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shenhaiyu2007

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[求助] 请问如何测定催化剂中Ni与NiO比值?在线等

加氢催化剂中如何测定催化剂中Ni与NiO比值呢?
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zyhou

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【答案】应助回帖

感谢参与,应助指数 +1
用两次TPR就可以解决!

或者用XPS直接测量!
2楼2012-06-25 13:57:19
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shenhaiyu2007

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多谢。XRD能不能准确计算Ni与NiO比呢?
3楼2012-06-25 14:46:07
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shenhaiyu2007

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引用回帖:
3楼: Originally posted by shenhaiyu2007 at 2012-06-25 14:46:07
多谢。XRD能不能准确计算Ni与NiO比呢?

xps只能对催化剂表面进行分析,没有代表性。不知道您说的TPR具体怎么操作。
4楼2012-06-25 14:51:00
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zyhou

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【答案】应助回帖

测一下固定量的NiO的TPR,看看消耗多少氢气!
再测一下你的同样重量的样品,看看消耗多少氢!
二者对比一下就可以判断!
5楼2012-06-25 16:07:29
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