氧化-超声波除钾对活性炭材料电化学性能的影响

doi:10.3969/j.issn.0253-2417.2016.04.007

林产化学与工业 ›› 2016, Vol. 36 ›› Issue (4): 49-54.doi: 10.3969/j.issn.0253-2417.2016.04.007

氧化-超声波除钾对活性炭材料电化学性能的影响

侯敏¹, 孙康^1,2, 邓先伦^1,2, 肖凤龙¹, 林冠烽³

1. 中国林业科学研究院林产化学工业研究所;生物质化学利用国家工程实验室;国家林业局林产化学工程重点开放性实验室;江苏省生物质能源与材料重点实验室, 江苏南京 210042;
2. 中国林业科学研究院林业新技术研究所, 北京 100091;
3. 福建省林业科学研究院, 福建福州 350012

收稿日期:2015-10-08 出版日期:2016-08-25 发布日期:2016-09-01
通讯作者: 孙康(1976-),男,安徽当涂人,副研究员,博士,硕士生导师,主要从事炭材料开发与应用研究;E-mail:sunkang0226@163.com。 E-mail:sunkang0226@163.com
作者简介:侯敏(1988-),女,山东潍坊人,硕士生,研究方向为炭质吸附材料;E-mail:1106548832@qq.com
基金资助:
林业公益性行业科研专项（201404610）；国家自然科学基金资助项目（31400510）

Influence of Removal of Potassium from Activated Carbon by Using Oxidation-ultrasonic Method on Its Electrochemical Properties

HOU Min¹, SUN Kang^1,2, DENG Xian-lun^1,2, XIAO Feng-long¹, LIN Guan-feng³

1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab. for Biomass Chemical Utilization;Key and Open Lab. of Forest Chemical Engineering, SFA;Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China;
2. Research Institute of Forestry New Technology, CAF, Beijing 100091, China;
3. Fujian Academy of Forest, Fuzhou 350012, China

Received:2015-10-08 Online:2016-08-25 Published:2016-09-01

摘要/Abstract

摘要： 以毛竹炭化料为原料，经KOH活化、盐酸溶液洗涤，制得活性炭样品AC1。采用H₂O₂氧化-超声波法对活性炭AC1进行深度除钾，考察了不同条件对活性炭中K⁺含量的影响，并通过N₂吸附-脱附等温线、循环伏安、恒流充放电和交流阻抗等方法对活性炭的孔结构及电化学性能进行了表征。结果表明：在H₂O₂质量分数为0.6%，超声波处理温度为60℃，超声波处理时间为8 h条件下，处理后的活性炭AC2的K⁺仅为52 mg/kg，比表面积达3 156 m²/g，总孔容积1.625 cm³/g，中孔率79.8%，平均孔径2.208 nm。活性炭AC2用作电极材料时比电容达297 F/g，相比AC1提高28%，经3 000次循环后，电容保持率为95%，比AC1提高6个百分点，具有优异的电化学性能。

关键词: 活性炭, 除钾工艺, 氧化-超声波法, 电化学性能

Abstract: The activated carbon(AC1)was prepared from moso bamboo carbide by KOH activation and hydrochloric acid solution washing. Then AC1 sample was further treated with H₂O₂ oxidation-ultrasonic method to deeply remove the K⁺. The effects of different experimental conditions on the removal of K⁺ content of ACs were studied. The pore structures of the AC samples were characterized by N₂ adsorption-desorption isotherm, and electrochemical properties were characterized by cyclic voltammetry, constant current charge-discharge and electrochemical impedance spectroscopy. The results showed that high quality activated carbon(AC2)could be obtained under the conditions of mass fraction of H₂O₂ solution 0.6%, ultrasonic reaction temperature 60℃ and ultrasonic reaction time 8 h. And the K⁺ content was 52 mg/kg, specific surface area was 3 156 m²/g, pore volume was 1.625 cm³/g, ratio of mesopore was 79.8% and average pore size was 2.208 nm. For the electrochemical properties, it displayed a specific capacitance of 297 F/g and a high capacitance retention of 95% after 3 000 cycles. They increased by 28% and 6 percentage points, respectively, compared with AC1 sample. They indicated excellent capacitive behavior.

