China Particuology最新文献_第4页

Dispersion behavior of core–shell silica-polymer nanoparticles 核-壳硅-聚合物纳米颗粒的分散行为

China Particuology Pub Date : 2007-08-01 DOI: 10.1016/j.cpart.2007.04.004

Yi Wang, Yangchuan Ke, Jingzi Li, Shouqin Du, Yanfeng Xia

引用次数: 15

Numerical modeling of gas-phase kinetics in formation of secondary aerosol 二次气溶胶形成气相动力学的数值模拟

China Particuology Pub Date : 2007-08-01 DOI: 10.1016/j.cpart.2007.05.002

Wang-Kun Chen , Ping Wang

引用次数: 2

Bubble dynamics in a two-dimensional gas–solid fluidized bed 二维气固流化床中的气泡动力学

China Particuology Pub Date : 2007-08-01 DOI: 10.1016/j.cpart.2007.04.002

Ruoyu Hong , Zhiqiang Ren, Jianmin Ding , M. Kawaji , Hongzhong Li

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引用次数: 7

Characteristics of elemental carbon and organic carbon in PM10 during spring and autumn in Chongqing, China 重庆地区春秋季PM10中元素碳和有机碳特征

China Particuology Pub Date : 2007-08-01 DOI: 10.1016/j.cpart.2007.03.009

Di Ye, Qi Zhao, Changtan Jiang, Jun Chen, Xiaoxing Meng

{"title":"Characteristics of elemental carbon and organic carbon in PM10 during spring and autumn in Chongqing, China","authors":"Di Ye, Qi Zhao, Changtan Jiang, Jun Chen, Xiaoxing Meng","doi":"10.1016/j.cpart.2007.03.009","DOIUrl":"10.1016/j.cpart.2007.03.009","url":null,"abstract":"<div>PM10 (particulate matter with aerodynamic diameter less than 10μm) samples were collected simultaneously at nine urban sites and one urban background site during two intensive observation campaigns in 2006. Concentrations of elemental carbon (EC) and organic carbon (OC) in PM10 were analyzed using an element analyzer. The characteristics regarding spatial and seasonal distribution patterns of OC and EC concentrations and their contributions to PM10 mass, as well as correlation between OC and EC, were investigated in detail. The average OC and EC concentrations for urban sites were 57.5±20.8 and 8.3±3.9μg/m3, respectively, both being around three times higher than those for urban background site. As a whole, EC concentrations did not show distinct seasonal variations, though OC concentrations were generally higher in autumn than in spring. For urban sites, total carbonaceous aerosol (TCA) accounted for 33.2% in spring and 35.0% in autumn of PM10 mass. The OC and EC concentrations were found significantly correlated to each other both in spring and in autumn, implying the existence of similar emission sources such as coal combustion. The OC/EC ratios generally exceeded 2.0, indicating the presence of secondary organic carbon (SOC), whose estimated concentration for urban Chongqing was 26.7 and 39.4μg/m3, accounting for 48.9 and 61.9% of the total OC observed in the samples, in spring and in autumn, respectively.</div>","PeriodicalId":100239,"journal":{"name":"China Particuology","volume":"5 4","pages":"Pages 255-260"},"PeriodicalIF":0.0,"publicationDate":"2007-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.cpart.2007.03.009","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87466726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 17

Effect of process conditions on the synthesis of carbon nanotubes by catalytic decomposition of methane 工艺条件对甲烷催化分解合成碳纳米管的影响

China Particuology Pub Date : 2007-06-01 DOI: 10.1016/j.cpart.2007.03.004

Shuanglin Zhan , Yajun Tian , Yanbin Cui , Hao Wu , Yonggang Wang , Shufeng Ye , Yunfa Chen

引用次数: 31

Nanohybrid TiO2/carbon black sensor for NO2 gas 二氧化钛/炭黑纳米杂化传感器用于NO2气体

China Particuology Pub Date : 2007-06-01 DOI: 10.1016/J.CPART.2007.03.005

W. Liou, Hong‐Ming Lin