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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. ÎÒÖÊÒɵÄÁ½µã£º 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. ¾ÍÑ¡ÕâËÄÖÖÆøÌ廹ÐèÒªincludeÕâ¸ö´ÊÂð ׿±Óã¬Ð»Ð»´ó¼Ò£¬ [ Last edited by chuanhit on 2007-12-19 at 11:22 ] |
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2Â¥2007-12-19 10:13:35
chuanhit
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3Â¥2007-12-19 10:17:59
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chuanhit(½ð±Ò+5,VIP+0):Õâô¶àÎÊÌ⣬ллÄãµÄÄÍÐĺÍÏ꾡»Ø´ð
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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 3.·Åµ½2ÖеĴӾäÖÐÁË¡£ 4¡£Zinc oxides of different structures 5.ÓÃincluding×÷¶¨Óï ²»ÖªµÀ°³·ÒëµÃÈçºÎ£¬ÇëÖ¸½Ì¡£ |
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