Hollow Nanosphere Structure Research Articles

Improving confinement and redox kinetics of polysufides through hollow NC@CeO2 nanospheres for high-performance lithium-sulfur batteries

Lithium-sulfur batteries are regarded as next generation energy storage systems because of their high theoretical specific capacity and low cost. However, the polysulfide shuttle effect, low electronic conductivity of sulfur/lithium sulfides and slow redox kinetics of polysulfide conversion still limit their practical application. Herein, we design a hollow nanosphere structure with CeO2 shell/ultrathin nitrogen-doped carbon shell as highly efficient sulfur host for lithium-sulfur batteries. The unique structure not only offers physical entrapment for sulfur species by CeO2/carbon shells, but also provides strong chemical adsorption and activation sites for chemical adsorption and catalytic conversion of polysulfides through CeO2 nanoparticles. Moreover, the unique hollow structure offers enough space for volume variations of sulfur during charge/discharge process and facilitates fast electron/ion transport to continuously activate active material, therefore improving the electrochemical performances of lithium-sulfur batteries. By combining these advantages, the obtained NC@H-CeO2/S cathodes exhibit high reversible capacity (1348 mAh g−1 at 0.2 C), excellent rate capability (548 mAh g−1 at 5 C) and superior cycle stability (632 and 458 mAh g−1 at 2 and 5 C after 500 cycles, respectively). Moreover, the cathodes with high sulfur loading of 3.5 mg cm−2 remain excellent rate capability and cycling stability. This work provides a new strategy to the design of advanced cathode materials for high-performance lithium-sulfur batteries.

Synthesis of NiO hollow nanospheres via Kirkendall effect and their enhanced gas sensing performance

Abstract Based on the Kirkendall effect, a facile calcination method was used to synthesize p-type semiconductor NiO hollow nanoparticles. The composition, structure, morphology and specific surface of NiO hollow nanospheres were characterized by means of XRD, TEM and BET and their gas sensing properties were studied. It was found that the hollow NiO nanospheres have certain gas sensing properties to methanol, ethanol and n-butanol. The results showed that NiO-4 prepared at 500 °C for 4 h had excellent sensitivity and selectivity to n-butanol gas at the optimized operating temperature of 240 °C (1000 ppm of n-butanol, Rg/Ra = 9.0). The sensing mechanism of responses is proposed considering the unique material structure. Thin and permeable shell is the key factor to improve the n-butanol reaction, which is beneficial to complete electron consumption and effective gas diffusion. This strategy offers a facile way for the design of hollow nano-materials and may also extend to prepare other metal oxides such as CoO, SnO2 or Bi2O3 hollow nanostructures.

A green and energy-saving microwave-based method to prepare magnetic carbon beads for catalytic wet peroxide oxidation

A green and energy-saving method was proposed to fabricate magnetic carbon (Fe@CS) beads (diameter: 0.5–1 mm) as Fenton-like catalyst and to simultaneously regenerate saturated activated carbon. Chitosan (CS) was used as the precursor of carbon, and tremendous heat produced during the regeneration of activated carbon by microwave irradiation (600 W) was utilized for carbonization within 2 min. The effects of microwave irradiation time and iron/CS mass ratio on Fe@CS were evaluated through various characterization methods, such as iron content, phase, microstructure, degree of graphitization, and associated Fenton-like catalytic activity. Fe3O4 and slight Fe(0) were the main iron species in Fe@CS beads. The microstructure of Fe@CS beads presented a hollow nanosphere structure and the Fe3O4 nanoparticles were uniformly embedded in the carbon layer. The Fe@CS/H2O2 Fenton-like system managed to efficiently degrade acid orange II even in a wide pH range of 3–9. Hydroxyl radical was proven by electron spin resonance spectroscopy as the dominant active species. The crystal or catalytic activity of Fe@CS hardly changed after five cycles. Moreover, the catalytic activity was enhanced after each cycle because the surface bound iron and increased iron leaching (<2 mg/L in first four cycles). The stability could be restored (decreased iron leaching) easily through a convenient regeneration process. In conclusion, this study proposed a novel and facile method for preparing reusable heterogeneous Fenton-like particle catalysts, providing valuable insights for the green, energy-saving and reusable applications of catalysts.

