Ultrahigh Nitric Oxide Capture by Tetrakis(azolyl)borate Ionic Liquid through Multiple-Sites Uniform Interaction,ACS Sustainable Chemistry & Engineering

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Ultrahigh Nitric Oxide Capture by Tetrakis(azolyl)borate Ionic Liquid through Multiple-Sites Uniform Interaction
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2021-02-17 , DOI: 10.1021/acssuschemeng.1c00024
Ran Zhai ₁ , Xi He ₁ , Ke Mei ₁ , Kaihong Chen ₁ , Ningning Cao ₁ , Wenjun Lin ₁ , Haoran Li ₁ , Congmin Wang _{1,

2}

Affiliation

A synchronous strategy for improving the absorption/desorption to achieve highly efficient nitric oxide (NO) capture is proposed by the use of tetrakis(azolyl)borate ionic liquid (IL) [P₆₆₆₁₄][B(Im)₄] with multiple nonconjugated interaction sites. This IL exhibited an ultrahigh absorption capacity up to 8.13 mol of NO per mol of IL, good desorption, and excellent reversibility. Through a combination of absorption experiments, DFT calculations, and FT-IR and NMR characterizations, the results indicate that the ultrahigh NO capacity by [P₆₆₆₁₄][B(Im)₄] originated from multiple-sites chemisorption through the formation of diazeniumdiolates (NONOates), while uniform interaction of multiple nonconjugated sites was responsible for the unusual S-shaped absorption isobar, leading to good desorption and excellent reversibility, which was different from traditional ILs. We believe this work provides a new method for designing highly efficient gas absorbents.

中文翻译：

四（偶氮）硼酸根离子液体通过多位点均匀相互作用捕获超高一氧化氮

通过使用具有多个非共轭相互作用的四（偶氮基）硼酸酯离子液体（IL）[P ₆₆₆₁₄ ] [B（Im）₄ ]，提出了一种改善吸收/解吸以实现高效一氧化氮（NO）捕获的同步策略。网站。该IL表现出超高的吸收能力，每摩尔IL高达8.13 mol的NO，良好的解吸性和优异的可逆性。通过吸收实验，DFT计算以及FT-IR和NMR表征的结合，结果表明[P ₆₆₆₁₄ ] [B（Im）₄]源自二氮杂二醇二氮烯鎓（NONOates）的形成，引起多位化学吸附，而多个非共轭位点的均匀相互作用导致异常的S形吸收等压线，从而导致良好的解吸和出色的可逆性，这与传统的IL不同。我们相信这项工作为设计高效的气体吸收剂提供了一种新方法。

更新日期：2021-03-01

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