Sample Holder for Time Dependence Silver-decoration under Optical Microscope Observation

Abstract

Silver decoration is a highly reliable experimental method that has been used for a long time to confirm the location of hydrogen on metal. In order to measure hydrogen permeation through vanadium membranes, we made a cell for electrochemical charge of hydrogen on back side of the sample of silver decoration experiment. A small aquarium pump circulates the solution for electrochemical hydrogen charging and prevents hydrogen gas bubbles from interfering hydrogen charging to the sample. By placing this cell on the sample stage of an optical microscope, we can conduct silver decoration experiments while observing the microscope image.