Hollownano-MgF2 supported catalysts: Highly active and stable in gas-phase dehydrofluorination of 1,1,1,3,3-pentafluoropropane

In this work, different metal ions (Al3+, Cr3+, Fe3+, Co3+, Zn2+, Ni2+) were supported on a hollow nano-MgF2 to catalyze gas-phase dehydrofluorination of 1,1,1,3,3-pentafluoropropane (HFC-245fa) to 1,3,3,3-tetrafluoropropene (HFO-1234ze). The support, hollow nano-MgF2 prepared by a polyol mediated sol-gel method possesses large surface area (127 m2 g−1) and mesoporous structure (12 nm) with weak Lewis acidity after calcination at 350 °C. The catalysts were characterized by TEM, XRD, BET, NH3-TPD, EDX, pyridine-IR and XPS. The physicochemical characterization showed via simple impregnation with different metal ions, the textural and surface acidic properties of hollow nano-MgF2 were tuned, while the hollow nanosphere structure were maintained. The introduction of Al on hollow nano-MgF2 has resulted in higher catalyst activity and selectivity to desired product, trans-1,3,3,3-tetrafluoropropene (HFO-1234ze(E)) than the other catalysts due to its largest surface area and numerous Lewis acid sites. The combination of the results of acidic properties and activity testing showed that the number of medium acid sites appeared to have a linear influence on the activity of hollow nano-MgF2 supported catalysts. The highest activity with HFC-245fa conversion of 54% and 82% selectivity to HFO-1234ze(E) was obtained at 280 °C on hollow nano-MgF2 supported 9 mol.% Al catalyst (9%Al/nano-MgF2), which also exhibited almost constant catalytic performances over 200 h. Surface Al species of Al/nano-MgF2 catalysts were identified, including Al(OH)xFy/AlOxFy, β-AlF3 and α-AlF3. The relative abundance of Al(OH)xFy/AlOxFy species was found to be highly correlated with the catalyst activity. The catalytic performances of 9%Al/nano-MgF2 are significantly higher than those of traditional AlF3 and fluorinated Cr2O3 for gas-phase dehydrofluorination reactions.

Facile preparation of hollow-nanosphere based mesoporous g-C3N4 for highly enhanced visible-light-driven photocatalytic hydrogen evolution

Mesoporous g-C3N4 consisting of hollow nanospheres (MCNHN) was prepared via a facile vapor-deposition method. It demonstrated an excellent visible-light photocatalytic H2 evolution activity of 22.3 times greater than bulk g-C3N4. The special hollow nanosphere structure, increased specific surface area and modified crystalline enabled MCNHN to realize stronger light harvest and better photoinduced electron-hole separation, which leaded to highly improved photocatalytic performance. The proposed method and setup are easy to be established, and have the potential for preparing nanoscale g-C3N4 with other tailored nanostructures.

Facile Synthesis of Nitrogen‐Doped Mesoporous Hollow Carbon Nanospheres for High‐Performance Supercapacitors

AbstractWe report the facile preparation of nitrogen‐doped mesoporous hollow carbon nanospheres (N‐MHCNS) by directly carbonizing hollow polypyrrole nanospheres that are derived from in situ polymerization. Here, we use a novel soft template (PMMA‐PBMA‐PMAA) as the core. At 700 °C, the obtained N‐MHCNSs (denoted N‐MHCNS700) show superior electrochemical performance. In 1 M HCl electrolyte, N‐MHCNS700 exhibits a capacitance as high as 275.5 F g−1 at a current density of 1 A g−1 and a high rate capability, retaining 54.4 % of the initial capacitance at the current density of 20 A g−1. In addition, the specific capacitance of N‐MHCNS700 is approximately 100 % retained at a current density of 10 A g−1 after 5000 cycles, indicating amazing stable cycling performance. The excellent electrochemical performance can be derived from the amorphous graphitic carbon, hollow nanosphere structure, mesoporous properties, and nitrogen doping effect.

