| 查看: 2719 | 回复: 13 | |||
| 当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖 | |||
jiaxe2003铁虫 (小有名气)
|
[交流]
关于催化剂稳定性的nature material 新文献一篇 已有12人参与
|
||
|
题目：Towards stable catalysts by controlling collective properties of supported metal nanoparticles 摘要：Supported metal nanoparticles play a pivotal role in areas such as nanoelectronics, energy torage/conversion and as catalysts for the sustainable production of fuels and chemicals. However, the tendency of nanoparticles to grow into larger crystallites is an impediment for stable performance. Exemplarily, loss of active surface area by metal particle growth is a major cause of deactivation for supported catalysts. In specific cases particle growthmight be mitigated by tuning the properties of individual nanoparticles, such as size, composition9 and interaction with the support. Here we present an alternative strategy based on control over collective properties, revealing the pronounced impact of the three-dimensional nanospatial distribution of metal particles on catalyst stability. We employ silica-supported copper nanoparticles as catalysts for methanol synthesis as a showcase. Achieving near-maximum interparticle spacings, as accessed quantitatively by electron tomography, slows down deactivation up to an order of magnitude compared with a catalyst with a non-uniform nanoparticle distribution, or a reference Cu=ZnO=Al2O3 catalyst.Our approach paves theway towards the rational design of practically relevant catalysts and other nanomaterials with enhanced stability and functionality, for applications such as sensors, gas storage, batteries and solar fuel production.  1.gif [ Last edited by jiaxe2003 on 2013-3-9 at 23:48 ] |
回复此楼» 本帖附件资源列表
-
欢迎监督和反馈：小木虫仅提供交流平台，不对该内容负责。
本内容由用户自主发布，如果其内容涉及到知识产权问题，其责任在于用户本人，如对版权有异议，请联系邮箱：xiaomuchong@tal.com - 附件 1 : nmat3471.pdf
2013-02-25 01:32:25, 552.89 K
» 本帖已获得的红花（最新10朵）
yongshengzhu» 猜你喜欢
请问对标matlab的开源软件octave的网站https://octave.org为什么打不开？
已经有1人回复
-
求助两种BiOBr晶体的CIF文件（卡片号为JCPDS 09-0393与JCPDS 01-1004 ）
已经有0人回复
-
金属材料论文润色/翻译怎么收费?
已经有240人回复
-
哈尔滨工程大学材化学院国家级青年人才-26年硕士招生
已经有0人回复
-
求助Fe-TCPP、Zn-TCPP的CIF文件，或者CCDC号
已经有0人回复
-
河北大学-26年秋季入学申请考核制-化学博士1名
已经有0人回复
-
XPS/?λXPS
已经有0人回复
jiaxe2003
铁虫 (小有名气)
- 应助: 6 (幼儿园)
- 金币: 1058.6
- 红花: 3
- 帖子: 70
- 在线: 29.8小时
- 虫号: 182572
- 注册: 2006-02-12
- 性别: GG
- 专业: 电化学
13楼2013-02-27 08:11:52
幸福少爷
铁杆木虫 (著名写手)
- 应助: 56 (初中生)
- 金币: 6720.1
- 散金: 220
- 红花: 11
- 沙发: 2
- 帖子: 1933
- 在线: 654.4小时
- 虫号: 1270366
- 注册: 2011-04-19
- 性别: GG
- 专业: 物理学I
5楼2013-02-25 14:43:31
8楼2013-02-25 17:32:15
easonchao
金虫 (著名写手)
- 应助: 36 (小学生)
- 金币: 1038.7
- 散金: 790
- 红花: 5
- 帖子: 1168
- 在线: 1255.6小时
- 虫号: 2228804
- 注册: 2013-01-08
- 性别: GG
- 专业: 金融学
9楼2013-02-25 18:11:19