坚毅
发表于 2025-3-25 05:26:34
,Eleventh Latin American conference on the applications of the Mössbauer effect, LACAME 2008, La Pla
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发表于 2025-3-25 09:37:30
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清楚
发表于 2025-3-25 12:31:54
Reduction of hematite with ethanol to produce magnetic nanoparticles of Fe,O,, Fe,O or Fe, coated whanol in a Temperature Programmed Reaction up to 950°C. XRD and Mössbauer measurements showed after reaction at 350°C the partial reduction of hematite to magnetite. At 600°C the hematite is completely reduced to magnetite (59%), wüstite (39%) and metallic iron (7%). At higher temperatures, carbide
约会
发表于 2025-3-25 16:11:41
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项目
发表于 2025-3-25 20:02:31
Niobian iron oxides as heterogeneous Fenton catalysts for environmental remediation,is based on the reaction between Fe. and H.O. to produce highly reactive intermediate hydroxyl radicals (.OH), which are able to oxidize organic contaminants, whereas the Fenton-like reaction is based on the reaction between Fe. and H.O.. These heterogeneous systems offer several advantages over the
Ingratiate
发表于 2025-3-26 03:38:17
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评论者
发表于 2025-3-26 07:07:17
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离开就切除
发表于 2025-3-26 09:52:24
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漂白
发表于 2025-3-26 16:16:09
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BURSA
发表于 2025-3-26 18:04:57
,Mössbauer spectroscopy study of a mineral sample from Oshno Hill, District of Chavín de Pariarca, Hince, Huanuco, Peru, indicates the presence of lepidocrocite (.-FeOOH) and goethite (.-FeOOH). The room temperature Mössbauer spectrum (MS) doublet with broad lines displays hyperfine parameters corresponding to the presence of particles of iron hydroxides smaller than 100 Å in a superparamagnetic r