“…Indeed, in the great majority of studies about NRB, different carbon materials are used as electrode, for example carbon paper [93,114,115,133,135], carbon cloth [134,137,143,145,150,151], graphite felt [84,112,155,116,118,119,122,146,[152][153][154], carbon felt [68,117,130,[156][157][158][159][160][161], graphite rods, bars and plates [70,107,113,131,138,162,163],…”