| 24小時(shí)熱門版塊排行榜 |
| 5 | 1/1 | 返回列表 |
| 查看: 2345 | 回復(fù): 11 | ||
| 當(dāng)前只顯示滿足指定條件的回帖,點(diǎn)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(wèn)題是:每次拿出來(lái)轉(zhuǎn)到離心管里還分散性好,但離心下來(lái)就團(tuán)聚了,分也分不開(kāi),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(wèn)做過(guò)的XDJM們?cè)趺椿厥掳。磕銈兌荚趺床僮鞯,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] 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] 化學(xué)0703 調(diào)劑 306分 一志愿211 +7 | 26要上岸 2026-03-28 | 7/350 |
|
|
[考研] 0703化學(xué) +11 | 妮妮ninicgb 2026-03-27 | 11/550 |
|
|
[考研] 329求調(diào)劑 +7 | 星野? 2026-03-26 | 7/350 |
|
|
[考研] 317求調(diào)劑 +6 | 十閑wx 2026-03-24 | 6/300 |
|
|
[考研] 0703一志愿9,初試成績(jī):338,四六級(jí)已過(guò),有科研經(jīng)歷,求調(diào)劑! +4 | Zuhui0306 2026-03-25 | 4/200 |
|
|
[考研] 一志愿211院校 344分 東北農(nóng)業(yè)大學(xué)生物學(xué)學(xué)碩,求調(diào)劑 +5 | 丶風(fēng)雪夜歸人丶 2026-03-26 | 8/400 |
|
|
[考研] 一志愿上海理工能源動(dòng)力(085800)310分求調(diào)劑 +3 | zhangmingc 2026-03-27 | 4/200 |
|
|
[考研] 272求調(diào)劑 +7 | 腳滑的守法公民 2026-03-27 | 7/350 |
|
|
[考研] 材料292調(diào)劑 +12 | 橘頌思美人 2026-03-23 | 12/600 |
|
|
[考研] 308求調(diào)劑 +7 | 墨墨漠 2026-03-25 | 7/350 |
|
|
[考研] 348求調(diào)劑 +4 | 小懶蟲不懶了 2026-03-27 | 5/250 |
|
|
[考研] 316求調(diào)劑 +5 | Pigcasso 2026-03-24 | 5/250 |
|
|
[論文投稿] Journal of Mechanical Science and Technology +3 | Russ_ss 2026-03-25 | 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] 材料與化工304求B區(qū)調(diào)劑 +3 | 邱gl 2026-03-26 | 6/300 |
|
|
[考研] 07化學(xué)303求調(diào)劑 +5 | 睿08 2026-03-25 | 5/250 |
|
|
[考研] 考研一志愿蘇州大學(xué)初始315(英一)求調(diào)劑 +3 | sbdksD 2026-03-24 | 4/200 |
|
|
[考研] 求b區(qū)院校調(diào)劑 +4 | 周56 2026-03-24 | 5/250 |
|
|
[考研] 上海電力大學(xué)材料防護(hù)與新材料重點(diǎn)實(shí)驗(yàn)室招收調(diào)劑研究生(材料、化學(xué)、電化學(xué),環(huán)境) +4 | 我愛(ài)學(xué)電池 2026-03-23 | 4/200 |
|