Secondary phase precipitate-induced localized corrosion of pure aluminum anode for aluminum–air battery

作     者：Bowei Zhang Hezu Wang Yan Su Wenguang Yang Xuelong Hao Zequn Zhang Fengqin Wang Wei Xue Junsheng Wu Bowei Zhang;Hezu Wang;Yan Su;Wenguang Yang;Xuelong Hao;Zequn Zhang;Fengqin Wang;Wei Xue;Junsheng Wu

作者机构：Institute for Advanced Materials and TechnologyUniversity of Science and Technology BeijingBeijing 100083China Southwest Institute of Technology and EngineeringChongqing 400039China National Center of Analysis and Testing for Nonferrous Metals and Electronic MaterialsGuobiao(Beijing)Testing&Certification Co.Ltd.Beijing 101407China 

基　　金：financially supported by the National Natural Science Foundation of China(No.51901018) the Young Elite Scientists Sponsorship Program by the China Association for Science and Technology(YESS,No.2019 QNRC001) the Fundamental Research Funds for the Central Universities,China(No.FRF-AT-20-07,06500119) the Natural Science Foundation of Beijing Municipality,China(No.2212037) the National Science and Technology Resources Investigation Program of China(No.2019FY 101400) the Southwest Institute of Technology and Engineering Cooperation Fund,China(No.HDHDW5902020107) 

出 版 物：《International Journal of Minerals,Metallurgy and Materials》 (矿物冶金与材料学报（英文版）)

年 卷 期：2023年第30卷第5期

页      码：977-987页

摘      要：Understanding the influence of purities on the electrochemical performance of pure aluminum(Al)in alkaline media for Al–air batteries is ***,we comprehensively investigate secondary phase precipitate(SPP)-induced localized corrosion of pure Al in NaOH solution mainly based on quasi-in-situ and cross-section observations under scanning electron microscopy coupled with finite element *** experimental results indicate that Al–Fe SPPs appear as clusters and are coherent with the Al *** alkaline media,Al–Fe SPPs exhibit more positive potentials than the substrate,thus aggravating localized galvanic corrosion as cathodic ***,finite element simulation indicates that the irregular geometry coupled with potential difference produces the non-uniform current density distribution inside the SPP cluster,and the current density on the Al substrate gradually decreases with distance.

主 题 词：aluminum secondary phase precipitates cluster corrosion alkaline 

学科分类：0819[工学-海洋工程类] 0806[工学-电气类] 08[工学] 0805[工学-能源动力学] 080502[080502] 

核心收录：

D　O　I：10.1007/s12613-022-2533-1

馆 藏 号：203117787...