| ²é¿´: 1647 | »Ø¸´: 5 | |||
| µ±Ç°Ö÷ÌâÒѾ´æµµ¡£ | |||
| µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû | |||
ľÓê×Ó½ð³æ (ÖøÃûдÊÖ)
|
[½»Á÷]
O2-TPD¹ý³Ì
|
||
|
O2-TPD¹ý³ÌÖÐÑõÍѸ½·åµÄ¶àÉÙ¼°Ç¿¶È¡¢ÍѸ½µÄζȸ÷ÄÜ˵Ã÷ʲôÎÊÌâѽ£¿ ÎÒµÚÒ»´ÎÔÚ´Ë·¢Ìù£¬Óв»¶ÔµÄµØ·½Çë¸÷λ°üº¡£ ÏÈлһ¹þ£¡ |
» ²ÂÄãϲ»¶
´óÁ¬¹¤Òµ´óѧÕÐ˶ʿÑо¿Éú
ÒѾÓÐ0È˻ظ´
´óÁ¬¹¤Òµ´óѧÕÐ˶ʿÑо¿Éú
ÒѾÓÐ0È˻ظ´
ÎïÀí»¯Ñ§ÂÛÎÄÈóÉ«/·ÒëÔõôÊÕ·Ñ?
ÒѾÓÐ262È˻ظ´
Êý¶þ Ó¢ÓïÒ»£¬Çóµ÷¼Á£¬±¾¿ÆÑ§Ð£¸£½¨Å©ÁÖ´óѧ
ÒѾÓÐ1È˻ظ´
´óÁ¬¹¤Òµ´óѧÕÐ˶ʿÑо¿Éú
ÒѾÓÐ0È˻ظ´
¹ØÓÚÑо¿Éúµ÷¼ÁµÄЩÐí½¨Òé
ÒѾÓÐ1È˻ظ´
ÁÉÄþ£º´óÁ¬¹¤Òµ´óѧ£¬ÎÄ×ÖΪµ¼Ê¦ÏêϸÐÅÏ¢£¬Í¼Æ¬ÎªÍŶӽéÉÜ£¬»¶Ó±¨Ãû
ÒѾÓÐ0È˻ظ´
Î人ÇṤ´óѧ»¯»·Ñ§ÔºÕÐÊÕµ÷¼Á
ÒѾÓÐ6È˻ظ´
Î人ÇṤ´óѧ»¯»·Ñ§ÔºÕе÷¼Á
ÒѾÓÐ0È˻ظ´
ËÜÁÏÓÍ·ÖÎö²âÊÔ
ÒѾÓÐ1È˻ظ´

ElectroWang
ͳæ (СÓÐÃûÆø)
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ½ð±Ò: 610.4
- É¢½ð: 6
- ºì»¨: 1
- Ìû×Ó: 156
- ÔÚÏß: 64.1Сʱ
- ³æºÅ: 307253
- ×¢²á: 2006-12-16
- רҵ: ³£Î¢·Ö·½³ÌÓ붯Á¦ÏµÍ³
|
Chemisorption is a type of adsorption whereby a molecule adheres to a surface through the formation of a chemical bond, as opposed to the Van der Waals forces which cause physisorption. It is characterised by: High temperatures. Type of interaction: strong; covalent bond between adsorbate and surface. High enthalpy: 50 kJ/mol <¦¤H< 800 kJ/mol Adsorption takes place only in a monolayer. High activation energy Increase in electron density in the adsorbent-adsorbate interface. Reversible only at high temperature. |
4Â¥2008-04-12 17:12:14
kmlws
Òø³æ (ÕýʽдÊÖ)
- Ó¦Öú: 1 (Ó×¶ùÔ°)
- ½ð±Ò: 457.8
- É¢½ð: 71
- ºì»¨: 1
- Ìû×Ó: 836
- ÔÚÏß: 97.1Сʱ
- ³æºÅ: 458782
- ×¢²á: 2007-11-13
- רҵ: ÎÛȾ¿ØÖÆ»¯Ñ§
¡ï
nxl5096224(½ð±Ò+1,VIP+0):¶àл¹Ø×¢°¡£¡
nxl5096224(½ð±Ò+1,VIP+0):¶àл¹Ø×¢°¡£¡
| Ç¿¶È¶àÉÙ´ú±íÎü¸½ÑõµÄÄÜÁ¦,ζȴú±íÎü¸½ÑõÓëËù²âÎïÖʽáºÏµÄÇ¿¶È, |
2Â¥2008-04-12 08:54:04
liu5288kangkai
ľ³æ (ÖøÃûдÊÖ)
åÐÒ£ÈÌÕß
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ¹ó±ö: 0.15
- ½ð±Ò: 1833.8
- ºì»¨: 3
- Ìû×Ó: 1521
- ÔÚÏß: 71.6Сʱ
- ³æºÅ: 276474
- ×¢²á: 2006-09-02
- ÐÔ±ð: GG
- רҵ: ×ÊÔ´»¯¹¤
¡ï
yutian.35(½ð±Ò+1,VIP+0):¸Ðл²ÎÓë°¡
yutian.35(½ð±Ò+1,VIP+0):¸Ðл²ÎÓë°¡
| Ò»°ãÎü¸½¶¼Óл¯Ñ§Îü¸½ºÍÎïÀíÎü¸½Á½²¿·Ö£¬µÍÎÂÒ»°ã³öµÄÊÇÎïÀíÎü¸½²¿·Ö£¬¸ßÎÂÍѸºÊÇ»¯Ñ§Îü¸½²¿·Ö¡£·åÇ¿¼°·åÃæ»ý´ú±íÎü¸½Á¿µÄ¶àÉÙ£¬Îü¸½Î¶ȴú±íÎü¸½¼ÁÓëÎü¸½ÖÊ×÷ÓõÄÇ¿Èõ£¬Ç¿µÄÔÚ¸ßΣ¬ÈôµÄÔÚµÍβ¿·Ö¡£ |
3Â¥2008-04-12 11:38:23
ElectroWang
ͳæ (СÓÐÃûÆø)
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ½ð±Ò: 610.4
- É¢½ð: 6
- ºì»¨: 1
- Ìû×Ó: 156
- ÔÚÏß: 64.1Сʱ
- ³æºÅ: 307253
- ×¢²á: 2006-12-16
- רҵ: ³£Î¢·Ö·½³ÌÓ붯Á¦ÏµÍ³
|
Physisorption[1] or physical adsorption is a type of adsorption in which the adsorbate adheres to the surface only through Van der Waals (weak intermolecular) interactions, which are also responsible for the non-ideal behaviour of real gases. It is characterised by:[2] Low ambient temperature, always under the critical temperature of the adsorbate; Type of interaction: Intermolecular forces (van der Waals forces); Low enthalpy: ¦¤H < 20 kJ/mol; Adsorption takes place in multilayers; Low activation energy. The energy state of adsorbate is not altered. Reversible. |
5Â¥2008-04-12 17:12:25














»Ø¸´´ËÂ¥