Biomass Alginate Derived Oxygen-Enriched Carbonaceous Materials with Partially Graphitic Nanolayers for High Performance Anodes in Lithium-Ion Batteries

Sun, Xiaolei; Chen, Yao; Li, Yang; Luo, Feng

doi:10.3390/nano13010082

Cited by 11 publications

(5 citation statements)

References 59 publications

(82 reference statements)

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“…The powder X-ray diffraction (PXRD) pattern of the L 600 sample exhibited broad peaks at 25 and 43° corresponding to the (002) and (100) planes of graphitic carbon. However, a shift in the (002) plane of graphitic carbon indicates the amorphous nature of the biomass-derived carbon (Figure a). − The PXRD patterns of Z 600 exhibited a sharp, intense peak at 26°, indicating the formation of highly graphitized carbon in the presence of metal particles . In addition to that, Z 600 exhibited diffraction peaks at 44.2, 51.6, and 75.8° assigned to the (111), (200), and (220) planes of Co nanoparticles, respectively (JCPDS file no.…”

Section: Resultsmentioning

confidence: 99%

Co-Incorporated N-Doped Micro–Meso Porous Carbon as an Electrocatalyst for Oxygen Reduction Reaction and Zn–Air Battery

K.,

Kharabe,

Barik

et al. 2024

Energy Fuels

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Metal–organic frameworks are considered ideal precursors for the preparation of transition-metal, heteroatom-doped carbon catalysts that are perceived to be efficient electrocatalysts for energy storage devices. Herein, we demonstrate the synthesis of ZIF-67-derived Co-incorporated N-doped porous carbon catalysts supported on high surface area microporous carbon prepared from a lotus seed shell. The combination of the two carbon catalysts in different weight ratios resulted in Co-incorporated N-doped carbon sheets with tuned surface area and porosity, enabling enhanced oxygen reduction reaction (ORR) activity in an alkaline medium. The optimized carbon catalyst ZL 600 (3:1) exhibited a half-wave potential of 0.79 V vs RHE and a limiting current density of −4.38 mA cm–2 in 0.1 M KOH solution with higher stability and methanol tolerance. The optimized sample ZL 600 (3:1) demonstrated as a cathode in a zinc–air battery exhibited an open circuit voltage of 1.29 V with a flat discharge profile at a current rate of 10 mA cm–2. The homemade system produced a specific capacity of 610 mAh g–1 and a peak power density of 111 mW cm–2, comparable to the cathode made with Pt/C. The high micro-mesoporosity, pyridinic and pyrrolic nitrogen contents, as well as enriched Co-active centers protected by carbon sheets favorably contributed to the efficient ORR mechanism.

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Section: Resultsmentioning

confidence: 99%

Co-Incorporated N-Doped Micro–Meso Porous Carbon as an Electrocatalyst for Oxygen Reduction Reaction and Zn–Air Battery

K.,

Kharabe,

Barik

et al. 2024

Energy Fuels

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show abstract

“…Moreover, the Raman spectroscopy technique exhibits a high degree of sensitivity to even the slightest structural variations present in carbon-based materials. Typically, the I D / I G ratio of integrated intensity (area) could serve as a valuable indicator for evaluating the level of disorder in carbon-based materials [ 41 ]. A high ratio of I D to I G suggests the production of significant quantities of defects.…”

Section: Resultsmentioning

confidence: 99%

Sodium Storage Properties of Carbonaceous Flowers

Sun

Luo

2023

Molecules

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As a promising energy storage system, sodium-ion batteries face challenges related to the stability and high-rate capability of their electrode materials, especially carbon, which is the most studied anode. Previous studies have demonstrated that three-dimensional architectures composed of porous carbon materials with high electrical conductivity have the potential to enhance the storage performance of sodium-ion batteries. Here, high-level N/O heteroatoms-doped carbonaceous flowers with hierarchical pore architecture are synthesized through the direct pyrolysis of homemade bipyridine-coordinated polymers. The carbonaceous flowers could provide effective transport pathways for electrons/ions, thus allowing for extraordinary storage properties in sodium-ion batteries. As a consequence, sodium-ion battery anodes made of carbonaceous flowers exhibit outstanding electrochemical features, such as high reversible capacity (329 mAh g−1 at 30 mA g−1), superior rate capability (94 mAh g−1 at 5000 mA g−1), and ultralong cycle lifetimes (capacity retention rate of 89.4% after 1300 cycles at 200 mA g−1). To better investigate the sodium insertion/extraction-related electrochemical processes, the cycled anodes are experimentally analyzed with scanning electron microscopy and transmission electron microscopy. The feasibility of the carbonaceous flowers as anode materials was further investigated using a commercial Na3V2(PO4)3 cathode for sodium-ion full batteries. All these findings indicate that carbonaceous flowers may possess great potential as advanced materials for next-generation energy storage applications.

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“…In alignment with global frameworks for achieving sustainable development, there is an increasing dependency on renewable energy sources [ 1 , 2 , 3 ]. This trend has accelerated the advancement of cost-effective and sustainable energy storage solutions [ 1 , 4 ].…”

Section: Introductionmentioning

confidence: 99%

Facile Fabrication of Large-Area CuO Flakes for Sodium-Ion Energy Storage Applications

Sun,

Luo

2024

Molecules

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CuO is recognized as a promising anode material for sodium-ion batteries because of its impressive theoretical capacity of 674 mAh g−1, derived from its multiple electron transfer capabilities. However, its practical application is hindered by slow reaction kinetics and rapid capacity loss caused by side reactions during discharge/charge cycles. In this work, we introduce an innovative approach to fabricating large-area CuO and CuO@Al2O3 flakes through a combination of magnetron sputtering, thermal oxidation, and atomic layer deposition techniques. The resultant 2D CuO flakes demonstrate excellent electrochemical properties with a high initial reversible specific capacity of 487 mAh g−1 and good cycling stability, which are attributable to their unique architectures and superior structural durability. Furthermore, when these CuO flakes are coated with an ultrathin Al2O3 layer, the integration of the 2D structures with outer nanocoating leads to significantly enhanced electrochemical properties. Notably, even after 70 rate testing cycles, the CuO@Al2O3 materials maintain a high capacity of 525 mAh g−1 at a current density of 50 mA g−1. Remarkably, at a higher current density of 2000 mA g−1, these materials still achieve a capacity of 220 mAh g−1. Moreover, after 200 cycles at a current density of 200 mA g−1, a high charge capacity of 319 mAh g−1 is sustained. In addition, a full cell consisting of a CuO@Al2O3 anode and a NaNi1/3Fe1/3Mn1/3O2 cathode is investigated, showcasing remarkable cycling performance. Our findings underscore the potential of these innovative flake-like architectures as electrode materials in high-performance sodium-ion batteries, paving the way for advancements in energy storage technologies.

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Biomass Alginate Derived Oxygen-Enriched Carbonaceous Materials with Partially Graphitic Nanolayers for High Performance Anodes in Lithium-Ion Batteries

Cited by 11 publications

References 59 publications

Co-Incorporated N-Doped Micro–Meso Porous Carbon as an Electrocatalyst for Oxygen Reduction Reaction and Zn–Air Battery

Co-Incorporated N-Doped Micro–Meso Porous Carbon as an Electrocatalyst for Oxygen Reduction Reaction and Zn–Air Battery

Sodium Storage Properties of Carbonaceous Flowers

Facile Fabrication of Large-Area CuO Flakes for Sodium-Ion Energy Storage Applications

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