24小时热门版块排行榜    

查看: 2646  |  回复: 4

fxlweifang

银虫 (初入文坛)

[求助] 乙二醇还原Pt 已有4人参与

各位朋友好,最近在做负载Pt的材料,用乙二醇液相还原的话,具体条件是什么? 谢谢各位
回复此楼

» 收录本帖的淘帖专辑推荐

Catalysis & Biomass

» 猜你喜欢

» 本主题相关商家推荐: (我也要在这里推广)

» 本主题相关价值贴推荐,对您同样有帮助:

已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

liwentao2010

荣誉版主 (文坛精英)

山涛

优秀版主优秀版主优秀版主优秀版主优秀版主

【答案】应助回帖


感谢参与,应助指数 +1
qixingzhen: 金币+1, 多谢回帖,欢迎常来交流~ 2014-07-09 14:12:58
不知楼主的乙二醇液相还原中催化剂是什么?我们基本都是采用水相NaBH4还原氯铂酸为Pt.
加油!
2楼2014-07-09 12:21:59
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

zyhou

专家顾问 (文坛精英)

【答案】应助回帖


感谢参与,应助指数 +1
qixingzhen: 金币+1, 多谢回帖,欢迎常来交流~ 2014-07-09 14:13:03
The reduction reaction was performed at 120 °C for 24 h under constant stirring。
可以参考:
Carbon, Volume 50, Issue 2, February 2012, Pages 586-596
Catalysis Communications, Volume 41, 5 November 2013, Pages 101-105
3楼2014-07-09 12:30:22
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

guoxg701

荣誉版主 (职业作家)

【答案】应助回帖


感谢参与,应助指数 +1
qixingzhen: 金币+1, 多谢回帖,欢迎常来交流~ 2014-07-09 14:13:08
这种文献很多,而且也很常见!
通常均需要加保护剂(如PVP等),不加碱情况下在198度回流3-5小时即可;加碱情况下在140度搅拌1小时即可。
获得Pt NPs粒径均在2-3nm左右!
J. Am. Chem. Soc., 2008, 130 (51), 17479-17486;
Angew. Chem. Int. Ed. 2005, 44, 4539 –4543
Chem. Commun., 2011, 47, 3951–3953;
绳锯木断,水滴石穿
4楼2014-07-09 12:37:31
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

linqi723

铁杆木虫 (著名写手)

【答案】应助回帖


感谢参与,应助指数 +1
liwentao2010: 金币+1, 谢谢回帖,欢迎交流 2014-07-09 18:45:13
可以参考王远的文章!
这方面 论坛里很多。

Wang, Y., et al. (2000). "Preparation of Tractable Platinum, Rhodium, and Ruthenium Nanoclusters with Small Particle Size in Organic Media." Chemistry of Materials 12(6): 1622-1627.

Preparation of “Unprotected” Platinum Nanoclusters.
All operations were carried out under inert atmosphere (Ar
or N2). In a typical preparation, a glycol solution of NaOH (50
mL, 0.5 M) was added into a glycol solution of H2PtCl6a6H2O
(1.0 g, 1.93 mmol in 50 mL) with stirring to obtain a
transparent yellow platinum hydroxide or oxide colloidal
solution which was then heated at 160 °C for 3 h, with an Ar
flow passing through the reaction system to take away water
and organic byproducts. A transparent dark-brown homogeneous
colloidal solution of the Pt metal nanocluster (Pt: 3.76
g/L glycol, 19.3 mmol/L) was obtained without any precipitate.
The obtained Pt nanocluster solution is very stable, no
precipitate was observed after standing for several months.
2013
5楼2014-07-09 16:57:34
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
相关版块跳转 我要订阅楼主 fxlweifang 的主题更新
信息提示
请填处理意见