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| Green biopolymer nanocomposites facility: supercritical carbon dioxide characterisation and processing for nanomaterials and biopolymers | |
| 项目编号 | LE110100033 |
| Peter Halley | |
| 项目主持机构 | The University of Queensland |
| 开始日期 | 2011 |
| 结束日期 | 2013-12-31 |
| 英文摘要 | This renewal proposal of an ongoing research project within the research unit INUIT (Ice Nuclei research UnIT) aims for the physico-chemical characterization of ambient ice nucleating particles (INP) and ice particle residuals (IPR). Two major experimental techniques will be deployed: counterflow virtual impactor (CVI) technique and laser ablation aerosol mass spectrometry. INP in ambient aerosol will be activated by an IN counter and the ice crystals will be extracted and evaporated by a pumped CVI system that was developed in the first phase of INUIT. The released IN particles will be analyzed by the aerosol mass spectrometer. This experiment will be carried out during a field campaign in proximity to sources of potential ice nucleating particles (mineral dust, bioparticles, anthropogenic pollution particles). An appropriate location is the Mediterranean region, e.g. southern Spain. IPR will be sampled directly from mixed phase clouds by a specially designed Ice-CVI that extracts only ice crystals and rejects the supercooled droplets. The ice is evaporated in the dry counterflow and the residual particles will be analyzed by the aerosol mass spectrometer. This experiment will be conducted on a mountain station (Jungfraujoch). The combination of IN counter, pumped CVI and aerosol mass spectrometer will also be applied under laboratory conditions for the investigation of the ice nucleation behavior of external and internal particle mixtures (e.g., biologicalmineral). The single particle aeLosol mass spectrometer will also be used for the characterization of the mixing state of the laboratory-generated particle mixtures. |
| 学科分类 | 10 - 材料科学 |
| 资助机构 | AU-ARC |
| 项目经费 | 150000 |
| 国家 | AU |
| 语种 | 英语 |
| 文献类型 | 项目 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/75846 |
| 推荐引用方式 GB/T 7714 | Peter Halley.Green biopolymer nanocomposites facility: supercritical carbon dioxide characterisation and processing for nanomaterials and biopolymers.2011. |
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