Modification Of Graphite Research Articles

Modification of graphite to increase reaction rate in styrene/graphite in situ polymerization system

Modification of graphite to increase reaction rate in styrene/graphite in situ polymerization system

Lead Oxide Modified Graphite Electrodes for Electrochemical Degradation of Congo Red Dye in Aqueous Solution

Congo red (CR) dye in aqueous solution was decolorized by an electrolysis process using graphite (G) and lead dioxide modified graphite (G/PbO2) as anode materials in a two-electrode batch reactor. The electrodeposited lead dioxide film was characterized by scanning electron microscopy coupled with energy dispersive spectroscopy (SEM-EDS) and atomic force microscopy (AFM). Comparative performance assessment of the anode materials under different process parameters reveals that the lead dioxide film improved the electrocatalytic effect of the modified electrode. The adjustment of the deposition bath pH from 1.5 to 3 resulted in the formation of uniform agglomeration and disappearance of particulates, while addition of sodium dodecyl sulphate (SDS) gave better adhesion of film to substrate. The degradation rate (DR) observed for the G/PbO2 (1.0 × 10−2 cm2) was higher than that of the unmodified electrode (0.87 × 10−2 cm2). Increase in applied voltage from 25 to 30 V at 23 mA/mm2 improved the degradation efficiency (DE) from 84.7% to 91.32% for graphite and from 96.09% to 99.98% for G/PbO2, with 0.5 M KCl. The prime degradation time of 45 min was recorded for graphite anode which reduced to 30 min for G/PbO2 anode. CR degraded to compounds with smaller molecular weight and better stability as observed from GC-MS analysis and computational total energy study, respectively. The modification of the graphite electrode surface by electrodepositing PbO2 film improved the DE and the prime reaction time. These findings present significant suggestions for the design of advanced electrodeposition and electrocatalytic systems for wastewater treatment applications.

Improved Rheological Properties and Lubricity of Drilling Fluids at Extreme Temperatures and Pressures Using Graphene Oxide and Flowzan

Summary The use of graphene-based lubricants in water-based drilling fluids (WDFs) has emerged as a promising avenue for enhancing their tribological properties, particularly under high-temperature (HT) conditions, by incorporating inorganic-material-based additives. For this study, we used a green and adsorption-based approach to prepare highly-dispersed graphite for modification, utilizing a cationic surfactant. Our research demonstrated the effective dispersion of the prepared graphite in water, characterized by low sedimentation rates and small contact angles in distilled water. The concentration dosage of Flowzan® on graphite was determined to be 0.02 g/g. To assess the effectiveness of modified graphite as a lubricating additive in water-based drilling, we conducted rheological studies and measured viscosity coefficients. The results revealed a significant decrease in the viscosity coefficient of the drilling fluid by 68% at 300°F when incorporating 0.05% modified graphene. Furthermore, the study investigated the thickness of six WDFs under high-temperature, high-pressure (HTHP) conditions. The addition of 3% graphene expansion resulted in a notable reduction in the volume of HTHP liquid filtrate by up to 30% compared with the control. These experimental findings underscore the advantageous effects of nanoparticle addition on properties such as lubricity, rheology, fluid loss, and thermal stability, potentially revolutionizing the drilling process. In addition to evaluating the performance of modified graphite, we analyzed its primary, crystalline, and morphological properties using various techniques, including particle size tests, zeta potential tests, Fourier transform infrared (FTIR), powder X-ray diffraction (XRD), and scanning electron microscopy (SEM). These analyses elucidated the lubrication mechanism, demonstrating that graphite modification primarily occurred through physical adsorption without altering the crystal structure. These insights provide valuable guidance for the development of high-performance WDFs tailored to endure the challenges of drilling operations.

One facile route to prepare high‐performance radiation resistant EPDM rubber composites through graphite modification technology

