nc-TiCx/a-C:H thin films are prepared hybrid Magnetron Sputtering - PECVD process.
Different carbon contents are obtained by changing the hydrocarbon flowrate.
Expanded lattice parameter of the TiCx phase and a-C:H phase are observed.
Electrochemical hydrogen insertion strongly depends on the carbon content.
The maximum insertion is 22 times more important than bulk TiCx.