Soluble Polymers with Intrinsic Porosity for Flue Gas Purification and Natural Gas Upgrading

Wang, Xinbo; Liu, Yang; Ma, Xiaohua; Das, Swapan Kumar; Ostwal, Mayur; Gadwal, Ikhlas; Yao, Kexin; Dong, Xinglong; Han, Yu; Pinnau, Ingo; Huang, Kuo‐Wei; Lai, Zhiping

doi:10.1002/adma.201605826

Cited by 43 publications

(35 citation statements)

References 48 publications

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“…As shown in Figure a, both PIM‐1 and hPIM‐1 manifest hybrid Type I/IV N 2 sorption isotherms with distinct hysteresis between adsorption and desorption branches, suggesting the coexistence of micropores (<2 nm) and mesopores (2–50 nm, possibly originated from interstitial voids among PIM‐1 nanospheres). It is worth noting that the PIM‐1 synthesized in this study has a specific BET surface area of 970 m 2 g −1 (Table ), which is much higher than that of DATPIM (190 m 2 g −1 ) and is also the highest among all the reported values for PIM‐1 (<860 m 2 g −1 ) . As expected, hPIM‐1 shows a lower BET surface area of 780 m 2 g −1 due to perturbed polymeric chain packing after hydrolyzation reactions, but is also higher than the reported values (<600 m 2 g −1 ) …”

Section: Resultssupporting

confidence: 50%

“…The stronger interaction between hPIM‐1 and CO 2 molecules is supported by the isosteric heat of adsorption ( Q st ) . hPIM‐1 has a relatively high zero‐coverage CO 2 Q st of 32.8 kJ mol −1 than that of PIM‐1 (20.8 kJ mol −1 , Table and Figure c, Supporting Information Figure S1‐S3), which is comparable to that of DATPIM (39.3 kJ mol −1 ), higher than that of pristine UiO‐66(Zr) (∼24 kJ mol −1 ), but lower than that of zeolite 13X (38 kJ mol −1 ) …”

Section: Resultsmentioning

confidence: 95%

“…For example, Pang and his co‐workers impregnated poly(ethylene imine) (PEI) into PIM‐1 and demonstrated that these materials could be solution‐processed into a variety of geometries for CO 2 capture from dilute sources . Based on this idea, Wang et al reported a novel solution‐processable polymer with intrinsic micropores named 2,4‐diamino‐1,3,5‐triazine (DAT)‐functionalized organic polymer with intrinsic microporosity (DATPIM), which exhibits excellent performance in flue gas separation and natural gas upgrading …”

Section: Introductionmentioning

confidence: 99%

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Solution‐reprocessable microporous polymeric adsorbents for carbon dioxide capture

Wang

et al. 2018

AIChE Journal

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Solution-processable microporous polymers are promising materials for CO 2 capture because of their low synthetic cost and high processability. In this work, we for the first time systematically evaluate the feasibility of two microporous polymers, namely PIM-1 and its hydrolyzed form hPIM-1, as adsorbent materials for postcombustion CO 2 capture. By conducting ternary CO 2 /N 2 /H 2 O breakthrough experiments, PIM-1 demonstrates several promising features: moderate CO 2 working capacity, low water vapor uptake capacity, good moisture resistance, and easy regeneration process. In addition, we have pioneeringly studied the multiple-cycle CO 2 adsorption-desorption induced relaxation effect on soft PIM-1 polymers. Through a simple dissolution-precipitation approach, PIM-1 can restore its BET surface area, CO 2 uptake capacity, and pore-size distribution. The solution reprocessability of PIM-1 demonstrated in this study distinguishes it from other rigid adsorbents and thus offers a new insight for the future design of economically-viable and facilely regenerable adsorbents.

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Section: Resultssupporting

confidence: 50%

Section: Resultsmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

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Solution‐reprocessable microporous polymeric adsorbents for carbon dioxide capture

Wang

et al. 2018

AIChE Journal

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“…Among the rare materials combining high surface area and processability, polymers of intrinsic microporosity (PIMs) [11,16] represent a promising class of compounds. They have been extensively studied, [17] and used to create separation membranes [18][19][20][21][22][23][24][25][26][27][28] and gas storage materials. [12,19,29,30] Our group recently studied the capacity of PIM-1 for hydrogen storage and its mechanical properties, [31,32] and demonstrated that its relatively limited surface area and hydrogen uptake capacity can be significantly enhanced by addition of high-surface area fillers.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the long-term stability of the polymer of intrinsic microporosity PIM-1 for hydrogen storage applications

Rochat

Polak-Kraśna

Tian

et al. 2019

International Journal of Hydrogen Energy

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Polymers of intrinsic microporosity, such as PIM-1, advantageously combine high surface areas with good processability, which are attractive properties for hydrogen storage applications. Here we address the lack of data on the long-term mechanical stability and hydrogen uptake capacity of PIM-1 in a study carried out over 400 days. Our results show that most mechanical and surface properties of PIM-1 remain stable over this time. In particular, the mechanical strength and elasticity are maintained, and the surface area remains constant over the course of our observations. In contrast, we detected a small but statistically significant decrease of the hydrogen storage capacity of the material over time, particularly in the first stages of aging. We attribute this phenomenon to the slow rearrangement of the polymer scaffold in the solid state. Taken together, our experiments demonstrate that PIM-1 possesses the long-term stability required for realistic applications in hydrogen storage or in gas separation.

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“…With the rapid consumption of fossil fuels to meet the ever-increasingg lobal energy demand, [1] one of the key challenges of this century is to identify as ustainable supply of carbon-neutral energy and the correspondingc arriers ystems. [2] In this regard, hydrogen has generated considerable interest as an environment-friendly efficient energy carrier [3] because it can be used in fuel cells to generate electricity with water as the only byproduct.…”

Section: Introductionmentioning

confidence: 99%

Single‐Site Ruthenium Pincer Complex Knitted into Porous Organic Polymers for Dehydrogenation of Formic Acid

et al. 2018

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Owing to its capacity for reversible hydrogen storage, formic acid (FA) holds great promise as an alternative energy carrier to conventional fossil fuel systems. Whereas the decomposition of FA to hydrogen (H2) and carbon dioxide (CO2) through homogeneous catalysis is well established, the selective and efficient dehydrogenation of FA by a robust heterogeneous catalyst remains a challenge. A new heterogeneous ruthenium pincer framework with single‐atomic sites was prepared in one step by the direct knitting of a phosphorus–nitrogen PN3P‐pincer ruthenium complex in a porous organic polymer. The heterogeneous ruthenium complex efficiently dehydrogenates formic acid in both organic and aqueous media with remarkably enhanced stability. Notably, no detectable CO was generated and a turnover number (TON) of 145 300 was attained in a continuous experiment with no significant decline in catalytic activity (in sharp contrast, a total TON of only 5600 was obtained with the homogeneous analog under the same conditions). The single‐atomic sites in the porous framework combined the desirable attributes of high reactivity and selectivity of a homogeneous catalyst with the significantly enhanced catalyst stability and reusability benefits of heterogeneous catalysis.

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Soluble Polymers with Intrinsic Porosity for Flue Gas Purification and Natural Gas Upgrading

Cited by 43 publications

References 48 publications

Solution‐reprocessable microporous polymeric adsorbents for carbon dioxide capture

Solution‐reprocessable microporous polymeric adsorbents for carbon dioxide capture

Assessment of the long-term stability of the polymer of intrinsic microporosity PIM-1 for hydrogen storage applications

Single‐Site Ruthenium Pincer Complex Knitted into Porous Organic Polymers for Dehydrogenation of Formic Acid

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