AbstractModification and improvement of aging resistance in nuclear power environment for the ethylene‐propylene‐diene (EPDM) rubber has been attracting the attention of scientists. In this article, graphite modified EPDM composites (ultrafine graphite [UG]/EPDM) were prepared, and effect of graphite with sizes of 13, 2.6, and 1.3 μm on the processability, vulcanization parameters, mechanical properties, stability of radiation aging of EPDM composites were investigated, respectively. The results showed that EPDM rubber was an irradiated crosslinked polymer. The Mooney viscosity and crosslinking density of EPDM gradually increased with increasing graphite content under the effect of physical and chemical cross‐linking of graphite. The lamellar structure of graphite particles in the rubber matrix is beneficial to improvement of the mechanical properties and aging resistance of the EPDM composites and play a reinforcing role, and the sp2 hybrid structure of graphite can trap and quench free radicals, delayed the irradiation aging of EPDM. UG/EPDM composites irradiation stability was improved with increasing graphite dispersion in EPDM matrix. Under the cumulative irradiation dose of 1000 kGy, the tensile strength of blank sample and UG‐2.6 μm−10 decreased by 51.1% and 17.7%, respectively, and the hardness increased by 8.7% and 4.9%, respectively. The energy storage modulus and the corresponding glass transition temperature (Tg) of UG/EPDM composites enhanced with graphite, while the thermal stability of the composites was improved.

Hydrothermal modification of natural graphite with KCl: different roles of K+ and Cl− in promoting the electrochemical performance of Li-ion batteries

Hydrothermal modification of natural graphite with KCl: different roles of K+ and Cl− in promoting the electrochemical performance of Li-ion batteries

Electrochemical intercalation of anions into graphite: Fundamental aspects, material synthesis, and application to the cathode of dual-ion batteries.

In this review, fundamental aspects of the electrochemical intercalation of anions into graphite have been first summarized, and then described the electrochemical preparation of covalent-type GICs and application of graphite as the cathode of dual-ion battery. Electrochemical overoxidation of anion GICs provides graphite oxide and covalent-fluorine GICs, which are key functional materials for various applications including energy storage devices. The reaction conditions to obtain fully oxidized graphite has been mentioned. Concerning the application of graphite for the cathode of dual-ion battery, it stably delivers about 110 mA h g-1 of reversible capacity in usual organic electrolyte solutions. The combination of anion and solvent as well as the concentration of the anions in the electrolyte solutions greatly affect the performance of graphite cathode such as oxidation potential, rate capability, cycling properties, etc. The interfacial phenomenon is also important, and fundamental studies of charge transfer resistance, anion diffusion coefficient, and surface film formation behavior have also been summarized. The use of smaller anions, such as AlCl4 -, Br- can increase the capacity of graphite cathode. Several efforts on the structural modification of graphite and development of electrolyte solutions in which graphite cathode delivers higher capacity were also described.

One-Step Synthesis of Alkali Metal-Hydroxyl Double Modified Graphite Phase Carbon Nitride and Photocatalytic Degradation of Phenolic Compounds

In this work, potassium ion-hydroxyl double modified graphite phase carbon nitride (KCN–OH) was synthesized in one step by alkali hydrothermal (AH) method. The as-prepared catalysts were characterized by XRD, FT-IR, UV–Vis, N2 adsorption, SEM, XPS, PL, ESR, TPD and EIS. The introduction of potassium ion causes the reduced crystal size, increased specific surface area and promoted electron–hole separation efficiency of as-prepared catalyst. The hydroxyl group not only further improves the electron–hole separation efficiency but, as the electron donor group, can also make stronger interaction between catalyst and acidic phenolic compounds. The photocatalytic degradation of phenol was investigated under visible light. The results show that the phenol degradation rate constant of KCN–OH is 0.22 h[Formula: see text] under visible light, which is over 3.7 and 2.0 times higher than that of neat g-C3N4 and single hydroxyl-modified g-C3N4. KCN–OH also displays outstanding catalytic and structural stability. The possible reaction mechanism is discussed in this paper.

Surface Decoration of TiC Nanocrystals onto the Graphite Anode Enables Fast-Charging Lithium-Ion Batteries.

To significantly reduce the charging time of commercial lithium-ion batteries (LIBs), it is essential to control the surface properties of graphite anodes because the charging process involves sluggish interfacial kinetics between graphite and the electrolyte. For the effective surface modification of graphite, herein we demonstrate the surface decoration with titanium carbide (TiC) nanocrystals onto graphite particles via a simple wet-coating process. The high electrical conductivity, low Li+ adsorption energy, and small surface diffusion barrier of the TiC nanocrystals facilitate fast Li+ adsorption and migration in the graphite surface by reducing the overpotential upon the charging process. The feasibility of the TiC nanocrystal-decorated graphite (TiC@AG) anode is thoroughly examined with an in-depth understanding of the interfacial reaction mechanism. Furthermore, the full-cell with a commercial cathode (LiNi0.8Co0.1Mn0.1O2) and TiC@AG anode demonstrates an impressive capacity retention (94.5%) after 300 cycles under fast-charging condition (3 C-charging and 1 C-discharging) without any sign of Li plating. The charging time of the TiC@AG full-cell was estimated at 16.2 min (80% of state of charge), which is substantially shorter than that of the artificial graphite full-cell. Our findings offer practical insights into the design principles of advanced graphite anodes, contributing to the realization of fast-charging LIBs.

