| 9 | 1/1 | 返回列表 |
| 查看: 4501 | 回復(fù): 8 | ||
me0308至尊木蟲 (著名寫手)
|
[求助]
金屬的晶格常數(shù)在哪里查
|
|
最近看了一篇李亞棟寫的在溶液中制備雙金屬材料的綜述,里面說鈀、鉑、金的晶格常數(shù)分別為3.89埃,3.92埃和4.08。用晶種生長法制備雙金屬納米顆粒的時(shí)候,鉑和鈀形成核殼產(chǎn)物,鉑和金形成異質(zhì)結(jié)構(gòu)物,最后有個結(jié)論就是兩種金屬的晶格常數(shù)相差太大就不能形成核殼結(jié)構(gòu)。按照這種理論,合成金屬核殼納米結(jié)構(gòu)之前就得先找到兩種金屬的晶格常數(shù),但我查了很多地方都找不到金屬的晶格常數(shù)。也就是在正常情況下的那種,不受到各種應(yīng)力。文獻(xiàn)里的那段原文如下: For Pt and Pd, both metals have a face-centered cubic (fcc) phase with a unit length of 3.92 Å and 3.89 Å respectively.Only 0.77% lattice mismatch indicates that the conformal overgrowth of Pd on the Pt nanocubes should be favored. As a result, Pt/Pd bimetallic core/shell cubes were obtained (Figure 8 a). However, the lattice constant of Au (4.08 Å is much larger than that of Pt. The lattice mismatch between Pt and Au is as high as 4.08%, which effectively prevents conformalovergrowth on the Pt nanocubes, instead giving anisotropic overgrowth of Au on Pt seeds. Consequently, Pt/Au bimetallic heterostructures containing Au rods and a single partially embedded Pt cube at the perimeter of each rod were prepared。 |
金蟲 (正式寫手)

至尊木蟲 (著名寫手)

|
本帖內(nèi)容被屏蔽 |
鐵桿木蟲 (正式寫手)
至尊木蟲 (著名寫手)
鐵桿木蟲 (正式寫手)
| 9 | 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] 一志愿吉林大學(xué)材料學(xué)碩321求調(diào)劑 +3 | Ymlll 2026-03-18 | 5/250 |
|
|---|---|---|---|---|
|
[考研] 267一志愿南京工業(yè)大學(xué)0817化工求調(diào)劑 +7 | SUICHILD 2026-03-12 | 7/350 |
|
|
[考研] 材料專業(yè)求調(diào)劑 +3 | hanamiko 2026-03-18 | 3/150 |
|
|
[考研] 286求調(diào)劑 +6 | lemonzzn 2026-03-16 | 9/450 |
|
|
[考研] 344求調(diào)劑 +5 | knight344 2026-03-16 | 6/300 |
|
|
[考研] 0703化學(xué)調(diào)劑 +3 | 妮妮ninicgb 2026-03-17 | 3/150 |
|
|
[考研] 301求調(diào)劑 +4 | A_JiXing 2026-03-16 | 4/200 |
|
|
[考研] 290求調(diào)劑 +3 | p asserby. 2026-03-15 | 4/200 |
|
|
[考博] 26申博 +4 | 八旬速覽 2026-03-16 | 4/200 |
|
|
[考研] 一志愿南京大學(xué),080500材料科學(xué)與工程,調(diào)劑 +4 | Jy? 2026-03-16 | 4/200 |
|
|
[考研] 302求調(diào)劑 +4 | 小賈同學(xué)123 2026-03-15 | 8/400 |
|
|
[考研] 326求調(diào)劑 +4 | 諾貝爾化學(xué)獎覬?/a> 2026-03-15 | 7/350 |
|
|
[考研] 304求調(diào)劑 +4 | ahbd 2026-03-14 | 4/200 |
|
|
[考研] 318求調(diào)劑 +3 | Yanyali 2026-03-15 | 3/150 |
|
|
[考研] 070300化學(xué)學(xué)碩求調(diào)劑 +6 | 太想進(jìn)步了0608 2026-03-16 | 6/300 |
|
|
[考研] 中科院材料273求調(diào)劑 +4 | yzydy 2026-03-15 | 4/200 |
|
|
[考研] 材料與化工求調(diào)劑一志愿 985 總分 295 +8 | dream…… 2026-03-12 | 8/400 |
|
|
[碩博家園] 085600 260分求調(diào)劑 +3 | 天空還下雨么 2026-03-13 | 5/250 |
|
|
[考研] 考研調(diào)劑 +4 | 芬達(dá)46 2026-03-12 | 4/200 |
|
|
[考研] 工科材料085601 279求調(diào)劑 +8 | 困于星晨 2026-03-12 | 10/500 |
|