Nanotube Heterostructures Research Articles

Modulated electronic structure of atomic W-doped NiO/Cr2S3 nanotube heterostructure on nickel foam for enhanced overall water splitting

Critical for advancing hydrogen energy industrialization is the need to engineer durable and highly active non-precious electrocatalysts for the hydrogen/oxygen evolution reaction (HER/OER). In this study, we developed a novel approach to construct a vertically grown W-doped NiO/Cr2S3 nanotube heterostructure on nickel foam (referred to as tube W-NiO/Cr2S3/NF). This heterostructure serves as an efficient and bifunctional electrocatalyst for overall water splitting through a combination of electrodeposition and etching processes. Our systematic investigations revealed that W-doping effectively induces modifications in the electronic structure of NiO/Cr2S3, thereby boosting its intrinsic activities. Density functional theory reveals that catalytic activity for HER is influenced by the energy states of active valence dz2 orbitals. After W-doping, the resulting antibonding state orbital's unique property, neither completely empty nor fully filled, leads to an ideal hydrogen adsorption energy. Consequently, tube W-NiO/Cr2S3/NF exhibits significantly enhanced performance for overall water splitting. As a bifunctional electrode, tube W-NiO/Cr2S3/NF demonstrates remarkable activity, achieving a cell voltage of 1.58 V at a current density of 10 mA cm−2 for overall water splitting. Furthermore, it exhibits outstanding stability over 100 h in a 1.0 M KOH solution, outperforming commercial Pt-C and IrO2 counterparts.

(Invited) Assembly of Carbon Nanotubes Heterostructures Down to Single-Particle Control

We will present different chemical strategies for the in-solution assembly of single walled carbon nanotube (SWCNT)-based heterostructures, down to single-particle control and resolution. In particular, we interfaced SWCNTs to inorganic semiconducting nanoparticles and nanocrystals, perovskites, as well as metal nanoparticles and nanowires. We developed various approaches towards this end, from the selective and differential functionalisation of CNTs terminal ends with distinct individual nanomoieties , to the use of nanotubes as templates for the growth of nanomaterials on their sidewall or in their cavity. Solution-processed optoelectronic devices were fabricated employing the aforementioned nanohybrids, displaying various sensitivity to a broad range of illumination wavelengths.

Performance Characterization and Analytical Modelling of Electrostatic Doped Heterostructure Nanotube Tunnel Field Effect Transistor

Performance Characterization and Analytical Modelling of Electrostatic Doped Heterostructure Nanotube Tunnel Field Effect Transistor

Co-Doped Porous Carbon/Carbon Nanotube Heterostructures Derived from ZIF-L@ZIF-67 for Efficient Microwave Absorption.

Carbon-based magnetic metal composites derived from metal-organic frameworks (MOFs) are promising materials for the preparation of broadband microwave absorbers. In this work, the leaf-like co-doped porous carbon/carbon nanotube heterostructure was obtained using ZIF-L@ZIF-67 as precursor. The number of carbon nanotubes can be controlled by varying the amount of ZIF-67, thus regulating the dielectric constant of the sample. An optimum reflection loss of -42.2 dB is attained when ZIF-67 is added at 2 mmol. An effective absorption bandwidth (EAB) of 4.8 GHz is achieved with a thickness of 2.2 mm and a filler weight of 12%. The excellent microwave absorption (MA) ability is generated from the mesopore structure, uniform heterogeneous interfaces, and high conduction loss. The work offers useful guidelines to devise and prepare such nanostructured materials for MA materials.

Integration of high-entropy nanozyme and hollow In2S3 nanotube heterostructures decorated with WO3 for ultrasensitive PEC aptasensing of highly toxic mycotoxin

As a highly toxic mycotoxin, patulin threatens human and animal health. Herein, a new signal amplification strategy was designed for photoelectrochemical (PEC) analysis of patulin based on nanotube-like In2S3/WO3 heterostructures with the assistance of PtRuFeCoW high-entropy alloy nanorods (HEANRs). Specifically, the prominent photoactivity of the In2S3/WO3 was investigated by UV−vis diffuse reflectance and photoluminescence spectroscopy, coupled by elaborating the photoelectron transport mechanism in detail. Simultaneously, the excellent peroxidase-like activity of the PtRuFeCoW HEANRs was certificated mainly by UV–vis absorption spectroscopy. On such foundation, the PtRuFeCoW HEANRs modified capture DNA was cast onto the In2S3/WO3 based photoanode for catalyzing 4-chloro-1-naphthol (4-CN) oxidation to form insoluble benz-4-chloro-hexadienone (4-CD) precipitate in the presence of H2O2, ultimately weakening the PEC currents. The resulting PEC sensor exhibited a wider detection range from 0.1 pg mL−1 to 500 ng mL−1 and a lower detection limit was down to 0.063 pg mL−1 (S/N = 3). The HEANRs nanozyme assisted PEC method holds great promise for ultrasensitive detection of environmental pollutants in practice.

