Electrochemical investigation of the anodic hydrogen evolution on MgZn2, Mg2Si, and Al4Cu2Mg8Si7 intermetallic phases

doi:10.1007/s10008-022-05310-y

IMR OpenIR

	Electrochemical investigation of the anodic hydrogen evolution on MgZn2, Mg2Si, and Al4Cu2Mg8Si7 intermetallic phases
	Ikeuba, Alexander I.1,2; Zhang, Bo 1
通讯作者	Zhang, Bo(bxz011@imr.ac.cn)
	2022-10-17
发表期刊	JOURNAL OF SOLID STATE ELECTROCHEMISTRY
ISSN	1432-8488
页码	13
摘要	The anodic hydrogen evolution (AHE) on Mg, MgZn2 (eta-phase), Al4Cu2Mg8Si7 (Q-phase), and Mg2Si (beta-phase) intermetallic compounds has been investigated using hydrogen evolution technique and customized polarization schemes. Results show that at constant applied anodic current densities, the hydrogen evolution rates on pure Mg and MgZn2 are much higher than those of Q-phase and Mg2Si, indicating AHE is not very pronounced on Q-phase and Mg2Si. After anodic galvanostatic polarization, an obvious enhanced cathodic activity was observed for Mg, MgZn2, and Al4Cu2Mg8Si7 with no obvious change for Mg2Si. The stepped galvanostatic-potentiostatic tests reveal that pure Mg has the highest degree of cathodic activity enhancement with the increase of applied anodic current density, followed by Q-phase and MgZn2, while no obvious change of cathodic activity was noted in the case of Mg2Si. No single model was seen to be suitable for explaining the observed AHE of all the electrodes at the same time. However, the "incomplete film univalent Mg+ ion mechanism" and the "enhanced catalytic activity mechanism" can explain the observed experimental phenomena in many cases.
关键词	Anodic hydrogen evolution Cathodic activity MgZn2 Mg2Si Al4Cu2Mg8Si7
资助者	National Natural Science Foundation of China
DOI	10.1007/s10008-022-05310-y
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51571201]
WOS研究方向	Electrochemistry
WOS类目	Electrochemistry
WOS记录号	WOS:000869345900002
出版者	SPRINGER
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/176316
专题	中国科学院金属研究所
通讯作者	Zhang, Bo
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Calabar, Dept Pure & Appl Chem, Mat Chem Res Grp, Calabar, Nigeria
推荐引用方式 GB/T 7714	Ikeuba, Alexander I.,Zhang, Bo. Electrochemical investigation of the anodic hydrogen evolution on MgZn2, Mg2Si, and Al4Cu2Mg8Si7 intermetallic phases[J]. JOURNAL OF SOLID STATE ELECTROCHEMISTRY,2022:13.
APA	Ikeuba, Alexander I.,&Zhang, Bo.(2022).Electrochemical investigation of the anodic hydrogen evolution on MgZn2, Mg2Si, and Al4Cu2Mg8Si7 intermetallic phases.JOURNAL OF SOLID STATE ELECTROCHEMISTRY,13.
MLA	Ikeuba, Alexander I.,et al."Electrochemical investigation of the anodic hydrogen evolution on MgZn2, Mg2Si, and Al4Cu2Mg8Si7 intermetallic phases".JOURNAL OF SOLID STATE ELECTROCHEMISTRY (2022):13.