Pictures about the experimental work

How to make a platinum electrode: The tools and the materials are: tin wire, platinum wire, tweezers, cutting tile, cupper wire, glue, and a welding torch

:

tweezers cutting tile

tin welding wire

glue

welding torch

cupper wire

platinum wire

First put tin on the cupper wire with the welding torch

The next step is to weld the piece of platinum wire to the cupper wire:

This picture shows the appearance of the electrode without glue:

The last step is to cover the connection between the cupper and the platinum wires with a glue layer.

This is the final appearance of the platinum electrode

Pictures about the water electrolysis apparatus that students have done in the lab: