Tianquan Lin

Chinese Academy of Sciences, Peping, Beijing, China

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Publications (44)304.03 Total impact

  • Tianquan Lin · Fengxin Liu · Feng Xu · Hui Bi · Yahui Du · Yufeng Tang · Fuqiang Huang ·
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    ABSTRACT: Flexible/stretchable devices for energy storage are essential for future wearable and flexible electronics. Electrochemical capacitors (ECs) is an important technology for supplement batteries in energy storage and harvesting field, but are limited by relatively low energy density. Herein, we report a superelastic foam consisting of few-layer carbon nanowalls made from natural cotton as a good scaffold to growth conductive polymer polyaniline for stretchable, lightweight and flexible all-solid-state ECs. As-prepared superelastic bulk tubular carbon foam (surface area ~950 m2/g) can withstand >90% repeated compression cycling and support >45,000 times its own weight but no damage. The flexible device has a high specific capacitance of 540 F/g in weight of the total electrode materials, a specific energy of 25.5 Wh/kg and a power density of 28.5 kW/kg and withstands 5,000 charging/discharging cycles.
    ACS Applied Materials & Interfaces 10/2015; 7(45). DOI:10.1021/acsami.5b07368 · 6.72 Impact Factor
  • Wenli Zhao · Guilian Zhu · Wei Zhao · Tianquan Lin · Fangfang Xu · Fu Qiang Huang ·
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    ABSTRACT: Transition-metal perovskite oxides possess rich functionalities in the fields of ferroelectrics, piezoelectrics, superconductors, dielectrics, fuel cells and photocatalysis. Nano-facet control of the cubic ATiO3 (A: a divalent cation) phase, a typical perovskite oxide, may result in new properties or phenomena not observable in the bulk material. Herein, we first report a puzzle-like 3D hierarchical structure constructed with K0.5La0.5TiO3 nanosheets. Surprisingly, K0.5La0.5TiO3 has a cubic symmetry similar to a SrTiO3 perovskite. The unusual phase is synthesized by a simple one-pot hydrothermal strategy without using any structure-directing agent. After modest acidification, the assembled 3D hierarchical structure is etched into a core-shell nanostructure which consists of a crystalline K0.5La0.5TiO3 core and an amorphous TiO2 shell. The acid-treated sample exhibits remarkably enhanced photocatalytic H2 production, which is over 60 times higher than the pristine sample.
    Dalton Transactions 10/2015; 44(42). DOI:10.1039/C5DT03468J · 4.20 Impact Factor
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    ABSTRACT: A facile, high yield ZnCl2/KCl molten-salt route is developed to fabricate black titania hexagonal nanosheets under atmospheric pressure and low temperature (400 °C). After post-annealing, the black titania possesses a tunable phase composition and enhanced visible light photocatalytic activity, accompanied with a controllable morphology transformation from hexagonal nanosheets to nanorods.
    RSC Advances 10/2015; 5(104). DOI:10.1039/C5RA17558E · 3.84 Impact Factor
  • Hui Bi · I-Wei Chen · Tianquan Lin · Fuqiang Huang ·
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    ABSTRACT: 3D architectures constructed from a tubular graphene network can withstand repeated >95% compression cycling without damage. Aided by intertubular covalent bonding, this material takes full advantage of the graphene tube's unique attributes, including complete pre- and post-buckling elasticity, outstanding electrical conductivity, and extraordinary physicochemical stability. A highly connected tubular graphene will thus be the ultimate, structurally robust, ultrastrong, ultralight material. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
    Advanced Materials 08/2015; 27(39). DOI:10.1002/adma.201502682 · 17.49 Impact Factor
  • Wenli Zhao · Wei Zhao · Guilian Zhu · Tianquan Lin · Fangfang Xu · Fu Qiang Huang ·
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    ABSTRACT: Black titania has attracted enormous attention due to its enhanced photocatalytic activity via increased solar absorption, but few studies extended the investigations to other wide band-gap titanates. Herein, strontium titanate (SrTiO3), a typical ternary titanate with more potential in photocatalysis, is selected as the target material. Black SrTiO3 nanocrystals were obtained by molten aluminum reduction of solution-processed pristine SrTiO3 in a two-zone furnace. Different from the black titania, black SrTiO3 nanocrystals are well-crystallized and have no core-shell structure. Substantial Ti3+ cations and oxygen vacancies are introduced into SrTiO3 after aluminum reduction, which results in enhanced absorption in both visible and near-infrared regions, and improved charge separation and transport. The photocatalytic hydrogen-generation and photoelectrochemical investigations demonstrate that black SrTiO3 exhibits an impressive improvement (2.5 times and 2.4 times at 1.23 VRHE, respectively) compared with white SrTiO3.
