Carbon quantum dot micelles tailored hollow carbon anode for fast potassium and sodium storage

Hong, Wanwan; Zhang, Yu; Yang, Li; Tian, Ye; Ge, Peng; Hu, Jiugang; Wei, Weifeng; Zou, Guoqiang; Hou, Hongshuai; Ji, Xiaobo

doi:10.1016/j.nanoen.2019.104038

Cited by 259 publications

(150 citation statements)

References 73 publications

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“…However, as a nonrenewable resource, the price of LIBs has risen sharply in the last few years by reason of the scarcity of Li, which restricts the utilization of LIBs in large‐scale power storage systems to a certain extent. Sodium element is much alike to Li in properties, and its natural plentiful reserves and low price can significantly save the production cost of secondary batteries . Therefore, sodium‐ion batteries (SIBs) have gained excessive interest.…”

Section: Introductionmentioning

confidence: 99%

Na ₃ V ₂ (PO ₄ ) ₃ @NC composite derived from polyaniline as cathode material for high‐rate and ultralong‐life sodium‐ion batteries

et al. 2020

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Summary Polyaniline‐derived N‐doped carbon‐composited Na3V2(PO4)3 (NVP@NC) are synthesized by a rheological phase reaction followed by calcination. The NVP@NC composite displays improved cycling and rate properties. Its discharge capacity remains 118.7 mAh g−1 at the 400th cycle at 0.3 C. It also obtains invertible capacities of 93.7 and 91.1 mAh g−1 at 5 and 10 C after 1000 cycles, with capacity retention rates of 92.7% and 98.4%, respectively. These enhanced results due to the N‐doped carbon layer (NC), which restrains the expansion and deformation of the crystal structure, reduce the transport length of sodium ion and electrons and improves the electroconductibility of NVP.

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Section: Introductionmentioning

confidence: 99%

Na ₃ V ₂ (PO ₄ ) ₃ @NC composite derived from polyaniline as cathode material for high‐rate and ultralong‐life sodium‐ion batteries

et al. 2020

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“…Driven by the above sodium storage mechanism, the detailed sodium storage process of N 0.2 S 0.8 ‐MC is principally consists of three parts with the decrement of the voltage: i) Faraday behavior, ii) sodium ion physical desorption/adsorption over porous sites, and iii) ions intercalation at the graphitized units ( Figure 6 a) . Figure b exhibits the initial two and fifth to ninth GCD profiles with the current density of 100 mA g −1 and presents obviously voltage hysteresis between 0.01 and 3.0 V (V vs Na/Na + ).…”

Section: Resultsmentioning

confidence: 99%

Accurate Control Multiple Active Sites of Carbonaceous Anode for High Performance Sodium Storage: Insights into Capacitive Contribution Mechanism

Liang

et al. 2020

Advanced Energy Materials

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Heteroatom doping is widely recognized as an appealing strategy to break the capacitance limitation of carbonaceous materials toward sodium storage. However, the concrete effects, especially for heteroatomic phase transformation, during the sodium storage reaction remain a confusing topic. Here, a novel hypercrosslinked polymerization approach is demonstrated to fabricate pyrrole/thiophene hypercrosslinked microporous copolymer and further give porous carbonaceous materials with accurately regulated N/S dual doping corresponding to starting feeding ratios. Significantly, the N doping contributes to the conductivity and surface wettability, while the S doping is bridged to build stable active sites, which can be electrochemically converted into mercaptan anions via faraday reaction and further enhancing reversible capacities. Meanwhile, the abundant S doping can also conduce to the expanded interlayer spacing to shorten the ions diffusion distance, thus optimizing the reaction kinetic. As a result, the N0.2S0.8‐micro‐dominant porous carbon delivers the highest reversible capacity of 521 mAh g−1 at 100 mA g−1 and excellent cyclic stability over 2000 cycles at 2000 mA g−1 with a capacity decay of 0.0145 mAh g−1 per cycle. This work is anticipated to provide an in‐depth understanding of capacitance contribution and illuminate the heteroatomic phase transformation during sodium storage reactions for doping carbonaceous anodes.

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“…Hollow carbon spheres integrate the advantages of carbon materials with spherical colloids, endowing the amazing features such as low density, large space, regular geometry, and easy‐functionalized inner and outer surfaces. Over the past decades, explosive growth in the study of hollow carbon sphere presents great utilitarian value for various applications . Many synthetic strategies have been presented for preparing hollow/core–shell carbon spheres, including templating‐route, self‐assembly, emulsion polymerization, and modified Stӧber method .…”

Section: Preparation Of Carbon‐based Nanomaterialsmentioning

confidence: 99%

Structure Design and Composition Engineering of Carbon‐Based Nanomaterials for Lithium Energy Storage

Geng

Peng

et al. 2020

Advanced Energy Materials

134

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Carbon‐based nanomaterials have significantly pushed the boundary of electrochemical performance of lithium‐based batteries (LBs) thanks to their excellent conductivity, high specific surface area, controllable morphology, and intrinsic stability. Complementary to these inherent properties, various synthetic techniques have been adopted to prepare carbon‐based nanomaterials with diverse structures and different dimensionalities including 1D nanotubes and nanorods, 2D nanosheets and films, and 3D hierarchical architectures, which have been extensively applied as high‐performance electrode materials for energy storage and conversion. The present review aims to outline the structural design and composition engineering of carbon‐based nanomaterials as high‐performance electrodes of LBs including lithium‐ion batteries, lithium–sulfur batteries, and lithium–oxygen batteries. This review mainly focuses on the boosting of electrochemical performance of LBs by rational dimensional design and porous tailoring of advanced carbon‐based nanomaterials. Particular attention is also paid to integrating active materials into the carbon‐based nanomaterials, and the structure–performance relationship is also systematically discussed. The developmental trends and critical challenges in related fields are summarized, which may inspire more ideas for the design of advanced carbon‐based nanostructures with superior properties.

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Carbon quantum dot micelles tailored hollow carbon anode for fast potassium and sodium storage

Cited by 259 publications

References 73 publications

Na ₃ V ₂ (PO ₄ ) ₃ @NC composite derived from polyaniline as cathode material for high‐rate and ultralong‐life sodium‐ion batteries

Na ₃ V ₂ (PO ₄ ) ₃ @NC composite derived from polyaniline as cathode material for high‐rate and ultralong‐life sodium‐ion batteries

Accurate Control Multiple Active Sites of Carbonaceous Anode for High Performance Sodium Storage: Insights into Capacitive Contribution Mechanism

Structure Design and Composition Engineering of Carbon‐Based Nanomaterials for Lithium Energy Storage

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Carbon quantum dot micelles tailored hollow carbon anode for fast potassium and sodium storage

Cited by 259 publications

References 73 publications

Na 3 V 2 (PO 4 ) 3 @NC composite derived from polyaniline as cathode material for high‐rate and ultralong‐life sodium‐ion batteries

Na 3 V 2 (PO 4 ) 3 @NC composite derived from polyaniline as cathode material for high‐rate and ultralong‐life sodium‐ion batteries

Accurate Control Multiple Active Sites of Carbonaceous Anode for High Performance Sodium Storage: Insights into Capacitive Contribution Mechanism

Structure Design and Composition Engineering of Carbon‐Based Nanomaterials for Lithium Energy Storage

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Na ₃ V ₂ (PO ₄ ) ₃ @NC composite derived from polyaniline as cathode material for high‐rate and ultralong‐life sodium‐ion batteries

Na ₃ V ₂ (PO ₄ ) ₃ @NC composite derived from polyaniline as cathode material for high‐rate and ultralong‐life sodium‐ion batteries