Tuning electronic and composition effects in ruthenium-copper alloy nanoparticles anchored on carbon nanofibers for rechargeable Li-CO2 batteries

Jin, Yachao; Chen, Fuyi; Wang, Jiali; Johnston, Roy L.

doi:10.1016/j.cej.2019.121978

Cited by 51 publications

(42 citation statements)

References 65 publications

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“…In a cathodic scan, due to the electrochemical reduction of CO 2 , a conspicuous cathodic peak evolves and consecutively gains intensity. [33] For the subsequent anodic scan, an anodic peak starting from 2.8 V (4e…”

Section: Resultsmentioning

confidence: 99%

Integrated Carbon Nanotube/MoO₃ Core/Shell Arrays as Freestanding Air Cathodes for Flexible Li–CO₂ Batteries

et al. 2021

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present very low charging overpotentials (<1 V). However, the unaffordable cost greatly restricts their application potential. In contrast, due to good electrical conductivity, the unique quantum size effect, and high specific surface area, carbon materials (graphene, [9] highly surface-wrinkled and N-doped CNT, [10] bamboo-like N-doped CNF [11] ) are widely used in various electrochemical catalysis fields. In particular, carbon nanomaterials such as graphene, CNFs, and CNTs are considered to be excellent materials for catalyzing the reduction of CO 2 due to their adjustable surface chemical state and controllable pore structure. Nevertheless,

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Section: Resultsmentioning

confidence: 99%

Integrated Carbon Nanotube/MoO₃ Core/Shell Arrays as Freestanding Air Cathodes for Flexible Li–CO₂ Batteries

et al. 2021

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“…Jin et al fabricated an intermixed composite catalyst by anchoring Ru–Cu alloy on CNF (RuCu/CNFs). [ 79 ] Li–CO 2 cells with the RuCu/CNF catalyst showed an extremely stable cycling performance (without an obvious capacity decline for 110 cycles). This research demonstrated that alloying a second metal to a noble metal would be a promising approach for developing CO 2 electrocatalysts.…”

Section: Cathode Materials and Electrocatalysts For Li–co2 Batteriesmentioning

confidence: 99%

“…This research demonstrated that alloying a second metal to a noble metal would be a promising approach for developing CO 2 electrocatalysts. [ 79 ] Zhang et al developed a composite catalyst with Ru–Cu particles codispersed on a graphene substrate. [ 80 ] They claimed that the synergistic effect of Cu and Ru could control the growth of discharge products (Figure 5d).…”

Section: Cathode Materials and Electrocatalysts For Li–co2 Batteriesmentioning

confidence: 99%

Recent Advances in Lithium–Carbon Dioxide Batteries

Manthiram

2020

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Toward global sustainable development, lithium-carbon dioxide (Li-CO 2) batteries not only serve as an energy-storage technology but also represent a CO 2 capture system. Since the beginning of their research in this decade, Li-CO 2 batteries have attracted growing attention. However, Li-CO 2 batteries are still in their infancy and are facing many scientific and technological challenges. From a fundamental perspective, the reaction mechanism of CO 2 cathode is not yet clear enough. Technologically, the high overpotential, low power density, poor rate capability, and limited cycle life impede the development of Li-CO 2 batteries for practical applications. Herein, the recent research progress in Li-CO 2 batteries in terms of reaction mechanisms, cathode catalyst design, electrolyte management, and anode protection are first summarized. In light of the state-of-the-art research advances, future perspectives and research directions are then put forward, aiming to provide insightful information for the development of practical Li-CO 2 batteries.

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“…For example, Ru nanoparticles on C nanofibers (CNFs) display a low overpotential of 1.43 V after 50 cycles at 100 mA g −1 in Li-CO 2 batteries [22]. Jin et al [23] reported that intermixed RuCu alloy nanoparticles on CNFs can work steadily for 110 cycles in Li-CO 2 batteries. Although these metal nanoparticle catalysts have improved the performance of Li-CO 2 batteries to some extent, the aggregation of nanoparticles and limited active sites of metal catalysts are obstacles preventing further improvement in the reversible decomposition of Li 2 CO 3 /C.…”

Section: Introductionmentioning

confidence: 99%

Fast decomposition of Li2CO3/C actuated by single-atom catalysts for Li-CO2 batteries

et al. 2021

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Lithium carbon dioxide (Li-CO 2 ) batteries deliver a theoretical energy density of 1876 W h kg −1 in terms of effective utilization of greenhouse gases. This battery system is considered to be an encouraging electrochemical energy storage device and a promising alternative to Li-ion batteries. However, the main drawback of Li-CO 2 batteries is their accumulative discharge product of Li 2 CO 3 /C, which leads to large overpotential and poor cycling performance. Thus, specific and efficient catalysts must be explored to enhance the decomposition of Li 2 CO 3 /C. Single-atom catalysts (SACs) are regarded as promising heterogeneous catalysts owing to their maximized utilization of metal atoms and strong interfacial electronic interactions. Herein, single-metal atoms of Fe, Co, and Ni uniformly anchored on N-doped reduced graphene oxide (rGO), designated as Fe 1 /N-rGO, Co 1 /N-rGO, and Ni 1 / N-rGO, respectively, are designed and fabricated to investigate their catalytic activity toward the decomposition of Li 2 CO 3 /C. Among them, Fe 1 /N-rGO delivers a high discharge capacity of 16,835 mA h g −1 at 100 mA g −1 and maintains stability for more than 170 cycles with a discharge voltage of 2.30 V at 400 mA g −1 . Therefore, this catalysts are overwhelmingly superior to other types. This work reveals the advances of SACs in Li-CO 2 batteries and offers an effective method for realizing high-performance Li-CO 2 batteries.

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Tuning electronic and composition effects in ruthenium-copper alloy nanoparticles anchored on carbon nanofibers for rechargeable Li-CO2 batteries

Cited by 51 publications

References 65 publications

Integrated Carbon Nanotube/MoO₃ Core/Shell Arrays as Freestanding Air Cathodes for Flexible Li–CO₂ Batteries

Integrated Carbon Nanotube/MoO₃ Core/Shell Arrays as Freestanding Air Cathodes for Flexible Li–CO₂ Batteries

Recent Advances in Lithium–Carbon Dioxide Batteries

Fast decomposition of Li2CO3/C actuated by single-atom catalysts for Li-CO2 batteries

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Tuning electronic and composition effects in ruthenium-copper alloy nanoparticles anchored on carbon nanofibers for rechargeable Li-CO2 batteries

Cited by 51 publications

References 65 publications

Integrated Carbon Nanotube/MoO3 Core/Shell Arrays as Freestanding Air Cathodes for Flexible Li–CO2 Batteries

Integrated Carbon Nanotube/MoO3 Core/Shell Arrays as Freestanding Air Cathodes for Flexible Li–CO2 Batteries

Recent Advances in Lithium–Carbon Dioxide Batteries

Fast decomposition of Li2CO3/C actuated by single-atom catalysts for Li-CO2 batteries

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Product

Resources

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Integrated Carbon Nanotube/MoO₃ Core/Shell Arrays as Freestanding Air Cathodes for Flexible Li–CO₂ Batteries

Integrated Carbon Nanotube/MoO₃ Core/Shell Arrays as Freestanding Air Cathodes for Flexible Li–CO₂ Batteries