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慕童小丸子

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[求助] 求助翻译英文 已有1人参与

In fact, as shown in Table 3, although the rate constant (k2) of the cis-to-trans isomerization reaction was higher than that of tetralin hydrogenation reaction (k1) the cis–trans isomerization on Pt and Ni catalysts was taken place when the concentration of tetralin on the surface was decreased . As discussed in previous study, the high adsorption constant of tetralin compared to that of decalin may be ascribed to the parallel adsorption of a more rigid aromatic-containing molecule than a bent naphthenic molecule
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xhao0305

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慕童小丸子: 金币+2, 有帮助, 顺反异构的加氢反应速率大,发生异构不是应该的吗?第一句话是否有矛盾?求解 2016-01-21 08:45:49
实际上,如表3所示虽然顺式到反式异构化反应速率常数k2大于四氢化萘加氢反应速率k1,但是当四氢化萘的表面浓度降低时,Pt和Ni催化剂上却可以发生顺反异构。之前的研究工作显示,同十氢化萘相比,四氢化萘有更高的吸附常数,可能归因于弯曲构型的环烷烃分子相比平整的芳烃分子缺少平行的吸附位

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2楼2016-01-20 21:33:25
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