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A comparative study on the production yield of H atom in the thermal decomposition of i-C4H10 and n-C4H10 : Examination of the contribution of the roaming radical channels.
Chemical Physics Letters ( IF 2.8 ) Pub Date : 2017-10-29 , DOI: 10.1016/j.cplett.2017.10.044
Wei-Yu Chen , Hiroyuki Matsui , Niann-Shiah Wang

The yields of H atoms in the thermal decomposition of i-C4H10 → products (1) and n-C4H10 → products (2) are measured at 1470-1800 K behind reflected shock waves. A comparative method is used to evaluate the branching fractions for i-C4H10 → CH3 + i-C3H7 (1a) and n-C4H10 → 2C2H5 (2b), where, C3H6 is used as a reference. The branching fractions for (1a) and (2b) are expressed by k1a/k1 = (0.64±0.14)(10-3T/K) - (0.06±0.23) and, k2b/k2 = (0.050±0.059)(10-3T/K) + (0.49±0.10), respectively. Contributions of the roaming channels are less than 12 and 5 % for i-C4H10 → CH4 + C3H6 (1b) and n-C4H10 → CH4 + C3H6 (2c), respectively.

中文翻译:

iC 4 H 10和nC 4 H 10热分解过程中H原子产率的比较研究:检查漫游自由基通道的作用。

在反射冲击波后的1470-1800 K下测量iC 4 H 10 →产物(1)和nC 4 H 10 →产物(2)的热分解过程中H原子的产率。使用一种比较方法来评估iC 4 H 10 →CH 3 + iC 3 H 7(1a)和nC 4 H 10 →2C 2 H 5(2b)的支化分数,其中C 3 H 6被用作参考。(1a)和(2b)的分支分数由k 1a / k 1表示=(0.64±0.14)(10 -3 T / K) - (0.06±0.23)和,ķ 2B / ķ 2 =(0.050±0.059)(10- 3 T / K)+(0.49±0.10),分别。对于iC 4 H 10 →CH 4 + C 3 H 6(1b)和nC 4 H 10 →CH 4 + C 3 H 6(2c),漫游信道的贡献分别小于12%和5%。
更新日期:2017-10-30
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