Generalized Domino-Driven Synthesis of Hollow Hybrid Carbon Spheres with Ultrafine Metal Nitrides/Oxides

Xu, Fei; Ding, Baichuan; Qiu, Yuqian; Dong, Renhao; Zhuang, Wanqi; Xu, Xiaosa; Han, Haojie; Yang, Jiaying; Wei, Bingqing; Wang, Hongqiang; Kaskel, Stefan

doi:10.1016/j.matt.2020.05.012

Cited by 38 publications

(22 citation statements)

References 69 publications

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“…S(1) in the ESM) for EE-MoS2 ( Fig. 4(e)), respectively, suggesting the simultaneous presence of diffusiondominated and capacitive contributions to capacity [40][41][42]. Whereas the b values of peaks A and C are 0.91 (diffusiondominated and capacitive contributions) and 1.13 (only capacitive contribution) for ED-MoS2 (Fig.…”

Section: Resultsmentioning

confidence: 94%

Edge-enriched MoS2 for kinetics-enhanced potassium storage

Han

et al. 2020

Nano Res.

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Potassium-ion batteries (PIBs) hold great promise as alternatives to lithium ion batteries in post-lithium age, while face challenges of slow reaction kinetics induced by the inherent characteristics of large-size K +. We herein show that creating sufficient exposed edges in MoS 2 via constructing ordered mesoporous architecture greatly favors for improved kinetics as well as increased reactive sites for K storage. The engineered MoS 2 with edge-enriched planes (EE-MoS 2) is featured by three-dimensional bicontinuous frameworks with ordered mesopores of ~ 5.0 nm surrounded by thin wall of ~ 9.0 nm. Importantly, EE-MoS 2 permits exposure of enormous edge planes at pore walls, renders its intrinsic layer spacing more accessible for K + and accelerates conversion kinetics, thus realizing enhanced capacity and high rate capability. Impressively, EE-MoS 2 displays a high reversible charge capacity of 506 mAh•g −1 at 0.05 A•g −1 , superior cycling capacities of 321 mAh•g −1 at 1.0 A•g −1 after 200 cycles and a capacity of 250 mAh•g −1 at 2.0 A•g −1 , outperforming edge-deficient MoS 2 with nonporous bulk structure. This work enlightens the nanoarchitecture design with abundant edges for improving electrochemical properties and provides a paradigm for exploring high-performance PIBs.

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Section: Resultsmentioning

confidence: 94%

Edge-enriched MoS2 for kinetics-enhanced potassium storage

Han

et al. 2020

Nano Res.

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“…However, solid carbon nanospheres may suffer from the large volume expansion caused by the repeated potassiation/depotassiation of K + , which will lead to poor electrochemical stability. For this reason, design of hollow carbon nanospheres becomes an attractive method to promote the electrochemical performance, 119,120,129,131 because hollow carbon nanospheres can not only facilitate the stability of electrode materials for providing space for the volume expansion, 132 but also accelerate kinetics by shortening the ionic diffusion distance. 133,134 For example, Bin et al 130 reported that the hollow carbon nanospheres showed a lower charge-transfer impedance and improved battery performance comparing with solid carbon nanospheres, indicating a hollow structure was in favor of fast metal ion transportation kinetics.…”

Section: Construction Of Zero-dimensional (0d) Nanostructurementioning

confidence: 99%

“…And they show inadequate capability to rationally manipulate ultrafine nanoparticles (e.g., down to nanocluster) with adjustable content and compositional complexity, thus far restricting their potentials for highly efficient K + storage. Recently, Xu et al 131 reported a versatile, general, and template-free synthesis of uniform hollow hybrid carbon nanospheres with various encapsulated ultrafine metal nitrides/oxides down to nanocluster scale, such as vanadium nitride (VN), vanadium oxide, molybdenum nitride, tungsten nitride, and bimetal-based nitrides. This was accomplished by onepot aqueous solution chemistry with well-orchestrated domino-driven reactions; the micelle-interfacial copolymerization was applied for the polymeric shell formation, and meanwhile, the copolymerization-generated H + spontaneously triggered oxometallate condensation inside micelles for encapsulation (Figure 10B).…”

Section: F I G U R Ementioning

confidence: 99%

Architecture engineering of carbonaceous anodes for high‐rate potassium‐ion batteries

Zhang

Yang

et al. 2021

Carbon Energy

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The limited lithium resource in earth's crust has stimulated the pursuit of alternative energy storage technologies to lithium-ion battery. Potassium-ion batteries (KIBs) are regarded as a kind of promising candidate for large-scale energy storage owing to the high abundance and low cost of potassium resources. Nevertheless, further development and wide application of KIBs are still challenged by several obstacles, one of which is their fast capacity deterioration at high rates. A considerable amount of effort has recently been devoted to address this problem by developing advanced carbonaceous anode materials with diverse structures and morphologies. This review presents and highlights how the architecture engineering of carbonaceous anode materials gives rise to high-rate performances for KIBs, and also the beneficial conceptions are consciously extracted from the recent progress.Particularly, basic insights into the recent engineering strategies, structural innovation, and the related advances of carbonaceous anodes for high-rate KIBs are under specific concerns. Based on the achievements attained so far, a perspective on the foregoing, and proposed possible directions, and avenues for designing high-rate anodes, are presented finally.

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“…To reduce the usage of fossil fuels and sustainably develop renewable energy utilization, e.g., solar energy and wind energy, advanced energy storage systems (such as batteries and supercapacitors) are in high demand [1][2][3][4]. For example, lithium-ion batteries (LIBs) have seen tremendous success as one of the most common types of power source in the portable electronics market, due to their high energy density [5][6][7]. However, the fire risk of the flammable organic electrolyte, high cost, as well as limited reserves of lithium, severely restrict the largescale implementation of LIBs in automotive and stationary storage applications [8,9].…”

Section: Introductionmentioning

confidence: 99%

A Facile Chemical Method Enabling Uniform Zn Deposition for Improved Aqueous Zn-Ion Batteries

Liu

Omar

et al. 2021

Nanomaterials

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Rechargeable aqueous Zn-ion batteries (ZIBs) have gained great attention due to their high safety and the natural abundance of Zn. Unfortunately, the Zn metal anode suffers from dendrite growth due to nonuniform deposition during the plating/stripping process, leading to a sudden failure of the batteries. Herein, Cu coated Zn (Cu–Zn) was prepared by a facile pretreatment method using CuSO4 aqueous solution. The Cu coating transformed into an alloy interfacial layer with a high affinity for Zn, which acted as a nucleation site to guide the uniform Zn nucleation and plating. As a result, Cu–Zn demonstrated a cycling life of up to 1600 h in the symmetric cells and endowed a stable cycling performance with a capacity of 207 mAh g−1 even after 1000 cycles in the full cells coupled with a V2O5-based cathode. This work provides a simple and effective strategy to enable uniform Zn deposition for improved ZIBs.

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Generalized Domino-Driven Synthesis of Hollow Hybrid Carbon Spheres with Ultrafine Metal Nitrides/Oxides

Cited by 38 publications

References 69 publications

Edge-enriched MoS2 for kinetics-enhanced potassium storage

Edge-enriched MoS2 for kinetics-enhanced potassium storage

Architecture engineering of carbonaceous anodes for high‐rate potassium‐ion batteries

A Facile Chemical Method Enabling Uniform Zn Deposition for Improved Aqueous Zn-Ion Batteries

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