Synthesis And Application Of Alage Based Nitrogen-doped Carbon Materials

Biomass as a renewable resource has been widely studied and concerned.To synthesize bio-carbon materials is an easy and efficient way to use biomass resource.It has great application prospects.It is known that modification of carbon materials can effectively improve its surface and electrochemical properties,which can valid increased utilization value and application range of carbon materials.A common modification method of carbon materials is nitrogen noped in carbon form.In this experiment,algae and glucose were used as raw materials.Alage used as carbon and nitrogen source.Glucose can reserve nitrogen in produce effectively.By hydrothermal method to get solid and liquid precursor.The liquid precursor synthesized nitrogen-noped order mesopore carbon materials by hard template.And the solid precursor synthesized nitrogen noped high specific surface area carbon materials by KOH activated.Two kinds of carbon materials were used to CO2 adsorbent,double-layer supercapacitor and load Ru as catalyst carrier for lignin depolymerization.Tested product characteristic and application property.The main reasearch conclusion are follows:(1)By this synthetic method,all product have nitrogen-noped.This shows that the synthetic method has universality,which can be used for other biomass raw materials to synthesize carbon materials doped with heteroatom element.Specific surface area of product can control by adjust synthetic temperature.(2)Product of spirulina hydrothermal with glucose in 750 0C has the highest specific surface area of 1893.26 m2 g-1 and nitrogen content of 2.9 wt%.(3)Carbon materials in this experiment have excellent CO2 adsorptivity and capacitance.At 0?,adsorbing capacity of CO2 up to 5.72 mmol g-1.Morever,in double-layer supercapactor,capacitance up to 335.7 F g-1.It is found that nitrogen element plays a significant role in adsorption and capacitance by compared with different samples.(4)The order mesopore carbon loaded Ru as catalyst for catalytic hydrogenolysis apple lignin.Compared with commercial Ru/C catalyst,conversion rate of oil was 45%,which higher than commercial catalyst,because of better pore structure.