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  • 论文(35)

Electroless Plating of Ni-Fe-P Alloy and Corrosion Resistance of the Deposit

Senlin WANG

材料科学技术(英文)

Electroless Ni-Fe-P alloys in an alkaline bath were plated. The effects of deposition parameters on the plating rate and the coating composition were examined. The weight loss test and the anodic polarization measurement of the deposits in 3.5 wt pct NaCl solution (pH7.0) showed that the deposits wi...

关键词: Nickel , null , null , null

Fabrication of Ni-alumina Composite Membrane via Powder and Bulk Impregnation Method for Hydrogen Separation

Supawan Vichaphund Duangduen Atong

材料科学技术(英文)

This work reports two preparation methods of Ni-Al2O3 composite to be used as a hydrogen separation membrane. The first method was powder impregnation while the second method was soaking-drying-firing or bulk impregnation. In the first method, the 10 wt pct Nickel (II) nitrate ...

关键词: Composite membrane , hydrogen separation , Nickel , Alumina

Surface Tension of Molten Ni and Ni-Co Alloys

Feng XIAO , Liang FANG , Kiyoshi NOGI

材料科学技术(英文)

Surface tension of molten Ni and Ni-Co (5 and 10 mass fraction) alloys was measured at the temperature range of 1773~1873 K using an improved sessile drop method with an alumina substrate in an Ar+3%H2 atmosphere. The error of the data obtained was analyzed. The surface tension of molten Ni and Ni-C...

关键词: Nickel , null , null , null

A Study of the Ni-Cr-Zr System at 900°C

Ximiao PAN , Zhanpeng JIN

材料科学技术(英文)

The phase equilibrium relations of the ternary Ni-Cr-Zr system at 900°C have been investigated by means of diffusion triple and electron probe microanalysis (EMPA) techniques. A series of tie lines and triangles have been determined, and the corresponding tentative isothermal section is presented ba...

关键词: Nickel , null , null , null

Corrosion Behaviour of Nickel in Chloroacetic Acids and its Inhibition

S.M.Rashwan , A.Emam , S.M.Abd El-Wahab , M.M.Mohamed

材料科学技术(英文)

Anodic dissolution behaviour of Ni in mono-, di- and trichloroacetic acids has been investigated by measuring current densities of Ni electrode (versus SCE) at different potentials. Effects of acid concentration, pH, scan rate and additive inhibitor on the potential were studied and they revealed th...

关键词: Corrosion , null , null , null

Crystal defects formed in electroformed nickel liners of shaped charges

Feng Yang , Wenhuai Tian , Chuanchao Feng , Baosheng Wang

金属学报(英文版) doi:10.1016/S1006-7191(08)60112-X

Two types of electroformed nickel liners of shaped charges were prepared by electroforming technique. X-ray diffraction (XRD), transmission electron microscopy (TEM), electron backscattering diffraction (EBSD) technique and high resolution electron microscopy (HREM) have been employed to investigate...

关键词: Electroformation , null , null , null , null

机械化学法制备的Al/Ce复合氧化物负载NiMo催化剂的加氢脱硫活性

Květa Jirátová , Alla Spojakina , Luděk Kalu?a , Radostina Palcheva , Jana Balabánová , Georgi Tyuliev

催化学报 doi:10.1016/S1872-2067(15)61016-6

将Al和/或Ce的硝酸盐与NH4HCO3球磨混合,采用机械化学法制备了Al2O3-CeO2载体(其中Ce含量为1–10 wt%),再以杂多钼酸盐(NH4)4NiMo6O24为活性金属Ni和Mo的前驱体,通过浸渍法制备NiMo6/Al2O3-CeO2催化剂,并将其用于1-苯并噻吩(BT)的加氢脱硫(H...

关键词: , , 氧化铝 , 氧化铈 , Anderson型杂多钼酸盐 , 1-苯并噻吩 , 加氢脱硫 , 机械化学法

Ni/SiO2-ZrO2催化剂焙烧温度对其催化愈创木酚加氢脱氧性能的影响

张兴华 , 张琦 , 陈伦刚 , 徐莹 , 王铁军 , 马隆龙

催化学报 doi:10.1016/S1872-2067(12)60733-5

采用化学沉淀法合成了SiO2-ZrO2复合氧化物载体,并以浸渍法制备了Ni/SiO2-ZrO2双功能催化剂,考察了焙烧温度对催化剂结构及其催化愈创木酚加氢脱氧制环己烷性能的影响.结果表明,经500°C焙烧催化剂的加氢脱氧活性最高,在Ni金属中心和SiO2-ZrO2载体材料的协同作用下,愈创木酚转化率...

关键词: , 氧化硅 , 氧化锆 , 焙烧温度 , 愈创木酚 , 加氢脱氧 , 环己烷

表面活性剂辅助共沉淀法制备Ni-Mg-Al固体碱催化剂用于CH4-CO2重整反应

谭鹏甲 , 高志华 , 沈朝峰 , 杜亚丽 , 李晓东 , 黄伟

催化学报 doi:10.1016/S1872-2067(14)60171-6

采用表面活性剂辅助共沉淀法制备了Ni-Mg-Al固体碱催化剂并用于CH4-CO2重整反应,探讨了表面活性剂对Ni(111), Ni(200)晶面的择优取向作用,在800°C下比较了不同表面活性剂制备的催化剂的催化性能,详细考察了CTAB制备的催化剂CB-LDO在不同反应温度下的催化活性和稳定性。采用...

关键词: 表面活性剂 , 共沉淀法 , , 镁铝氧化物 , 甲烷 , 二氧化碳 , 重整

MIL-101负载Ni@Pd核壳纳米粒子催化芳香硝基类化合物加氢

简思平 , 李映伟

催化学报 doi:10.1016/S1872-2067(15)60940-8

金属有机骨架(MOFs)材料是一种新型的沸石类多孔材料,是由金属离子和有机配体通过配位键键合而成的拓扑结构.相比其他多孔材料,MOFs拥有更高的比表面积、孔隙率以及结构可调控性.在催化方面,MOFs复合材料在多相催化领域已经引起了广泛的研究兴趣.贵金属纳米颗粒是一种在化学、化工、生物和医学等许多领域...

关键词: , , 核壳纳米粒子 , 金属有机骨架 , 芳香硝基类化合物 , 加氢 , 多相催化

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