干旱区生态环境知识资源中心(Arid): Effect and fate of Ni during aging and thermal-induced phyllomanganate-to-tectomanganate transformation

Arid

DOI	10.1016/j.gca.2022.07.014
	Effect and fate of Ni during aging and thermal-induced phyllomanganate-to-tectomanganate transformation
	Yin, Hui; Lanson, Bruno; Zhang, Shuang; Liu, Lu; Peacock, Caroline L.; Post, Jeffrey E.; Zhu, Mengqiang; Li, Wei; Wang, Qian; Zhang, Jing; Yang, Yong; Qiu, Guohong; Feng, Xionghan; Tan, Wenfeng; Liu, Fan
通讯作者	Yin, H ; Liu, F
来源期刊	GEOCHIMICA ET COSMOCHIMICA ACTA
ISSN	0016-7037
EISSN	1872-9533
出版年	2022
卷号	333 页码:200-215
英文摘要	Phyllomanganates are ubiquitous in a variety of environments and commonly enriched in transition metal elements, such as Ni. The effect of such foreign metal cations on phyllomanganate transformation is widely documented under aqueous conditions together with the induced modification of Ni geochemical behavior. A similar knowledge is lacking however on phyllomanganate transformation and on the induced fate of associated metal elements that may occur under dry conditions, that prevail in deserts and arid areas increasingly exposed to severe droughts or wildfires. The present study shows that crystallinity, morphology, Mn oxidation state, and Ni binding mechanisms are essentially unaffected when aging hexagonal birnessite (Mn oxidation state similar to 3.90 and Ni/Mn molar ratios of 0.00 and 0.13) in the dry state at room temperature for up to 8 years. In contrast, heating aged Ni-doped birnessite to 25-200 ? results in an increased proportion of edge-sharing Ni-Ni(Mn) pairs with increasing temperature induced by the migration of interlayer Ni to birnessite octahedral layers and/or by an increased sharing of coordination oxygens by interlayer Ni/Mn from adjacent layers. Further heating to 400 ? does not change this proportion, with birnessite layer structure being retained. Transformation of Ni-doped birnessite to cryptomelane is complete at 500 ?, while that of Ni-free birnessite is achieved at 400 ?, suggesting that Ni doping increases birnessite thermal stability. Birnessite-to-cryptomelane transformation comes with a strong increase of Mn oxidation state, whereas this parameter remains unchanged in heated birnessite samples. Ni incorporation in the cryptomelane framework, reduces its release during reductive acid dissolution by a factor of 396 +/- 15 compared to initial birnessite. These results shed light on mineral transformation affecting layered manganates under dry conditions and on the fate of associated transition metal elements. (C) 2022 Elsevier Ltd. All rights reserved.
英文关键词	Manganese oxide Mineral transformation Dry aging Thermal treatment Transition metals
类型	Article
语种	英语
开放获取类型	Green Accepted, Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000886461000005
WOS关键词	NA-RICH BIRNESSITE ; X-RAY-DIFFRACTION ; MANGANESE OXIDE ; HEXAGONAL BIRNESSITE ; STRUCTURAL-CHARACTERIZATION ; SYNTHETIC BIRNESSITE ; CRYSTAL-CHEMISTRY ; MN ; FE ; TODOROKITE
WOS类目	Geochemistry & Geophysics
WOS研究方向	Geochemistry & Geophysics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392907
推荐引用方式 GB/T 7714	Yin, Hui,Lanson, Bruno,Zhang, Shuang,et al. Effect and fate of Ni during aging and thermal-induced phyllomanganate-to-tectomanganate transformation[J],2022,333:200-215.
APA	Yin, Hui.,Lanson, Bruno.,Zhang, Shuang.,Liu, Lu.,Peacock, Caroline L..,...&Liu, Fan.(2022).Effect and fate of Ni during aging and thermal-induced phyllomanganate-to-tectomanganate transformation.GEOCHIMICA ET COSMOCHIMICA ACTA,333,200-215.
MLA	Yin, Hui,et al."Effect and fate of Ni during aging and thermal-induced phyllomanganate-to-tectomanganate transformation".GEOCHIMICA ET COSMOCHIMICA ACTA 333(2022):200-215.