The present invention is intended for providing a porous film having excellent film uniformity, and is capable to contribute for improving cyclic and rate properties, which is provided on a surface of electrode used for a secondary battery and the like. The reactor is designed to maximize conversion of the solid biomass material, while limiting excess cracking of primary reaction products. The ceramic layer is disposed between the seed layer and the host. The slave portion is coupled between the control portion and the articulating surgical instrument.