coupled structural and compositional modulation at the nanoscale. Files such as ActivationEnergy.mat, ActivationEnergy1.mat, and Period_AE.mat, etc., present the calculated adsorption energy maps and their associated statistical or periodic analyses.本数据集包含源自四维扫描透射电子显微镜(4D-STEM)测量的处理后结果，涵盖空间分辨应变映射及对应吸附能分布。与应变映射相关的文件（例如CoSn_Strain.mat、CuCoSn_Strain.mat、Fig2a_Strainmapping.m）提供了从4D-STEM衍射数据集提取的实空间应变场，同时包含应变周期性分析文件（MEOH_StrainPeriod.mat）以及由能量色散X射线能谱(EDS, Energy Dispersive X-ray Spectroscopy)得到的组分周期性分析文件（EDS_Period.mat、EDS_Ratio.mat），上述文件共同表征了纳米尺度下结构与组分的耦合调制。诸如ActivationEnergy.mat、ActivationEnergy1.mat及Period_AE.mat等文件，展示了经计算得到的吸附能图谱及其相关统计或周期性分析。