Carbon dioxide in the cage: manganese metal–organic frameworks for high performance CO<sub>2</sub>electrodes in Li–CO<sub>2</sub>batteries

Li, Siwu; Dong, Yu; Zhou, Junwen; Liu, Yuan; Wang, Jiaming; Gao, Xing; Han, Young‐Kyu; Qi, Pengfei; Wang, Bo

doi:10.1039/c8ee00415c

Cited by 176 publications

(155 citation statements)

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“…The increased CO 2 adsorption capacity of TTCOF-Zn/Ni/Cu compared to the host TTCOF-2H should be attributed to the strong affinity between the metal ion and CO 2 molecule. [16] At the same time, water vapor adsorption tests for TTCOFs showed characteristic type II isotherm ( Figure S26-S29), which indicated that the internal pore structure and external surface of these materials are accessible to water. [17] This hydrophilicity fact can also be demonstrated by water contact angles tests showing angles of 22-458 ( Figure S30).…”

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confidence: 89%

Rational Design of Crystalline Covalent Organic Frameworks for Efficient CO₂ Photoreduction with H₂O

et al. 2019

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Solar energy‐driven conversion of CO2 into fuels with H2O as a sacrificial agent is a challenging research field in photosynthesis. Herein, a series of crystalline porphyrin‐tetrathiafulvalene covalent organic frameworks (COFs) are synthesized and used as photocatalysts for reducing CO2 with H2O, in the absence of additional photosensitizer, sacrificial agents, and noble metal co‐catalysts. The effective photogenerated electrons transfer from tetrathiafulvalene to porphyrin by covalent bonding, resulting in the separated electrons and holes, respectively, for CO2 reduction and H2O oxidation. By adjusting the band structures of TTCOFs, TTCOF‐Zn achieved the highest photocatalytic CO production of 12.33 μmol with circa 100 % selectivity, along with H2O oxidation to O2. Furthermore, DFT calculations combined with a crystal structure model confirmed the structure–function relationship. Our work provides a new sight for designing more efficient artificial crystalline photocatalysts.

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confidence: 89%

Rational Design of Crystalline Covalent Organic Frameworks for Efficient CO₂ Photoreduction with H₂O

et al. 2019

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“…However, these batteries still exhibited the low coulombic efficiency and huge voltage polarization over charge. Subsequently, Cu/C, Ru/C, metal–organic framework (MOF)/C, Ni‐based and Mo‐based catalytic cathodes have been applied in Li–CO 2 batteries, and the relatively enhanced coulombic efficiencies were obtained . Especially, He and co‐workers significantly improved the coulombic efficiency and cycle life of Li–CO 2 batteries by using Ru@Super P nanoparticles as the catalyst .…”

Section: Introductionmentioning

confidence: 99%

Drawing a Pencil‐Trace Cathode for a High‐Performance Polymer‐Based Li–CO₂ Battery with Redox Mediator

Zhao

et al. 2019

Adv Funct Materials

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Lithium-carbon dioxide (Li-CO 2 ) batteries have received wide attention due to their high theoretical energy density and CO 2 capture capability. However, this system still faces poor cycling performance and huge overpotential, which stems from the leakage/volatilization of liquid electrolyte and instability of the cathode. A gel polymer electrolyte (GPE)-based Li-CO 2 battery by using a novel pencil-trace cathode and 0.0025 mol L −1 (M) binuclear cobalt phthalocyanine (Bi-CoPc)-containing GPE (Bi-CoPc-GPE) is developed here. The cathode, which is prepared by pencil drawing on carbon paper, is stable because of its typical limited-layered graphitic structure without any binder. In addition, Bi-CoPc-GPE, which consists of polymer matrix filled with liquid electrolyte, exhibits excellent ion conductivity (0.86 mS cm −1 ), effective protection for Li anode, and superior leakproof property. Moreover, Bi-CoPc acts as a redox mediator to promote the decomposition of discharge products at low charge potential. Interestingly, different from polymer-shaped discharge products formed in liquid electrolytebased Li-CO 2 batteries, the morphology of products in Li-CO 2 batteries using Bi-CoPc-GPE is film-like. Hence, this polymer-based Li-CO 2 battery shows superhigh discharge capacity, low overpotential, and even steadily runs for 120 cycles. This study may pave a new way to develop high-performance Li-CO 2 batteries.

