In-situ reducing synthesis of MoP@nitrogen-doped carbon nanofibers as an anode material for lithium/sodium-ion batteries

Fu, Cuimei; Yang, Hao; Feng, Guofeng; Wang, Lina; Liu, Tianxi

doi:10.1016/j.electacta.2020.136921

Cited by 26 publications

(18 citation statements)

References 47 publications

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“…And the peaks at 860.5 and 878.0 eV correspond to satellite peaks (abbreviated as “sat.”). , In the P 2p spectrum (Figure g), the doublet at 128.9 and 129.8 eV is assigned to the P 2p 3/2 and 2p 1/2 of Ni 2 P, respectively, whereas a peak around 131.9 eV is related to the oxidized P species . The deconvolution of the N 1s spectrum (Figure S7b) at 403.0, 400.2, and 397.6 eV is attributed to oxidized N, pyrrolic N, and pyridinic N, respectively. , And the C 1s spectrum has been fitted by corresponding two peaks at 284.8 and 286.1 eV (Figure S7c), which are ascribed to graphitic C and C–N, respectively. , …”

Section: Resultsmentioning

confidence: 94%

Lithiophilic Nickel Phosphide Modifying Carbon Nanofibers for a Highly Reversible Lithium-Metal Anode

Tao

et al. 2022

ACS Appl. Energy Mater.

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A lithium (Li)-metal battery with high energy density is the most promising system for the next-generation battery. However, detrimental Li dendrite growth induced by uneven Li deposition causes inferior Coulombic efficiency (CE) and infinite volumetric expansion of Li-metal anodes. Herein, a flexible carbon nanofiber membrane modified by nickel phosphide (Ni2P@CNF) is proposed as an effective 3D framework to guide Li deposition behaviors. Even and dense deposition of Li is observed via ex situ/in situ morphological observations, ascribed to the homogeneous Li nucleation on the lithiophilic Ni2P crystalline grains. The efficient utilization of Li is achieved benefiting from the synergistic reversible conversion reactions between Li and Ni2P and plating/stripping of Li. Moreover, the fibrous networks of Ni2P@CNF retain structural stability upon prolonged cycling. Thus, an average CE of 97.6% at 5 mA cm–2 is available. And an extended lifespan of 2000 h at 0.5 mA cm–2 for a symmetrical cell of Ni2P@CNF@Li and 1000 cycles at 5 C (1 C = 170 mA g–1) for a Li||LiFePO4 cell are attained, revealing the great potential of a practical Li-metal anode.

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Section: Resultsmentioning

confidence: 94%

Lithiophilic Nickel Phosphide Modifying Carbon Nanofibers for a Highly Reversible Lithium-Metal Anode

Tao

et al. 2022

ACS Appl. Energy Mater.

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“…As such, it exhibited a high specific capacity (354 mA h g –1 at 1 A g –1 after 600 cycles), superior rate performance (133 mA h g –1 at 20 A g –1 ), and ultrastable cycling performance (183 mA h g –1 at 10 A g –1 after 3000 cycles). Recently, Fu et al 154 prepared MoP@N‐doped carbon nanofibers (MoP@NCNFs) through an electrospinning method combined with an in‐situ carbothermic self‐reduction process. The MoP nanoparticles were uniformly spread on the crosslinked 1D nanofibers, which can avoid the aggregation of MoP‐based nanoparticles as well as relax their volume stress upon phase conversion.…”

Section: Mpsmentioning

confidence: 99%

Advances in metal phosphides for sodium‐ion batteries

Yang

Chen

et al. 2021

SusMat

126

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Sodium‐ion batteries (SIBs) have been extensively studied as the potential alternative to lithium‐ion batteries (LIBs) due to the abundant natural reserves and low price of sodium resources. Nevertheless, Na+ ions possess a larger radius than Li+, resulting in slow diffusion dynamics in electrode materials, and thus seeking appropriate anode materials to meet high performance standards has become a trend in the field of SIBs. In this context, owing to the advantages of high theoretical capacity and proper redox potential, metal phosphides (MPs) are considered to be the promising materials to make up for the gap of SIBs anode materials. In this review, the recent development of MPs anode materials for SIBs is reviewed and analyzed comprehensively and deeply, including the synthesis method, advanced modification strategy, electrochemical performance, and Na storage mechanism. In addition, to promote the wide application of the emerging MPs anodes for SIBs, several research emphases in the future are pointed out to overcome challenges toward the commercial application.

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“…Besides the abovementioned metal phosphides, other phosphides have been also prepared and utilized. Currently, the emerged phosphides include GeP 3 , [ 122 ] GeP, [ 123 ] GeP 5 , [ 76 ] V 4 P 7 , [ 71 ] SiP 2 , [ 78 ] GaP, [ 124 ] MoP, [ 125 ] and Sn 4 P 3 . [ 126 ] For instance, Li et al.…”

Section: Phosphorus‐ and Phosphide‐based Materials For Libsmentioning

confidence: 99%

Phosphorus/Phosphide‐Based Materials for Alkali Metal‐Ion Batteries

Chen

Wang

et al. 2022

Advanced Science

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Phosphorus‐ and phosphide‐based materials with remarkable physicochemical properties and low costs have attracted significant attention as the anodes of alkali metal (e.g., Li, Na, K, Mg, Ca)‐ion batteries (AIBs). However, the low electrical conductivity and large volume expansion of these materials during electrochemical reactions inhibit their practical applications. To solve these problems, various promising solutions have been explored and utilized. In this review, the recent progress in AIBs using phosphorus‐ and phosphide‐based materials is summarized. Thereafter, the in‐depth working principles of diverse AIBs are discussed and predicted. Representative works with design concepts, construction approaches, engineering strategies, special functions, and electrochemical results are listed and discussed in detail. Finally, the existing challenges and issues are concluded and analyzed, and future perspectives and research directions are given. This review can provide new guidance for the future design and practical applications of phosphorus‐ and phosphide‐based materials used in AIBs.

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In-situ reducing synthesis of MoP@nitrogen-doped carbon nanofibers as an anode material for lithium/sodium-ion batteries

Cited by 26 publications

References 47 publications

Lithiophilic Nickel Phosphide Modifying Carbon Nanofibers for a Highly Reversible Lithium-Metal Anode

Lithiophilic Nickel Phosphide Modifying Carbon Nanofibers for a Highly Reversible Lithium-Metal Anode

Advances in metal phosphides for sodium‐ion batteries

Phosphorus/Phosphide‐Based Materials for Alkali Metal‐Ion Batteries

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