The Modification of Graphite in Lithium-Ion Batteries and its Applications

Lithium-ion batteries (LIB) dominate the battery market because of their excellent performance. However, the potential safety hazard of lithium-ion batteries is still regarded as an important factor hindering their further development. Lithium-ion batteries are highly flammable. In fact, there have been multiple cases of explosions caused by lithium-ion battery which result in severe burns over the past decades. Other concerns including recyclability and low power density produces obstacles to this technology. Graphite is a material with excellent conductivity. It has many outstanding electronic and mechanical properties. The basic and applied research on graphite has become a current frontier and hotspot. Therefore, graphite is also used to modify lithium-ion batteries. Especially using graphite to modify the anode material greatly improves its original performance. This work firstly introduced the physical and chemical properties of graphite. Subsequently, how graphite can enhance the efficiency LIB was introduced. A detailed introduction was given concerning with graphite modified anode materials. This work will promote the application of graphite in lithium-ion batteries.

Ultrafast transformation of natural graphite into self-supporting graphene as superior anode materials for lithium-ion batteries

Graphite possesses remarkable potential as an anode material for lithium-ion batteries, thanks to its superb electrical conductivity and eco-friendliness. Nevertheless, challenging issues persist, such as its low maximum theoretical lithium storage capacity and constraints associated with the regular layered structure, which impede its practical application and advancement. In this regard, we proposed a novel approach to enhance the energy storage performance of lithium-ion batteries, involving the modification of natural graphite through irradiation with a high-current pulsed electron beam (HCPEB). Microscopic observations revealed that during the in-situ transformation of graphite particles into self-supporting graphene nanosheets, the high temperature generated by HCPEB irradiation led to the formation of structural defects, including Stone Wales and double vacancy defects. Consequently, the modified natural graphite electrode (particle size 12 μm) exhibited a reversible capacity of 420.4 mAh/g at 0.2C and maintained 94.5% of its reversible capacity after 500 cycles. In comparison to unmodified graphite (particle size 12 μm), the SEI film displayed enhanced stability, significantly improving cycling performance. These findings demonstrated that the defective graphene nanosheet structure enhances lithium storage activity sites, enlarges layer spacing, and enhances lithium storage performance. This study presents an efficient and environmentally friendly method for producing superior anode materials for lithium-ion batteries.

Modification of micro-crystalline graphite and carbon black by acetone, toluene, and phenol.

The chemical interactions of two types of graphite and two types of carbon black (CB) with acetone, toluene, and phenol were studied in order to evaluate the influence of chemical treatment on the structure and morphology of the carbon phases. The experimental treatment of carbon phases was carried out at room temperature for 1 hour. The chemical and phase composition were studied by x-ray photoelectron (XP) and Raman spectroscopies, while the morphology and structure were determined by powder x-ray diffraction, as well as transmission electron microscopy techniques. To shed light on the most probable explanation of the observed results, we performed simulations and calculations of the binding energies of acetone, toluene, and phenol with model carbon phases: a perfect graphene sheet and a defective graphene sheet containing various structural defects (vacancies as well as zigzag and armchair edges). Simulations show that all non-covalent and most covalent coupling reactions are exothermic, with acetone coupling having the higher calorimetric effect. Based on the results of the simulations and the XP spectroscopy measurements, the probable reactions taking place during the respective treatments are outlined. The conducted studies (both theoretical and experimental) show that the treatment of graphite powders and CB with acetone, toluene, or phenol can be used as a preliminary stage of their modification and/or functionalization, including their conversion into graphene-like (defective graphene, reduced graphene oxide, and/or graphene oxide) phases. For example, the treatment of SPHERON 5000 with acetone significantly facilitates their subsequent modification with laser radiation to graphene-like phases.

