Ce single-atom synergizes icosahedral Pt2Ce nanoparticles to promote performance enhancement for zinc-air battery
Description
Data for this article, including the original data from AC-STEM tests，SEM tests, TEM tests, XPS tests, XRD tests, XANES and EXAFS tests, electrochemical tests, ZABs tests，as well as DFT theoretical calculations
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Steps to reproduce
The chemicals required for the experiment can be used directly without further purification. Zn(NO3)2⸱6H2O (Tianjin Guangfu Technology Development Co., Ltd., 99%), Ce(NO3)3⸱6H2O (Adamas Reagents Co., Ltd., 99%), 2-methylimidazole (Adamas Reagents Co., Ltd., 98%), methanol (Tianjin Zhiyuan Chemical Reagent Co., Ltd., AR), ethanol (Tianjin Zhiyuan Chemical Reagent Co., Ltd., AR), KB-300 (Suzhou Yilongsheng Energy Technology Co., Ltd.), Pt(acac)2 (Aladdin Reagents Co., Ltd., 97%), Ce(acac)3 (Aladdin Reagents Co., Ltd., 98%), HNO3 (Chengdu Kelong Chemical Reagents Co., Ltd., AR), H2SO4 (Chengdu Kelong Chemical Reagents Co., Ltd., AR), CHCl3 (Chengdu Kelong Chemical Reagents Co., Ltd., AR), Zn(OAc)2 (Adamas Reagents Co., Ltd., 99%), KOH (Sinopharm Chemical Reagents Co., Ltd., 90%), Nafion (Adamas Reagents Co., Ltd., 5 wt%), Pt/C (Shanghai Hesen Electric Co., 20 wt%).The morphology of the samples were observed by field emission scanning electron microscopy (SEM, Germany-Zeiss-GeminiSEM 360 and USA-FEI-Quanta FEG 250 + Oxford Energy Spectroscopy) and field emission transmission electron microscopy (TEM, Japan-JEOL-JEM-2100F). Spherical aberration corrected transmission electron microscopy (AC-STEM) were taken on a USA-Thermo Fisher Scientific-Titan Themis G2 60-300. The structure and crystallinity were investigated by X-ray diffraction (XRD, Germany-Bruker-D8 ADVANCE and Rigaku Ultima IV). The chemical composition and electronic valence states were analyzed by X-ray photoelectron spectroscopy (XPS, USA-Thermo SCIENTIFIC ESCALAB 250Xi). X-ray absorption spectroscopy (XAS) measurements and data analyses were performed at Beijing Synchrotron Radiation-Absorption Spectroscopy XAFS (EXAFS+XANES).The tests were performed with a AutoLab electrochemical workstation and a rotating disk electrode device. The tests were performed using a three-electrode system, with the rotating disk electrode (RDE) and the rotating ring-disk electrode (RRDE) as the working electrodes (WE), the Ag/AgCl electrode as the reference electrode (RE) and the platinum wire as the counter electrode (CE)
Institutions
- Inner Mongolia Normal University