Two-Dimensional Anion-Pillared Metal–Organic Framework for Sieving Separation of Propylene from Propane with Ultrahigh Kinetic Performance

化学 丙烷 动能 金属有机骨架 离子 金属 无机化学 丙烯 化学工程 物理化学 有机化学 催化作用 吸附 量子力学 物理 工程类
作者
Tianhao Lan,Bin Yu,Yutao Liu,Dandong Ning,Chao Zhi,Yang Chen,Lin‐Bing Sun,Xili Cui,Jinping Li,Libo Li
出处
期刊:Inorganic Chemistry [American Chemical Society]
标识
DOI:10.1021/acs.inorgchem.5c00602
摘要

Adsorptive separation of propylene/propane using porous materials offers a promising alternative to energy-intensive cryogenic distillation. Molecular sieving-type adsorbents are considered the most ideal materials due to their superior selectivity and efficiency, but many suffer from limited adsorption capacity and slow diffusion due to small pore sizes. Here, we present a solvent-blocking strategy on NbOFFIVE-1-Ni (KAUST-7), the inaugural reported metal-organic framework for propylene/propane separation based on molecular sieving. By use of solvents of varying sizes, KAUST-7 with different framework strain energies and crystal morphologies was synthesized. Notably, methanol and ethanol facilitated the formation of well-defined rectangular nanosheets (designated as KAUST-7(MeOH) and KAUST-7(EtOH)), which have a high aspect ratio that shortens mass transfer paths and markedly augments gas diffusion. In comparison to the original sample, KAUST-7(MeOH) exhibits enhanced adsorption kinetics, with the propylene adsorption equilibrium time being curtailed by over 20-fold, along with a significantly enhanced adsorption capacity by 60% to 48 cm3 g-1, while the propane adsorption remains nearly unaltered. Molecular dynamics simulations reveal that methanol inhibits (0 0 2) faces more strongly, leading to faster lateral crystal growth. Its improved adsorption capacity, fast adsorption kinetics and regeneration, and excellent moisture stability make it a promising candidate for industrial application.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
五六七发布了新的文献求助10
1秒前
1秒前
css1997完成签到 ,获得积分10
3秒前
无限飞丹完成签到,获得积分10
3秒前
小饭完成签到,获得积分10
3秒前
Cl1audia发布了新的文献求助10
4秒前
所所应助木可采纳,获得10
4秒前
Gyro完成签到,获得积分10
6秒前
隐形曼青应助lzx采纳,获得10
6秒前
7秒前
体贴紫完成签到,获得积分10
8秒前
8秒前
8秒前
9秒前
五六七完成签到,获得积分10
9秒前
9秒前
liz_发布了新的文献求助10
10秒前
新xin发布了新的文献求助10
11秒前
CodeCraft应助111111111采纳,获得10
12秒前
汉堡包应助秋天里的水采纳,获得10
13秒前
量子星尘发布了新的文献求助10
13秒前
Gyro发布了新的文献求助50
13秒前
慕青应助keyun采纳,获得10
13秒前
体贴紫发布了新的文献求助10
13秒前
14秒前
Dr.Who发布了新的文献求助10
15秒前
16秒前
深情安青应助科研通管家采纳,获得10
16秒前
彭于晏应助科研通管家采纳,获得10
16秒前
搜集达人应助科研通管家采纳,获得10
16秒前
顾矜应助科研通管家采纳,获得10
16秒前
华仔应助科研通管家采纳,获得10
16秒前
Owen应助科研通管家采纳,获得10
16秒前
科研通AI2S应助科研通管家采纳,获得10
17秒前
赘婿应助科研通管家采纳,获得10
17秒前
Ava应助科研通管家采纳,获得10
17秒前
17秒前
17秒前
Owen应助科研通管家采纳,获得10
17秒前
桐桐应助科研通管家采纳,获得10
17秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3989444
求助须知:如何正确求助?哪些是违规求助? 3531531
关于积分的说明 11254250
捐赠科研通 3270191
什么是DOI,文献DOI怎么找? 1804901
邀请新用户注册赠送积分活动 882105
科研通“疑难数据库(出版商)”最低求助积分说明 809174