Current Status and Application of Woodceramics Made from Biomass

Abstract

Woodceramics (WCMs) are the new functional carbon materials fabricated by sintering woody materials impregnated with phenolic resin. The fabrication process, properties and application of WCMs are introduced. The properties of WCMs depend on the sintering condition. WCMs have been studied as humidity and gas sensors, electrode for polymer electrolyte fuel cell (PEFC) and electromagnetic wave absorber. Electrical impedance of WCMs changes as humidity and ammonia gas concentration vary. The generated power of the PEFC with WCMs electrodes is almost the same as that of the PEFC with carbon paper electrodes. The shielding and loss properties of the electromagnetic wave absorber made from WCMs denote the same tendency of that of commercially-used electromagnetic wave absorber.