相关实验视频

Updated: May 2, 2026

Preparation of Hydrophobic Metal-Organic Frameworks via Plasma Enhanced Chemical Vapor Deposition of Perfluoroalkanes for the Removal of Ammonia

Preparation of Hydrophobic Metal-Organic Frameworks via Plasma Enhanced Chemical Vapor Deposition of Perfluoroalkanes for the Removal of Ammonia

Published on: October 10, 2013

在高度坚固的金属有机框架中通过完整的分子选机制从八烯中捕获六烯的痕迹

Lan Lan¹, Si-Jia Wei¹, Wei Xia²

¹School of Materials Science and Engineering, Academy for Advanced Interdisciplinary Studies, Nankai University, Tianjin, China.

Angewandte Chemie (International ed. in English)

|March 16, 2026

概括

一种新的金属有机框架,Ni-pca-pyz,可以有效地从八 (C3F8) 中去除六烯 (C3F6). 这种吸附剂具有高容量和选择性,对于净化电子特种气体至关重要.

科学领域:

材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.
环境科学环境科学

背景情况:

电子特种气体 (ESG) 的净化对于半导体制造至关重要.
在八二 (C3F8) 中含有诸如六二烯 (C3F6) 等微量杂质构成重大挑战.
现有的多孔吸附剂在有效去除杂质的容量-吸附权交易中扎.

研究的目的:

开发一个基准吸收剂,从C3F8.8.中深度去除C3F6.
克服当前吸附剂在实现高吸附能力和吸收率方面的局限性.
为工业规模的化ESG净化提供稳定和可回收材料.

主要方法:

一个新的金属有机框架的合成和表征,Ni-pca-pyz.
吸附异温和动力学研究,以评估C3F6和C3F8的吸收.
分子模拟和现场FTIR光谱学以阐明吸附机制.
列为过程验证的突破性实验.

主要成果:

Ni-pca-pyz表现出创纪录的C3F6/C3F8吸收比率,即137.6.6.
特殊的C3F6吸附能力为55.02cm3g-1在298K和1.0bar.
微不足道的C3F8吸附 (0.36cm3g-1) 和有效的C3F6扩散 (9.29×10-5s-1).
实现了 >99.999%的C3F8纯度,生产率为2.06 × 103 L kg-1.

结论:

由于其定制的孔隙结构和静电互补性,Ni-pca-pyz在选择性C3F6去除中表现出卓越的性能.
吸附剂显示出高稳定性,可回收性,并利用低成本的前体,使其在工业上可行.
这项工作为净化高电子特种气体提供了一个理想的平台.

关键词:

在C3F6/C3F8分离过程中.金属有机框架分子选分离分离分离支柱层战略的战略层.

更多相关视频

Preparation of Highly Porous Coordination Polymer Coatings on Macroporous Polymer Monoliths for Enhanced Enrichment of Phosphopeptides

Preparation of Highly Porous Coordination Polymer Coatings on Macroporous Polymer Monoliths for Enhanced Enrichment of Phosphopeptides

Published on: July 14, 2015

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes

Published on: August 16, 2018

相关概念视频

Extraction: Advanced Methods

Extraction: Advanced Methods

Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...