▎ 摘　　要

NOVELTY - Method for preparing anticorrosive graphene analog composite from biomass/biochar, involves (a) washing waste biomass with water and 1-10% acid/alcohol and drying the washed material for characterizing the raw ingredients for the preparation of anticorrosive graphene analog composite, (b) performing slow pyrolysis at various conditions, where the thermal processing is done by dry heating or hydrothermal heating in anoxic condition, and (c) dispersing the prepared silica-graphitic structure and graphene analog (s) based composite into proper solvent in different dispersion methods. USE - The method is used for preparing anticorrosive graphene analog as coating for metal surfaces to protect different component from environmental degradation. ADVANTAGE - The method prepares eco-friendly/green organic anticorrosive graphene analog. DETAILED DESCRIPTION - Method for preparing anticorrosive graphene analog composite from biomass/biochar, involves (a) washing waste biomass with water and 1-10% acid/alcohol and drying the washed material for characterizing the raw ingredients for the preparation of anticorrosive graphene analog composite, (b) performing slow pyrolysis at various conditions, where the thermal processing is done by dry heating or hydrothermal heating in anoxic condition, and (c) dispersing the prepared silica-graphitic structure and graphene analog (s) based composite into proper solvent in different dispersion methods, and mixing the dispersed silica-graphitic structure and graphene analog (s) based composite with additives, hardener, pigments, stabilizers to final coating material of size of 0.5-100 μ m that exhibits anticorrosive, anti-wear under different environmental degradation conditions of heat, salinity, acidic and alkaline stress, pressure and impact of sharp and impregnated surfaces, high and cold temperature episodes, high wind, high sea wind, high sandblast abrasion, high vapor and moisture.