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Present Status and Future Trends on Urban Greening at Special Sites
Huinan Fu,hongye Huan Korean Institute of Landscape Architecture 2004 Journal of the Korean institute of landscape archi Vol.2 No.-
This paper discussed the use of the urban greening space beside nature land----special sites of urban Greening. Consider: the special sites of urban greening are referred to the space formed by urban building and framing, where plants can grow under natural or artificial condition. Filly using those spaces will efficiently increase green area, improving ecological environment and landscape in urban area. A classification to special sites of urban greening was put forward, which are the habits of plant combine with the form of buildings. The present status and future trends on urban greening at special sites was discussed and analyzed. Consider: there are two developing trends of the research of urban greening at special sites. Firstly, it is more naturalize and ecologize greening landscape. Secondly, It will take form a techologize in the process of constructing and materials.
The effect of interaction between La2AlCoO6 and CuCl2 on ethane oxychlorination
Lirong Yang,Ruisheng Hu,Huan Li,Yun Jia,Qihua Zhou,Hongye Wang 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.56 No.-
Supported perovskite-type catalyst La2AlCoO6–CuCl2–g-Al2O3 was synthesized by impregnation–sol– gel–mechanical-mixing methods and characterized by means of XRD, BET, H2-TPR, XPS, O2-TPD and TGDSC techniques. It is found that there is a strong interaction between La2AlCoO6 and CuCl2. The catalyst La2AlCoO6–CuCl2–g-Al2O3 reduces the reduction activation energy of Cu2+! Cu+ and increases the amount of surface adsorbed oxygen species, which are advantageous to the transition of redox group Cu2 +/Cu+, therefore promote the catalytic performance. The catalyst La2AlCoO6–CuCl2–g-Al2O3 shows a superior catalytic activity for ethane oxychlorination with the C2H6 conversion of 100% and the C2H3Cl selectivity to 43.8%.