| 3 | 1/1 | 返回列表 |
| 查看: 474 | 回復: 2 | ||
316124148鐵蟲 (小有名氣)
|
[求助]
求助Pd二十面體的分散度計算方法
|
|
大家好!以下是我計算Pd二十面體分散度的方法。請大家檢查下是否對不;蛘哂衅渌嬎惴椒ㄕ埓蠹叶喽嘀附。謝謝啦。 Calculation dispersion of Pd icosahedron The Pd icosahedron sample has an average edge length of 14.5 nm. Its volume is: (15+5×adical sign(5)) /12 ×(14.5 nm)3 = 6651.17 nm3 Pd has the face-centered-cubic structure with a lattice constant of 0.389 nm. The volume of a unit cell is : (0.389 nm)3 = 0.0589 nm3, Each unit cell contains 4 Pd atoms. The number of Pd atoms in a single Pd icosahedron is: (6651.17 nm3) / (0.0589 nm3) ×4 = 451692, Its total surface area is: (14.5 nm)2 ×( 5 adical sign(3))= 1820.8 nm2, Each two-dimensional unit cell on the (111) facet contains two Pd atoms. Its area is (0.389 nm)2 = 0.151 nm2 The number of the surface Pd atoms on a single Pd icosahedron is: 1820.8 nm2/(0.151 nm2) × 2 = 24117 The dispersion of a single Pd icosahedron is: 24117/451692 = 0.05 主要有疑問的地方就是上面標下劃線的地方。不知道這樣算對不?謝謝大家咯。 |

木蟲 (正式寫手)
新蟲 (初入文壇)
| 3 | 1/1 | 返回列表 |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 288求調劑 +15 | 于海海海海 2026-03-19 | 15/750 |
|
|---|---|---|---|---|
|
[考研] 0703化學調劑 +9 | 妮妮ninicgb 2026-03-15 | 13/650 |
|
|
[考研] 0703化學調劑 +5 | pupcoco 2026-03-17 | 8/400 |
|
|
[考研] 328求調劑,英語六級551,有科研經歷 +4 | 生物工程調劑 2026-03-16 | 12/600 |
|
|
[考研] 332求調劑 +3 | ydfyh 2026-03-17 | 3/150 |
|
|
[考研] 354求調劑 +4 | Tyoumou 2026-03-18 | 7/350 |
|
|
[考研] 328求調劑,英語六級551,有科研經歷 +3 | 生物工程調劑 2026-03-17 | 7/350 |
|
|
[考研] 344求調劑 +6 | knight344 2026-03-16 | 7/350 |
|
|
[考研] 化學工程321分求調劑 +15 | 大米飯! 2026-03-15 | 18/900 |
|
|
[考研] 302求調劑 +10 | 呼呼呼。。。。 2026-03-17 | 10/500 |
|
|
[考研] 280求調劑 +6 | 咕嚕曉曉 2026-03-18 | 7/350 |
|
|
[考研] 0703化學求調劑 總分331 +3 | ZY-05 2026-03-13 | 3/150 |
|
|
[考研] 工科材料085601 279求調劑 +6 | 困于星晨 2026-03-17 | 6/300 |
|
|
[考研] 301求調劑 +9 | yy要上岸呀 2026-03-17 | 9/450 |
|
|
[考研] 332求調劑 +6 | Zz版 2026-03-13 | 6/300 |
|
|
[考研] 0703一志愿211 285分求調劑 +5 | ly3471z 2026-03-13 | 5/250 |
|
|
[考研] 0703 物理化學調劑 +3 | 我可以上岸的對?/a> 2026-03-13 | 5/250 |
|
|
[考研] 26考研一志愿中國石油大學(華東)305分求調劑 +3 | 嘉年新程 2026-03-15 | 3/150 |
|
|
[考研] 297求調劑 +4 | 學海漂泊 2026-03-13 | 4/200 |
|
|
[考研] 0856材料與化工301求調劑 +5 | 奕束光 2026-03-13 | 5/250 |
|