CO(2)-assisted template synthesis of porous hollow bi-phase gamma-/alpha-Fe(2)O(3) nanoparticles with high sensor property
文献类型：期刊论文
| 作者 | Ming J ; Wu YQ ; Wang LY ; Yu YC ; Zhao FY |
| 刊名 | journal of materials chemistry
 |
| 出版日期 | 2011 |
| 卷号 | 21期号:44页码:17776-17782 |
| 关键词 | GAS-SENSING PROPERTIES LITHIUM ION BATTERIES ALPHA-FE2O3 NANOSTRUCTURES MESOPOROUS SILICA CHEMICAL SENSOR SPHERES OXIDE MICROSPHERES GAMMA-FE2O3 SHELL |
| ISSN号 | 0959-9428 |
| 通讯作者 | zhao fy |
| 中文摘要 | in this contribution, monodisperse porous hollow bi-phase gamma-/alpha-fe (2)o(3) nanoparticles were successfully fabricated based on hard-template method with using carbon colloids as sacrificial templates. a new concept of assembling one kind of metal oxide with different crystalline structures into a single shell was presented for the first time. the critical procedure of coating carbon cores with a uniform layer of oxide was performed in co(2)-expanded ethanol, which is a versatile way to produce high-quality hollow oxide nanoparticles. the formation of the novel bi-phase shell was achieved through combining the reduction ability of carbon cores under inert calcination atmosphere and the unique chemical composition of intermediate-shell formed in co(2)-expanded ethanol. the porous hollow gamma-/alpha-fe(2)o(3) nanoparticles with an average diameter of 99 nm not only possess combined properties of gamma-fe(2)o(3) and alpha-fe(2)o(3), but also have a large specific surface area of 93.7 m(2) g(-1) and a high pore volume of 1.056 cm(3) g(-1), enabling them to have widespread applications in sensors, catalysis, magnetic and electrochemical areas, etc. herein, such hollow bi-phase gamma-/alpha-fe(2)o(3) nanoparticles were utilized to prepare a sensor device, and intriguingly it shows higher sensitivity and selectivity to ethanol than gamma-fe(2)o(3) powders and many other porous alpha-fe(2)o(3) materials reported recently. the probable sensor mechanism of hollow gamma-/alpha-fe(2)o(3) nanoparticles was discussed in detail. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| 公开日期 | 2012-06-11 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/44906]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Ming J,Wu YQ,Wang LY,et al. CO(2)-assisted template synthesis of porous hollow bi-phase gamma-/alpha-Fe(2)O(3) nanoparticles with high sensor property[J]. journal of materials chemistry,2011,21(44):17776-17782. |
| APA | Ming J,Wu YQ,Wang LY,Yu YC,&Zhao FY.(2011).CO(2)-assisted template synthesis of porous hollow bi-phase gamma-/alpha-Fe(2)O(3) nanoparticles with high sensor property.journal of materials chemistry,21(44),17776-17782. |
| MLA | Ming J,et al."CO(2)-assisted template synthesis of porous hollow bi-phase gamma-/alpha-Fe(2)O(3) nanoparticles with high sensor property".journal of materials chemistry 21.44(2011):17776-17782. |
入库方式： OAI收割
来源：长春应用化学研究所
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