欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
本文用X—ray衍射（XRD）方法研究了磁控溅射制备的MmNi3.5（CoAlMn）1.5／Mg（简写为Mg／MmM5）复合薄膜吸放氢前后的结构变化与储氢性能间的关系。XRD表明Mg／MmM，多层膜中Mg层的储氢性能有一定程度的改善，吸，放氢温度分别为473K和523K。用透射电镜（TEM）分析方法研究了Mg／MmM5多层薄膜的微观结构，Mg／MmM5多层膜中Mg层和MmM5层的结构与衬底的性质有密切关系。Mg层由纳米晶和沿垂直于衬底表面的[001]方向生长的柱状晶组成；MmM5层则由纳米晶和非晶组成。Mg／MmM5多层膜在吸氢过程中表现为（103）面平行于衬底生长的柱状晶先吸氢，然后是（001）面生长的柱状晶再吸氢。
英文摘要：
The change of microstructures and hydrogen storage properties of MmNi3.5 （CoAlMn）15/Mg （MmM5 denoting MmNi3.5 （CoAlMn）1.5 here and thereby） multi-layer thin films were studied using X-raydiffraction（XRD）. XRD results show that Mg/MmM5 multi-layer thin films could absorb and desorb hydrogen at 473 K and 523 K respectively. The microstructure of Mg/MmM5 muhi-layer thin films as-prepared was also studied using cross section transmission electron microscopy （XTEM）. The Mg layers in the as-prepared thin films mainly compose of two regions： randomly orientated nanocrystalline region at the bottom of the layer with a columnar crystallite region on top of them. These Mg columnar crystallites have their [ 001 ] directions roughly parallel to the growth direction and the average lateral size of these columnar crystallites is about 100nm. The MmM5 layer in the as-prepared thin films contains two regions as well： an amorphous region of about 4 nm thick at the bottom of the layer with a nanocrystalline region on the top. During the hydrogenation process, the Mg columnar crystallites with （103） orientation absorb hydrogen first and then these with （001） orientation and those with （101） orientation.
同期刊论文项目
同项目期刊论文
A Quantum-Chemical Study on Understanding the Dehydrogenation Mechanisms of Metal (Na, K, or Mg) Cat
Study on the electrochemical properties of Mg0.8Ti0.1Al0.1-xPdxNi (x=0.02-0.08) hydrogen storage all
Facile preparation and good electrochemical hydrogen storage properties of chain-like and rod-like C
Mechanisms for the enhanced hydrogen desorption performance of the TiF4-catalyzed Na2LiAlH6 used for
Facile Synthesis and Electrochemical Properties of Co-S Composites as Negative Materials for Alkalin
Reversible hydrogen storage properties and favorable co-doping mechanism of the metallic Ti and Zr c
Effects of annealing on microstructures and electrochemical properties of La_(0.8)Mg_(0.2)Ni_(2.4)Mn
Influences of cooling rate the microstructural and electrochemical properties of a Fe Ti-V-based mul
Effects of amorphous Co-C on the structural and electrochemical characteristics of La0.8Mg0.2Ni0.8Mn
Formation Reactions and the Thermodynamics and Kinetics of Dehydrogenation Reaction of Mixed Alanate
Effects of rare earth elements substitution for Ti on the structure and electrochemical properties o
Active species of CeAl4 in the CeCl3-doped sodium aluminium hydride and its enhancement on reversibl
Functional materials with high-efficiency energy storage and conversion for batteries and fuel cells
Electrochemical properties of magnesium-based hydrogen storage alloys improved by transition metal b
Influence of temperature and hydrogen pressure on the hydriding/dehydriding behavior of Ti-doped sod
Effect of Al and Ce substitutions of the electrochemical properties of amorphous MgNi-based alloy el
Effects of Ti and Zr substituted on the electrochemical characteristics of MgNi-based alloy electrod
期刊信息
位置：