氮磷掺杂生物质介孔炭的合成及其电化学性能  

Synthesis and Electrochemical Properties of Biomass Mesoporous Carbon Doped with Nitrogen and Phosphorus

作　　者：张博[1] 李想 刘伟[1] 李晓丽[1] ZHANG Bo;LI Xiang;LIU Wei;LI Xiaoli(College of Chemistry and Chemical Resources Utilization,Northeast Forestry University,Harbin 150040,China;College of Materials Science and Engineering,Northeast Forestry University,Harbin 150040,China)

机构地区：[1]东北林业大学化学化工与资源利用学院,黑龙江哈尔滨150040 [2]东北林业大学材料科学与工程学院,黑龙江哈尔滨150040

出　　处：《林产化学与工业》2023年第2期56-62,共7页Chemistry and Industry of Forest Products

基　　金：黑龙江省自然科学基金联合引导项目(LH2020c040)。

摘　　要：以桉木木质纤维素作原料,六对羧基苯氧基环三磷腈(HCPCP)作为氮磷掺杂剂,NaOH作为共活化剂,采用先炭化后活化制备了木质纤维素基氮磷掺杂介孔炭(NPC)材料,采用SEM、XRD、XPS和拉曼光谱等方法对介孔炭材料进行表征。研究结果表明:活化温度650℃下得到的样品(NPC-650)具有丰富的蜂窝状孔隙结构,平均孔径为5.18 nm,介孔体积比89%。用介孔炭NPC-650作为阴极材料组装成锌离子混合电容器,在0.2 A/g电流密度下比电容为194 F/g,能量密度为87.3(W·h)/kg,功率密度为179.5 W/kg,在10 A/g电流密度下充/放电5000次,电容保持率98.9%。Nitrogen and phosphorus doped mesoporous carbon(NPC)materials were prepared by carbonization activation at different temperatures,using lignocellulose as raw material,hexa p-carboxylphenoxy cyclotriphosphazene(HCPCP)as nitrogen and phosphorus dopant with NaOH as coactivator,and were characterized by SEM,XRD,XPS and Raman spectra.The sample activated at 650℃(NPC-650)exhibited a rich reticular pore structure,with the average pore size of 5.18 nm,and the mesopore volume ratio reached 89%.A new zinc ion hybrid capacitor was assembled using NPC-650 as cathode material.Electrochemical performance tests showed the specific capacitance was 194 F/g at 0.2 A/g current density,the energy density was 87.3(W·h)/kg,and the power density was 179.5 W/kg.The capacitance retention rate was 98.9%after 5000 charging and discharging cycles under the current density of 10 A/g.

关 键 词：木质纤维素 介孔炭材料 锌离子混合电容器 

分 类 号：TQ35[化学工程]