A small-strain niobium nitride anode with ordered mesopores for ultra-stable potassium-ion batteries

Lee, Jisung; Kim, Seongseop; Park, Jae Hyuk; Jo, Changshin; Chun, Jinyoung; Sung, Yung‐Eun; Lim, Eunho

doi:10.1039/c9ta11663j

Cited by 39 publications

(27 citation statements)

References 64 publications

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“…Lee et al studied ordered mesoporous niobium nitride/N-doped carbon composite as an advanced anode material for application in K-ion batteries. 193 Structural characterization using in situ X-ray diffraction (XRD) showed that the high cycling stability (stable performance for 42000 cycles) is due, in part, to the negligible mechanical strain that the material experiences during cycling.…”

Section: Mesoporous Metal Oxides For Batteriesmentioning

confidence: 99%

Ordered mesoporous metal oxides for electrochemical applications: correlation between structure, electrical properties and device performance

Celik

Brezesinski

et al. 2021

Phys. Chem. Chem. Phys.

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Section: Mesoporous Metal Oxides For Batteriesmentioning

confidence: 99%

Ordered mesoporous metal oxides for electrochemical applications: correlation between structure, electrical properties and device performance

Celik

Brezesinski

et al. 2021

Phys. Chem. Chem. Phys.

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“…[31] Therein, polar NbN with high electronic conductivity (1.28 × 10 6 S m −1 ) and chemical stability has been explored as sulfur hosts and coating sepa rator material. [33] The mesoporous NbN microspheres/Ndoped graphene nanosheets have been reported for the first time as sulfur host materials that can efficiently immobilize LiPSs via NbS bond and promote conversion of LiPSs to Li 2 S, accom panied by an excellent cycle stability (0.09% capacity decay over 400 cycles). [29] Qiu et al have demonstrated NbNfunction alized separator can interact with LiPSs by experiments and theoretical calculations and high electrolyte wettability could reduce the transmission resistance of Li + through separator.…”

Section: Introductionmentioning

confidence: 99%

Dual‐Functional NbN Ultrafine Nanocrystals Enabling Kinetically Boosted Lithium–Sulfur Batteries

Shi

Liu

et al. 2022

Adv Funct Materials

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Herein, NbN nanocrystals immobilized on N-doped carbon nanosheets to functionalize a polypropylene (PP) membrane (NbN@NC/PP) with a thin coating of only 4 µm are designed and synthesized. The functional modifier layer allows for sulfur-involved transformations and also lithium plating behaviors. On the one hand, the sulfur cell with NbN@NC/PP separator exhibits excellent cycling stability and rate capacity. The good electrochemical performance partially results from the strong chemical interactions between NbN and lithium polysulfides via the formation of NbS and NLi bonds, which is proven by the first-principles calculations and X-ray photoelectron spectroscopy analyses. The formation of tiny nanoscrystals (<2 nm) and clusters tends to maximize the surface of NbN to interact with polysulfides and enable the effective catalysis over the sulfur-involved reactions. The higher exchange current density and Li + diffusion coefficient of NbN@NC/ PP cells experimentally verify that the introduction of NbN indeed catalytically accelerates the reaction kinetics. On the other hand, the performance of Li// Li symmetric cells demonstrates that the NbN@NC modifier layer can well induce homogeneous lithium deposition. This work confirms the application potential of NbN in lithium-sulfur batteries and encourages the exploration of prospective nitrides to engineer high performance next-generation batteries.

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“…These mesoporous microspheres possess many unique properties, including high surface area, large pore size and abundant mesostructures. [49][50][51][52][53] Moreover, the core-shell mesoporous structure protect cores from corrosion by acid or oxidation and provide porous shells for cargo loading and impregnation, thus expanding their applications. [54][55][56][57] The assynthesized Fe 3 O 4 @mesoSiO 2 microspheres were soaked in an aqueous solution containing of Y 3+ , Eu 3+ , and VO 4 3À (RE precursor) to introduce the precursor of YVO 4 :Eu 3+ into mesopore channels by virtue of capillary force.…”

Section: Resultsmentioning

confidence: 99%

Versatile core–shell magnetic fluorescent mesoporous microspheres for multilevel latent fingerprints magneto‐optic information recognition

Liu

Xie

et al. 2022

InfoMat

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Latent fingerprints are extremely vital for personal identification and criminal investigation, and potential information recognition techniques have been widely used in the fields of information and communication electronics. Although physical powder dusting methods have been frequently employed to develop latent fingerprints and most of them are carried out by using single component powders of micron‐sized fluorescent particles, magnetic powders, or metal particles, there is still an enormous challenge in producing high‐resolution image of latent fingerprints at different backgrounds or substrates. Herein, a novel and effective nanoimpregnation method is developed to synthesize bifunctional magnetic fluorescent mesoporous microspheres for latent fingerprints visualization by growth of mesoporous silica (mesoSiO2) on magical Fe3O4 core and then deposition of fluorescent YVO4:Eu3+ nanoparticles in the mesopores. The obtained Fe3O4@mesoSiO2@YVO4:Eu3+ microspheres possess spatially isolated magnetic core and fluorescent shell which were insulated by mesoporous silica layer. Due to their small particle size of submicrometer scale, high magnetization and low magnetic remanence as well as the combined magnetic and fluorescent properties, the microspheres show superior performance in visual latent fingerprint recognition with high contrast, high anti‐interference, and sensitivity as well as good retention on multifarious substrates regardless of surface permeability, roughness, refraction, colorfulness, and background fluorescence interference, and it makes them ideal candidates for practical application in fingerprint visualization and even magneto‐optic information storage.

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A small-strain niobium nitride anode with ordered mesopores for ultra-stable potassium-ion batteries

Abstract: Niobium nitride is first reported as an ultra-stable anode for KIBs. The superior electrochemical performance is attributed to large host for accommodating K ions with small-strain, and a high portion of the surface-controlled reaction.

Cited by 39 publications

References 64 publications

Ordered mesoporous metal oxides for electrochemical applications: correlation between structure, electrical properties and device performance

Ordered mesoporous metal oxides for electrochemical applications: correlation between structure, electrical properties and device performance

Dual‐Functional NbN Ultrafine Nanocrystals Enabling Kinetically Boosted Lithium–Sulfur Batteries

Versatile core–shell magnetic fluorescent mesoporous microspheres for multilevel latent fingerprints magneto‐optic information recognition

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