Structure optimization and electrolyte regulation boost K-storage performance of graphite anode

Modified graphite (MG) with rough edges and reduced crystal particles is developed via ball-milling treatment for commercializable K-storage anode. Importantly, rational electrolyte regulation significantly improves the reaction dynamics as well as reversibility of potassiation/depotassiation behaviors, resulting into a high and stable reversible capacity of 277 mA h g−1 at 200 mA g−1 after 250 cycles in the optimized 3 M KFSI/EC + DEC electrolyte. The enhanced K+-solvents interaction with aggregates (AGGs)-rich solvated structures is revealed to be responsible for the excellent K-storage performance. Furthermore, electrolyte flammability evaluation confirms the remarkably suppressed flammability of the optimized 3 M KFSI/EC + DEC, providing enough security for practical applications of PIBs.

Surface modification of ET-10 graphite by helium irradiation and preoxidation: Morphology, microstructure and chemical states

The synergistic effect of neutron irradiation and oxidising impurities inside reactors has a considerable influence on the modification and performance of nuclear graphite. We investigated the modification of the surface morphology, structure and functional groups of preoxidised ET-10 graphite by He+ beam irradiation. A distinct lamellar structure after high-temperature preoxidation indicates the depletion of the binders. Raman parameters |q−1| and ID1/(ID1+ID2) were calculated to reflect the variation in defect and crystallite size, and the crystallite size (La) of ET-10 graphite was reduced from 12.66 nm to 1.4 nm after irradiation. The high-temperature oxidation, on the one hand, increased La by the annealing recovery of defects; on the other hand, led to faster surface oxidation, destroying crystals and reducing La. Furthermore, changes in the electronic structure and elemental composition were qualitatively and quantitatively measured by X-ray photoelectron spectroscopy. The irradiation reduction occurred mainly at 5 × 1014 He+/cm2, where the ratio of O-containing groups was restored from the unirradiated 47% to 27%, which was close to the level of the graphite matrix. Lastly, while previous researches suggest that nuclear stopping power has a similar effect. The irradiation reduction is found to be related the energy transferred by the electron interaction combined with SRIM simulations.

Anode materials sustainable recycling from spent lithium-ion batteries: An edge-selectively nitrogen-repaired graphene nanoplatelets

With the large-scale retirement of power batteries every year, the recycling and reusing of spent graphite have become an urgent task that has been given full attention. Nevertheless, designing a simple and low-cost recycling method of spent graphite is still a huge challenge. Herein, we found that defects and polar functional groups formed in situ in scrap graphite can be reshaped and modified by ball milling for high-value utilization. Specifically, remolded graphite recycled from spent lithium-ion batteries (LIBs) was employed as a high-value anode material for the first time. The N-derived remolded graphite exhibited remarkably enhanced electrochemical performance. As a result, the remolded graphite can deliver a high capacity of 343.8 mA h g −1 after 200 cycles at 0.5 C, and also display an outstanding rate capability (a capacity of 231.9 mA h g −1 is achieved at 2 C). Furthermore, the performance index of remolded graphite is better than that of artificial battery-grade commercial graphite, as well as meet the requirements of reutilization of spent graphite. The present work provides a promising strategy for the high-value application of spent graphite. • A simple ball-milling recycling technology is proposed to remold spent graphite anode scrap powder from spent LIBs. • The inherent properties of the spent graphite provide a prerequisite for the modification of graphite. • The remolded graphite exhibits enhanced lithium-ion storage behavior than commercial graphite.

(Digital Presentation) The Influence of Post-Processing on Dynamic Hydrogen Bubble Templated Bi Modified Graphite Felt in Vanadium Redox Flow Batteries