Lacunary polyoxometalates-induced controllable synthesis of Fe2O3/Si-FeWO4 heterostructure nanotubes for selective sensing of m-xylene

Metal oxide-based gas sensors encounter challenges in effectively detecting hazardous benzenes due to their stability and structural similarities. Here we report an innovative in situ growth method for synthesizing Fe2O3/Si-FeWO4 heterostructure nanotubes (NTs) using highly negatively charged multivacant lacunary TBA4H6[SiW9O34]·2H2O (α-SiW9) and Fe3+ as precursors. A two-step process involving electrospinning followed by a thermal oxidation method was employed to synthesize a series of the uniform Si-FeWO4 decorated Fe2O3 heterostructure NTs. Considering the rich Fe2O3/Si-FeWO4 active interfaces, rapid electron transfer, and high specific surface area, the optimal Fe2O3/Si-FeWO4 based sensors demonstrate significantly higher sensitivity (S = 27.5) towards 50 ppm m-xylene in comparison to pristine Fe2O3 (S = 1.8). Furthermore, the Fe2O3/Si-FeWO4 exhibits excellent stability, humidity resistance, and high selectivity for m-xylene. This work offers an efficient, cost-effective strategy to synthesize Fe2O3/Si-FeWO4 heterostructure NTs, with prospects for synthesizing other advanced sensing heterostructure nanomaterials with lacunary polyoxometalates as precursors.

Deformation behaviors of hydrogen filled boron nitride and boron nitride - carbon nanotubes: Molecular dynamics simulations of proposed materials for hydrogen storage, gas sensing, and radiation shielding

Boron nitride nanotubes (BNNTs) have been extensively studied for hydrogen storage, sensing, and radiation shielding applications. The deformation behaviors of pristine, defective, and H2-encapsulated closed-end armchair BNNTs and BNNT-carbon nanotube (CNT) heterostructures are investigated using molecular dynamics employing the ReaxFF interatomic potential and a combination of Tersoff, adaptive intermolecular reactive empirical bond order, and Lennard-Jones potentials. The calculated elastic properties for pristine BNNTs and CNTs are in excellent agreement with published reliable data. The nanotube length and diameter, defects, entrapped hydrogen content, and temperature all affect the mechanical properties significantly. The ReaxFF potential predicts H2 molecule adsorption on B atoms of undeformed BNNTs whilst under strain, the H2 molecules show preference for the N atoms. Hydrogen adsorption leads to lowering of the elastic and fracture strength of BNNTs. The ReaxFF potential is shown to be a reliable forcefield for investigating the interaction of H2 molecules with BNNTs and BNNT-CNT heterotubes.

Ultrasensitive Bio-H2S Gas Sensor Based on Cu2O-MWCNT Heterostructures.

Developing a respiratory analysis disease diagnosis platform for the H2S biomarker has great significance for the real-time detection of various diseases. However, achieving highly sensitive and rapid detection of H2S gas at the parts per billion level at low temperatures is one of the most critical challenges for developing portable exhaled gas sensors. Herein, Cu2O-multiwalled carbon nanotube (MWCNT) heterostructures with excellent gas sensitivity to H2S at room temperature and a lower temperature were successfully synthesized by a facile two-dimensional (2D) electrodeposition in situ assembly method. The combination of Cu2O and MWCNTs via the principle of optimal conductance growth not only reduced the initial resistance of the material but also provided an ideal interfacial barrier structure. Compared to the response of the pure Cu2O sensor, that of the Cu2O-MWCNT sensor to 1 ppm of H2S increased nearly 800 times at room temperature, and the response time decreased by more than 500 s. In addition to the excellent sensitivity with detection limits as low as 1 ppb, the Cu2O-MWCNT sensor was extremely selective with low-temperature adaptability. The sensor had a response value of 80.6 to 0.1 ppm of H2S at -10 °C, which is difficult to achieve with sensors based on oxygen adsorption/desorption mechanisms. The sensor was used for the detection of real oral exhaled breath, confirming its feasibility as a real-time disease monitoring sensor. The Cu2O-MWCNT heterostructures maximized the advantages of the individual components and laid the experimental foundation for future applications of highly sensitive portable breath analysis platforms for monitoring H2S.

