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valenhou001
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zzy870720z(½ð±Ò+1): лл½¨Òé 2011-06-24 12:04:53
gzqdyouxia(½ð±Ò+1): ллÌáʾ 2011-06-24 13:07:29
zzy870720z(½ð±Ò+1): лл½¨Òé 2011-06-24 12:04:53
gzqdyouxia(½ð±Ò+1): ллÌáʾ 2011-06-24 13:07:29
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12Â¥2011-06-23 18:47:50
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zzy870720z(½ð±Ò+1): ллָ½Ì 2011-06-22 10:07:08
zzy870720z(½ð±Ò+1): ллָ½Ì 2011-06-22 10:07:08
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2Â¥2011-06-22 09:21:11
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0506nan(½ð±Ò+10): ·Ç³£¸ÐлÕâλGGµÄÈÈÇé°ïÖú\(^o^)/~ 2011-06-22 15:44:53
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0506nan(½ð±Ò+10): ·Ç³£¸ÐлÕâλGGµÄÈÈÇé°ïÖú\(^o^)/~ 2011-06-22 15:44:53
ellsaking(½ð±Ò+2): ¸Ðл°ïÖú 2011-06-22 16:03:06
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ÕâÀïÖ»ÊǼÓÁËÒ»¸ö¶àÓàµÄµç×Ó£¬²¢Ã»ÓпÕѨµÄÒýÈëÏÂÃæÕâ¶Î»°¿ÉÒÔÃ÷ÏԵĿ´³öÀ´ TABLE 2: Calculated Adsorption Energies (in eV) of CO2 on Neutral Anatase (101) Surface Using Cluster and Periodic Models and on Negatively Charged Anatase (101) Surfaces Using the Cluster Model (I) and the Periodic Model (II) and H Reduced Anatase (101) Surface Using the Periodic Model (III) c |

7Â¥2011-06-22 13:59:43
valenhou001
ÖÁ×ðľ³æ (Ö°Òµ×÷¼Ò)
- 1STÇ¿Ìû: 13
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zzy870720z(½ð±Ò+2): ллָ½Ì 2011-06-24 12:04:43
zzy870720z(½ð±Ò+2): ллָ½Ì 2011-06-24 12:04:43
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"positive background charge"Õâ¸öÊdzÌÐò×Ô¶¯¼ÓÉϵģ¬ÒÔ²¹³¥ÌåϵËù´øµÄµçºÉ¡£ |
10Â¥2011-06-23 18:44:32
0506nan
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×÷Õ߻ظ´£ºÈýÖÖÄ£Ð͵Ľ¨Á¢¡£ A positive background charge is added automatically by VASP code if the number of electrons in the system is larger than total charge of atomic cores (see NELECT in the VASP manual) : http://cms.mpi.univie.ac.at/vasp/vasp/Index.html Model I is a cluster model, and extra electron does not need compensation (complete screening), model III has an extra proton which compensates the negative charge. Please keep in mind that these models are designed to study an extra electron, therefore the goal of introducing hole models is to see how their electrostatic potential influences this extra electron. |

13Â¥2011-07-06 15:59:49
0506nan
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3Â¥2011-06-22 09:43:36
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4Â¥2011-06-22 10:09:06
0506nan
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Ä£ÐÍ1ÓõÄgaussian03£¬Ä£ÐÍ2ºÍÄ£ÐÍ3ÓõÄVASP¡£ To account for the presence of an electron from photoexcitation, either an extra electron with a positive compensating background (model II) or one hydrogen atom adsorbed on the surface bridging O atom (model III) is introduced to populate the TiO2 conduction band. In the latter case, the electron from the hydrogen atom redistributes to the bottom of CB of TiO2 within self-consistent calculations leaving behind a proton mimicking a localized hole in terms of its Coulomb potential as long as it does not participate in reactions. In contrast, we consider the positive charge to be completely screened in our cluster calculations. |

5Â¥2011-06-22 10:22:19
0506nan
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6Â¥2011-06-22 10:42:35
dgcrcat
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youzhizhe(½ð±Ò+1): лл½»Á÷¡£ÄãÃÇ¿ÉÒÔÕ¾ÄÚÁªÏµ¡£ 2011-06-23 14:42:26
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8Â¥2011-06-23 10:56:35
0506nan
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9Â¥2011-06-23 11:07:58














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