Graphite felts (GFs) are a widely used electrode material in vanadium redox flow batteries (VRFB) by virtue of their high porosity, chemical stability, low cost and good electrical conductivity. However, the hydrophobicity and the low electrochemical activity are the main obstacles for the use of pristine GF in VFRB applications. To tackle such problems, bismuth has been reported to be a promising catalyst for V2+/ V3+ redox reactions [1]. Post-processing parameters, such as air/vacuum drying, exposure time to water during rinsing step, etc. can impact the performance of the Bi modified GFs, which will correspondingly affect morphology, purity and distribution of the catalyst leading to different kinetics. These parameters are rarely studied and reported in the literature.In this work, an effective synthesis method, the so-called dynamic hydrogen bubble template (DHBT) electrodeposition, has been employed for the deposition of high surface area Bi on GFs [2]. This method involves galvanostatic deposition of the metal at high current densities which is accompanied by hydrogen evolution, and the hydrogen bubbles serve as dynamic template for metal deposition. Cyclic Voltammetry (CV) and Electrochemical Impedance Spectroscopy (EIS) were carried out in a half-cell setup. The kinetics of Bi modified GFs could be obtained qualitatively by using Friedl’s method [3], in which the charge transfer resistance and double layer capacitance from impedance measurements are correlated, and quantitatively from the CV fitting routine in Polarographica developed by Tichter et al. [4]. The kinetic trends derived from both methods are consistent, with Polarographica exhibiting specific quantitative values as compared to Friedl’s method.It has been found that the post processing and drying conditions after Bi electrodeposition affect the performance of the GFs significantly. Therefore, the impacting parameters including electrochemically active surface area, Bi distribution, impurity, etc. are further studied by excluding certain parameters under different conditions. By the two previously mentioned methods of obtaining kinetics and the characterization of SEM and XRD, it is demonstrated that long time exposure to water during the rinsing step combined with vacuum drying after synthesis will promote a relatively higher kinetics than the other post-processing treatments on the Bi modified GFs.Full-cell tests with a VRFB test bench have been carried out. According to the polarization curves and charge-discharge curves at 25 mA/cm2 and 50 mA/cm2, the electrodes with Bi show pronounced advantages over pristine GF, namely, lower overpotential, lower charge voltage, higher discharge voltage and higher electrolyte utilization. Long term cycling will be compared and discussed in detail as well.[1] B. Li et al., “Bismuth Nanoparticle Decorating Graphite Felt as a High-Performance Electrode for an All-Vanadium Redox Flow Battery,” Nano Lett., vol. 13, no. 3, pp. 1330–1335, Mar. 2013, doi: 10.1021/nl400223v.[2] M. Yang, “Fern-shaped bismuth dendrites electrodeposited at hydrogen evolution potentials,” J. Mater. Chem., vol. 21, no. 9, p. 3119, 2011, doi: 10.1039/c0jm03213a.[3] J. Friedl and U. Stimming, “Determining Electron Transfer Kinetics at Porous Electrodes,” Electrochimica Acta, vol. 227, pp. 235–245, Feb. 2017, doi: 10.1016/j.electacta.2017.01.010.[4] T. Tichter et al., “Real-space simulation of cyclic voltammetry in carbon felt electrodes by combining micro X-ray CT data, digital simulation and convolutive modeling,” Electrochimica Acta, vol. 353, p. 136487, Sep. 2020, doi: 10.1016/j.electacta.2020.136487.

Experimental study of the thermal properties of a fatty acid-modified graphite composite phase change material dispersion system

In this study, modified graphite (MEG) with a strong affinity for fatty acids was synthesized via the ultrasonic dispersion method in myristic acid ethanol solution and used as a heat conduction additive. A fatty acid composite phase change material (PCM) with excellent comprehensive thermal performance was prepared with the resultant MEG. Scanning electron microscopy, Fourier transform infrared spectroscopy, and X-ray diffraction showed that the synthesis of MEG and composite PCM was due to the physical adsorption and no chemical reaction was involved. The results of thermal conductivity and differential scanning calorimetry measurements showed that the thermal conductivity of the composite PCM increased by 139.3 % after adding 2 wt% MEG. Interestingly, the latent heat of the synthesized composite was between 182.6 and 187.1 J/g after 200 heat storage and release cycles, which is comparable to that of the pure fatty acid eutectic. Thermal cycling, thermogravimetric analysis, and the thermal conductivity changes of the upper and lower layers of the composite PCM demonstrate that the composite has good dispersion stability and thermal cycling stability. Moreover, these results may provide feasible strategies for successfully synthesizing new high-performance composite PCMs and further improving energy storage efficiency.

