Anticorrosion and discharge performance of calcium and neodymium co-doped AZ61 alloy anodes for Mg-air batteries

Baosheng Liu; Ang Gao; Zhechao Zhang; Muhun He; Ben Bin Xu; Xuetao Shi; Pengpeng Wu; Sijie Guo; Mohammed A.  Amin; Eman Ramadan  Elsharkawy; Zhanhu Guo

doi:10.1016/j.jmst.2024.01.024

Anticorrosion and discharge performance of calcium and neodymium co-doped AZ61 alloy anodes for Mg-air batteries

Baosheng Liu^*, Ang Gao, Zhechao Zhang, Muhun He, Ben Bin Xu, Xuetao Shi, Pengpeng Wu, Sijie Guo, Mohammed A. Amin, Eman Ramadan Elsharkawy, Zhanhu Guo^*

^*Corresponding author for this work

Mechanical and Construction Engineering Department

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Abstract

Calcium (Ca) and neodymium (Nd) were introduced in the AZ61 alloy as alloying elements. The microstructure, corrosion behavior, and discharge properties of AZ61-1Nd-xCa (x = 0, 0.5 wt.%, 1 wt.%, 2 wt.%) alloys as anodes for Mg-air batteries were systematically investigated. The results indicated that the AZ61-1Nd-1Ca alloy exhibits the best corrosion resistance during electrochemical experiments and hydrogen evolution tests. Discharge performance tests showed that the AZ61-1Nd-1Ca alloy exhibits the best specific capacity (1193.6 mAh g−1), energy density (1893.7 mWh g−1), anode efficiency (60.3 %), and cell voltage (1.246 V) at higher current densities. This is mainly attributed to the addition of Ca element, which refines the grain size of the alloy and increases the grain boundary area. In addition, Al2Nd and Al2Ca phases have similar corrosion mechanisms in the cross-section of the extruded alloy. The precipitated granular Al2Ca phase is uniformly dispersed on the substrate and acts as a physical barrier. This not only enhances the corrosion resistance of the alloy but also improves the anode efficiency of the alloy during discharge.

Original language	English
Pages (from-to)	132-145
Number of pages	14
Journal	Journal of Materials Science and Technology
Volume	193
Early online date	16 Feb 2024
DOIs	https://doi.org/10.1016/j.jmst.2024.01.024
Publication status	Published - 10 Sept 2024

Keywords

Mg alloy
Ca addition
Mg-air battery
Corrosion behavior
Discharge performance

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Cite this

@article{8641683d9be14cde8bd70d6172cd6ed8,

title = "Anticorrosion and discharge performance of calcium and neodymium co-doped AZ61 alloy anodes for Mg-air batteries",

abstract = "Calcium (Ca) and neodymium (Nd) were introduced in the AZ61 alloy as alloying elements. The microstructure, corrosion behavior, and discharge properties of AZ61-1Nd-xCa (x = 0, 0.5 wt.%, 1 wt.%, 2 wt.%) alloys as anodes for Mg-air batteries were systematically investigated. The results indicated that the AZ61-1Nd-1Ca alloy exhibits the best corrosion resistance during electrochemical experiments and hydrogen evolution tests. Discharge performance tests showed that the AZ61-1Nd-1Ca alloy exhibits the best specific capacity (1193.6 mAh g−1), energy density (1893.7 mWh g−1), anode efficiency (60.3 %), and cell voltage (1.246 V) at higher current densities. This is mainly attributed to the addition of Ca element, which refines the grain size of the alloy and increases the grain boundary area. In addition, Al2Nd and Al2Ca phases have similar corrosion mechanisms in the cross-section of the extruded alloy. The precipitated granular Al2Ca phase is uniformly dispersed on the substrate and acts as a physical barrier. This not only enhances the corrosion resistance of the alloy but also improves the anode efficiency of the alloy during discharge.",

keywords = "Mg alloy, Ca addition, Mg-air battery, Corrosion behavior, Discharge performance",

author = "Baosheng Liu and Ang Gao and Zhechao Zhang and Muhun He and Xu, {Ben Bin} and Xuetao Shi and Pengpeng Wu and Sijie Guo and Amin, {Mohammed A.} and Elsharkawy, {Eman Ramadan} and Zhanhu Guo",

