生物质基介孔碳材料的制备及性能研究
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- 英文论文题名：Mesoporous Carbon Materials Derived from Biomass
- 论文作者：马志爽 ; 张宏晔 ; 刘志敏
- 英文论文作者：Zhishuang Ma ; Hongye Zhang ; Zhimin Liu ; Institute of Chemistry ; Chinese Academy of Sciences
- 年：2016
- 作者机构：中国科学院化学研究所;
- 论文关键词：木质纤维素 ; 介孔碳材料 ; 氮掺杂 ; 催化材料
- 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-第三十三分会：绿色化学
- 语种：中文
- 分类号：TQ127.11;TB383.4
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十三分会 ; 绿色化学
- 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：156k
- 原文格式：D
- 会议级别：全国
摘要
介孔碳材料具有广泛用途,由木质纤维素制取介孔碳材料是获得这类材料的重要途径。然而由于木质纤维素的难溶性,其加工利用面临诸多难题。我们发展了以ZnCl_2+KCl熔融盐为介质,通过高温煅烧木质纤维素制备介孔碳材料的方法,获得一系列介孔碳材料。例如,分别以葡萄糖、纤维素、木质素为碳源,通过梯度程序升温和分段煅烧,获得介孔比例达~80%、比表面为1000m~2 g~(-1)左右的介孔碳材料,介孔尺寸在2~30nm范围内[1]。以葡萄糖和三聚氰胺为碳源和氮源,通过在熔融盐中高温煅烧,获得氮掺杂的介孔材料,其氮含量可达11.9%,比表面积高达>1800m~2 g~(-1)。通过调控葡萄糖和三聚氰胺的比例可调控掺杂的氮含量[2]。以上材料,由于其较高的比表面积和表面含氧、含氮基团的存在,在催化领域显示广阔的应用前景。例如,所获得的介孔碳材料可用于金属纳米粒子的载体,制备金属纳米催化材料[1,2]。而氮掺杂的介孔碳材料可高效催化以叔丁醇过氧化氢为氧化剂的烃氧化[2]。
Development of mesoporous carbons with high surface areas from biomass is of significance for many applications.Herein we report a simple route to prepare mesoporous carbons via calcinating the biomass feedstocks(including glucose,cellulose and lignin) using eutectic salts of KCl and ZnCl_2 as the porogen,and a series of mesoporous carbons with BET specific surface areas higher than 1000 m~2·g~(-1) were obtained.Taking the biomass as the carbon resource and melamine as the nitrogen resource,N-doped mesoporous carbons were obtained using the similar procedure.The N content reached up to 11.9%and BET specific surface area up to 1800 m~2·g~(-1).The resultant mesoporous carbon materials displayed promising applications in catalysis.
Development of mesoporous carbons with high surface areas from biomass is of significance for many applications.Herein we report a simple route to prepare mesoporous carbons via calcinating the biomass feedstocks(including glucose,cellulose and lignin) using eutectic salts of KCl and ZnCl_2 as the porogen,and a series of mesoporous carbons with BET specific surface areas higher than 1000 m~2·g~(-1) were obtained.Taking the biomass as the carbon resource and melamine as the nitrogen resource,N-doped mesoporous carbons were obtained using the similar procedure.The N content reached up to 11.9%and BET specific surface area up to 1800 m~2·g~(-1).The resultant mesoporous carbon materials displayed promising applications in catalysis.
引文
[1]Ma,Z.;Zhang,H;Liu,Z.,et al.J.Mater.Chem.A.2014,2(45):19324.
[2]Ma,Z.;Zhang,H;Liu,Z.,et al.Green Chem.2016,18:1976.
[2]Ma,Z.;Zhang,H;Liu,Z.,et al.Green Chem.2016,18:1976.