Correlation between multiple chemical modification strategies on graphene or graphite and physical/electrical properties

Chemical modifications of carbon based materials are often used to improve their dispersion in polymer matrix and increase the nanocomposite electrical properties. This work concerned the control of graphene and graphite physical and chemical structure thanks to different chemical modification (oxidation, copolymer functionalization and reduction). This article exposes a complete study of different chemical modifications impact on graphene and graphite microstructure, chemical structure, and its relative electrical property. A first oxidation step by Hummers or nitric acid method was necessary to further graft a copolymer of methyl methacrylate and hydroxyethyl methacrylate via a versatile “grafting onto” covalent functionalization. Hummers’ and nitric acid methods were considered as strong and soft oxidation treatments, respectively. Reduction steps were also performed using hydrazine or thermal treatments to recover high electrical conductivity. Chemical modifications of graphene and graphite were characterized by X-ray diffraction, Raman spectroscopy, thermogravimetric analysis, Fourier transform infrared spectroscopy and pyrolysis–gas chromatography–mass spectrometry. Moreover, a new method for the electrical measurement of the modified particles is presented in this work. This measurement requires adhesive tape and an electrical circuit with a diode using the four probes protocol, it allows the evaluation of the electrical conductivity of the graphene and graphite samples in powder state. Finally, the electrical resistances of the different graphene and graphite submitted to all the chemical treatments are reported.

Preparation and Properties of Indium Ion Modified Graphite Felt Composite Electrode

Iron-chromium redox flow batteries (ICRFBs) have the advantages of high safety, long cycle life, flexible design, and low maintenance costs. Polyacrylonitrile-based graphite felt composite material has good temperature resistance, corrosion resistance, large surface area and excellent electrical conductivity, and is often used as the electrode material of ICRFB, but its chemical activity is poor. In order to improve the activity of the graphite felt electrode, In3+ was used for modification in this paper, and the modified graphite felt was used as the electrode material for iron-chromium batteries. The structure and surface morphology of the modified graphite felt were analyzed by the specific surface area analyzer and scanning electron microscope; the electrochemical impedance spectroscopy and cyclic voltammetry experiments were carried out on the electrochemical workstation to study the electro catalytic activity of In3+ modified graphite felt and its performance in ICRFBS. The results show that the graphite felt electrode modified with a concentration of 0.2 M In3+ was activated at 400°C for 2 h, and its surface showed a lot of grooves, and the specific surface area reached 3.889 m2/g, while the specific surface area of the untreated graphite felt was only 0.995 m2/g significantly improved. Electrochemical tests show that the electrochemical properties of graphite felt electrodes are improved after In3+ modification. Therefore, the In3+ modified graphite felt electrode can improve the performance of ICRFB battery, and also make it possible to realize the engineering application of ICRFB battery.

Lubricity and Rheological Properties of Highly Dispersed Graphite in Clay-Water-Based Drilling Fluids

Improving the tribological characteristics of water-based drilling fluids by adding graphene-based lubricants has garnered attention because of the potential for a range of inorganic-material-based additives at high temperature. In this study, we constructed a green and simple adsorption approach to prepare highly dispersed graphite using a cationic surfactant for graphite modification. The findings demonstrated that the prepared graphite was highly dispersed in water and had a low sedimentation rate and small contact angle in distilled water. The concentration dosage of cetyltrimethylammonium chloride (CTAC) on graphite was 0.02 g/g. We evaluated the performance of the modified graphite as a lubricated additive in water-based drilling through a rheological study and viscosity coefficient measurement. The results showed that the viscosity coefficient of drilling fluid with 0.05% modified graphite was reduced by 67% at 180 °C. We proved that the modified graphite can significantly improve the lubrication performance of drilling fluid. Furthermore, we revealed the lubrication mechanism by analyzing the chemical structural and crystalline and morphological features of graphite through a particle size test, zeta potential test, Fourier transform infrared (FTIR) spectroscopy, X-ray powder diffraction (XRD), and scanning electron microscopy (SEM) measurements. The results indicated that the modification of graphite by CTAC only occurs through physical adsorption, without changing the crystal structure. These findings provide a reference for the development of high-performance water-based drilling fluids.

Surface modification of graphite by low‐temperature oxygen plasma and SnO2FeO(OH) coatings for lithium storage

AbstractGraphite powders are exfoliated by Li+/Na+ co‐intercalation to obtain exfoliated graphite, and then the surfaces are modified with oxygen‐containing functional groups by oxygen plasma etching to alter the chemical properties of surface. For advanced graphite anodes of lithium ions batteries, here fine‐structured SnO2FeO(OH) coatings are constructed on the oxidated surfaces of graphite by an electrostatic adsorption method. Electrochemical tests show that surface modified graphite has higher capacity and better rate performance than pristine graphite, and the specific discharge capacity is reached to 400 mAh g−1 at a current of 37.2 mA g−1 (0.1C), which is increased by 27.8% compared with the pristine graphite anode.