Evolution of diesel particulate physicochemical properties using nonthermal plasma
Evolution of diesel particulate physicochemical properties using nonthermal plasma
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使用非热等离子体研究柴油颗粒物理化学性质的演变
DOI：
10.1016/j.fuel.2019.05.106
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发表时间：
2019-10
期刊：
影响因子：
7.4
通讯作者：
Wang Weikai
中科院分区：
文献类型：
--
作者：
Shi Yunxi;Cai Yixi;Li Xiaohua;Ji Liang;Chen Yi;Wang Weikai
非热等离子体（NTP）技术可以在低得多的温度（≤200 °C）下氧化和分解柴油机颗粒物（PM），显示出潜在的应用前景。搭建了NTP喷射系统处理柴油机PM的试验台架，并将NTP反应前后的PM样品累积在滤纸上。PM样品的表观形态、氧化活性、表面官能团和可溶性有机部分（SOF）组分使用现代技术（即，SEM、TGA、FT-IR和GC-MS）。结果表明，NTP反应后，颗粒物的数量大幅减少，表面堆积结构变得相对光滑; SOF的比例减少，DS的比例增加。碳层的边缘或表面上的碳原子和官能团首先被NTP活性物质（O3，O）氧化形成CO或CO2，导致碳原子从原始键脱落，并产生新的含氧官能团作为中间体。NTP反应后，氧化特征温度降低，高碳原子数组分转化为低碳原子数组分。结果表明，NTP能提高PM的氧化活性，促进PM的低温燃烧; PM的分解过程可以看作是一个不断去除碳原子的过程。
Nonthermal plasma (NTP) technology can oxidize and decompose diesel particulate matter (PM) under much lower temperatures (≤200 °C), showing promise for potential applications. A test bench for the treatment of diesel PM using an NTP injection system was constructed, and PM samples before and after NTP reaction were accumulated on filter papers. The apparent morphology, oxidative activity, surface functional groups, and soluble organic fractions (SOF) components of PM samples were investigated using modern techniques (i.e., SEM, TGA, FT-IR, and GC–MS). Results show that after NTP reactions, the amount of PM declined substantially and the surface stacking structure became relatively smooth; the proportion of SOF reduced and that of DS increased. Carbon atoms and functional groups on the edge or surface of the carbon layer were first oxidized by the NTP active substance (O3, O) to form CO or CO2, causing carbon atoms to fall off the original bond and new oxygen-containing functional groups to be generated as intermediates. After the NTP reaction, the oxidation characteristic temperatures decreased and high-carbon-atom-number components were transformed into low-carbon-atom-number components. Results reveal that NTP can improve PM oxidizing activity and promote low-temperature combustion of PM; PM decomposition can be regarded as a process of constantly removing carbon atoms.
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影响因子：
5.2
作者：
Tsuyoshi Yamamoto;Kento Yokoo;Akitaka Kusu;J. Tatebayashi
通讯作者：
Tsuyoshi Yamamoto;Kento Yokoo;Akitaka Kusu;J. Tatebayashi
非热等离子体技术柴油机特定物质的微观结构和组分演化机制
影响因子：
6.4
作者：
Wenye Gu;Lili Lei;Yixi Cai;Zhijun Li
通讯作者：
Zhijun Li
DOI：
10.1016/j.envpol.2017.10.096
发表时间：
2018-03
期刊：
Environmental pollution (Barking, Essex : 1987)
影响因子：
--
作者：
Suarez-Bertoa R;Astorga C
通讯作者：
Astorga C
DOI：
10.3390/ijerph15061206
发表时间：
2018-06-08
影响因子：
--
作者：
Hime NJ;Marks GB;Cowie CT
通讯作者：
Cowie CT
影响因子：
7.4
作者：
V. Palma;P. Ciambelli;E. Meloni;A. Sin
通讯作者：
V. Palma;P. Ciambelli;E. Meloni;A. Sin