Ozone generator with heat pipe cooling

A device for generating ozone from oxygen-containing gas, the device comprising:

• an electrode arrangement comprising:
• at least one high-voltage electrode;
• at least one annular ground electrode;
• an annular dielectric arranged between the at least one high-voltage electrode and the at least one ground electrode, each of the at least one high-voltage electrode, the at least one annular ground electrode, and the annular dielectric comprising an electrode arrangement component, and
• one or more annular heat pipes defining, surrounding, or defining and surrounding the at least one high-voltage electrode, and surrounded by at least one other electrode arrangement component, each of the one or more annular heat pipes comprising an annular space in cross section defined by radially spaced walls, the annular space containing a condensable heat transfer medium, the heat pipe comprising an evaporator section and a condensation zone, the heat pipe configured for vaporization of the heat transfer medium in the evaporator section, condensation of vaporized heat transfer medium in the condensation zone, and return of condensed heat transfer medium to the evaporator section.