 |
 |
 |
 |
 |
 |
||
 |
 |
 |
 |
 |
| 1 | 1/1 | 返回列表 |
| 查看: 667 | 回復(fù): 0 | ||
| 【懸賞金幣】回答本帖問題，作者催化達(dá)人將贈送您 66 個金幣 | ||
催化達(dá)人金蟲 (著名寫手)
|
[求助]
Pt負(fù)載量問題求助
|
|
|
各位大神，文獻(xiàn)中材料合成過程為：400 mg of the as-prepared MOF-253was dispersed with a certain amount of H2PtCl6·6H2O (0.0211, 0.0444, and 0.1 mg) in acetonitrile (15 mL). The obtained solution was then heated at 85 °C in a Teflon-capped autoclave for 72 h. The formed solids were collected by centrifugation and then immersed in acetonitrile (15 mL) for 3 days. The solvent was replaced with fresh acetonitrile every 24 h. The products were then collected by filtration and dried at 150 °C for 12 h in vacuum. The obtained Pt@MOF-253 solids were then heat-treated at 900 °C at a ramp rate of 1 °C min–1 for 4 h in Ar atmosphere. Finally, the samples were pickled with NaOH solution at 70 °C for 6 h to remove inactive Al-metal species and residues, followed by thorough washing in deionized water until the resultant solution had a neutral pH, before finally being dried under vacuum at 80–110 °C. For simplicity, the as-obtained catalysts were labelled as Pt@N/C-x, where x represents 2%, 5%, and 10% of Pt-loading in the catalyst. 400 mg MOF-253分別與H2PtCl6·6H2O (0.0211, 0.0444, and 0.1mg)混合，制備出Pt@N/C，最終合成催化劑中Pt含量分別對應(yīng)為2%, 5%, and 10%。以2%Pt負(fù)載量為例，我算了下，400 mg MOF-253去掉Al、O、H等元素（只保留C/N）為240.8mg，0.0211H2PtCl6·6H2O中Pt的含量為0.00794mg，嚴(yán)重低于2%。特此向您求教Pt負(fù)載量是怎么確定的。謝謝~ 文章來源《Robust MOF-253-derived N-doped carbon confinement of Pt single nanocrystal electrocatalysts for oxygen evolution reaction》 |
回復(fù)此樓» 猜你喜歡
XPS/?λXPS
已經(jīng)有0人回復(fù)
-
河北大學(xué)-26年秋季入學(xué)化學(xué)博士招生
已經(jīng)有0人回復(fù)
-
金屬材料論文潤色/翻譯怎么收費(fèi)?
已經(jīng)有57人回復(fù)
-
招收2026年入學(xué)博士研究生
已經(jīng)有10人回復(fù)
-
0856材料306分調(diào)劑
已經(jīng)有2人回復(fù)
-
北京航空航天大學(xué)26級博士招生-生物醫(yī)學(xué)工程-合成生物學(xué)
已經(jīng)有13人回復(fù)
» 本主題相關(guān)商家推薦: (我也要在這里推廣)
相關(guān)版塊跳轉(zhuǎn)
我要訂閱樓主 催化達(dá)人 的主題更新
| 1 | 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] 328求調(diào)劑 +3 | vuzhdkfjkx 2026-03-04 | 3/150 |
|
|---|---|---|---|---|
|
[考研] 材料277分求調(diào)劑 +9 | 飯飯星球 2026-03-04 | 9/450 |
|
|
|
[考研] 材料復(fù)試調(diào)劑 +7 | 學(xué)材料的點 2026-03-01 | 8/400 |
|
|
|
[考研] 286 +6 | ksncj 2026-03-04 | 6/300 |
|
|
|
[考研] 一志愿中石油，化學(xué)工程，301求調(diào)劑 +3 | 豚饅枳枳 2026-03-04 | 3/150 |
|
|
|
[考研] 0856材料與化工求調(diào)劑！ +3 | 化工考生111 2026-03-04 | 7/350 |
|
|
|
[考研] 一志愿中科大080500總分324求調(diào)劑 +3 | jorna 2026-03-03 | 6/300 |
|
|
|
[考研]
 一志愿中南大學(xué)理學(xué)化學(xué)
+6
|
15779376950 2026-03-01 | 8/400 |
|
|
|
[考研]
0703化學(xué)學(xué)碩 288分
+4
|
旅行中的紫葡萄 2026-03-03 | 4/200 |
|
|
|
[考研] 266材料化工求調(diào)劑 +3 | 哇塞王帥 2026-03-03 | 3/150 |
|
|
|
[考研] 求調(diào)劑 +4 | Guo_yuxuan 2026-03-02 | 5/250 |
|
|
|
[考研] 0857調(diào)劑 +6 | 一ll半 2026-02-28 | 8/400 |
|
|
|
[考研] 324求調(diào)劑 +4 | wxz2 2026-03-03 | 5/250 |
|
|
|
[考研] 338求調(diào)劑 +5 | 18162027187 2026-03-02 | 6/300 |
|
|
|
[考研] 275求調(diào)劑 +7 | 明遠(yuǎn)求學(xué) 2026-03-01 | 7/350 |
|
|
|
[考研] 一志愿山東大學(xué)材料與化工325求調(diào)劑 +5 | 半截的詩0927 2026-03-02 | 5/250 |
|
|
|
[考研] 調(diào)劑 +3 | 13853210211 2026-03-02 | 4/200 |
|
|
|
[考研] 279求調(diào)劑 +3 | dua1 2026-03-01 | 4/200 |
|
|
|
[考研] 0856材料求調(diào)劑 +4 | 麻辣魷魚 2026-02-28 | 4/200 |
|
|
|
[基金申請]
剛錄用，沒有期刊號，但是在線可看的論文可以放為代表作嗎
 10+3
|
arang1 2026-03-01 | 3/150 |
|