A Metal–Organic Framework with Optimized Porosity and Functional Sites for High Gravimetric and Volumetric Methane Storage Working Capacities,Advanced Materials

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A Metal–Organic Framework with Optimized Porosity and Functional Sites for High Gravimetric and Volumetric Methane Storage Working Capacities
Advanced Materials ( IF 27.4 ) Pub Date : 2018-03-08 , DOI: 10.1002/adma.201704792
Hui-Min Wen _{1,

2} , Bin Li ₁ , Libo Li ₂ , Rui-Biao Lin ₂ , Wei Zhou ₃ , Guodong Qian ₁ , Banglin Chen ₂

Affiliation

Extensive research has been devoted to developing new porous materials with high methane storage capacity. While great progress has been made in recent years, it still remains very challenging to target simultaneously high gravimetric and volumetric methane (CH₄) working capacities (deliverable amount between 5.8 and 65 bar) in a single material. Here, a novel metal–organic framework (termed as UTSA‐110a) constructed by an extended linker containing a high density of functional nitrogen sites, exhibiting both very high gravimetric and volumetric working capacities of 317 cm³ (STP: 273.15 K, 1 atm) g⁻¹ and 190 cm³ (STP) cm⁻³, respectively, for robust MOFs, is reported. Both of these values are higher than those of two benchmark materials: HKUST‐1 (207 cm³ (STP) g⁻¹ or 183 cm³ (STP) cm⁻³) and UTSA‐76a (267 cm³ (STP) g⁻¹ or 187 cm³ (STP) cm⁻³). Computational studies reveal that it is the combination of optimized porosity and favorable binding sites that leads to the simultaneously high gravimetric and volumetric working capacities in this material.

中文翻译：

具有优化的孔隙率和功能位点的金属有机框架，可实现高重量和体积的甲烷存储工作能力

广泛的研究致力于开发具有高甲烷存储能力的新型多孔材料。尽管近年来已经取得了长足的进步，但在单一材料中同时实现高重量和体积甲烷（CH ₄）的工作能力（可输送量介于5.8和65 bar之间）仍然是非常具有挑战性的。在这里，一种新型的金属有机框架（称为UTSA-110a）由扩展的连接子构建而成，该连接子包含高密度的功能性氮位，显示出非常高的重量和体积工作能力，均为317 cm ³（STP：273.15 K，1个大气压））g ^-1和190 cm ³（STP）cm ^-3分别报告了健壮的MOF。这两个值的比两个基准材料更高：科大-1（207厘米³（STP）克^-1或183厘米³（STP）厘米^-3）和UTSA-76A（267厘米³（STP）克^{- 1}或187 cm ³（STP）cm ^-3）。计算研究表明，正是这种优化的孔隙率和良好的结合位点相结合，才导致该材料同时具有很高的重量和体积工作能力。

更新日期：2018-03-08

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