One-pot synthesis of layered double hydroxide hollow nanospheres with ultrafast removal efficiency for heavy metal ions and organic contaminants

Herein, Mg/Fe layered double hydroxide (MF-LDH) hollow nanospheres were successfully prepared by a one-step thermal method. After the thermal treatment of MF-LDH nanospheres at 400 °C, the MF-LDH was converted into the corresponding oxide, Mg/Fe layered double oxide (MF-LDO), which maintained the hollow nanosphere structure. The MF-LDO hollow nanospheres exhibited excellent adsorption efficiency for both As(V) and Cr(VI), showing 99% removal within 5 min and providing maximum removal capacities of 178.6 mg g−1 [As(VI)] and 148.7 mg g−1 [Cr(VI)]. Moreover, it met the maximum contaminant level requirements recommended by World Health Organization (WHO); 10 ppm for As(V) and 50 ppm for Cr(VI) in 10 and 20 min, respectively. Furthermore, Au nanoparticles were successfully introduced in the MF-LDO hollow nanospheres, and the products showed a conversion rate of 100% for the reduction of 4-nitrophenol into 4-aminophenol within 5 min. It is believed that these excellent and versatile abilities integrated with a facile synthetic strategy will facilitate the practical application of this material in cost-effective wastewater purification.

Superior ethylene glycol oxidation electrocatalysis enabled by hollow PdNi nanospheres

Engineering binary Pd-based nanocatalysts with desirable morphology and structure has been of vital significance for the fabrication and modification of outstandingly excellent electrocatalysts. To embody the electrocatalysts with outstanding catalytic activity, it should be supposed to combine both the morphology advantages and the bifunctional effects. We herein report our significant advances in designing the unique binary PdNi hollow nanospheres with highly exposed active sites and tunable compositions. Owing to the bifunctional and electronic effect between Pd and Ni, as well as the unique hollow nanosphere structure, the unique PdNi hollow nanospheres exhibit outstandingly excellent catalytic activity towards ethylene glycol electrooxidation with the mass activity of 3152 mA mg−1, which is 4.28-fold enhancement than that of the commercial Pd/C. The findings in this work may be favorable for greatly enhancing the catalytic activity by constructing the catalysts with maximized utilization of noble metals.

Gas bubble templated synthesis of Mn3O4-embedded hollow carbon nanospheres in ethanol flame for elastic supercapacitor

With unique templates of sulphur-based gas bubbles in ethanol flame, the hollow carbon nanospheres, embedded with Mn3O4 quantum dots in the margin regions, are quickly synthesized on co-generated nanocarbon supporter on an elastic titanium foil substrate. The fabrication is just carried out by combustion in flame and anneal in air. When used as supercapacitor electrode, the electrode reveals large activity, high cyclic and elastic stability owing to its special structure. The mass specific capacitance of this nanosphere-based electrode is 316 F g−1 at a scan rate of 2 mV s−1, which is 94.7% larger than that of the electrode without nanosphere decoration. Furthermore, the capacitance retention of nanosphere-based electrode reaches 82.4% after 2000 charge-discharge cycles, and it is 78.3% even if the electrode is continuously vibrated 36000 cycles. These indicate the flame combustion method is effective, which has potential to be applied in synthesizing extensive materials in hollow nanosphere structure for electronic devices.

Cellulose‐Derived Hollow Carbonaceous Nanospheres from Rice Husks as Anode for Lithium‐Ion Batteries with Enhanced Reversible Capacity and Cyclic Performance

AbstractDisordered carbons are widely used as anode materials for lithium‐ion batteries due to their stable cycle performance, high specific capacity and negative redox potentials. Among them, as an environmental friendly renewable source, biomass has attracted much attention for its application in the preparation of disordered carbon. We report a novel carbonaceous material with interconnected hollow nanosphere structure which used cellulose extracted from rice husk (RH) as a precursor and prepared through hydrothermal carbonization and high temperature calcination. When used as anodes for lithium‐ion batteries, the first discharge specific capacity is as high as 1040 mAhg−1 at a rate of 0.2 C and the reversible specific capacity stabilized at 489 mAhg−1 after 100 cycles. The novel disordered nanostructure material displays superior Lithium‐ion battery performance with large reversible capacities, excellent cyclic performance, and outstanding rate capability, highlighting the importance of hollow interconnected structure for maximum utilization of electrochemically active for energy storage applications in high‐performance lithium‐ion batteries.

In situ synthesis of C-doped TiO2@g-C3N4 core-shell hollow nanospheres with enhanced visible-light photocatalytic activity for H2 evolution

Developing photocatalysts with high charge separation and transfer efficiency remains a key challenge for photocatalytic water-splitting reaction. In this work, a facial approach was explored to successfully realize the in situ growth of g-C3N4 on the surface of C-doped TiO2 hollow nanospheres (C-TiO2). The as-obtained heterogeneous photocatalyst, C-TiO2@g-C3N4 (TCN), presented core-shell hollow nanosphere structure. Systematic studies disclose that the TCN photocatalysts exhibit remarkably enhanced visible-light photocatalytic activity for water splitting to produce H2 compared with the pristine C-TiO2 and g-C3N4. The TCN-2 photocatalyst (the weight ratio of initial urea and C-TiO2 is 2:1) presents the highest H2 generation rate of 35.6μmolg−1h−1, which is 22.7 and 10.5 times higher than that of C-TiO2 and g-C3N4, respectively. The enhanced photocatalytic performance can be attributed to the formation of the heterojunction between the two semiconductors, which effectively promotes the separation of photo-generated carriers. Meanwhile, the intimate contact between the C-TiO2 and g-C3N4 resulted from the in situ growth greatly improves the separation and transfer efficiency of photo-generated carries. Besides, the enhancement in the utilization efficiency of light energy due to the unique hollow structure also exhibits a positive contribution.

Enhanced Electrochemical and Photocatalytic Performance of Core-Shell CuS@Carbon Quantum Dots@Carbon Hollow Nanospheres.

A controlled structural morphology, high specific surface area, large void space, and excellent biocompatibility are typical favorable properties in electrochemical energy storage and photocatalytic studies; however, a complete understanding about this essential topic still remains a great challenge. Herein, we have developed a new type of functionalized carbon hollow-structured nanospheres based on core-shell copper sulfide@carbon quantum dots (CQDs)@carbon hollow nanosphere (CHNS) architecture. This CuS@CQDs@C HNS is accomplished by a simple, scalable, in situ single-step hydrothermal method to produce the material that can be employed as an electrode for electrochemical energy storage and photocatalytic applications. Impressively, the CuS@CQDs@C HNS nanostructure delivers exceptional electrochemical energy storage characteristics with high specific capacitance (618 F g-1 at a current density of 1 A g-1) and an excellent rate capability with an extraordinary capacitance (462 F g-1 at current density of 20 A g-1) and long cycle life (95% capacitance retention after 4000 cycles). Further, the proposed photocatalyst exhibited superior photocatalytic activity under solar light due to the efficient electron transfer, which was revealed by photoluminescence studies. Such superior electrochemical and photocatalytic performance can be ascribed to the mutual contribution of CuS, CQDs, and CHNS and unique core-shell architecture. These results exhibit that the core-shell CuS@CQDs@C HNS nanostructure is one of the potential candidates for supercapacitors and photocatalytic applications.

Gelatin-assisted synthesis of ZnS hollow nanospheres: the microstructure tuning, formation mechanism and application for Pt-free photocatalytic hydrogen production

Nano-sized hollow spheres with tunable microstructures are urgently needed for their applications in advanced fields. The ZnS hollow spheres reported previously have usually required a complex multi-step process, and/or large size and/or less tunability in the microstructure. Here, a simple gelatin-assisted hydrothermal reaction of Zn(OAc)2 and thiourea was developed for the synthesis of ZnS hollow nanospheres. The size of the hollow spheres could be controlled below 100 nm with good homogeneity. The presence of gelatin is essential to decrease the size of ZnS particles and to form hollow structures. Only solid spheres with a large size were prepared in the absence of gelatin. The structure of hollow nanospheres could be regulated by altering the reaction parameters. Typically, the size of voids increases with prolonged reaction time. Also, the grain size of the hollow spheres increased with increasing reaction temperature (from about 3 nm to 10 nm) accompanied by a decrease in shell thickness. The results indicated that the hollow structure was formed through an “Ostwald ripening” process. The ZnS hollow nanospheres were used as catalyst for photocatalytic hydrogen production without additional co-catalyst. The maximum H2 production rate reached was 340 μmol h−1 (about 6.8 mmol h g).

Influence of two different template removal methods on the micromorphology, crystal structure, and photocatalytic activity of hollow CdS nanospheres

Hollow cadmium sulfide (CdS) nanospheres of about 260 nm average diameters and about 30 nm shell thickness can be easily synthesized via a sonochemical process, in which polystyrene (PS) nanoparticles were employed as templates. In order to remove the PS templates, both etching and calcination were applied in this paper. The influence of the two different template removal methods on the surface micromorphology, crystal structure, and photocatalytic activity of hollow CdS nanospheres was carefully performed a comparative study. Results of X-ray diffraction, scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray, FT-IR, thermogravimetric analysis, Brunauer–Emmett–Teller, diffused reflectance spectra, and decolorization experiments showed that the different template removal methods exhibited a significant influence on the surface micromorphology, crystal structure, and photocatalytic activity of hollow CdS nanospheres. The CdS hollow nanospheres as-prepared by etching had pure cubic sphalerite structure, higher –OH content, less defects and exhibited good photocatalytic activity for rhodamine-B, Methylene Blue and methyl orange under UV–vis light irradiation. However, CdS hollow nanospheres obtained by calcination with a hexagonal crystal structure, less –OH content, more defects have shown worse photocatalytic activity. This indicated that surface micromorphology and crystalline phase were mainly factors influencing photocatalytic activity of hollow CdS nanospheres.

Fabrication of the TiN-Ag Double-Shell Hollow Nanosphere Structure As the Highly Sensitive Substrate

Surface plasmon resonance (SPR) effect has been intensively studied in recent years due to its wide applications in sensing or optical regimes, such as surface-enhance Raman scattering (SERS) for molecular detection 1, 2, plasmonic optical tweezers3 and so on. It has been well accepted that the noble metals, such as Ag and Au, especially Ag, are the ideal plasmonic materials in SERS detection 4. But, Ag generally exhibits poor chemical and thermal stability, which would deteriorate its SERS activity5. So, alternative plamonic materials or passivation strategy were often proposed to resolve those issues. TiN, besides its good chemical stability, high melting point, and high hardness as other metal nitrides, also exhibits a metal-like optical properties in the visible and longer wavelengths6, 7 and thus might be considered as a potential plasmonic material. In this work, the surface modification on Ag hollow nanosphere (HNS) arrays was carried out by coating a thin layer of TiN, which presents high and stable sensitivity on molecular detection, including R6G and b-agonists. Theoretically and experimentally, it has been founded that the TiN coating layer can effectively manipulate the local field distribution and intensity near the Ag HNS, as well as the multiple plasmonic resonances on the composite hollow structure.8 Further Raman characterizing indicated that the multiple coupling effect between the plasmonic cavities and the charge-transfer process between the TiN/Ag shells enable the substrate to be a good SERS substrate with intensively enhanced local filed and Raman activity comparing with the bare Ag HNS arrays.

Pd Nanoparticles Decorated N-Doped Graphene Quantum Dots@N-Doped Carbon Hollow Nanospheres with High Electrochemical Sensing Performance in Cancer Detection.

The development of carbon based hollow-structured nanospheres (HNSs) materials has stimulated growing interest due to their controllable structure, high specific surface area, large void space, enhanced mass transport, and good biocompatibility. The incorporation of functional nanomaterials into their core and/or shell opens new horizons in designing functionalized HNSs for a wider spectrum of promising applications. In this work, we report a new type of functionalized HNSs based on Pd nanoparticles (NPs) decorated double shell structured N-doped graphene quantum dots (NGQDs)@N-doped carbon (NC) HNSs, with ultrafine Pd NPs and "nanozyme" NGQDs as dual signal-amplifying nanoprobes, and explore their promising application as a highly efficient electrocatalyst in electrochemical sensing of a newly emerging biomarker, i.e., hydrogen peroxide (H2O2), for cancer detection. Due to the synergistic effect of the robust and conductive HNS supports and catalytically active Pd NPs and NGQD in facilitating electron transfer, the NGQD@NC@Pd HNS hybrid material exhibits high electrocatalytic activity toward the direct reduction of H2O2 and can promote the electrochemical reduction reaction of H2O2 at a favorable potential of 0 V, which effectively restrains the redox of most electroactive species in physiological samples and eliminates interference signals. The resultant electrochemical H2O2 biosensor based hybrid HNSs materials demonstrates attractive performance, including low detection limit down to nanomole level, short response time within 2 s, as well as high sensitivity, reproducibility, selectivity, and stability, and have been used in real-time tracking of trace amounts of H2O2 secreted from different living cancer cells in a normal state and treated with chemotherapy and radiotherapy.

