中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Selective catalytic reduction of NOx with C3H6 over an Ag/Al2O3 catalyst with a small quantity of noble metal

文献类型:期刊论文

作者Wang, J; He, H; Feng, QC; Yu, YB; Yoshida, K
刊名CATALYSIS TODAY
出版日期2004
卷号1993-05-01期号:1页码:783-789
关键词Ag-Pd/Al2O3 Ag-Pt/Al2O3 Ag-Au/Al2O3 enolic species in situ DRIFTS catalytic reaction mechanism
英文摘要An one-year of sampling aerosol program was carried out during the period of April 1995 to April 1996 at coastal region, Cape D'Aguilar, in Hong Kong. The trace element composition of aerosol particles(TSP and PM10) were measured and analyzed by using the Instrumental Neutron Activation Analysis(INAA) and Inductive Couple Plasma-Mass Spectrometry(ICP-MS) techniques. The results showed that the polluted elements such as: V, Zn, As, Pb, Cd, Sb, I, Se, Bi, with high enrichment factor(E.F) values, are derived from anthropogenic sources, while Sc, Al, Fe, Mn, Sm, La, Sr are less than 10 in E.F, these elements are related the crust and soil. The concentration of the trace elements are present seasonal variation i.e. summer low and winter high, whereas the V or noncrustal V(V*) present summer high and winter low, this phenomenon might be explained by local or regional oil combustion sources. Use three type of elemental ratio, e.g. La/Sm, Mn*/V* and Bi/Al indicate that both TSP and PM, of La/Sm ratios are mainly related to soil and dust, Mn*/V* are probably represent fossil combustion and Bi/Al are possibly associated with refuse incineration, ferromanganese alloys and aluminum production. The varimax rotation factor analysis for trace elements was performed. By means of the absolute principal component analysis (APCA) and multiple regression, the contribution of trace elements to possible sources and overall means of trace elements were estimated. The results showed that the present station is impacted by the anthropogenic species, although the quantities are different during the summertime and wintertime.
研究领域[WOS]Environmental Sciences & Ecology
公开日期2015-12-24
源URL[http://ir.rcees.ac.cn/handle/311016/23416]  
专题生态环境研究中心_大气环境科学实验室
推荐引用方式
GB/T 7714
Wang, J,He, H,Feng, QC,et al. Selective catalytic reduction of NOx with C3H6 over an Ag/Al2O3 catalyst with a small quantity of noble metal[J]. CATALYSIS TODAY,2004,1993-05-01(1):783-789.
APA Wang, J,He, H,Feng, QC,Yu, YB,&Yoshida, K.(2004).Selective catalytic reduction of NOx with C3H6 over an Ag/Al2O3 catalyst with a small quantity of noble metal.CATALYSIS TODAY,1993-05-01(1),783-789.
MLA Wang, J,et al."Selective catalytic reduction of NOx with C3H6 over an Ag/Al2O3 catalyst with a small quantity of noble metal".CATALYSIS TODAY 1993-05-01.1(2004):783-789.

入库方式: OAI收割

来源:生态环境研究中心

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。