| 9 | 1/1 | 返回列表 |
| 查看: 1968 | 回復(fù): 8 | |||
洪娃子新蟲 (小有名氣)
|
[求助]
關(guān)于用夏幼男方法制備銅納米線 已有3人參與
|
| 新搭建了雙排管,用夏幼男方法制備銅納米線,反應(yīng)物為二水氯化銅,還原劑為葡萄糖,封端劑為十六胺,溶劑為水。反應(yīng)物放在樣品袋里,用水泵抽真空時(shí),真空度可以達(dá)到-0.095MPa,但是有大量的氣泡產(chǎn)生,抽很久真空都抽不掉。加熱到100度反應(yīng),溶液是黃綠色的,離心沉淀下來,沉淀還是淺藍(lán)色的。我現(xiàn)在懷疑是不是葡萄糖失效了,或者是水的問題,求各位大神可以幫我分析分析到底是哪里出現(xiàn)了問題? |
納米材料制備 |
銀蟲 (小有名氣)
|
夏幼南不是直接在玻璃瓶里反應(yīng)的? All the chemicals were obtained from Sigma-Aldrich and used as received. In a standard synthesis of Cu nanowires, 21 mg CuCl2·2H2O, 180 mg HDA, and 50 mg glucose (α or form) were dissolved in 10 mL water in a 22.2-mL vial (borosilicate glass vial, with a black phenolic molded screw cap and polyvinyl-faced pulp liner, VWR International, Radnor, PA) at room temperature. After the vial had been capped, the solution was magnetically stirred at room temperature overnight. The capped vial was then transferred into an oil bath and heated at 100 oC for 6 h under magnetic stirring. |
|
抽真空時(shí),當(dāng)真空度低于2000~3000pa左右, 水就會(huì)蒸發(fā)的,即產(chǎn)生冒泡現(xiàn)象。蒸發(fā)就會(huì)吸熱,再過一會(huì)就會(huì)凍成一坨,這就是真空冷凍干燥的原理。 發(fā)自小木蟲Android客戶端 |
新蟲 (小有名氣)
鐵桿木蟲 (正式寫手)

新蟲 (小有名氣)
鐵桿木蟲 (著名寫手)

新蟲 (初入文壇)
| 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] 321求調(diào)劑 +8 | 何潤采123 2026-03-18 | 10/500 |
|
|---|---|---|---|---|
|
[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 | 7/350 |
|
|
[考研] 材料與化工求調(diào)劑 +7 | 為學(xué)666 2026-03-16 | 7/350 |
|
|
[考研] 324分 085600材料化工求調(diào)劑 +3 | llllkkkhh 2026-03-18 | 3/150 |
|
|
[考研] 0703化學(xué)調(diào)劑 +5 | pupcoco 2026-03-17 | 8/400 |
|
|
[考研] 一志愿福大288有機(jī)化學(xué),求調(diào)劑 +3 | 小木蟲200408204 2026-03-18 | 3/150 |
|
|
[考研] 一志愿中海洋材料工程專碩330分求調(diào)劑 +7 | 小材化本科 2026-03-18 | 7/350 |
|
|
[考研] 材料080500調(diào)劑求收留 +4 | 一顆meteor 2026-03-13 | 4/200 |
|
|
[教師之家] 焦慮 +9 | 水冰月月野兔 2026-03-13 | 13/650 |
|
|
[考研] 材料工程專碩調(diào)劑 +5 | 204818@lcx 2026-03-17 | 6/300 |
|
|
[考研] 材料專碩306英一數(shù)二 +10 | z1z2z3879 2026-03-16 | 13/650 |
|
|
[考研] 0703化學(xué)求調(diào)劑 總分331 +3 | ZY-05 2026-03-13 | 3/150 |
|
|
[考研] 工科材料085601 279求調(diào)劑 +6 | 困于星晨 2026-03-17 | 6/300 |
|
|
[考研] 0703化學(xué)336分求調(diào)劑 +6 | zbzihdhd 2026-03-15 | 7/350 |
|
|
[考研] 301求調(diào)劑 +9 | yy要上岸呀 2026-03-17 | 9/450 |
|
|
[考研] 293求調(diào)劑 +11 | zjl的號(hào) 2026-03-16 | 16/800 |
|
|
[考研] 考研調(diào)劑 +3 | 淇ya_~ 2026-03-17 | 5/250 |
|
|
[考研] 中科院材料273求調(diào)劑 +4 | yzydy 2026-03-15 | 4/200 |
|
|
[考研] 中科大材料專碩319求調(diào)劑 +3 | 孟鑫材料 2026-03-13 | 3/150 |
|
|
[考研] 招收0805(材料)調(diào)劑 +3 | 18595523086 2026-03-13 | 3/150 |
|