[1]李亚宁,李广忠,王建忠,等.高温高压下甲烷对透氢钯合金膜的影响[J].中国材料进展,2020,(12):981-985.[doi:10.7502/j.issn.1674-3962.202008019]
　LI Yaning,LI Guangzhong,WANG Jianzhong,et al.Influence of Methane on Hydrogen Permeation Pd Alloy Membrane in High Temperature and High Pressure[J].MATERIALS CHINA,2020,(12):981-985.[doi:10.7502/j.issn.1674-3962.202008019]
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高温高压下甲烷对透氢钯合金膜的影响()
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中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
期数:
2020年第12期
页码:
981-985
栏目:
出版日期:
2020-12-30

文章信息/Info

Title:
Influence of Methane on Hydrogen Permeation Pd Alloy Membrane in High Temperature and High Pressure
文章编号:
1674-3962(2020)12-0981-05
作者:
李亚宁1; 李广忠1; 王建忠1; 任常弈凡2; 金辉2; 郭烈锦2
（1.西北有色金属研究院 金属多孔材料国家重点实验室，陕西 西安 710016）（2.西安交通大学 动力工程多相流国家重点实验室，陕西 西安 710049）
Author(s):
LI Yaning1;  LI Guangzhong1;  WANG Jianzhong1;  REN Changyifan2;  JIN Hui2;  GUO Liejin2
(1. State Key Laboratory of Porous Metals Materials, Northwest Institute for Non-ferrous Metal Research, Xi’an 710016, China) (2. State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong Univeristy, Xi’an 710049, China)
关键词:
甲烷; 钯合金膜; 高温高压; 影响
Keywords:
methane;  Pd alloy membrane;  high temperature and high pressure;  influence
分类号:
TG146.3+6；TQ028.8
DOI:
10.7502/j.issn.1674-3962.202008019
文献标志码:
A
摘要:
以多元钯（Pd）合金膜为研究对象，在H2+0.1%CH4（体积分数）混合气体中进行静态透氢实验。研究了高温（450，550，650 ℃）和高压（1，10 MPa）下CH4气体对Pd合金膜的影响。采用SEM、金相显微镜、XPS对与CH4作用前后的Pd合金膜的表面形貌、微观组织和表面状态进行了表征与分析。结果表明，与CH4作用后Pd合金膜的质量仍保持稳定，微观形貌没有变化。XPS结果表明CH4在高温高压下对Pd合金膜的表面化学状态也没有影响，高温高压下CH4既未发生碳化生成碳化物也未发生分解，碳单质是通过表面吸附在Pd合金膜表面以—CH—键的方式存在。与低温低压条件相比，高温高压下CH4分子与H2分子在Pd合金膜表面的竞争吸附很弱，Pd合金膜的CH4吸附量很少，可以忽略。
Abstract:
In this paper, static hydrogen permeation experiment of multicomponent palladium （Pd） alloy membranes was investigated in hydrogen gas with the presence of 0.1vol% methane gas. The influences of methane gas on Pd alloy membranes at high temperatures (450, 550, and 650 ℃) and high pressures (1, 10 MPa) were studied. Surface morphologies, microstructures and surface states of Pd alloy membranes were characterized and analyzed by SEM, metallurgical microscope and XPS. The results show that the quality of Pd alloy membrane is almost unchanged after being exposed in hydrogen gas with the presence of 01% methane gas. Furthermore, there is no variation on the surface morphology of Pd alloy membranes. XPS analysis shows that methane gas has no effect on the surface chemical state of Pd alloy membrane. Characterization peak of either carbides or decomposition was not observed. Carbon is adsorbed on the surface of Pd alloy membrane existing in the form of —CH—. Compared with low temperature and low pressure condition, there is a little methane gas absorbed on the surface of Pd alloy membrane under high temperature and high pressure. It might result from that the competitive adsorption between methane and hydrogen on the surface of Pd alloy membrane at high temperature and high pressure is very weak, which could be ignored.

备注/Memo

备注/Memo:
收稿日期：2020-08-27修回日期：2020-09-24 基金项目：国家重点研发计划项目（2016YFB0600103）第一作者：李亚宁，女，1980年生，高级工程师， Email:xiaoxi80625@163.com
更新日期/Last Update: 2020-12-01