Sorting of Cluster-Confined Metallic Single-Walled Carbon Nanotubes for Fabricating Atomically Vacant Uranium Oxide.

Single-walled carbon nanotube (SWCNT) heterostructures have shown great potential in catalysis, magnetism, and nanofluidics, in which host SWCNTs with certain conductivity (metallic or semiconducting) are highly required. Herein, inspired by the large molecular weight and redox properties of polyoxometalate (POM) clusters, we reported the selective separation of POM encapsulated metallic SWCNTs (POM@m-SWCNTs) with a uniform diameter through density gradient ultracentrifugation (DGU). The confined POMs increased the SWCNT density and amplified the nanotubes' density difference, thus greatly lowering the centrifugal force (70,000g) of DGU. With this strategy, a series of POM@m-SWCNTs of ∼1.2 nm with high purity were sorted. The mechanism supported by theoretical and experimental evidence showed that the separation of m-SWCNTs depended on not only nanotube/cluster size but also the conductivity of SWCNTs. The smallest 1.2 nm m-SWCNT that can exactly accommodate a 0.9 nm-{Mo6} cluster exhibited the maximum electron transfer to inner clusters; thus, intertube π-π stacking of such m-SWCNTs was greatly loosened, leading to the preferential dispersion into individual ones and partitioning in the uppermost layer after DGU. As a proof-of-concept application, this sorting strategy was extended to separate heavy-element 238U-encapsulated m-SWCNTs. The phase-pure, tiny (1-2.5 nm) U4O9 crystals with atomic vacancy clusters were fabricated on m-SWCNTs through growth kinetic control. This work may provide a general way to construct desired actinide materials on specific SWCNTs.

The enhancement of photocatalytic activity of porous g-C3N4@TiO2 nanotubes heterostructure

The g-C3N4 nanosheets were uniformly grown on TiO2 nanotubes with porous structure via the improved methods of impregnation calcination and facial vapor deposition. The photocatalytic performance of the g-C3N4/TiO2 nanotubes was evaluated by the degradation of methyl orange solution (MO) and exhibited higher photodegradation rate than the pure g-C3N4 or TiO2 nanotubes under xenon light irradiation, which may be attributed to the increased specific surface area and efficiently separation of photon-generated electrons/holes by the heterostructure. This work provides a simple and efficient scheme of manufacturing porous heterostructure nanotubes for environmental and energy applications.

Biaxially‐Strained Phthalocyanine at Polyoxometalate@Carbon Nanotube Heterostructure Boosts Oxygen Reduction Catalysis

AbstractIron phthalocyanine (FePc) with unique FeN4 site has attracted increasing interests as a promising non‐precious catalyst. However, the plane symmetric structure endows FePc with undesired catalytic performance toward the oxygen reduction reaction (ORR). Here, we report a novel one‐dimensional heterostructured ORR catalyst by coupling FePc at polyoxometalate‐encapsulated carbon nanotubes (FePc‐{PW12}@NTs) using host‐guest chemistry. The encapsulation of polyoxometalates can induce a local tensile strain of single‐walled NTs to strengthen the interactions with FePc. Both the strain and curvature effects of {PW12}@NT scaffold tune the geometric structure and electronic localization of FeN4 centers to enhance the ORR catalytic performance. As expected, such a heterostructured FePc‐{PW12}@NT electrocatalyst exhibits prominent durability, methanol tolerance, and ORR activity with a high half‐wave potential of 0.90 V and a low Tafel slope of 30.9 mV dec−1 in alkaline medium. Besides, the assembled zinc‐air battery demonstrates an ultrahigh power density of 280 mW cm−2, excellent charge/discharge ability and long‐term stability over 500 h, outperforming that of the commercial Pt/C+IrO2 cathode. This study offers a new strategy to design novel heterostructured catalysts and opens a new avenue to regulate the electrocatalytic performance of phthalocyanine molecules.

Biaxially-Strained Phthalocyanine at Polyoxometalate@Carbon Nanotube Heterostructure Boosts Oxygen Reduction Catalysis.

