24小时热门版块排行榜    

查看: 1295  |  回复: 3

happyd2s

金虫 (正式写手)

[求助] 钙钛矿合成

看了一篇文献Semiconducting Tin and Lead Iodide Perovskites with Organic Cations:Phase Transitions, High Mobilities, and Near-Infrared Photoluminescent Properties,里面提到合成CH3NH3PbI3钙钛矿的反应是在水溶液里进行的,无比好奇这个到底是怎么合成出来的,钙钛矿不是见水就分解吗?

自己试了两次,也都是呈现PbI2的的黄色溶液,没有析出钙钛矿。

这个文献引用率很高,一年160多次,工艺应该不会有假的,但是为什么重复不出来呢?

不知道有没有虫子看过这个?欢迎大家讨论一下~~~

附合成工艺:
1. A 100 ml 2-necked round bottom flask was charged with a mixture of aqueous HI (6.8 ml, 7.58M) and aqueous H3PO2 (1.7 ml, 9.14M). The liquid was degassed by passing a stream of nitrogen through it for 1 min and keeping it under a nitrogen atmosphere throughout the experiment.
2. PbI2 (462 mg, 1 mmol) was dissolved in the mixture upon heating the flask to 120oC using an oil bath, under constant magnetic stirring, forming a bright yellow solution.
3. To the hot yellow solution was added solid CH3NH3I (159 mg, 1 mmol) dissolving immediately.
4. The solution was evaporated to approximately half its original volume by heating at 120oC. The stirring was discontinued and the solution was left to cool back to room temperature.
5. Upon cooling, black, rhombic dodecahedral crystals (12 faces) of the title compound precipitated.
6. The crystals were left to grow inside the mother liquor for a further 24 h under a nitrogen atmosphere before being filtered and washed copiously with anhydrous EtOH. Yield 70-90%.
回复此楼
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

套大侠070212

至尊木虫 (知名作家)

上尉

还没想好,想好了在写上!
2楼2014-12-24 17:45:32
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

dinghu002

新虫 (正式写手)

我也看过这个文献,买了一些产品,对比了下,找个正规的公司购买比较可靠。
3楼2015-01-14 13:25:07
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

happyd2s

金虫 (正式写手)

引用回帖:
3楼: Originally posted by dinghu002 at 2015-01-14 13:25:07
我也看过这个文献,买了一些产品,对比了下,找个正规的公司购买比较可靠。

那重复出来了吗?
4楼2015-01-14 14:49:30
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 happyd2s 的主题更新
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[考研] 311求调剂 +3 勇敢的小吴 2026-03-20 3/150 2026-03-21 17:40 by ColorlessPI
[考研] 307求调剂 +3 余意卿 2026-03-18 3/150 2026-03-21 17:31 by ColorlessPI
[考研] 一志愿重庆大学085700资源与环境总分308求调剂 +7 墨墨漠 2026-03-20 7/350 2026-03-21 16:36 by barlinike
[考研] 求调剂 +3 .m.. 2026-03-21 4/200 2026-03-21 16:25 by barlinike
[考研] 330求调剂0854 +3 assdll 2026-03-21 3/150 2026-03-21 13:01 by 搏击518
[考研] 310求调剂 +3 baibai1314 2026-03-16 3/150 2026-03-21 03:56 by JourneyLucky
[考研] 南京大学化学376求调剂 +3 hisfailed 2026-03-19 6/300 2026-03-20 23:43 by hisfailed
[考研] 324求调剂 +5 lucky呀呀呀鸭 2026-03-20 5/250 2026-03-20 22:30 by 促天成
[考研] 288求调剂 +16 于海海海海 2026-03-19 16/800 2026-03-20 22:28 by JourneyLucky
[考研] 287求调剂 +7 晨昏线与星海 2026-03-19 8/400 2026-03-20 22:19 by JourneyLucky
[考研] 一志愿 南京航空航天大学大学 ,080500材料科学与工程学硕 +5 @taotao 2026-03-20 5/250 2026-03-20 20:16 by JourneyLucky
[考研] 求调剂 +3 暗涌afhb 2026-03-16 3/150 2026-03-20 00:28 by 河南大学校友
[考研] 081700化工学硕调剂 +3 【1】 2026-03-16 3/150 2026-03-19 23:40 by edmund7
[考研] 085600材料与化工求调剂 +6 绪幸与子 2026-03-17 6/300 2026-03-19 13:27 by houyaoxu
[考研] 308求调剂 +4 是Lupa啊 2026-03-16 4/200 2026-03-17 17:12 by ruiyingmiao
[考研] 有没有道铁/土木的想调剂南林,给自己招师弟中~ +3 TqlXswl 2026-03-16 7/350 2026-03-17 15:23 by TqlXswl
[考博] 26申博 +4 八6八68 2026-03-16 4/200 2026-03-17 13:00 by 轻松不少随
[考研] 一志愿南京大学,080500材料科学与工程,调剂 +4 Jy? 2026-03-16 4/200 2026-03-17 11:02 by gaoqiong
[考研] [导师推荐]西南科技大学国防/材料导师推荐 +3 尖角小荷 2026-03-16 6/300 2026-03-16 23:21 by 尖角小荷
[考研] 中科院材料273求调剂 +4 yzydy 2026-03-15 4/200 2026-03-16 15:59 by Gaodh_82
信息提示
请填处理意见