纳米片组装大孔可调的整体式多孔炭
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- 英文论文题名：Carbon nanosheets assembled monoliths with tunable macropore structures
- 论文作者：杨超 ; 陆安慧
- 英文论文作者：Chao Yang ; An-Hui Lu ; State Key Laboratory of Fine Chemicals ; School of Chemical Engineering ; Dalian University of Technology
- 年：2016
- 作者机构：大连理工大学精细化工国家重点实验室,大连理工大学;
- 论文关键词：氧化石墨烯 ; 片层多孔炭 ; 大孔结构
- 英文论文关键词：graphene oxide ; carbon nanosheets ; macropore structure
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十二分会： 多孔功能材料
- 语种：中文
- 分类号：TB383;O613.71
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十二分会 ; 多孔功能材料
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：191k
- 原文格式：D
- 会议级别：全国
摘要
本文以间苯二酚和甲醛为炭源,氧化石墨烯为模板剂,天冬酰胺为桥接分子,通过将不同尺寸氧化石墨烯按照一定比例混合后作为模板剂的方法,制备了一系列整体式纳米片层多孔炭材料。通过不同尺寸氧化石墨烯的比例,可实现由纳米片组装的、大孔可调的整体式多孔炭的可控合成。研究结果表明:该类炭材料具有相近的微孔结构和表面化学官能团,可调的大孔结构。氮吸附测试结果表明:样品的比表面积均约为500 m~2 g~(-1),峰值孔径约为0.5 nm,压汞测试结果表明:在一定混合比例范围内,样品的大孔孔径在0.65-1.82μm之间可调,大孔比表在39.0-13.9 m~2g~(-1)之间可调,两者均与大尺寸氧化石墨烯所占比例(X)呈线性关系(见Fig.1)。
In order to modulate the macropore structure,a series of carbon nanosheet monoliths were synthesized using asparagine as catalyst,resorcinol and formaldehyde as carbon precursors,andgraphene oxide as template through mixing graphene oxide with different size by the rate.The result indicated thatall of the carbon material had the same micropore structure,the same surface chemical functional group and different macropore structure.Nitrogen adsortion isotherm showed that S_(BET) was about 500 m~2 g~(-1),and the micropore diameter was 0.5 nm.Hg intrusion test curve showed that the macropore diameter varied from 0.65 μm to 1.82 μm,and the S_(total)varied from39.0 m~2 g~(-1) to 13.9 m~2 g~(-1) within a certain mixing proportion.In addition,both of the two parameters fitted linear correlation with the mixing proportion.
In order to modulate the macropore structure,a series of carbon nanosheet monoliths were synthesized using asparagine as catalyst,resorcinol and formaldehyde as carbon precursors,andgraphene oxide as template through mixing graphene oxide with different size by the rate.The result indicated thatall of the carbon material had the same micropore structure,the same surface chemical functional group and different macropore structure.Nitrogen adsortion isotherm showed that S_(BET) was about 500 m~2 g~(-1),and the micropore diameter was 0.5 nm.Hg intrusion test curve showed that the macropore diameter varied from 0.65 μm to 1.82 μm,and the S_(total)varied from39.0 m~2 g~(-1) to 13.9 m~2 g~(-1) within a certain mixing proportion.In addition,both of the two parameters fitted linear correlation with the mixing proportion.
引文
[1]Cong H L,Zhang M R,Chen Y L,Chen K,Hao Y J,Zhao Y F,Feng L.[J]Carbon,2015,92:297.
[2]Hao G P,Jin Z Y,Sun Q,Zhang X Q,Zhang J T,Lu A H.[J]Energy Environ.Sci,2013,1:3740.
[2]Hao G P,Jin Z Y,Sun Q,Zhang X Q,Zhang J T,Lu A H.[J]Energy Environ.Sci,2013,1:3740.