24小时热门版块排行榜    

Znn3bq.jpeg
查看: 377  |  回复: 10
当前主题已经存档。

dervish

金虫 (正式写手)

[交流] 【催化进展】Snapshots of Working Catalysts

Snapshots of Working Catalysts

Vanadium phosphates (VPOs) are used industrially to catalyze the partial oxidation of n-butane to maleic anhydride, which is then used as a starting material for products such as resins and lubricants. However, the reaction proceeds at elevated temperatures (in excess of 400°C), and VPO phases stable under those conditions will transform to other phases at ambient conditions, so an understanding of this catalyst demands that it be studied near its working conditions. Conte et al. (p. 1270) have used powder x-ray diffraction, as well as laser Raman spectroscopy and electron paramagnetic resonance spectroscopy, to determine the transformation of VPO phases as a function of temperature and with various reactants and products present over the catalyst. They conclude that the presence of the reactants rapidly converts -VOPO4 to -VOPO4, but that the initial formation of the phase may create the V5 sites associated with increased catalytic activity.

相关文章下载:
http://www.box.net/public/3h5dlh7o7t

[ Last edited by berlin on 2006-11-13 at 17:27 ]
回复此楼
一个论坛的好坏不在于论坛有多少会员有多大的服务器,在于论坛的人是否开心,是否互相帮助,互相关心。一个好的论坛就是一个开心的网上大家庭。
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

rabbit7708

荣誉版主 (职业作家)

心虫

0.5

支持一下,好久没来看贴子了。
呵呵。下载下来好好看看!
化学学科——催化专版欢迎您!:) http://emuch.net/bbs/forumdisplay.php?fid=190 常来看看哟!:)
2楼2006-09-01 12:23:41
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

1

3楼2006-09-01 13:11:15
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

wszynh

金虫 (小有名气)

1

好,多谢
4楼2006-09-01 15:16:47
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

1

5楼2006-09-01 22:20:40
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

1

6楼2006-09-02 01:07:22
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

1

7楼2006-09-02 08:00:57
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

1

8楼2006-09-02 08:05:48
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

zmzhou

至尊木虫 (职业作家)

1

非常感谢!
9楼2006-09-03 18:26:42
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

mesoporous

金虫 (小有名气)

1


ding yige
10楼2006-09-05 15:31:46
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 dervish 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
[考研] 275求调剂 +7 1624447980 2026-04-08 8/400 2026-04-11 00:45 by dc19971224
[考研] 一志愿211,化学学硕,310分,本科重点双非,求调剂 +17 努力奋斗112 2026-04-06 20/1000 2026-04-11 00:31 by wangjihu
[考研] 0703化学 +32 妮妮ninicgb 2026-04-04 37/1850 2026-04-10 22:18 by bljnqdcc
[考研] 求调剂 +16 MAX怅惘 2026-04-09 18/900 2026-04-10 20:24 by 小鬼喔~~
[考研] 347材料专硕求调剂 +19 zj8215216 2026-04-06 19/950 2026-04-10 09:36 by 690616278
[考研] 本科西工大 0856 324求调剂 +10 wysyjs25 2026-04-09 11/550 2026-04-10 08:37 by 5268321
[考研] 288求调剂,一志愿华南理工大学071005 +16 ioodiiij 2026-04-08 16/800 2026-04-09 23:08 by wolf97
[考研] 化工求调剂! +34 RichLi_ 2026-04-06 34/1700 2026-04-09 20:39 by zhouxiaoyu
[考研] 材料专硕(0856) 339分求调剂 +9 哈哈哈鹅哈哈哈 2026-04-09 10/500 2026-04-09 20:01 by Orcid
[论文投稿] 求助文献原文 10+3 18500821399 2026-04-08 3/150 2026-04-09 16:56 by 北京莱茵润色
[考研] 265求调剂 +4 风说她早忘了 2026-04-07 4/200 2026-04-09 13:59 by only周
[考研] 招收有机化学、化工,药学,食品灯专业学生 +3 yrfhjgdj 2026-04-08 3/150 2026-04-09 10:15 by QYQX_123
[考研] 一志愿哈工大,初试329,求环境科学与工程调剂! +11 余未辛 2026-04-06 11/550 2026-04-08 15:21 by screening
[考研] 338求调剂 +8 wxygxsaaaaa 2026-04-06 8/400 2026-04-08 06:58 by 无际的草原
[考研] 求调剂 +15 熊二想上岸 2026-04-06 15/750 2026-04-08 04:53 by 无际的草原
[考研] 323求调剂 +3 林zlu 2026-04-07 4/200 2026-04-07 23:21 by lbsjt
[考研] 081200-11408-367学硕求调剂 +4 1_2_3111 2026-04-06 4/200 2026-04-07 08:13 by jp9609
[考研] 326求调剂 +3 顾若浮生 2026-04-05 3/150 2026-04-05 18:32 by 蓝云思雨
[考研] 工科277分求调剂材料 +8 上了上了上哦 2026-04-05 9/450 2026-04-05 13:05 by wwytracy
[考研] 一志愿沪9,求生物学调剂,326分 +6 刘墨墨 2026-04-04 6/300 2026-04-04 19:44 by 唐沐儿
信息提示
请填处理意见