| 查看: 187 | 回复: 2 | |||
| 当前主题已经存档。 | |||
| 【悬赏金币】回答本帖问题，作者huangxiandi2007将赠送您 3 个金币 | |||
huangxiandi2007木虫 (初入文坛)
|
[求助]
求助翻译!
|
||
|
请高手帮帮忙!急用 A procedure to prepare Pt-promoted sulfated zirconia (SZ) catalysts which results in highly active and stable catalyst for n-pentane isomerization at atmospheric conditions, is described. High temperature calcination of SZ prior to Pt addition leads to elimination of loosely-bound sulfur species from the zirconia surface. Reducing the catalyst after Pt addition results in further increase in apparent activity. Upon repeated regenerations, an increase of up to 60% in conversion with iso-pentane selectivity of over 80% is observed. It is proposed that regenerative oxidation/reduction cycles lead to a restructuring of the acid and metal sites which facilitates hydrogen migration and helps to arrest deactivation. |
回复此楼» 猜你喜欢
实验室接单子
已经有6人回复
-
假如你的研究生提出不合理要求
已经有11人回复
-
全日制（定向）博士
已经有5人回复
-
萌生出自己或许不适合搞科研的想法，现在跑or等等看？
已经有4人回复
-
Materials Today Chemistry审稿周期
已经有4人回复
-
参与限项
已经有3人回复
-
对氯苯硼酸纯化
已经有3人回复
-
求助:我三月中下旬出站，青基依托单位怎么办？
已经有12人回复
-
所感
已经有4人回复
-
要不要辞职读博？
已经有7人回复
2楼2008-04-17 17:13:55
3楼2008-04-17 23:42:05