Carbon Nanotube Preparation by Catalytic Pyrolysis of Phenolic Resin with Nickel Nitrate
摘 要
以硝酸镍为催化剂前驱体, 通过催化热解酚醛树脂的方法制备了碳纳米管; 采用X射线衍射仪、扫描电子显微镜和透射电子显微镜研究了热解温度和催化剂用量对碳纳米管合成的影响。结果表明: 热解温度为400 ℃时, 添加质量分数为0.75%镍的酚醛树脂热解产物中无碳纳米管生成; 温度在600~1 000 ℃时, 碳纳米管的生成量及长径比均随温度的升高先增后降, 最佳生长温度为800 ℃; 在800 ℃热解时, 随着镍添加量的增加, 碳纳米管的生成量和长径比均先增大后减小, 最佳添加量为酚醛树脂质量的0.75%, 此时碳纳米管的直径为30~60 nm, 长度可达几十微米。
Abstract
With nickel nitrate as catalyst precursor, the carbon nanotubes (CNTs) were prepared by the method of catalytic pyrolysis of phenolic resin. The effects of pyrolysis temperature and catalyst content on the synthesis of CNTs were investigated by X-ray diffraction, scanning electron microscopy and transmission electron microscopy. The results show that at the pyrolysis temperature of 400 ℃, no CNTs were formed in the pyrolytic products of phenolic resin with 0.75wt%Ni. At the pyrolysis temperatures of 600-1 000 ℃, the yield and length-diameter ratio of CNTs first increased then decreased with the increase of temperature and the optimal growth temperature was 800 ℃. When pyrolyzed at 800 ℃, the yield and length-diameter ratio of CNTs first increased then decreased with the increase of nickel content and the optimal nickel content was 0.75wt% of phenolic resin. Under this condition, the diameters of synthesized CNTs were 30-60 nm and the lengths were tens of microns.
中图分类号 TQ175.75 DOI 10.11973/jxgccl201608008
所属栏目
基金项目 国家自然科学基金资助项目(51472184)
收稿日期 2015/11/20
修改稿日期 2016/4/21
网络出版日期
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备注王军凯(1988-), 男, 河南平顶山人, 博士研究生。
引用该论文: WANG Jun-kai,DENG Xian-gong,ZHANG Hai-jun,DUAN Hong-juan,TAN Cao,SONG Jian-bo,ZHANG Shao-wei. Carbon Nanotube Preparation by Catalytic Pyrolysis of Phenolic Resin with Nickel Nitrate[J]. Materials for mechancial engineering, 2016, 40(8): 30~33
王军凯,邓先功,张海军,段红娟,谭 操,宋健波,张少伟. 通过硝酸镍催化热解酚醛树脂制备碳纳米管[J]. 机械工程材料, 2016, 40(8): 30~33
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【7】胡庆华,王玺堂,王周福,等.掺Fe酚醛树脂合成及其催化石墨化研究[J].材料工程,2010(z2): 359-361.
【8】赵雷,于晓燕,王国飞,等.氧化钴溶胶复合酚醛树脂的热解碳结构变化[J].功能高分子学报,2012,25(1): 58-61.
【9】李亚伟,谢婷,赵雷.氧化镍掺杂酚醛树脂热解炭的结构及抗氧化性研究[J].武汉科技大学学报(自然科学版),2011,34(1): 18-22.
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【12】WEI G,ZHU B,LI X,et al.Microstructure and mechanical properties of low-carbon MgO-C refractories bonded by an Fe nanosheet-modified phenol resin[J].Ceramics International,2015,41(1): 1553-1566.
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【14】ZHAO M,QIANG Z,JIA X,et al.Hierarchical composites of single/double-walled carbon nanotubes interlinked flakes from direct carbon deposition on layered double hydroxides[J].Advanced Functional Materials,2010,20(4): 677-685.
【15】张强,黄佳琦,赵梦强,等.碳纳米管的宏量制备及产业化[J].中国科学(化学),2013,43(6): 641-666.
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