| 5 | 1/1 | 返回列表 |
| 查看: 2348 | 回復(fù): 11 | ||
| 當(dāng)前只顯示滿足指定條件的回帖,點擊這里查看本話題的所有回帖 | ||
[求助]
兩相法合成3nm左右金顆粒
|
||
|
最近合成3nm左右 Au顆粒,用的是兩相法,參考文獻(xiàn)如下: Synthesis of Au nanoparticles. Typically, 20 ml of 5 mM HAuCl4 aqueous solution was mixed with 10 ml of 25 mM TOAB in toluene. After the Au precursor was transferred to the toluene layer, the toluene layer was mixed with 0.202 g dodecylamine in 5ml toluene. Then, 0.054 g NaBH4 in 3 ml H2O was added to the mixture with vigorous stirring. The mixture turned brown indicating the formation of Au nanoparticles. Au nanoparticles were precipitated from toluene by adding ethanol followed by centrifugation. The nanoparticles were redispersed in 10 ml hexane. For this particular procedure, the Au nanoparticles were about 3 nm in diameter, with nearly spherical shape. Nano Lett., 2006, 6 (4), pp 875–881 問題是:每次拿出來轉(zhuǎn)到離心管里還分散性好,但離心下來就團(tuán)聚了,分也分不開,我已經(jīng)注意控制轉(zhuǎn)速了。而且即使加硫醇超聲也分散不了了。 這種兩相法合成應(yīng)該很成熟了啊, 求問做過的XDJM們怎么回事?你們都怎么操作的,還是文獻(xiàn)中把有些關(guān)鍵性步驟省略掉了???? 要奔潰了 |
|
本帖內(nèi)容被屏蔽 |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 070300化學(xué)279求調(diào)劑 +5 | 哈哈哈^_^ 2026-03-31 | 7/350 |
|
|---|---|---|---|---|
|
[考研] 一志愿食品科學(xué)與工程083200求調(diào)劑 +4 | XQTJZ 2026-03-30 | 4/200 |
|
|
[考研] 材料科學(xué)與工程求調(diào)劑 +10 | 深V宿舍吧 2026-03-29 | 10/500 |
|
|
[考研] 理學(xué)07化學(xué) 303求調(diào)劑 +4 | 睿08 2026-03-27 | 4/200 |
|
|
[考研] 085600 295分求調(diào)劑 +7 | W55j 2026-03-30 | 9/450 |
|
|
[考研] 322求調(diào)劑 +10 | 宋明欣 2026-03-27 | 10/500 |
|
|
[考研] 297求調(diào)劑 +17 | 田洪有 2026-03-26 | 18/900 |
|
|
[考研] 332求調(diào)劑 +6 | @MZB382400 2026-03-28 | 6/300 |
|
|
[考研] 318求調(diào)劑 +7 | 陳晨79 2026-03-30 | 7/350 |
|
|
[考研] 282求調(diào)劑 +4 | wcq131415 2026-03-24 | 4/200 |
|
|
[考研] 一志愿南航 335分 | 0856 | GPA 4.07 | 有科研經(jīng)歷 +8 | cccchenso 2026-03-29 | 8/400 |
|
|
[考研] 275求調(diào)劑 +15 | Micky11223 2026-03-25 | 20/1000 |
|
|
[考研] 321求調(diào)劑 +7 | 璞玉~~ 2026-03-25 | 8/400 |
|
|
[考研] 復(fù)試調(diào)劑,一志愿南農(nóng)083200食品科學(xué)與工程 +5 | XQTJZ 2026-03-26 | 5/250 |
|
|
[考研] 求調(diào)劑 +3 | 劉柯@ 2026-03-24 | 4/200 |
|
|
[考研] 315調(diào)劑 +4 | 0860求調(diào)劑 2026-03-26 | 5/250 |
|
|
[考研] 0703化學(xué)一志愿南京師范大學(xué)303求調(diào)劑 +3 | zzffylgg 2026-03-24 | 3/150 |
|
|
[考研] 081200-11408-276學(xué)碩求調(diào)劑 +4 | 崔wj 2026-03-26 | 4/200 |
|
|
[考研] 341求調(diào)劑 +7 | 青檸檬1 2026-03-26 | 7/350 |
|
|
[考研] 085601求調(diào)劑總分293英一數(shù)二 +4 | 鋼鐵大炮 2026-03-24 | 4/200 |
|