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“…Later on, with 3D networks of carbon nanotubes (CNTs), Zhang et al achieved an improved cycling life of 29 cycles with controlled capacity of 1000 mAh g −1 at 50 mA g −1 . Very recently, metal–organic frameworks (MOFs) have been successfully introduced to Li‐CO 2 batteries with admirable performances . Typically, rechargeable Li‐CO 2 batteries use CO 2 as the active substance based on the electrochemical reaction of 4Li + 3CO 2 ↔ 2Li 2 CO 3 + C .…”

Section: Introductionmentioning

confidence: 99%

Fabricating Ir/C Nanofiber Networks as Free‐Standing Air Cathodes for Rechargeable Li‐CO₂ Batteries

Wang

Zhang

et al. 2018

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Li-CO batteries are promising energy storage systems by utilizing CO at the same time, though there are still some critical barriers before its practical applications such as high charging overpotential and poor cycling stability. In this work, iridium/carbon nanofibers (Ir/CNFs) are prepared via electrospinning and subsequent heat treatment, and are used as cathode catalysts for rechargeable Li-CO batteries. Benefitting from the unique porous network structure and the high activity of ultrasmall Ir nanoparticles, Ir/CNFs exhibit excellent CO reduction and evolution activities. The Li-CO batteries present extremely large discharge capacity, high coulombic efficiency, and long cycling life. Moreover, free-standing Ir/CNF films are used directly as air cathodes to assemble Li-CO batteries, which show high energy density and ultralong operation time, demonstrating great potential for practical applications.

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Carbon dioxide in the cage: manganese metal–organic frameworks for high performance CO₂electrodes in Li–CO₂batteries

Abstract: Manganese MOF-based cathodes achieve high discharge capacity, reduced overpotentials and promoted reversibility in Li–CO2batteries.

Cited by 176 publications

References 50 publications

Rational Design of Crystalline Covalent Organic Frameworks for Efficient CO₂ Photoreduction with H₂O

Rational Design of Crystalline Covalent Organic Frameworks for Efficient CO₂ Photoreduction with H₂O

Drawing a Pencil‐Trace Cathode for a High‐Performance Polymer‐Based Li–CO₂ Battery with Redox Mediator

Fabricating Ir/C Nanofiber Networks as Free‐Standing Air Cathodes for Rechargeable Li‐CO₂ Batteries

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Carbon dioxide in the cage: manganese metal–organic frameworks for high performance CO2electrodes in Li–CO2batteries

Abstract: Manganese MOF-based cathodes achieve high discharge capacity, reduced overpotentials and promoted reversibility in Li–CO2batteries.

Cited by 176 publications

References 50 publications

Rational Design of Crystalline Covalent Organic Frameworks for Efficient CO2 Photoreduction with H2O

Rational Design of Crystalline Covalent Organic Frameworks for Efficient CO2 Photoreduction with H2O

Drawing a Pencil‐Trace Cathode for a High‐Performance Polymer‐Based Li–CO2 Battery with Redox Mediator

Fabricating Ir/C Nanofiber Networks as Free‐Standing Air Cathodes for Rechargeable Li‐CO2 Batteries

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Carbon dioxide in the cage: manganese metal–organic frameworks for high performance CO₂electrodes in Li–CO₂batteries

Rational Design of Crystalline Covalent Organic Frameworks for Efficient CO₂ Photoreduction with H₂O

Rational Design of Crystalline Covalent Organic Frameworks for Efficient CO₂ Photoreduction with H₂O

Drawing a Pencil‐Trace Cathode for a High‐Performance Polymer‐Based Li–CO₂ Battery with Redox Mediator

Fabricating Ir/C Nanofiber Networks as Free‐Standing Air Cathodes for Rechargeable Li‐CO₂ Batteries