▎ 摘　　要

The novel gas-sensing material of graphene-loaded PdCl2 was prepared by the facile method without the use of any additive or organic active agent. The as-prepared electrode material is consisted of two different morphologies: thin sheets and small particles with the size of several nanometers. In order to investigate its gas sensing properties, it was used to fabricate a whole solid-state planar electrochemical carbon monoxide sensor. The results show that the sensor has a practical-use level: response time is 8 similar to 9 s; detect of limit is 0.1 mu g.g(-1); sensitivity is 63.34 mV/(mu g.g(-1)).