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中文摘要：
采用原位魔角旋转固体核磁共振技术研究了2-13C-异丁烷在SO4^2-／ZrO2上的重构化反应机理，考察了反应温度和H2气氛对反应的影响．结果表明，反应初期，异厂烷在SO4^2-／ZrO2上的重构化反应以单分子机理为主，之后向双分子机理转变；反应温度的升高有利于单分子机理向双分了机理的转变；H2的存在抑制了异丁烷的重构化反应，特别对其双分子机理的反应有较强的抑制作用。
英文摘要：
In situ 13C MAS NMR was employed to study the reaction mechanism of isobutane rearrangement over sulfated zirconia using 2-13C-isobutane as a reactant. The effects of temperature and hydrogen atmosphere on the reaction were investigated. The results showed that the reaction of isobutane proceeded mainly via a monomolecular mechanism in its early stage, and then a bimolecular mechanism became dominant. Increasing temperature also led to the reaction from monomolecular to bimolecular mechanism. In the presence of hydrogen, the reaction of isobutane rearrangement, in particular that through the bimolecular pathway, was significantly inhibited.
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