| 5 | 1/1 | 返回列表 |
| 查看: 1244 | 回復(fù): 4 | |||
秦時(shí)明月zy銀蟲 (正式寫手)
|
[交流]
關(guān)于小尺寸金納米棒(sAuNRs)的制備 已有2人參與
|
|
想請(qǐng)教各位蟲友關(guān)于小尺寸金納米棒(sAuNRs)合成的問題。 我目前在制備sAuNRs,使用的方法為2016年發(fā)表在Biomaterials上的one-pot-seedless method。 在制備過程中,加入油酸鈉(NaOL)后,溶液會(huì)由橙黃色逐漸變?yōu)闊o色,請(qǐng)問這是什么原因?是與氯金酸反應(yīng)了嗎?謝謝各位蟲友。 附文獻(xiàn)中的步驟:The sAuNRs were synthesized by a one-pot seedless technique.1 mL of 5 mM HAuCl4, 5 mL of 0.2 M CTAB, and 4.5 mL of ultrapure water were mixed in a 50 mL glass beaker and then 500 mL of 0.1M NaOL and 250 mL of 4mM AgNO3 were added undergentle stirring. Afterwards, 8 mL of concentrated HCl (36%-38%) were injected, followed by addition of 56 mL of 0.1 M ascorbic acidunder slight swirling until the solution changed from dark orange to colorless. 15 mL of freshly prepared ice-cold 10 mM of NaBH4were added rapidly. The solution was gently mixed for 10 s and left undisturbed for 3 h in an incubator at 35 C. The nanorod solutionwas centrifuged at 16,000 rpm for 15 min to stop the reaction. 發(fā)自小木蟲Android客戶端 |
銀蟲 (正式寫手)
|
嗯嗯,謝謝您的回復(fù)。 但是文獻(xiàn)步驟中后續(xù)提到“?followed by addition of 56 mL of 0.1 M ascorbic acidunder slight swirling until the solution changed from dark orange to colorless”。 應(yīng)該是使用抗壞血酸還原三價(jià)金為一價(jià)金,而產(chǎn)生顏色變化。 加入油酸鈉后變色,實(shí)驗(yàn)現(xiàn)象與文獻(xiàn)描述不符合。 希望您能不吝賜教。 發(fā)自小木蟲Android客戶端 |
銀蟲 (正式寫手)
| 5 | 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] 一志愿西安交通大學(xué)材料工程專業(yè) 282分求調(diào)劑 +5 | 楓橋ZL 2026-03-18 | 5/250 |
|
|---|---|---|---|---|
|
[考研] 0703化學(xué) 305求調(diào)劑 +4 | FY_yy 2026-03-14 | 4/200 |
|
|
[考研] 材料專業(yè)求調(diào)劑 +5 | hanamiko 2026-03-18 | 5/250 |
|
|
[考研] 08工科 320總分 求調(diào)劑 +5 | 梨花珞晚風(fēng) 2026-03-17 | 5/250 |
|
|
[考研] 0854可跨調(diào)劑,一作一項(xiàng)核心論文五項(xiàng)專利,省、國級(jí)證書40+數(shù)一英一287 +8 | 小李0854 2026-03-16 | 8/400 |
|
|
[基金申請(qǐng)] 被我言中:新模板不強(qiáng)調(diào)格式了,假專家開始管格式了 +4 | beefly 2026-03-14 | 4/200 |
|
|
[考研] 268求調(diào)劑 +7 | 好運(yùn)連綿不絕 2026-03-12 | 8/400 |
|
|
[考研] 085601求調(diào)劑 +4 | Du.11 2026-03-16 | 4/200 |
|
|
[考研] 一志愿蘇州大學(xué)材料工程(085601)專碩有科研經(jīng)歷三項(xiàng)國獎(jiǎng)兩個(gè)實(shí)用型專利一項(xiàng)省級(jí)立項(xiàng) +6 | 大火山小火山 2026-03-16 | 8/400 |
|
|
[考研] 材料工程專碩274一志愿211求調(diào)劑 +6 | 薛云鵬 2026-03-15 | 6/300 |
|
|
[考研] 275求調(diào)劑 +4 | 太陽花天天開心 2026-03-16 | 4/200 |
|
|
[考研] 中科院材料273求調(diào)劑 +4 | yzydy 2026-03-15 | 4/200 |
|
|
[考研] 085600調(diào)劑 +5 | 漾漾123sun 2026-03-12 | 6/300 |
|
|
[考研] 085600材料與化工 求調(diào)劑 +13 | enenenhui 2026-03-13 | 14/700 |
|
|
[考研] 求老師收留調(diào)劑 +4 | jiang姜66 2026-03-14 | 5/250 |
|
|
[考研] 中科大材料與化工319求調(diào)劑 +3 | 孟鑫材料 2026-03-14 | 3/150 |
|
|
[考研] 0856材料與化工301求調(diào)劑 +5 | 奕束光 2026-03-13 | 5/250 |
|
|
[考研] 289求調(diào)劑 +3 | 李政瑩 2026-03-12 | 3/150 |
|
|
[考研] 070303一志愿西北大學(xué)學(xué)碩310找調(diào)劑 +3 | d如愿上岸 2026-03-13 | 3/150 |
|
|
[考研] 333求調(diào)劑 +3 | 152697 2026-03-12 | 4/200 |
|