摘要
随着科技的发展,氢气在化学化工、食品医疗以及核工业领域中的需求量越来越大,对纯度的要求也越来越高。钯合金膜由于具有较高的氢气渗透性,良好的热稳定性、化学稳定性及机械强度,以及对氢具有单一选择性等优点,成为了目前氢提取、分离和纯化的主要方法。本文主要介绍了钯合金膜的氢渗透机理、制备方法,以及二元及三元钯合金膜的研究现状,对目前受到最广泛关注的几种钯合金膜进行了简要的介绍,包括Pd-Ag合金、Pd-Y合金、Pd-Cu合金、Pd-Ag-Au合金等。
With the development of science and technology, there is an ever-growing demand for hydrogen in the fields of chemistry and chemical industry, food industry, medical industry, and also nuclear in-dustry. The requirements for the purity of hydrogen have been changed to higher and higher. Pal-ladium alloy membrane has higher hydrogen permeability, good thermal stability and chemical stability, and mechanical strength, as well as a single selectivity to the chemical hydrogen, so it now has become the main method of extraction, separation and purification of hydrogen. This paper mainly introduces the permeation mechanism and preparation methods of palladium alloy mem-brane, and the researching status of the binary and ternary of palladium alloy membranes, also briefly introduces several palladium alloy membranes currently the most widely concerned, in-cluding Pd-Ag alloy and Pd-Y alloy, Pd-Cu alloy, Pd-Ag-Au alloy etc.
出处
《核科学与技术》
2017年第3期142-152,共11页
Nuclear Science and Technology
