H2 reduction of hydrogen molybdenum bronze to porous molybdenum oxide and its catalytic properties for the conversions of pentane and propan-2-ol
H2 reduction of hydrogen molybdenum bronze to porous molybdenum oxide and its catalytic properties for the conversions of pentane and propan-2-ol
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DOI：
10.1016/j.apcata.2005.01.027
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发表时间：
2005-04
影响因子：
5.5
通讯作者：
H. Sakagami;Y. Asano;N. Takahashi;T. Matsuda
中科院分区：
文献类型：
--
作者：
H. Sakagami;Y. Asano;N. Takahashi;T. Matsuda
研究了H2还原对氢钼青铜H1.55MoO3物理性能和催化性能的影响。H2还原增加了H1.55MoO3和Pt/MoO 3的比表面积，但没有增加MoO 3的比表面积。H1.55MoO3经H2还原后，成为正戊烷异构化和异丙醇脱水的活性催化剂。H2还原的H1.55MoO3的催化活性与H2还原的Pt/MoO 3相当，并且远高于H2还原的MoO 3。在H1.55MoO3和Pt/MoO 3的还原过程中，氢钼青铜相分解后生成氢氧化钼MoOxHy。相比之下，MoO 3被还原为MoO 2，而没有形成氢青铜。从这些结果中，我们建议，氢钼青铜的H2还原将产生MoOxHyphase，可以作为活性相的戊烷和丙醇的转化。
The effects of H2reduction on the physical and catalytic properties of one type of hydrogen molybdenum bronze, H1.55MoO3, were studied. H2reduction enlarged the surface areas of H1.55MoO3and Pt/MoO3, but not the surface area of MoO3. H1.55MoO3became an active catalyst for pentane isomerization and for propan-2-ol dehydration after H2reduction. The catalytic activities of H2-reduced H1.55MoO3were comparable to those of H2-reduced Pt/MoO3, and were much higher than those of H2-reduced MoO3. In reduction of H1.55MoO3and Pt/MoO3, molybdenum oxyhydride, MoOxHy, was formed after the decomposition of the hydrogen molybdenum bronze phase. By contrast, MoO3was reduced to MoO2without the formation of hydrogen bronze. We propose from these results that H2reduction of hydrogen molybdenum bronze will generate the MoOxHyphase that can act as the active phase for the conversions of pentane and propan-2-ol.