Application of nanoparticle tracking analysis platform for the measurement of soot-in-oil agglomerates from automotive engines
Application of nanoparticle tracking analysis platform for the measurement of soot-in-oil agglomerates from automotive engines
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DOI：
10.1016/j.triboint.2013.09.018
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发表时间：
2014-02
影响因子：
6.2
通讯作者：
A. Rocca;G. D. Liberto;P. Shayler;C. Parmenter;M. Fay
中科院分区：
文献类型：
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作者：
A. Rocca;G. D. Liberto;P. Shayler;C. Parmenter;M. Fay
纳米颗粒跟踪分析(NTA)已被用于表征颗粒的碳烟团聚，并与透射电子显微镜(TEM)进行了比较。从一台轻型车用柴油发动机的油底壳中提取了碳烟纳米颗粒。样品用正庚烷稀释制备用于分析。对煤烟凝聚体的单独跟踪允许进行尺寸分布分析。将碳烟的大小与团聚体的投影二维电子显微镜图像的长度测量进行了比较。这两种技术都表明，油中碳烟以平均尺寸为120 nm的团聚形式存在。NTA能够测量多分散溶液中的颗粒，并报告油烟聚集体的大小和体积分布；与透射电子显微镜相比，它具有速度快、成本相对较低的优点。
Nanoparticle Tracking Analysis (NTA) has been applied to characterising soot agglomerates of particles and compared with Transmission Electron Microscoscopy (TEM). Soot nanoparticles were extracted from used oil drawn from the sump of a light duty automotive diesel engine. The samples were prepared for analysis by diluting with heptane. Individual tracking of soot agglomerates allows for size distribution analysis. The size of soot was compared with length measurements of projected two-dimensional TEM images of agglomerates. Both the techniques show that soot-in-oil exists as agglomerates with average size of 120 nm. NTA is able to measure particles in polydisperse solutions and reports the size and volume distribution of soot-in-oil aggregates; it has the advantages of being fast and relatively low cost if compared with TEM.