Synthesis of Fluorinated SnO2 Hollow Nanospheres and Their Improved Photocatalytic Performance

Fluorinated SnO2 hollow nanospheres (HS) were synthesized via a solvothermal treatment of stannous fluoride in the presence of hydrogen peroxide. These nanospheres with diameters from 60[Formula: see text]nm to 100[Formula: see text]nm were composed of small nanoparticles with rutile phase. A small amount of fluorine ions were observed to be adsorbed on the surface of SnO2 physically. The introduction of polyethylene glycol 200 (PEG 200) in the reaction system could obviously improve the crystallinity and specific surface areas of the product while maintaining the hollow nanosphere structure. Furthermore, the as-prepared SnO2 sample (HS-PEG) showed a much enhanced photocatalytic activity with 100% degradation of Rhodamine B (RhB) within only 40[Formula: see text]min under UV light irradiation.

Pt–Co and Pt–Ni hollow nanospheres supported with PEDOT:PSS used as high performance counter electrodes in dye-sensitized solar cells

Binary alloy platinum–cobalt (Pt–Co) and platinum–nickel (Pt–Ni) hollow nanospheres are prepared by using a simple solution reaction method. Poly(3,4-ethylenedioxy thiophene):polystyrene sulfonate (PEDOT:PSS) as supported layer further enhance the binary platinum alloy electrochemical properties. The prepared binary platinum alloys are observed with hollow nanosphere structure. The cyclic voltammogram and electrochemical impedance spectroscopy measurement indicate that Pt–Co and Pt–Ni hollow nanospheres on PEDOT:PSS (PC-PP and PN-PP) electrodes have high conductivity and catalytic performance. Under simulated white solar light irradiation with intensity of 100mWcm−2 (AM 1.5), the dye-sensitized solar cells (DSSCs) based on PCPP and PNPP counter electrodes achieve power conversion efficiencies of 9.02% and 8.23%, respectively, which are higher than the efficiency for the DSSC based on Pt counter electrode (7.96%).

MnO2-wrapped hollow graphitized carbon nanosphere electrode for supercapacitor

MnO2-wrapped hollow graphitized carbon nanospheres (MnO2/HGC) electrodes are prepared by a cooperative template wrapping method. hollow Graphitized carbon nanospheres (HGC) are firstly obtained by carbonizing phenolic resin followed by etching the SiO2 template, then the MnO2 ultrathin nanoplates are coated on the surfaces of the HGC nanospheres through a redox reaction between KMnO4 and HGC nanospheres. The as-prepared MnO2/HGC hollow nanospheres possess porous structure and large specific surface area (∼230m2g−1). The specific capacitances of MnO2/HGC nanosphere electrodes with different mass ratios of MnO2 to HGC are about 340–380Fg−1 at a scan rate of 5mVs−1 in Na2SO4 solution, and shows relative good cycling performance of the initial capacitance after 1000 cycles. The good specific capacitance is ascribed to the novel hollow nanosphere structure, which possesses high surface-to-volume ratio, and makes it easy for the mass diffusion of electrolyte and transmission of ions and electrons and also maintains the mechanical integrality.

Preparation of Y2O3 Hollow Spheres and Low Frequency Damping Properties of Rubber Composite Reinforced with Y2O3 Hollow Spheres

Poly(methyl methacrylate)(PMMA) spheres were firstly prepared through dispersion polymerization, then with which as sacrifice template, PMMA/Y(OH)CO3 composite microspheres were prepared by homogeneous precipitation technique. Thirdly, Y2O3 hollow spheres were obtained by calcination of PMMA/Y(OH)CO3 at elevated temperature, and finally Y2O3 hollow shperes reinforced butyl rubber composites were fabricated. The structure and morphology of the Y2O3 hollow nanospheres were characterized by means of Fourier transform infrared spectroscopy(FTIR), scanning electron microscope(SEM), transmission electron microscope(TEM), X-ray photoelectron spectrum(XPS), X-ray diffraction(XRD) and thermogravimetry(TG). The results show that hollow spheres composed of Y2O3 particles of face-centered cubic crystallorgraphic structure, and their diameter is about 1 μm with a thin shell thickness about 80 nm. The hollow microspheres and powders of Y2O3 as filler were added respectively into butyl rubber to prepare butyl rubber composites. It follows that the butyl rubber composites with addition of Y2O3 hollow spheres rather than that of Y2O3 powders exhibited better damping properties with larger loss factors by frequencies such as 8, 18, 28, 50, 65 and 90 Hz.