• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Separation and Purification Technology >The development of reaction kinetics for CO2 absorption into novel solvent Frustrated Lewis (FLPs)
【24h】

The development of reaction kinetics for CO2 absorption into novel solvent Frustrated Lewis (FLPs)

机译：二氧化碳吸收反应动力学对新型溶剂令人沮丧的刘易斯（FLP）的发展

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Frustrated Lewis Pairs (FLPs) comprising sterically hindered Lewis acids and bases were developed and kinetic parameters for the homogenous reaction between CO2 and FLP dissolved in bromobenzene were obtained by using the stopped-flow method for the first time in the scope of this work. As a sterically hindered Lewis acid chlorobis(pentafluorophenyl)borane, B(C6F5)(2)Cl and as a sterically hindered Lewis base tri-tert-butylphosphine, tBu(3)P were analyzed. Experiments were performed by varying FLP concentration in bromobenzene medium over the range of 0.02-0.035 M and for a temperature range of 298-313 K. Modified termolecular reaction mechanism was used to analyse the experimental kinetic data. Then, the relatively low reaction rate of FLP: bromobenzene system was enhanced significantly by blending constant amounts of promoters, such as amino ethyl piperazine (AEPZ), carbonic anhydrase (CA) and 1-ethyl-3-methyl imidazolium bis (trifluoromethyl sulfonyl) imide ([emim][Tf2N]). The intrinsic reaction rates of promoted solvents were measured in a stopped-flow technique over a temperature range of 293-323 K. The empirical power law reaction orders with respect to FLP concentration were found to be between 1.0 and 2.0 at various temperatures. Additionally, at these operating conditions, the promoting effects of AEPZ, CA, and [emim][Tf2N] results in a higher reaction rate and lower activation energy values.
机译：通过使用停止流动方法在这项工作的范围中首次使用止动流法，产生涉及包含空间阻碍的路易斯酸和碱的令人沮丧的Lewis对酸和碱的动力学和溶解在溴苯中的均匀反应的动力学参数。作为空间阻碍的路易斯酸氯（五氟苯基）硼烷，B（C6F5）（2）Cl以及作为空间受阻的路易斯碱基三叔丁基膦，TBU（3）P分析。通过在0.02-0.035m的溴苯介质中的FLP浓度和298-313k的温度范围内进行实验。改性的术后反应机理分析实验动力学数据。然后，通过混合恒定量的促进剂，如氨基乙基哌嗪（AEPZ），碳酸酐酶（AEPZ），碳酸酐酶（AEPZ），碳酸酐酶（A）和1-乙基-3-甲基咪唑鎓双（三氟甲基磺酰基），显着提高FLP的反应速率：溴苯苯基苯系统Imide（[emim] [tf2n]）。在293-323k的温度范围内以止动流技术测量促进溶剂的固有反应速率。发现相对于FLP浓度的经验动力法反应序列在各种温度下为1.0和2.0。另外，在这些操作条件下，AEPZ，CA和[emim] [TF2N]的促进效果导致更高的反应速率和更低的激活能量值。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号