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ǰÈý¾ä¶¼²î²»¶à¡£ÏÂÃæµÄÓ¢ÎÄÊÇÎÒ·­ÒëµÄ£¬±à¼­ËµÓÐÎÊÌâµÄ£¬ÇëÇó¸ù¾ÝººÓïÒâ˼Ð޸ġ£1.½á¹ûÏÔʾ700¶ÈìÑÉÕºóµÄÑõ»¯Ð¿¿ÅÁ£ÍžÛÐγɷ䳲״½á¹¹µÄÀàÇòÌå¡£Òâ˼²î²»¶à¾ÍÐС£The results showed that the as-prepared ZnO calcined at 700¡æ were micron sphere particles with honeycomb-like structure.
2.ͼÖÐÕâ¸ö·ä³²×´Ñõ»¯Ð¿ÍžÛÌå±íÃæÓкܶàµÄ²»¹æÔò¿Õ¶´ºÍ±íÃæÈ±ÏÝ£¬ÍžÛÌåºÜÏñÒ»¸öÕæÕýµÄ·ä³²¡£shows a typical honeycomb-like ZnO conglomeration is a porous micron sphere with a variety of irregular pores and surface defects, which is analogous to real honeycomb.
3.»¹ÊÇÕâ¾ä»°¡£¼ÓÉÏ·ä³²ÖеĿ׵ijߴçÊÇ´Ó¼¸Ê®µ½¼¸°ÙÄÉÃ×Õâ¸öÒâ˼¡£XRD, EDS, and SEM showed that the as-prepared ZnO calcined at 700¡æ were micron sphere particles with honeycomb-like structure and the diameters of honeycomb pores ranged from tens to hundreds nanometers.
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4. different-shaped ZnO structures ¡°¸÷ÖÖ²»Í¬½á¹¹µÄÑõ»¯Ð¿¡±µÄ±í´ï
5. The four gases, include H2S gas, methane, carbon monoxide and hydrogen, whose concentration are all 50 ppm, were selected as detecting gases.
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[ Last edited by chuanhit on 2007-12-19 at 11:22 ]

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1.Results indicate that the zinc oxide particles after calcination at 700 degrees Celsius agglomerate and form a spheroid with honeycomb structure.

2. There're lots of irregular cavities and surface defects on the surface of the honeycomb aggregate which looks like a real honeycomb with the hole dimensions from several decades to hundreds nanometers

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4¡£Zinc oxides of different structures

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4Â¥2007-12-19 12:58:42
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