钯膜
- 网络Palladium membrane;palladium film
-
介绍了布拉格光栅型氢传感器的工作原理,开发出一种新型的由布拉格光栅和溅射钯膜组成的氢气敏光纤传感器。
A new optical fiber Bragg grating sensor for detection of hydrogen leakage was developed and the principle was introduced . The basic structure of the sensor included fiber Bragg gratings and deposited palladium film .
-
因此,本文以TiAl金属间化合物为支撑体,对于多孔镍膜和致密钯膜的制备进行了研究。
This paper investigated the preparation of porous nickel membrane and dense palladium membrane supported on TiAl intermetallic alloy .
-
测量了500℃时带有SiC膜的316L不锈钢的氚渗透率,与表面镀钯膜的316L相比,氚渗透率减低因子(PRF)值达到104以上。
The tritium permeation reduction factor ( PRF ) of 316L with film evaluated at 500 ℃ is up by a factor of 10 4 , compared with 316L with Pd film .
-
氢气在钯膜中溶解渗透服从Sievert定律,并且氢的渗透扩散过程是速率控制步骤;
The hydrogen solubility in Pd follows Sievert 's law , and hydrogen diffusion through the bulk of the palladium membrane is the rate determining step .
-
再经过退火处理,制得了Pd-Zr复合膜,膜面致密,钯膜与基体锆结合力强,内应力消失。
Having been annealed , the Pd film adheres strongly to the Zr substrate , and the internal stress between the Pd and the Zr disappears .
-
光催化法制备超薄钯膜及钯银合金膜的研究
Study on Ultrathin Palladium and Pd-Ag Alloy Membranes by PCD Methods
-
高性能钯膜及其在氨分解制氢中的应用
High-performance Pd membrane and its application in H_2 production from NH_3 decomposition
-
氨分解制氢与钯膜分离氢的研究
Hydrogen Generation from Ammonia Decomposition and Separation by Palladium Membrane
-
钯膜与钯膜反应器应用研究进展
Progress in Application of Palladium Membranes and Palladium Membrane Reactor
-
所制备的复合金属钯膜在含有~2%CO的混和气体中可以稳定地用于分离氢气。
Composition Pd membrane can separate hydrogen in gas mixtures containing 2 % CO.
-
由光催化沈积可在半导体载体上制备超薄钯膜。
An ultrathin Pd film is synthesized on semiconductor support by photocatalytic method .
-
氢分离用复合钯膜是目前材料研究中的一个热点。
Composite palladium membranes for hydrogen separation had been studied widely in recent years .
-
对氢气、硫化氢和氨等的检测通常使用钯膜栅场效应管。
Pd MOSFET are routinely used as sensors of hydrogen , hydrogen sulfide and ammonia .
-
为了建立膜反应器的数学模型,研究了钯膜的渗透规律。
The law of hydrogen permeating in the palladium membrane reactor was studied in this paper .
-
钯膜制备新技术
New Technique of Palladium Membrane Preparation
-
着重考察了该方法的活化条件对化学镀过程及钯膜表面形貌的影响。
Effects of activating conditions on the electroless plating and film surface morphology were mainly investigated .
-
钯膜的应用
The Applications of Palladium Membrane
-
采用电刷镀工艺制备了厚度1μm的钯膜。
Thin ( less that 1 ?μ m ) and continuous palladium film was fabricated by brush plating .
-
钯膜具有优异的透氢性,在苯一步羟基化制备苯酚中表现出良好的催化效果。
Pd membrane has exceptional hydrogen permeation and exhibits unique property for direct hydroxylation of benzene to phenol .
-
钛表面反应离子束镀钯膜的耐腐蚀性
Study on the Properties of Corrosion Resistance of Palladium Film on Titanium Substrate Formed by Reactive Ion Beam Plating
-
结果表明,在真空气氛下磁控溅射的钯膜上无法生长碳纳米管。
Various Pd films prepared on glass substrates by magnetron sputtering in vacuum or O2 ambience were used as catalysts .
-
介绍了钯膜的制备方法及在载体上制备超薄钯膜的改进技术。
The preparation methods of palladium membrane and modified technique are introduced for preparation of ultra-thin palladium membrane on support .
-
复合膜体现了钛硅催化氧化和钯膜透氢的双功能作用。
Composite membrane displayed the bifunctional effect of catalytic oxidation for Ti-contaning zeolite and H2 permeation for Pd membrane . 5 .
-
由无电子电镀过程制备的钯膜对氢渗透速率高,对氢有良好的选择性。
The Pd membrane prepared by the modified electroless plating has a high H2 permeation rates , meantime exhibits a good H2 selectivity .
-
综述了钯膜透氢原理及其影响因素,着重介绍了钯膜制备技术及新的改进技术。
The principles of permeation hydrogen of palladium membrane are briefly introduced in this paper , with the emphasis on preparation technique and the recent preparation progress .
-
结果发现,在一定温度范围内,氮气与氢气在钯膜表面的长期共存会导致其中毒失活,具体表现为膜的氢渗透率随时间逐渐下降。
It was found that the long-term coexistence of nitrogen with hydrogen on Pd membrane surface caused the membranes poisoned or even deactivated during certain temperature range .
-
以氧化铝多孔陶瓷管做为支撑体,通过对其表面进行有效修饰和控制制备的技术关键,可以制备高效复合金属钯膜。
Through the renovation of membrane surface and control of key preparation technology , high-effective composite Pd membrane is formed by Al 2O 3 porous ceramic tube as the support .
-
相对于其他氢分离技术而言,复合金属钯膜具有氢选择性高、透量大、热稳定性及耐压性好等优点。
Supported Pd membranes possess many advantages , such as high selectivity and permeability , good resistance to raised temperature and pressure , etc. , while compared with other conventional separation technologies for hydrogen .
-
氢的渗透通量随着钯膜两侧压力差和温度的增加而增大;渗透公式中的压力指数随膜厚的增加而减少。
With the increase of temperature and pressure difference crossover the membrane , the H2 permeability was increased . While the thickness of Pd membranes was increased , the exponential in H2 penetration expressions was decreased .
-
利用中空纤维陶瓷管构建了新颖的类似微通道结构式的钯膜反应器,比常规膜反应器表现出更高的催化性能:苯转化率从5-7%提高到15-20%左右。
A layer of Pd membrane was deposited on hollow fiber ceramic tube and similar ' microchannel ' reactor was constructed , which exhibited higher catalytic activity than conventional membrane reactor : benzene conversion increased from 5-7 % to 15-20 % .