基于MOF模板法可控合成不同形貌α-Fe_2O_3纳米棒及其气敏性质研究
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- 英文论文题名：MOF-Templated Controllable Synthesis of α-Fe_2O_3 Nanorod with Different Morphologies and Their Gas Sensing Properties
- 论文作者：高平义 ; 刘荣 ; 贾潇
- 英文论文作者：Pingyi Gao ; Rong Liu ; Xiao Jia ; State Key Laboratory of Photocatalysis on Energy and Environment ; College of Chemistry ; Fuzhou University
- 年：2016
- 作者机构：福州大学化学学院能源与环境光催化国家重点实验室;
- 论文关键词：模板法 ; 金属有机框架结构 ; α-Fe_2O_3 ; 气敏
- 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-第三十六分会：纳米材料合成与组装
- 语种：中文
- 分类号：TB383.1
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十六分会 ; 纳米材料合成与组装
- 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：339k
- 原文格式：D
- 会议级别：全国
摘要
通过简单的溶剂热法,可控合成出了不同形貌的MIL-88A材料~[1]。在空气中煅烧后得到了不同长度的α-Fe_2O_3纳米棒。用X射线粉末衍射(XRD)、扫描电子显微镜(SEM)对材料的晶体结构、形貌进行了表征。从SEM图可以看出样品煅烧后基本保持了原有的形貌。通过对不同还原性气体的气敏响应测试研究了材料的气敏选择性。结果表明,两种形貌的α-Fe_2O_3纳米棒对丙酮气体表现出更高的灵敏度,并进一步研究了对不同浓度的丙酮气体灵敏度响应。
MIL-88 A templates with different morphologies were synthesized via a simple solvothermal method by controlling the proportion of reactants. The derived porous α-Fe_2O_3 nanostructures preserve the original nanorod morphology after pyrolysis of MIL-88 A in air. The samples were characterized by X-ray powder diffraction(XRD) and scanning electron microscope(SEM) respectively. The gas-sensing properties of the as-synthesized α-Fe_2O_3 nanorods were investigated towards various reducing gases. Experimental results showed that the samples exhibited the highest sensitivity to acetone vapor.
MIL-88 A templates with different morphologies were synthesized via a simple solvothermal method by controlling the proportion of reactants. The derived porous α-Fe_2O_3 nanostructures preserve the original nanorod morphology after pyrolysis of MIL-88 A in air. The samples were characterized by X-ray powder diffraction(XRD) and scanning electron microscope(SEM) respectively. The gas-sensing properties of the as-synthesized α-Fe_2O_3 nanorods were investigated towards various reducing gases. Experimental results showed that the samples exhibited the highest sensitivity to acetone vapor.
引文
[1]Horcajada,P.;Chalati,T.;Serre,C.;Gillet,B.;Sebrie,C.;Baati,T.;Eubank,J.F.;Heurtaux,D.;Clayette,P.;Kreuz,C.;Chang,J.S.;Hwang,Y.K.;Marsaud,V.;Bories,P.N.;Cynober,L.;Gil,S.;Ferey,G.;Couvreur,P.;Gref,R.Nat Mater 2010,9,(2),172-178.
[2]Xu,X.;Cao,R.;Jeong,S.;Cho,J.Nano Lett.2012,12,(9),4988-91.
[2]Xu,X.;Cao,R.;Jeong,S.;Cho,J.Nano Lett.2012,12,(9),4988-91.