24小时热门版块排行榜    

Znn3bq.jpeg
查看: 454  |  回复: 4
当前主题已经存档。

csfn

荣誉版主 (知名作家)

优秀超版优秀版主优秀区长

[交流] 【分享】9月25日的science:Al3+ as binding sites for Pt on Al2O3

abstract:
In many heterogeneous catalysts, the interaction of metal particles with their oxide support can alter the electronic properties of the metal and can play a critical role in determining particle morphology and maintaining dispersion. We used a combination of ultrahigh magnetic field, solid-state magic-angle spinning nuclear magnetic resonance spectroscopy, and high-angle annular dark-field scanning transmission electron microscopy coupled with density functional theory calculations to reveal the nature of anchoring sites of a catalytically active phase of platinum on the surface of a g-Al2O3 catalyst support material. The results obtained show that coordinatively unsaturated pentacoordinate Al3+ (Al3+ penta) centers present on the (100) facets of the g-Al2O3 surface are anchoring Pt. At low loadings, the active catalytic phase is atomically dispersed on the support surface (Pt/Al3+ penta = 1), whereas two-dimensional Pt rafts form at higher coverages.

title:Coordinatively Unsaturated Al3+ Centers as Binding Sites for Active Catalyst Phases of Platinum on g-Al2O3
from :25 SEPTEMBER 2009 VOL 325 SCIENCE


link:http://www.sciencemag.org/cgi/content/abstract/325/5948/1670

[ Last edited by mingdong on 2009-12-9 at 08:21 ]
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
2楼2009-09-27 20:22:36
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

fegg7502

荣誉版主 (知名作家)

3楼2009-09-28 01:03:35
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

fegg7502

荣誉版主 (知名作家)

优秀版主


小木虫(金币+0.5):给个红包,谢谢回帖交流
引用回帖:
Originally posted by csfn at 2009-9-25 09:35:
abstract:
In many heterogeneous catalysts, the interaction of metal particles with their oxide support can alter the electronic properties of the metal and can play a critical role in determining ...

连接呢?
心诚意正,方可始终;身无苦灭,永登光明。
4楼2009-09-28 01:05:15
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

csfn

荣誉版主 (知名作家)

优秀超版优秀版主优秀区长

引用回帖:
Originally posted by fegg7502 at 2009-9-28 01:05:

连接呢?

就知道你会有兴趣
5楼2009-09-28 07:54:38
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 csfn 的主题更新
普通表情 高级回复 (可上传附件)
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[基金申请] 今年审到国自然15份,谈谈感受 +13 国自然国社科中 2026-05-17 13/650 2026-05-18 10:10 by xiang104
[文学芳草园] 半夜喝咖啡 +3 myrtle 2026-05-15 5/250 2026-05-18 01:03 by 小沈2018
[找工作] 售SCI一区T0P文章,我:8.O.5.5.1.O.5.4,科目齐全,可+急 +4 ky2p12rrjj 2026-05-15 4/200 2026-05-17 19:47 by Equinoxhua
[硕博家园] 售SCI一区T0P文章,我:8.O.5.5.1.O.5.4,科目齐全,可+急 +6 l7k6xnh0yc 2026-05-14 7/350 2026-05-17 19:42 by Equinoxhua
[找工作] 售SCI一区T0P文章,我:8.O.5.5.1.O.5.4,科目齐全,可+急 +5 l7k6xnh0yc 2026-05-14 5/250 2026-05-17 19:39 by Equinoxhua
[考研] 售SCI一区T0P文章,我:8.O.5.5.1.O.5.4,科目齐全,可+急 +4 xx7gd5zq4e 2026-05-15 6/300 2026-05-17 19:36 by Equinoxhua
[教师之家] 上海大学实验技术岗位非升即走 +7 嘻嘻哈哈乐呵呵 2026-05-15 7/350 2026-05-17 16:58 by songwz
[考博] 2026博士还有哪些学校有名额 +6 小王求读研 2026-05-15 7/350 2026-05-17 16:54 by 知音湖畔
[考博] 光量子物理方向 博士招生 1人(2026.09) +3 sandyworld 2026-05-15 4/200 2026-05-17 14:38 by sandyworld
[基金申请] 这年头没有找到涵评专家,还有中面上的可能吗 +13 dd921ww 2026-05-12 16/800 2026-05-17 12:38 by 于轩
[硕博家园] 售SCI一区T0P文章,我:8.O.5.5.1.O.5.4,科目齐全,可+急 +4 v9tggjlwd0 2026-05-15 4/200 2026-05-17 08:06 by 11n4dfd8yn
[找工作] 售SCI一区T0P文章,我:8.O.5.5.1.O.5.4,科目齐全,可+急 +3 l7k6xnh0yc 2026-05-14 6/300 2026-05-17 07:31 by 11n4dfd8yn
[考研] 售SCI一区T0P文章,我:8.O.5.5.1.O.5.4,科目齐全,可+急 +4 l7k6xnh0yc 2026-05-14 8/400 2026-05-17 07:26 by 11n4dfd8yn
[找工作] 售SCI一区T0P文章,我:8.O.5.5.1.O.5.4,科目齐全,可+急 +3 k37jurhrau 2026-05-16 3/150 2026-05-17 01:37 by ue3ir18jc3
[硕博家园] 售SCI一区T0P文章,我:8.O.5.5.1.O.5.4,科目齐全,可+急 +4 x0mp7owy2b 2026-05-15 4/200 2026-05-16 17:45 by j6b2pdz07o
[文学芳草园] 风把牡丹吹跑了 +5 myrtle 2026-05-12 9/450 2026-05-15 15:27 by myrtle
[教师之家] 教学课件你会给同学吗 +8 硕士研究生吗 2026-05-13 8/400 2026-05-14 22:23 by 常规沥青
[考博] 26应届毕业生考博求助 +3 wo一定上岸 2026-05-13 3/150 2026-05-14 21:47 by 明海天涯
[考博] 材料类只有一篇综述能申博么 +4 乐逍遥谷 2026-05-13 4/200 2026-05-14 12:05 by zhyzzh
[论文投稿] 求助大佬sci投稿哪个好中 +3 江沅188 2026-05-12 4/200 2026-05-13 14:35 by 江沅188
信息提示
请填处理意见