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zkzm

木虫 (著名写手)

送鲜花一朵
引用回帖:
6楼: Originally posted by zyhou at 2011-11-19 10:12:37:
如果不是写文章,而只是自己把握的话,
XRD最简洁、最经济。
如果粒径小于5纳米,XRD误差就比较大,可以用TEM
如果颗粒更小TEM也不清楚的话,可以用分辨率更高的STEM
如果上述手段还不见效(如果颗粒更小), ...

阁下真是强人啊,佩服!我做的是活性炭负载铜,TEM上可看到大约5nm的颗粒,肯定没你的好了,我使用的是等体积浸渍法。请问您用的什么方法,能告知一下吗?多谢
青春 大学 理想 人生 现实
11楼2011-11-22 08:49:43
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zyhou

专家顾问 (文坛精英)

引用回帖:
11楼: Originally posted by zkzm at 2011-11-22 08:49:43:
阁下真是强人啊,佩服!我做的是活性炭负载铜,TEM上可看到大约5nm的颗粒,肯定没你的好了,我使用的是等体积浸渍法。请问您用的什么方法,能告知一下吗?多谢

被你一表扬,我就更自恋了!

采用的是在水滑石前驱体中引入适量的铜,然后干燥、焙烧、还原。
Hydrogenolysis of glycerol over homogenously dispersed copper on solid base catalysts
Applied Catalysis B: Environmental, Volume 101, Issues 3-4, 14 January 2011, Pages 431-440

这个稿件投稿时受到了审稿专家的高度评价,两个审稿人给出的意见为:
Reviewer 1. The manuscript reports on an interesting and original copper base catalyst well characterized in its main surface and bulk properties and compared with similar and more conventionally prepared copper systems. The manuscript is well written and it has been well organized in several sections which appropriately described the various items of the developed work. The results are well described and the conclusions made by the authors are well supported by the experimental observations. Solid base catalysts are not actually well developed as well as the acidic ones and much work has to be made to obtain useful base catalysts for applicative purposes. For all these reasons, the present manuscript deserves publication in Applied Catalysis B.

Reviewer 2.
In this contribution, Yuan and co-workers described an interesting study concerning hydrogenolysis of glycerol to 1,2-propanediol. The authors have mainly studied the effects of catalyst preparation method on Cu dispersion and how this affects the activity of the catalyst and the selectivity to desired product. In general, there are some conclusions that are supported by the results, but there are some others that should be improved or addressed better.

论文发表以后也得到读者的高度认可,已经连续10个月高居本期刊Hottest 25论文之一。
http://top25.sciencedirect.com/s ... 9263373/archive/33/
本论文当年已经被引用6次。

我们采用类似的方法,制备了好些高分散的催化剂,已经发表的后续文章有:
Catalytic production of 1,2-propanediol from glycerol in bio-ethanol solvent  
Bioresource Technology, In Press, Accepted Manuscript, Available online 15 November 2011

Hydrogenolysis of glycerol on bimetallic Pd-Cu/solid-base catalysts prepared via layered double hydroxides precursors
Applied Catalysis A: General, Volume 403, Issues 1-2, 22 August 2011, Pages 173-182

上面胡言纯属自恋。

» 本帖已获得的红花(最新10朵)

12楼2011-11-22 09:36:07
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zkzm

木虫 (著名写手)

送鲜花一朵
引用回帖:
12楼: Originally posted by zyhou at 2011-11-22 09:36:07:
被你一表扬,我就更自恋了!

采用的是在水滑石前驱体中引入适量的铜,然后干燥、焙烧、还原。
Hydrogenolysis of glycerol over homogenously dispersed copper on solid base catalysts
Applied Catalysi ...

就是很强啊呵呵,祝贺!不过我做的是负载型的催化剂,一直在想办法改进呵呵,提高分散度,以后望多多指教!
青春 大学 理想 人生 现实
13楼2011-11-24 08:50:30
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leiws

至尊木虫 (职业作家)

木虫浪子

引用回帖:
6楼: Originally posted by zyhou at 2011-11-19 10:12:37:
如果不是写文章,而只是自己把握的话,
XRD最简洁、最经济。
如果粒径小于5纳米,XRD误差就比较大,可以用TEM
如果颗粒更小TEM也不清楚的话,可以用分辨率更高的STEM
如果上述手段还不见效(如果颗粒更小), ...

谢谢您的方法了,
人的烦恼就是记性太好,如果可以把所有事都忘掉,以后每一日都是个新开始,你说多好。
14楼2011-11-24 14:02:27
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