Hydrogen sensor with active layer and method of manufacturing hydrogen sensors

摘要

Hydrogen sensor including a substrate on which there is deposited an active layer of material comprising a first element selected from the rare earth family, a second element selected from the platinum group metals and a third element selected from the alkaline earth metal family.

主权项

1. A hydrogen sensor including:
a substrate; and an active layer of a material formed on the substrate, the material comprising:
a first element which is an element from the rare earth family or a combination of at least two elements from the rare earth family,a second element which is an element from the platinum group metals or a combination of at least two elements from the platinum group metals, anda third element which is an element from the alkaline earth metal family or a combination of at least two elements from the alkaline earth metal family, wherein the active layer has property of absorption and desorption of hydrogen at ambient temperature, and wherein the active layer comprises a material selected from a group consisting of:
LaMg2Pt,Sc(X)La(1-X)Mg2Pd, where X is a numerical value greater than 0 and less than 1,La(1-Y)Ce(Y)Mg2Pd, where Y is a numerical value greater than 0 and less than 1,LaMg(2-Z)Ca(Z)Pd, where Z is a numerical value greater than 0 and less than 1, andLaMg2Pd(1-W)Pt(W), where W is a numerical value greater than 0 and less than 1.