| 查看: 2786 | 回复: 13 | |||||||
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
» 收录本帖的淘帖专辑推荐
 科研资料 | 文献推荐 | 碳材料负载催化 | 论道 |
» 本帖已获得的红花（最新10朵）
» 猜你喜欢
化工学院（学院正式调剂群+联系方式）
已经有0人回复
-
化工学院（学院官方群）-院士团队招生-学生自由度高-培养模式成熟高效
已经有0人回复
-
无机化学论文润色/翻译怎么收费?
已经有53人回复
-
黑龙江大学分析化学招调剂
已经有0人回复
-
武汉高校国家级人才团队招收材料，化学，纺织等专业硕士调剂生
已经有26人回复
-
纺大化工学院（官方群）-院士团队招生-学生自由度高发展好-培养模式成熟
已经有0人回复
-
温州大学化材学院王娟课题组招生
已经有5人回复
-
学院官方群-院士团队招生-学生自由度高-培养模式成熟已有10余名学生赴985海外深造
已经有0人回复
-
武汉纺织大学化工学院官方群-院士团队招生-学生自由度高-10余名学生赴985海外深造
已经有0人回复
-
南昌航空大学蒋华麟教授课题组招收化学、环境、碳达峰碳中和及相关专业硕士信息
已经有0人回复
-
湖北师范大学复试调剂
已经有0人回复
» 本主题相关价值贴推荐，对您同样有帮助:
- Nature Material 上一篇关于热点材料的文章
已经有14人回复
- Nature Material关于多相催化operando characterization最新进展的综述
已经有7人回复
- 最新Nature Material——石墨烯的润湿透明性能（工艺简单，透明材料必备）
已经有271人回复
- nature material 投稿求助
已经有4人回复
- 上转换材料 最新nature material 上的文章
已经有53人回复
- 《Nature Material》 2011 Vol10 最新一期上的文献资源
已经有42人回复
- Nature Material 2011, Volume 10 No 9 中的几篇亮点文章
已经有63人回复
- nature material 投稿求助
已经有14人回复
8楼2013-02-25 17:32:15
steven_ban
铁虫 (小有名气)
- 应助: 2 (幼儿园)
- 金币: 221.8
- 帖子: 189
- 在线: 43.6小时
- 虫号: 1411825
- 注册: 2011-09-21
- 性别: GG
- 专业: 凝聚态物性 II ：电子结构
★
小木虫: 金币+0.5, 给个红包，谢谢回帖
小木虫: 金币+0.5, 给个红包，谢谢回帖
|
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. |
10楼2013-02-25 19:19:35
 |
2楼2013-02-25 08:14:41
送鲜花一朵
 |
3楼2013-02-25 08:23:17
4楼2013-02-25 09:49:33
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
小赖2012
铁杆木虫 (职业作家)
博士
- 应助: 2 (幼儿园)
- 金币: 8281.1
- 散金: 10082
- 红花: 15
- 帖子: 3343
- 在线: 341.5小时
- 虫号: 1891726
- 注册: 2012-07-13
- 性别: GG
- 专业: 化学动力学
6楼2013-02-25 15:36:18
| 谢谢分享 |
7楼2013-02-25 15:58:51
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
