In-situ growth of layered double hydroxide films on biomedical magnesium alloy by transforming metal oxyhydroxide

doi:10.1016/j.apsusc.2019.143690

	In-situ growth of layered double hydroxide films on biomedical magnesium alloy by transforming metal oxyhydroxide
	Zhang, Dongdong; Peng, Feng; Tan, Ji; Liu, Xuanyong
刊名	APPLIED SURFACE SCIENCE
	2019-12-01
卷号	496
关键词	Magnesium alloy Layered double hydroxide Oxyhydroxide Corrosion resistance Biocompatibility
ISSN号	0169-4332
DOI	10.1016/j.apsusc.2019.143690
文献子类	Article
英文摘要	Layered double hydroxide (LDH) films have been widely used for corrosion protection and medical applications. The most common synthesis methods for in-situ growth of LDH films on magnesium (Mg) alloys are hydrothermal treatment and steam coating. However, both the methods are mainly used for preparing Mg-Al LDH films and have limitations to in-situ fabricate other Mg-based LDH films which are suitable for biomedical application. Herein, a novel synthesis strategy for in-situ growth of LDH films on Mg alloys is proposed. Firstly, amorphous ferric oxyhydroxide (FeOOH) film was developed on Mg-Nd-Zn-Zr (JDBM) alloy by electrodeposition technique. Then, the as-prepared FeOOH films were transformed into Mg-Fe LDH film via hydrothermal treatment in water. In the LDH formation process, Mg2+ would enter into amorphous FeOOH and replace the Fe3+ quickly to form LDH. The thickness of the LDH films can be easily controlled by adjusting electrodeposition time. Electrochemical tests and cells culture experiments indicated that the as-prepared Mg-Fe LDH films improved corrosion resistance and biocompatibility of JDBM alloy. In addition, Mg-Mn LDH can also be prepared from amorphous manganese oxyhydroxide (MnOOH) via this newly developed two-step method. The present work provides a new strategy for preparation of LDH films on Mg alloys surface.
WOS研究方向	Chemistry ; Materials Science ; Physics
语种	英语
出版者	ELSEVIER
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/26718]
专题	中国科学院上海硅酸盐研究所
推荐引用方式 GB/T 7714	Zhang, Dongdong,Peng, Feng,Tan, Ji,et al. In-situ growth of layered double hydroxide films on biomedical magnesium alloy by transforming metal oxyhydroxide[J]. APPLIED SURFACE SCIENCE,2019,496.
APA	Zhang, Dongdong,Peng, Feng,Tan, Ji,&Liu, Xuanyong.(2019).In-situ growth of layered double hydroxide films on biomedical magnesium alloy by transforming metal oxyhydroxide.APPLIED SURFACE SCIENCE,496.
MLA	Zhang, Dongdong,et al."In-situ growth of layered double hydroxide films on biomedical magnesium alloy by transforming metal oxyhydroxide".APPLIED SURFACE SCIENCE 496(2019).