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cuihualin

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[交流] 【求助】这是什么:Fe3(P2O7)2化学名及结构?

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最好提供出处文献 哈
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bermuda

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虫海一粟

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cuihualin(金币+8,VIP+0): 6-5 21:36
http://d.wanfangdata.com.cn/NSTLQK_NSTL_QK9705547.aspx
The freshly calcined iron phosphate catalysts with a P/Fe atomic ratio of 1.0 similar to 1.3 consist of amorphous phase, quartz-type FePO4 and/or tridymite-type FePO4 depending on the calcination temperature, though they contain only Fe3+ ions. In the absence of oxygen, the P/Fe > 1.2 catalyst samples are reduced with hydrogen or isobutyric acid to form Fe2P2O7 via Fe-3(P2O7)(2). While the P/Fe = 1.0 samples are reduced to Fe2P2O7 not passing through Fe-3(P2O7)(2). Fe2P2O7 is oxidized with air to an unknown compound (Y phase), but not to Fe-3(P2O7)(2) nor FePO4. The Y phase is reduced to Fe2P2O7. During the use in the oxidative dehydrogenation of isobutyric acid, the freshly calcined catalysts are reduced to Fe-3(P2O7)(2), the Fe2P2O7 catalysts are in part oxidized to the Y phase, and the Y phase is in part reduced to Fe2P2O7, though the rates are very slow. The catalytic activity and selectivity are scarcely affected with the variation in the structure of the iron phosphate catalyst and in the oxidation states of iron ions. (C) 1996 Academic Press, Inc. [References: 15]

作 者: Muneyama E. Ohdan K. Ai M. Kunishige A. 刊 名: Journal of Catalysis 年,卷(期): 1996 Vol.158(No.2) 分类号: O63 TQ032 O64 关键词: 正文语种: Eng
4楼2009-06-05 21:25:58
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nano-metaloxide

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cuihualin(金币+2,VIP+0): 6-5 21:19
焦磷酸铁  焦磷酸盐的一种  最常用的是丁烷合成马来酸酐的焦磷酸钒
CHEMISTRY OF MATERIALS   卷: 19   期: 17   页: 4341-4348   出版年: AUG 21 2007
无善无恶心之体,有善有恶意之动,知善知恶是良知,为善去恶是格物。
2楼2009-06-05 17:45:56
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cuihualin

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引用回帖:
Originally posted by nano-metaloxide at 2009-6-5 17:45:
焦磷酸铁  焦磷酸盐的一种  最常用的是丁烷合成马来酸酐的焦磷酸钒
CHEMISTRY OF MATERIALS   卷: 19   期: 17   页: 4341-4348   出版年: AUG 21 2007

这是一种混合价态的铁 你说的命名并不准确  仍然谢谢你 哈
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3楼2009-06-05 21:20:31
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