Capture and conversion of CO2 at ambient conditions by a conjugated microporous polymer

Xie, Yong; Wang, Tingting; Liu, Xiaohuan; Zou, Kun; Deng, Wei

doi:10.1038/ncomms2960

Cited by 700 publications

(411 citation statements)

References 34 publications

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“…19,20 Compared with other inorganic or inorganic-organic hybrid porous materials, CMPs have intrinsic advantages such as a high degree of p-conjunction, homogeneous microporous structure, ultrahigh specic surface area, diversity and exibility in the molecular design. Because of their unique features, CMPs have shown great potential in gas absorption, 21,22 gas separation, 23,24 heterogeneous catalysis 25,26 and so on. However, there have been only a few reports of CMPs applied for Li or Na storage.…”

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confidence: 99%

Conjugated microporous polymers with excellent electrochemical performance for lithium and sodium storage

et al. 2015

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Conjugated microporous polymers, which exhibit high specific capacity, superior cycle stability and remarkable rate capability, are explored as high-performance electrode materials for lithium and sodium storage. Their excellent electrochemical performance can be attributed to their conductive frameworks, plentiful redox-active units, high specific surface area and homogeneous microporous structure.In an effort to address the energy crisis and environmental issues, clean and sustainable energy systems have been investigated, such as solar cells, fuel cells and rechargeable batteries. Currently, lithium ion batteries (LIBs) dominate the portable consumer electronic market due to their high energy density.

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Conjugated microporous polymers with excellent electrochemical performance for lithium and sodium storage

et al. 2015

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“…Nevertheless, both high yields for cyclohexane oxide were obtained catalyzed by Mn-CTF (97%) and Ru-CTF (99%) after 24h (Entry 5 and 10). The high catalytic activity can be attributed to the enrichment of O 2 concentrations near the catalytic center located in the pore structures of Mn/Ru-CTF [16]. …”

Section: B the Catalytic Performance Of The Mn-ctf And Ru-ctfmentioning

confidence: 99%

Mn-, Ru-Coordinated Covalent Triazine Framework as Catalysts for Epoxidation of Cyclohexene

Liu¹,

Zhang²,

Deng³

et al. 2015

Proceedings of the 2015 Asia-Pacific Energy Equipment Engineering Research Conference

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Abstract-The alkene epoxidation is an important reaction for organic synthesis and the catalytic epoxidation of cyclohexene can be widely used for the synthesis of fine chemicals. In this work, a new kind of heterogeneous catalysts, Mn/Ru coorindated covalent triazine framework (Mn-CTF and Ru-CTF), for oxidation of cyclohexene to epoxy hexane were designed. The catalyst Mn-CTF/Ru-CTF was prepared via coordination of manganese chloride hydrate/ruthenium trichloride (III) hydrate with CTF, which was obtained by self-polymerization of 2, 6-pyridinedicarbonitrile. Reducing and oxidizing agents are isobutyraldehyde and molecular oxygen. The yield of epoxidation reaction of cyclohexene catalyzed by the Mn-CTF and Ru-CTF can be up to 97% and 99% under room temperature and atmospheric pressure, respectively.

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“…However, no studies involving the use of their carbides as anode material for LIBs have been reported to date. In a continuation of our previous studies on CMP materials, [24,[33][34][35] herein we describe a strategy for the synthesis of porous hard carbons (PHC) by means of a simple one-step thermolysis of CMP precursors. The CMPderived PHC shows not only the desired porous structure and large SSA, but also exhibits a highly reversible specific capacity, large rate performance, and long cycling life, which make them the promising candidates as anode materials for high performance LIBs.…”

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Conjugated Microporous Polymer‐Derived Porous Hard Carbon as High‐Rate Long‐Life Anode Materials for Lithium Ion Batteries

et al. 2013

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The development of vehicles using alternative fuel sources, such as hybrid electric vehicles, plug-in hybrid electric vehicles, and electric vehicles, requires advanced rechargeable batteries. Lithium ion batteries (LIBs) are promising candidates because of their intrinsic high energy density, high power density, and long cycling life. [1][2][3][4] The further development of LIBs could satisfy more rigorous demands such as high specific capacity, high rate performance, and long cycling life for the anode material. Silicon-based anode materials, [5][6][7] transition metal oxides, [8][9][10] and tin-based materials [11][12][13] are anode materials with high specific capacities. But they all have poor cycling performance because of the huge volume changes during the charge-discharge cycles. Therefore, carbon-based anode materials are still the focus of application and research as anode materials for LIBs. Graphite is the conventional anode material for commercial LIBs. [14,15] However, its limited specific capacity, susceptibility to exfoliation by electrolytes, poor rate performance, and short cycling life do not meet the needs of rapidly developing markets for LIBs. Porous carbons are promising anode materials for LIBs because of their high specific surface areas (SSA) and interconnected nanopores that can provide effective diffusion pathways for lithium ions. In addition, porous carbons have a high specific capacity provided by the large amount of active sites, no intercalation-induced exfoliation, reasonable electrical conductivity provided by the well-interconnected carbon walls, and minimized volume change during lithium intercalation-de-intercalation.[16] Therefore, it is important to prepare porous carbons with improved porosity. So far, a number of porous carbons have been prepared by using different methods such as hard templating, [17][18][19] hydrothermal carbonization, [20] and KOH treatment. [21] In addition, good rate capability and high capacities have been achieved by using these porous carbons as anode materials in LIB systems. For carbon-based anode materials, previous studies have shown that large SSA, pore volume, and high porosity of the porous carbon facilitate the enhancement of the performance of LIBs.[17] In most cases, however, it is difficult to obtain a porous carbon that fulfills such multivariable performance requirements, especially when using traditional materials such a gelatin, [17] sucrose, [18] polyacrylonitrile, [19] biomass, [20] and polypyrrole, [21] as carbon source. In particular, traditional synthesis methods involving the carbonization of low-vapor-pressure polymeric precursors 19,21] or natural sources [20] have their respective drawbacks, which are mostly associated with cross-linking reactions that proceed with concomitant char formation or uncontrolled vaporization during high-temperature pyrolysis. [22] Conjugated microporous polymers (CMP) have received considerable research interest because of their 3D interlinked porous structure, large Brunauer-Emmett-Teller (BET...

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Capture and conversion of CO2 at ambient conditions by a conjugated microporous polymer

Cited by 700 publications

References 34 publications

Conjugated microporous polymers with excellent electrochemical performance for lithium and sodium storage

Conjugated microporous polymers with excellent electrochemical performance for lithium and sodium storage

Mn-, Ru-Coordinated Covalent Triazine Framework as Catalysts for Epoxidation of Cyclohexene

Conjugated Microporous Polymer‐Derived Porous Hard Carbon as High‐Rate Long‐Life Anode Materials for Lithium Ion Batteries

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