理学 >>> 地质学 >>> 数学地质学 地质力学 动力地质学 矿物学 矿床学与矿相学 岩石学 岩土力学 沉积学 古地理学 古生物学 地层学与地史学 前寒武纪地质学 第四纪地质学 构造地质学 大地构造学 勘查地质学 水文地质学 遥感地质学 区域地质学 火山学 石油与天然气地质学 煤田地质学 实验地质学 地球化学 地质学其他学科
搜索结果: 1-15 共查到地质学 Oxidation相关记录38条 . 查询时间(0.031 秒)
Abstract: Glauconite from the oxidized and reduced zones of soil-geologic columns at two Coastal Plain sites, one in Maryland and one in New Jersey, was examined by M鰏sbauer spectroscopy. The data ind...
Ce0.8La0.2O1.9-attapulgite (Ce0.8La0.2O1.9-ATP) nanocomposite materials were synthesized by co-precipitation method. The microstructure and phase composition of the as-prepared samples were characteri...
Abstract: A synthetic octahedral-site-vacancy-free annite sample and its progressive oxidation, induced by heating in air, were studied by powder X-ray diffraction (pXRD), Mössbauer spectroscopy,...
Abstract: Reduction of structural Fe in Na-exchanged dioctahedral smectites decreases swellability in water, but because clay interlayers also collapse in the process the concomitant effect on surface...
The interaction of gaseous O , H O, and their mixtures with clean {100} surfaces of pyrite 2 2) were investigated in ultra-high vacuum using scanning tunneling microscopy and spectros-(FeS copy (STM...
Abstract: Mn-substituted goethite was synthesized and the interaction between arsenite (As(III)) and Mn-substituted goethite was investigated by both solution chemistry and X-ray adsorption near edge ...
XANES measurements on gold-bearing arsenian pyrite from the Twin Creeks Carlin-type gold and Au and arsenic is present at As . Au is attributed deposits show that gold is present as both Au to su...
Surface colonization and microbial dissolution of pyrite were studied in the laboratory and by in situ surface colonization experiments conducted at Iron Mountain, California.Laboratory experiments in...
ThegeochemistryofCoattheEarthflssurfaceiscloselyassociatedwiththatofmanganeseoxides.ThisgeochemicalassociationresultsfromtheoxidationofhighlysolubleCotoweaklysolubleCo species,coupledwiththereductiono...
Theyoungestsamplehasparameterscorrespondingtonearlyunoxidizedtitanomagne- tite,whereastheoldestisnear-end-membertitanomaghemite.Intermediatesamplesare partiallyalteredbutdisplaynosuperstructurere?ec...
MarcasitesurfaceswereanalyzedusingX-rayphotoelectronspectroscopy(XPS)andaugerelectronspectroscop(AES).XPSdataofapristinemarcasitesurfaceareusedasatemplatetoexaminethecharacteristicsofamarcasitesurface...
Abstract: Ferruginous beidellites with Al:Fe atomic ratios up to 2.36 were obtained when solutions containing Al, Fe2+ and H4SiO4 were adjusted to pH 8.5 with Ca(OH)2 and incubated at 95 癈 in the pres...
X-ray and ultraviolet photoelectron spectroscopy (XPS and UPS,respectively) and scan-ning tunneling microscopy (STM) were used to observe the initial oxidation of pyrite surfaces in air. The results s...
Abstract: Submicron-sized (∼3–60 nm) powders of Al-substituted magnetite were synthesized in the laboratory by precipitation methods by mixing appropriate molar volumes FeCl2, FeCl3 and AlCl3 so...
Phenol (benzenol) oxidation by three synthetic manganese oxides (buserite, manganite, and feitknechtite) has been studied in aerated, aqueous, acidified suspensions. The rate of reaction was pH depend...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...