Iron phthalocyanine (FePc) with unique FeN4 site has attracted increasing interests as a promising non-precious catalyst. However, the plane symmetric structure endows FePc with undesired catalytic performance toward the oxygen reduction reaction (ORR). Here, we report a novel one-dimensional heterostructured ORR catalyst by coupling FePc at polyoxometalate-encapsulated carbon nanotubes (FePc-{PW12}@NTs) using host-guest chemistry. The encapsulation of polyoxometalates can induce a local tensile strain of single-walled NTs to strengthen the interactions with FePc. Both the strain and curvature effects of {PW12}@NT scaffold tune the geometric structure and electronic localization of FeN4 centers to enhance the ORR catalytic performance. As expected, such a heterostructured FePc-{PW12}@NT electrocatalyst exhibits prominent durability, methanol tolerance, and ORR activity with a high half-wave potential of 0.90 V and a low Tafel slope of 30.9 mV dec-1 in alkaline medium. Besides, the assembled zinc-air battery demonstrates an ultrahigh power density of 280 mW cm-2, excellent charge/discharge ability and long-term stability over 500 h, outperforming that of the commercial Pt/C+IrO2 cathode. This study offers a new strategy to design novel heterostructured catalysts and opens a new avenue to regulate the electrocatalytic performance of phthalocyanine molecules.

Photocatalytic activity of B-doped nano graphene oxide over hydrogenated NiO-loaded TiO2 nanotubes

A hydrogenated NiO-loaded anatase TiO2 with unique heterostructure nanotube arrays (denoted as H:(NiO/TiO2)) NTs were synthesized, followed by the attachment of boron-doped reduced nanographene oxide nanoparticles (B-nGO NPs) to form a vigorous composite photoelectrode B-nGO/H:(NiO/TiO2) NTs. The p-n junction created between p-type NiO and n-type TiO2 produces sufficient built-in electric field to facilitate the electron–hole pair separation and boost the interfacial electron transfer, subsequently a hydrogenation treatment to adjust the donor density and maximize the electron–hole separation. The microstructure characterization with synchrotron-based X-ray techniques straightened out that the created NiO oxygen vacancies can provide emptier d-orbitals to accept more photoexcited electrons. With the incorporation of B-nGO NPs, the partially replacement of C atoms of nGO by B atoms can form an electron–hole-rich configuration in the heterostructure to decrease the Fermi level, with a more rapid electron transfer toward TiO2 substrate during photocatalysis, which also confirmed by quantum-chemical calculations. The as-synthesized B-nGO/H:(NiO/TiO2) NTs exhibited a high photocurrent density (2.0 mA/cm2) and an effective photoconversion efficiency (2.07%) under simulated sunlight irradiation (AM1.5G, 100 mW/cm2). The eventuated photoconversion efficiency is 6 times enhanced with respect to the pristine TiO2, along with an impressive hydrogen evolution rate of 31 μmol/h/cm2. Moreover, the photocurrent durability test has confirmed the stability of B-nGO/H:(NiO/TiO2) electrode, with only a slight decay of <1% after continuous illumination for more than 4 h. Incident photon conversion efficiency spectra have revealed a boosted photo-response under visible light region (extended to ∼520 nm) with the synergistic attachment of NiO and B-nGO.

Cobalt-doping-induced ultrathin solid-electrolyte interphase construction and shuttle effect inhibition in Cu3PS4-carbon nanotube hybrid enabling superior potassium-ion storage

Ternary transition-metal phosphorus chalcogenides have intriguing properties as anodes for K-ion batteries, such as diverse compositions, abundant resources, high theoretical capacities, and multiplex redox reactions. However, they mostly suffer from intermediate polysulfides shuttling, huge volume variations, sluggish kinetics, and poor conductivity, leading to rapid decay of electrochemical performance. To efficiently exploit their advantages, we introduce a simple heteroatom transition-metal (Co, Fe, Ni) doping strategy to a Cu3PS4-carbon nanotube heterostructure for the first time. The doping of Co particles into Cu3PS4-carbon nanotube (CPSC/Co) hybrid concurrently alleviates volumetric changes, causes the formation of a thin solid-electrolyte interphase film, suppresses the dissolution of soluble potassium polysulfides into the electrolyte, hinders the agglomeration of discharging/recharging products, and boosts the reversibility of redox reactions during potassiation/depotassiation processes. The CPSC/Co hybrid thus delivers an excellent initial Coulombic efficiency (86.1%), outstanding cyclic stability (489 mAh g−1 after 300 cycles at 0.2 A g−1), and high rate capability (291 mAh g−1 at 2 A g−1). Our findings demonstrate that transition-metal doping can rationally modulate the morphology and composition of solid-electrolyte interphase films and alter the discharging/charging reactions in metal-ion batteries.

