A comparison of diesel engine soot with carbon black
A comparison of diesel engine soot with carbon black
复制标题
DOI：
10.1016/s0008-6223(99)00035-4
复制
发表时间：
1999-01-01
期刊：
影响因子：
10.9
通讯作者：
Peng, JCM
中科院分区：
文献类型：
--
作者：
Clague, ADH;Donnet, J;Peng, JCM
一系列的分析技术已被用来验证的化学和形态的柴油发动机和排气烟灰，并与商业炭黑的选择进行比较。已经观察到排气和发动机烟灰的化学组成，特别是它们的表面化学和发动机烟灰上吸附的润滑剂组分的存在的显著差异。这两种形式的烟灰都不同于炭黑-特别是它们的元素组成和表面化学。就形态而言，在初级颗粒水平上，两种形式的炭黑和典型的炭黑之间存在高度相似性，因为它们都显示出非常相似的初级颗粒尺寸，以及几乎不可区分的扰动石墨或乱层内部结构。提出了一个假设来解释这些意见的基础上的相似性，在炭黑和炭黑的生成过程中，但在淬火和淬火后的环境中的炭黑和炭黑的差异。然而，某些炭黑似乎有可能模仿用过的润滑油中烟灰的聚集行为。(C)1999 Elsevier Science Ltd.保留所有权利。
A range of analytical techniques has been used to characterise the chemistry and morphology of a diesel-engine and an exhaust soot, and a comparison made with a selection of commercial carbon blacks. Significant differences have been observed in the chemical composition of exhaust and engine soots, particularly in their surface chemistry and the presence of adsorbed lubricant components on the engine soot. Both forms of soot differ from carbon black -particularly their elemental composition and surface chemistry. In terms of morphology, at the primary particle level, there is a high degree of similarity between both forms of soot and typical carbon blacks in so far as they all show very similar primary particle sizes, and virtually indistinguishable perturbed graphitic or turbostratic internal structure. A hypothesis is proposed to account for these observations based on the similarities in the soot and carbon black generation process, but differences in the quenching and postquenching environment of soots and carbon blacks. Nevertheless there appears to be potential for certain blacks to mimic the aggregation behaviour of soots in used lubricating oils. (C) 1999 Elsevier Science Ltd. All rights reserved.