Cu corrosion in supernatant and sedimentation of bentonite slurry containing chloride

doi:10.1016/j.corsci.2024.112308

	Cu corrosion in supernatant and sedimentation of bentonite slurry containing chloride
	Zhao, Yibing 1,2; Liu, Xiangju 1; Liu, Nazhen 1; Dai, Yongchao 1,5; Jiang, Quantong 1; Chen, Mingli 2; Song, Lijun 3,4; Li, Chengtao 3,4; Duan, Jizhou1 ; Hou, Baorong 1
	2024-08-15
发表期刊	CORROSION SCIENCE
ISSN	0010-938X
卷号	237 页码:12
通讯作者	Liu, Nazhen([email protected])
摘要	Cu corrosion in aerated NaCl solution containing different bentonite content was investigated using electrochemical impedance spectroscopy and surface analysis techniques. In NaCl solution, Cu corrosion proceeds with CuClads formation and its transformation to Cu2O. The outer deposit layer consists of Cu2O and Cu2(OH)3Cl. The self-catalyzed comproportionation reaction between Cu and CuClx(x- 2)- produces CuClx(x- 1)- , leading to accelerated Cu corrosion. Bentonite slurry (10-30 wt%) shows supernatant and sedimentation layers. In supernatant layer, Cu corrosion happens with the help of anions dissolved from bentonite minerals. In sedimentation layer, Cu corrosion is hindered due to suppressed cathodic reaction and the self-catalyzed comproportionation reaction.
关键词	A. Copper A. Bentonite B. EIS C. Chloride ions C. Deep geological disposal
DOI	10.1016/j.corsci.2024.112308
收录类别	SCI
语种	英语
资助项目	National Nat-ural Science Foundation of China[51901222]; National Nat-ural Science Foundation of China[52201092]; CAS Pioneer Hundred Talents Program
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001281275300001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS关键词	LOW-CARBON STEEL ; LONG-TERM CORROSION ; GEOLOGICAL DISPOSAL ; COPPER CORROSION ; BEHAVIOR ; WASTE ; PH ; SPECTROSCOPY ; TEMPERATURE ; GROUNDWATER
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/186133
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Liu, Nazhen
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Adv Marine Mat, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 2.Northeastern Univ, Coll Sci, Res Ctr Analyt Sci, Dept Chem, Shenyang 110819, Peoples R China 3.Suzhou Nucl Power Res Inst Co Ltd, Suzhou 215004, Peoples R China 4.Natl Engn Res Ctr Nucl Power Plant Safety & Reliab, Suzhou 215004, Peoples R China 5.Univ Chinese Acad Sci, Beijing 101408, Peoples R China
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Zhao, Yibing,Liu, Xiangju,Liu, Nazhen,et al. Cu corrosion in supernatant and sedimentation of bentonite slurry containing chloride[J]. CORROSION SCIENCE,2024,237:12.
APA	Zhao, Yibing.,Liu, Xiangju.,Liu, Nazhen.,Dai, Yongchao.,Jiang, Quantong.,...&Hou, Baorong.(2024).Cu corrosion in supernatant and sedimentation of bentonite slurry containing chloride.CORROSION SCIENCE,237,12.
MLA	Zhao, Yibing,et al."Cu corrosion in supernatant and sedimentation of bentonite slurry containing chloride".CORROSION SCIENCE 237(2024):12.