Key words: activated carbon, removal of K⁺ process, oxidation-ultrasonic method, electrochemical properties

中图分类号:

TQ35
TQ424.1

侯敏, 孙康, 邓先伦, 肖凤龙, 林冠烽. 氧化-超声波除钾对活性炭材料电化学性能的影响[J]. 林产化学与工业, 2016, 36(4): 49-54.

HOU Min, SUN Kang, DENG Xian-lun, XIAO Feng-long, LIN Guan-feng. Influence of Removal of Potassium from Activated Carbon by Using Oxidation-ultrasonic Method on Its Electrochemical Properties[J]. Chemistry and Industry of Forest Products, 2016, 36(4): 49-54.

参考文献

[1] LI Xue-liang,HAN Chang-long,CHEN Xiang-ying,et al.Preparation and performance of straw based activated carbon for supercapacitor in non-aqueous electrolytes[J].Microporous and Mesoporous Materials,2010,131(1):303-309.
[2] ZHANG Tao,ZHENG Ming-bo,LI Nian-wu,et al.Macro-microporous carbon for supercapacitors derived from rape seed shell[J].Materials Letters,2013,105:43-46.
[3] XIAO Yong,LONG Chao,ZHENG Ming-tao,et al.High-capacity porous carbons prepared by KOH activation of activated carbon for supercapacitors[J].Chinese Chemical Letters,2014,25(6):865-868.
[4] KUMAGAI S,SATO M,TASHIMA D.Electrical double-layer capacitance of micro- and mesoporous activated carbon prepared from rice husk and beet sugar[J].Electrochimica Acta,2013,114:617-626.
[5] GAO Feng,SHAO Guang-hua,QU Jiang-ying,et al.Tailoring of porous and nitrogen-rich carbons derived from hydrochar for high-performance supercapacitor electrodes[J].Electrochimica Acta,2015,155:201-208.
[6] 邢宝林,谌伦建,张传祥,等.中低温活化条件下超级电容器用活性炭的制备与表征[J].煤炭学报,2011,36(7):1200-1205. XING Bao-lin,CHEN Lun-jian,ZHANG Chuan-xiang,et al.Preparation and characterization of activated carbons for supercapacitor under moderate temperature activation condition[J].Journal of China Coal Society,2011,36(7):1200-1205.
[7] WANG Ya-wei,WEI Yuan-song,LIU Jun-xin.Effect of H₂O₂ dosing strategy on sludge pretreatment by microwave-H₂O₂ advanced oxidation process[J].Journal of Hazardous Materials,2009,169(1):680-684.
[8] RUEDA-MARQUEZ J J,SILLANPAA M,POCOSTALES P,et al.Post-treatment of biologically treated wastewater containing organic contaminants using a sequence of H₂O₂ based advanced oxidation processes:Photolysis and catalytic wet oxidation[J].Water Research,2015,71:85-96.
[9] HE Xiao-jun,LING Ping-hua,YU Mo-xin,et al.Rice husk-derived porous carbons with high capacitance by ZnCl₂ activation for supercapacitors[J].Electrochimica Acta,2013,105:635-641.
[10] 邢宝林,李龙,马爱玲,等.微波法煤基活性炭的制备及其电化学性能研究[J].材料导报,2013,27(18):133-136. XING Bao-lin,LI Long,MA Ai-ling,et al.Coal based activated carbon prepared by microwave heating and its electrochemical performance[J].Materials Review,2013,27(18):133-136.
[11] WU Ming-bo,AI Pei-pei,TAN Ming-hui,et al.Synthesis of starch-derived mesoporous carbon for electric double layer capacitor[J].Chemical Engineering Journal,2014,245:166-172.
[12] SHEN Hai-jie,LIU En-hui,XIANG Xiao-xia,et al.A novel activated carbon for supercapacitors[J].Materials Research Bulletin,2012,47(3):662-666.
[13] CHANG Jiu-li,GAO Zhi-yong,WANG Xiao-rui,et al.Activated porous carbon prepared from paulownia flower for high performance supercapacitor electrodes[J].Electrochimica Acta,2015,157:290-298.

