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This research aims to develop a better carbon resistant anode compared to conventional Ni-BCZY anode for methane fueled protonic ceramic fuel cell (PCFC). Solid-state reaction process is used to prepare alloy Ni 1-x Cu x -BCZY anode in PCFC. Ni is doped with Cu for better carbon resistance. Results show that, Ni 0·9 Cu 0.1 -BCZY anode calcined at 800 °C for 0.5 h exhibit an electrical conductivity of 2054 S/cm at 600 °C, which is 8.4% less than traditional Ni-BCZY anode. XPS, and Raman data show that Ni 0·9 Cu 0.1 -BCZY anode exhibit resistance to carbon deposition compared to traditional anode. The best carbon deposition resistance is observed for the Ni 0·7 Cu 0.3 -BCZY sample. This work demonstrates the suppression of carbon deposition and inhibition of anode deformation in methane fueled PCFC with Ni 1-x Cu x -BCZY anode. This work is helpful for development of carbon-resistant materials for energy generation with solid oxide fuel cells. • Cu is doped in Ni-BCZY anode for increasing carbon deposition resistance (CDR). • Effects of Cu content on CDR and conductivity of anode are investigated. • EDS, XPS, EA and Raman spectroscopy are used to characterize CDR. • Increasing Cu content increases CDR, but reduces conductivity. [ABSTRACT FROM AUTHOR]