note = "Funding information: The authors gratefully acknowledge the Key Scientific Research Project in Shanxi Province(Grant No. 202102050201003), Central Guiding Science and Technology Development of Local Fund (grant No. YDZJSK20231A046) and National Natural Science Foundation of China (Grant Nos. 52071227, and 52275356). The authors extend their appreciation to the Deanship of Scientific Research at Northern Border University, Arar, KSA for funding this research through the project number “NBU-FPEJ-2024-249-01”.",

year = "2024",

month = sep,

day = "10",

doi = "10.1016/j.jmst.2024.01.024",

language = "English",

volume = "193",

pages = "132--145",

journal = "Journal of Materials Science and Technology",

issn = "1005-0302",

publisher = "Chinese Society of Metals",

}

TY - JOUR

T1 - Anticorrosion and discharge performance of calcium and neodymium co-doped AZ61 alloy anodes for Mg-air batteries

AU - Liu, Baosheng

AU - Gao, Ang

AU - Zhang, Zhechao

AU - He, Muhun

AU - Xu, Ben Bin

AU - Shi, Xuetao

AU - Wu, Pengpeng

AU - Guo, Sijie

AU - Amin, Mohammed A.

AU - Elsharkawy, Eman Ramadan

AU - Guo, Zhanhu

N1 - Funding information: The authors gratefully acknowledge the Key Scientific Research Project in Shanxi Province(Grant No. 202102050201003), Central Guiding Science and Technology Development of Local Fund (grant No. YDZJSK20231A046) and National Natural Science Foundation of China (Grant Nos. 52071227, and 52275356). The authors extend their appreciation to the Deanship of Scientific Research at Northern Border University, Arar, KSA for funding this research through the project number “NBU-FPEJ-2024-249-01”.

PY - 2024/9/10

Y1 - 2024/9/10

N2 - Calcium (Ca) and neodymium (Nd) were introduced in the AZ61 alloy as alloying elements. The microstructure, corrosion behavior, and discharge properties of AZ61-1Nd-xCa (x = 0, 0.5 wt.%, 1 wt.%, 2 wt.%) alloys as anodes for Mg-air batteries were systematically investigated. The results indicated that the AZ61-1Nd-1Ca alloy exhibits the best corrosion resistance during electrochemical experiments and hydrogen evolution tests. Discharge performance tests showed that the AZ61-1Nd-1Ca alloy exhibits the best specific capacity (1193.6 mAh g−1), energy density (1893.7 mWh g−1), anode efficiency (60.3 %), and cell voltage (1.246 V) at higher current densities. This is mainly attributed to the addition of Ca element, which refines the grain size of the alloy and increases the grain boundary area. In addition, Al2Nd and Al2Ca phases have similar corrosion mechanisms in the cross-section of the extruded alloy. The precipitated granular Al2Ca phase is uniformly dispersed on the substrate and acts as a physical barrier. This not only enhances the corrosion resistance of the alloy but also improves the anode efficiency of the alloy during discharge.

AB - Calcium (Ca) and neodymium (Nd) were introduced in the AZ61 alloy as alloying elements. The microstructure, corrosion behavior, and discharge properties of AZ61-1Nd-xCa (x = 0, 0.5 wt.%, 1 wt.%, 2 wt.%) alloys as anodes for Mg-air batteries were systematically investigated. The results indicated that the AZ61-1Nd-1Ca alloy exhibits the best corrosion resistance during electrochemical experiments and hydrogen evolution tests. Discharge performance tests showed that the AZ61-1Nd-1Ca alloy exhibits the best specific capacity (1193.6 mAh g−1), energy density (1893.7 mWh g−1), anode efficiency (60.3 %), and cell voltage (1.246 V) at higher current densities. This is mainly attributed to the addition of Ca element, which refines the grain size of the alloy and increases the grain boundary area. In addition, Al2Nd and Al2Ca phases have similar corrosion mechanisms in the cross-section of the extruded alloy. The precipitated granular Al2Ca phase is uniformly dispersed on the substrate and acts as a physical barrier. This not only enhances the corrosion resistance of the alloy but also improves the anode efficiency of the alloy during discharge.

KW - Mg alloy

KW - Ca addition

KW - Mg-air battery

KW - Corrosion behavior

KW - Discharge performance

U2 - 10.1016/j.jmst.2024.01.024

DO - 10.1016/j.jmst.2024.01.024

M3 - Article

SN - 1005-0302

VL - 193

SP - 132

EP - 145

JO - Journal of Materials Science and Technology

JF - Journal of Materials Science and Technology

ER -