[1]	吴少基, 江坤, 叶跃元, 刘运权, 王夺, 李水荣. 污泥与杨木屑共热解焦制活性炭及其废水处理应用[J]. 林产化学与工业, 2019, 39(4): 56-64.
[2]	佟国宾, 徐州, 李伟, 刘守新. 载钼活性炭的制备、表征及其苯吸附性能[J]. 林产化学与工业, 2018, 38(3): 33-40.
[3]	张文, 许升, 吕宗泽, 李志国. 氮氧掺杂木质素基炭材料的制备及其电化学性能[J]. 林产化学与工业, 2018, 38(3): 55-62.
[4]	杜颜珍, 申保收, 左宋林, 夏海岸. 水蒸气活化制备超级电容器木质活性炭的研究[J]. 林产化学与工业, 2018, 38(2): 29-38.
[5]	杨喜, 孔令宇, 刘杏娥, 马建锋, 江泽慧. 纤维素导电气凝胶及其复合材料在超级电容器中应用的研究进展[J]. 林产化学与工业, 2018, 38(1): 1-8.
[6]	王鹏飞, 沈娟章, 谭卫红. 稳定同位素比例技术对椰壳、杏壳和煤质活性炭种类鉴别的初探[J]. 林产化学与工业, 2018, 38(1): 18-24.
[7]	左宋林, 张杰, 刘军利, 孙康. 活性炭上挥发性有机化合物的真空脱附[J]. 林产化学与工业, 2017, 37(6): 19-27.
[8]	黄丽, 孙康, 朱光真, 刘石彩. 活性炭微结构及其对丁酮吸附-脱附性能的影响[J]. 林产化学与工业, 2017, 37(5): 146-152.
[9]	左宋林. 磷酸活化法制备活性炭综述(Ⅰ)——磷酸的作用机理[J]. 林产化学与工业, 2017, 37(3): 1-9.
[10]	张文彬, 左宋林, 王宜望. 氨气改性活性炭表面含氮官能团的形成与演变[J]. 林产化学与工业, 2017, 37(2): 35-41.
[11]	许伟, 刘军利, 缪存标, 孙康, 宋曜光. 乙基纤维素包覆成型活性炭的制备及其性能研究[J]. 林产化学与工业, 2017, 37(2): 49-56.
[12]	蒋剑春, 孙康. 活性炭制备技术及应用研究综述[J]. 林产化学与工业, 2017, 37(1): 1-13.
[13]	陈莉晶, 左宋林, 张秋红, 陈继锡, 王永芳. 二次水蒸气活化制备离子液体超级电容器活性炭的研究[J]. 林产化学与工业, 2017, 37(1): 87-93.
[14]	黄明堦, 黄碧珠, 林珊, 黄彪, 陈燕丹. 糯米灰浆粘结型富钙成型活性炭的制备及其性能[J]. 林产化学与工业, 2016, 36(6): 16-22.
[15]	田小云, 董寅生, 杨嘉楠, 张成明. 原料粒径与含水率对磷酸法活性炭性能的影响[J]. 林产化学与工业, 2016, 36(6): 93-99.

氧化-超声波除钾对活性炭材料电化学性能的影响

Influence of Removal of Potassium from Activated Carbon by Using Oxidation-ultrasonic Method on Its Electrochemical Properties

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

关于本刊

投稿指南

在线期刊

相关单位

联系我们