CdO Decorated with Polypyrrole Nanotube Heterostructure: Potent Electrocatalyst for the Detection of Antihistamine Drug Promethazine Hydrochloride in Environmental Samples.

In the realm of electrochemical sensor application, the development and fabrication of semiconducting metal oxides with the integration of conducting polymers for the trace-level detection of pharmaceutical medicines garnered considerable interest. Herein, we reported facile cadmium oxide decorated with polypyrrole nanotubes fabricated on a glassy carbon electrode (CdO@PPy/GCE) for efficient determination of antihistamine drug promethazine hydrochloride (PMH). The as-synthesized CdO@PPy composite was characterized by various analytical tools like X-ray powder diffraction, Fourier transform infrared spectroscopy, Raman spectroscopy, scanning electron microscopy, and X-ray photoelectron spectroscopy. Furthermore, the electrocatalytic activity of the modified electrode for PMH detection was examined by voltammetry and amperometric methods, and the modified electrode exhibited lower charge transfer resistance compared to the bare GCE. Under the optimized condition, the fabricated electrode shows a wide linear range (50-550 μM), better sensitivity (0.13 μAμM-1 cm-2), low detection limit (10.83 nM) (S/N = 3), and excellent selectivity and reproducibility toward PMH detection. Moreover, the modified GCE depicted eminent practical ability for PMH detection in lake water and pharmaceutical tablets.

Constructing BiOBr/TiO2 heterostructure nanotubes for enhanced adsorption/photocatalytic performance

The fabrication of heterostructure materials with the synergy of adsorption and photocatalysis is an effective strategy to promote the removal of organic pollutants. In this work, BiOBr/TiO2 nanotubes were successfully obtained to enhance the removal of organic pollutants from water via the synergy of adsorption and photocatalysis. The TiO2 nanotubes were prepared using waste foam as the primary raw material by impregnation calcination, and BiOBr nanosheets were grown on their surface by a simple solvothermal method. The BiOBr/TiO2 nanotubes have significantly enhanced separation efficiency of photo-generated carriers, synergistic adsorption, and photocatalytic decomposition compared with pure TiO2 nanotubes. The enhanced activity is mainly attributed to the growth of BiOBr nanosheets leading to a substantial increase of the specific surface area and the internal electric field between the heterojunction of BiOBr/TiO2. In addition, possible degradation pathways for organic pollutants are proposed based on trapping experiments, electron spin resonance spectrometer, and density functional theory calculations. Our work provides a promising strategy for combining the advantages of adsorption and photocatalytic technologies for environmental remediation, and we anticipate it will be of significant interest to researchers in environmental science, materials science, and chemical engineering.

NiCoP based carbon nanotube heterostructure for improved oxygen redox reaction kinetics in Li-O2 batteries

The design of ultra-stable cathode materials of Li-O2 batteries with excellent catalytic performance is very important and desirable. However, some problems such as sluggish electrochemical reaction kinetics and unwanted side reactions still remain challenging. Carbon materials own hierarchical porous structure which facilitates mass transport and accommodates discharge products but are not stable enough as cathode of Li-O2 batteries. Here in, we fabricated a unique NiCo bimetallic phosphide combined with carbon nanotube heterostructure (abbreviated as NiCoP/CNT) by hydrothermal method. Density functional theory (abbreviated as DFT) calculation demonstrates that bimetallic phosphide NiCoP/CNT delivered much better electrical conductivity, greater adsorption to reactants, and more electron transfer with discharge products Li2O2, compared to monometallic phosphides CoP and Ni2P. Therefore, NiCoP/CNT based cathode displayed low overpotential of 0.87 V at current of 100 mA g−1 with a fixed specific capacity of 1000 mAh g−1 and run steadily over 150 cycles under high current of 500 mA g−1 with a fixed specific capacity of 1000 mAh g−1. Furthermore, Ex-situ X-ray Photoelectron Spectroscopy and in-situ differential electrochemical mass spectroscopy proved the existence of intermediate products Li2-xO2. This approach provides a reference for designing and synthesis of bimetallic cathode in Li-O2 batteries.

