氮磷掺杂生物质介孔炭的合成及其电化学性能

doi:10.3969/j.issn.0253-2417.2023.02.008

林产化学与工业 ›› 2023, Vol. 43 ›› Issue (2): 56-62.doi: 10.3969/j.issn.0253-2417.2023.02.008

氮磷掺杂生物质介孔炭的合成及其电化学性能

张博¹, 李想², 刘伟¹, 李晓丽¹^,*()

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

收稿日期:2022-02-18 出版日期:2023-04-28 发布日期:2023-04-26
通讯作者: 李晓丽 E-mail:lixiaoli0903@163.com
作者简介:李晓丽, 副教授, 博士, 硕士生导师, 主要从事生物质多孔碳材料的研究; E-mail: lixiaoli0903@163.com
张博(1996-), 男, 黑龙江大庆人, 硕士生, 从事生物基电极材料制备及其电性能研究

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

Bo ZHANG¹, Xiang LI², Wei LIU¹, Xiaoli LI¹^,*()

1. College of Chemistry and Chemical Resources Utilization, Northeast Forestry University, Harbin 150040, China
2. College of Materials Science and Engineering, Northeast Forestry University, Harbin 150040, China

Received:2022-02-18 Online:2023-04-28 Published:2023-04-26
Contact: Xiaoli LI E-mail:lixiaoli0903@163.com

摘要/Abstract

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5 000次，电容保持率98.9%。

关键词: 木质纤维素, 介孔炭材料, 锌离子混合电容器

Abstract:

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 ratioreached 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/gcurrent 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 5 000 charging and discharging cycles under the current density of 10 A/g.

Key words: lignocellulose, mesoporous carbon materials, zinc ion hybrid capacitor

中图分类号:

TQ35

张博, 李想, 刘伟, 李晓丽. 氮磷掺杂生物质介孔炭的合成及其电化学性能[J]. 林产化学与工业, 2023, 43(2): 56-62.

Bo ZHANG, Xiang LI, Wei LIU, Xiaoli LI. Synthesis and Electrochemical Properties of Biomass Mesoporous Carbon Doped with Nitrogen and Phosphorus[J]. Chemistry and Industry of Forest Products, 2023, 43(2): 56-62.

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样品sample	BET比表面积/ (m²·g^-1) S_BET	总孔体积/ (cm³·g^-1) V_total	微孔体积/ (cm³·g^-1) V_mic	介孔体积/ (cm³·g^-1) V_mes	V_mes/V_total	平均孔径/nm D_pore
EC	2.56	0.014 8	0.000 0	0.014 8	1	23.16
NPC-550	771.12	0.838 8	0.127 3	0.711 5	0.84	4.34
NPC-600	860.69	0.961 9	0.136 0	0.825 9	0.85	5.09
NPC-650	988.45	1.281 8	0.139 5	1.142 3	0.89	5.18
NPC-700	888.15	0.914 7	0.149 8	0.764 9	0.83	4.11

样品sample	C/%	N/%	O/%	P/%
EC	92.12	0	7.82	0
NPC-550	86.07	1.92	10.97	1.04
NPC-600	88.42	1.84	10.69	0.95
NPC-650	89.06	1.27	8.84	0.83
NPC-700	91.04	0.98	7.24	0.40

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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

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