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Surface Properties and Catalytic Performance of Pt/PrSrCoO4 Catalysts for NO Reduction by CO
Perovskite-type A2BO4 Pt/PrSrCoO4 XPS NO reduction by CO
2010/4/19
Perovskite-type Pr2-xSrxCoO4\pm l mixed oxides were prepared by different calcination temperatures and were investigated by XRD, BET, TPD, TPR and XPS methods. These catalysts possess high catalytic a...
氨基改性介孔二氧化硅的制备及其吸附性能研究（Macroporous Silica: Surface Modification and Adsorption Properties）
介孔材料 改性 扩孔 3-氨丙基三乙氧基硅烷 吸附
2010/8/24
合成了一种具有较大孔径的氨基改性介孔二氧化硅材料(m-MCF)。通过XRD、TEM、低温氮吸附、TGA、FTIR以及原子吸收光谱(AAS)等表征方法对产物的结构和性能进行的分析表明:利用三甲基苯为扩孔剂制备得到的介孔材料具有较大的孔径，有利于功能基团对孔内表面的改性。当氨基改性介孔材料后，该材料仍然保留较大的孔径(22 nm)和较高的比表面积(444 m2·g-1)。研究发现:与改性而未扩孔的介孔...
N,N`-Bis(1`-hydroxy-2`-acetonaphthone)propylenediamine: Synthesis, Extractive Properties, and Use as an Ionophore in a Cu(II)-Selective Potentiometric Sensor
propylenediamine Synthesis, Extractive Properties Use as an Ionophore Selective Potentiometric Sensor
2010/4/16
The binding ability of N,N'-bis(1'-hydroxy-2'-acetonaphthone)propylenediimine (H2L) towards metal ions was investigated by performing liquid-liquid extraction experiments to extract Cu2+, Ni2+, Co2+, ...
Theoretical Study on Properties of New Isotope 265Bh
relativistic mean field superheavy nuclei binding energy lifetimes
2007/8/15
2006Vol.45No.4pp.681-686DOI:
Theoretical Study on Properties of New Isotope 265Bh
ZHANG Hong-Fei,1,3 ZUO Wei,1,2 LI Jun-Qing,1,2,5 Soojae Im,1,2 MA Zhong-Yu,2,4 and CHEN Bao-Qiu2,...
BST/Si-NPA复合薄膜的湿敏电容特性研究（Capacitive Humidity Sensing Properties of BST/Si-NPA Composite Thin Films）
钛酸锶钡 硅纳米孔柱阵列 复合薄膜 湿敏电容特性
2010/8/25
本文采用溶胶-凝胶法和旋涂工艺，以Si-NPA为衬底，制备了钛酸锶钡(BST)/Si-NPA复合薄膜，并对其形貌、结构及湿敏电容特性进行了研究。结果表明，环境的相对湿度(RH)、测试信号频率和退火温度均对湿敏电容特性具有较大影响。在100 Hz的测试信号频率下，当环境的相对湿度从11%上升到95%时，BST/Si-NPA湿敏元件的电容增量可达起始值的4 400%，显示出较高的湿度敏感性。同时，元件...
专著信息
书名
Nanowires and Nanobelts materials, properties and devices, (Chapter 10, Nanowires and Nanotubes of Complex Oxides)
语种
英文
撰写或编译
作者
Li Yadong
第一作者单位
出版社
Kluwer publisher, American, 2003
出版地
出版日期...
二(2-苯基-8-羟基喹啉)锌及其衍生物的电子光谱性质的含时密度泛函理论研究（TD-DFT Study on Electronic Spectrum Properties of Bis(2-phenyl-8-hydroxyquinolato)zinc and Its Derivatives）
8-羟基喹啉锌衍生物 电子光谱 激发态 含时密度泛函理论
2010/8/24
采用从头算(ab initio)和密度泛函理论(DFT B3LYP)方法。对二(2-苯基-8-羟基喹啉)锌(Zn(qPh)2)及其衍生物的基态结构进行优化，同时用ab initio HF单激发组态相互作用(CIS)法在6-31G基组上优化其最低激发单重态几何结构，用含时密度泛函理论(TD-DFT/B3LYP)及6-31G基组计算吸收和发射光谱。计算表明，该类物质电子在基态与激发态间的跃迁，主要是电...
二元类水滑石层板组成、结构与性能的理论研究（Theoretical Studies on Layer Composition, Structure and Properties of Hydrotalcite)
类水滑石 静电势能模型 热稳定性
2010/8/24
采用晶体学理论建立二元类水滑石(LDHs)微观结构模型与静电势能模型，将层板金属离子间距、层板电荷密度、层间阴离子间距等微观结构参数定量化，并将层间阴离子的静电势能表示成层板金属离子半径和物质的量之比、插层阴离子尺寸和电荷的函数。研究结果表明：LDHs层板金属离子间距应用离子紧密堆积来估算和孔径按阴离子平面六方点阵分布来计算是可行的；调变层板金属离子种类与物质的量之比影响层间阴离子的稳定性，势能计...
Catalytic Oxidation Properties and Characterization of LaSrCo0.9B'0.1O4 (B'= Mn, Fe, Ni, Cu) Mixed Oxides
B-site adulteration catalytic oxidation Co-based mixed oxides A2BO4
2010/4/19
Using a polyacrylamide gel method, a series of LaSrCo0.9B'0.1O4 (B'= Mn, Fe, Ni, Cu) mixed oxides were prepared and their catalytic activity was studied with CO and C3H8 oxidations as a testing reacti...
Defect Structure and Properties of Sr-Doped La Cr O3-d
Defect modeling LSC Perovskite Nonstoichiometry Conductivity
2010/4/20
A defect chemical model for the behavior of acceptor-doped LaCrO3 as a function of oxygen pressure is proposed. This is considered within the regime that corresponds to oxygen deficit oxygen. The math...
Determination of Some of the Physicochemical Properties of Fine Alumina Powders Prepared by Emulsion Evaporation
Alumina powder calcination pore volume sintering surface area thermal analysis
2010/4/23
In order to prepare fine alumina powders, an emulsion was prepared under optimum conditions. The emulsion was examined by optical microscopy and the prepared fine alumina powders were characterised by...
Some Properties of Cu, Zn-Superoxide Dismutase from Sheep Erythrocyte
Superoxide radical Cu Zn-superoxide dismutase 6-hydroxydopamine dismutation
2010/6/28
Superoxide dismutase (SOD) was isolated from sheep erythrocyte. SOD activity was measured under the optimized assay conditions by observing the variations of autoxidation rate of 6-hydroxydopamine (6-...