Visible-Light-Driven Photocatalytic Degradation of Tetracycline Using Heterostructured Cu2O-TiO2 Nanotubes, Kinetics, and Toxicity Evaluation of Degraded Products on Cell Lines.

This study first reports on the tetracycline photodegradation with the synthesized heterostructured titanium oxide nanotubes coupled with cuprous oxide photocatalyst. The large surface area and more active sites on TiO2 nanotubes with a reduced band gap (coupling of Cu2O) provide faster photodegradation of tetracycline under visible light conditions. Cytotoxicity experiments performed on the RAW 264.7 (mouse macrophage) and THP-1 (human monocytes) cell lines of tetracycline and the photodegraded products of tetracycline as well as quenching experiments were also performed. The effects of different parameters like pH, photocatalyst loading concentration, cuprous oxide concentration, and tetracycline load on the photodegradation rate were investigated. With an enhanced surface area of nanotubes and a reduced band gap of 2.58 eV, 1.5 g/L concentration of 10% C-TAC showed the highest efficiency of visible-light-driven photodegradation (∼100% photodegradation rate in 60 min) of tetracycline at pH 5, 7, and 9. The photodegradation efficiency is not depleted up to five consecutive batch cycles. Quenching experiments confirmed that superoxide radicals and hydroxyl radicals are the most involved reactive species in the photodegradation of tetracycline, while valance band electrons are the least involved reactive species. The cytotoxicity percentage of tetracycline and its degraded products on RAW 264.7 (−0.932) as well as THP-1 (-0.931) showed a negative correlation with the degradation percentage with a p-value of 0.01. The toxicity-free effluent of photodegradation suggests the application of the synthesized photocatalyst in wastewater treatment.

Solid Solution MoS2−xTex with Reduced Lattice Change Compared to MoS2–MoTe2 Heterostructure for Enhanced Cycling Performance of Lithium‐Ion Batteries

Precursor PPY@MoS2@MoTe2 nanocomposites are successfully prepared to obtain a solid solution of MoS2−x Te x and a heterogeneous structure of MoS2–MoTe2 grown on one‐dimensional tubular carbon (ODTC) by heat treatment at different temperatures. The solid solution C@MoS2−x Te x –500 nanotubes have better electrochemical performance than that of C@MoS2–MoTe2 heterostructure nanotubes. And the calculation results show that lattice parameter change rate of heterostructure MoS2–MoTe2 is much higher than that of solid solution MoS2−x Te x . This indicates that solid solution C@MoS2−x Te x –500 nanotubes manifest a super structural stability, which may be attributed to internal defects alleviating the volume expansion caused by lithium‐ion intercalation. So it exhibits remarkable lithium storage performance with high capacity (1000.9 mAh g−1 at 1 A g−1 after 500 cycles).

Fe3+-Derived Boosted Charge Transfer in an FeSi4P4 Anode for Ultradurable Li-Ion Batteries.

Ion and electron transportation determine the electrochemical performance of anodes in metal-ion batteries. This study demonstrates the advantage of charge transfer over mass transport in ensuring ultrastable electrochemical performance. Additionally, charge transfer governs the quality, composition, and morphology of a solid-electrolyte interphase (SEI) film. We develop FeSi4P4-carbon nanotube (FSPC) and reduced-FeSi4P4-carbon nanotube (R-FSPC) heterostructures. The FSPC contains abundant Fe3+ cations and negligible pore contents, whereas R-FSPC predominantly comprises Fe2+ and an abundance of nanopores and vacancies. The copious amount of Fe3+ ions in FSPC significantly improves charge transfer during Li-ion battery tests and leads to the formation of a thin monotonic SEI film. This prevents the formation of detrimental LiP and crystalline-Li3.75Si phases and the aggregation of discharging/recharging products and guarantees the reformation of FeSi4P4 nanocrystals during delithiation. Thus, FSPC delivers a high initial Coulombic efficiency (>90%), exceptional rate capability (616 mAh g-1 at 15 A g-1), and ultrastable symmetric/asymmetric cycling performance (>1000 cycles at ultrahigh current densities). This study deepens our understanding of the effects of electron transport on regulating the structural and electrochemical properties of electrode materials in high-performance batteries.