    CrystEngComm 08/2015; 17(39). DOI:10.1039/C5CE01263E · 4.03 Impact Factor
  • Hui Bi · Haining Huang · Feng Xu · Tianquan Lin · Hui Zhang · Fuqiang Huang ·
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    ABSTRACT: Carbon microtube/graphene (CMT/GR) hybrid structures were prepared from a natural biomass material (absorbent cotton) by the carbonization and continuous chemical vapour deposition (CVD) of graphene at 1200 °C. The graphene nanosheets deposited by CVD had a few-layer structure and were uniformly coated on the surface of the CMTs. The CMT/GR composite had a hollow tubular structure, a specific surface area of about 312 m2 g-1 and was highly hydrophobic (contact angle about 128°). The CMT/GR hybrid acted as a thermally conductive supporting framework and organic octadecanoic acid (OA) was easily impregnated into the CMT/GR structure by capillary forces. The CMT/GR/OA composite had a thermal conductivity of about 0.69 W m-1 K-1 at a CMT/GR loading fraction of about 10 wt%, which is about 4.3 times larger than that of OA (about 0.16 W m-1 K-1). The CMT/GR/OA composite had a high heat storage capacity of about 174 J g-1, very close to the value of OA (about 186 J g-1) and showed good thermal reliability even after 500 melting/freezing cycles. This method produces novel shape-stabilized phase change materials for use in thermal energy storage applications and has given new insights into the design and preparation of CMT/GR hybrid structures from natural resources. This journal is
    Journal of Materials Chemistry A 08/2015; 3(36). DOI:10.1039/C5TA05115K · 7.44 Impact Factor
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    ABSTRACT: To utilize visible-light solar energy to meet environmental and energy crises, black TiO2 as a photocatalyst is an excellent solution to clean polluted air and water and to produce H2. Herein, black TiO2 with a crystalline core–amorphous shell structure reduced easily by CaH2 at 400 °C is demonstrated to harvest over 80 % solar absorption, whereas white TiO2 harvests only 7 %, and possesses superior photocatalytic performances in the degradation of organics and H2 production. Its water decontamination is 2.4 times faster and its H2 production was 1.7 times higher than that of pristine TiO2. Photoelectrochemical measurements reveal that the reduced samples exhibit greatly improved carrier densities, charge separation, and photocurrent (a 4.5-fold increase) compared with the original TiO2. Consequently, this facile and versatile method could provide a promising and cost-effective approach to improve the visible-light absorption and performance of TiO2 in photocatalysis.
    ChemCatChem 08/2015; 7(17). DOI:10.1002/cctc.201500488 · 4.56 Impact Factor
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    ABSTRACT: Supercapacitors suffer either from low capacitance for carbon or derivate electrodes or from poor electrical conductivity and electrochemical stability for metal oxide or conducting polymer electrodes. Transition metal nitrides possess fair electrical conductivity but superior chemical stability, which may be desirable candidates for supercapacitors. Herein, niobium nitride, Nb4N5, is explored to be an excellent capacitive material for the first time. An areal capacitance of 225.8 mF cm−2, with a reasonable rate capability (60.8% retention from 0.5 to 10 mA cm−2) and cycling stability (70.9% retention after 2000 cycles), is achieved in Nb4N5 nanochannels electrode with prominent electrical conductivity and electrochemical activity. Faradaic pseudocapacitance is confirmed by the mechanistic studies, deriving from the proton incorporation/chemisorption reaction owing to the copious +5 valence Nb ions in Nb4N5. Moreover, this Nb4N5 nanochannels electrode with an ultrathin carbon coating exhibits nearly 100% capacitance retention after 2000 CV cycles, which is an excellent cycling stability for metal nitride materials. Thus, the Nb4N5 nanochannels are qualified for a candidate for supercapacitors and other energy storage applications.
    07/2015; DOI:10.1002/advs.201500126
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    ABSTRACT: Black TiO2, with increased solar light absorption and enhanced photocatalytic and photoelectrochemical (PEC) performance, has attracted enormous attention, stimulating us to explore the blackening of other oxide semiconductors for enhanced properties. Here, we report the fabrication of black nanostructured Nb2O5 and its enhanced PEC property for the first time. We successfully prepare oxygen-deficient black Nb2O5 nanochannels, which contain considerable amount of oxygen vacancies (Nb4+ sites) serving as shallow donors. The black Nb2O5 exhibits strong visible and infrared light absorption, which can absorb 75.5% solar energy superior to 5.7% for pristine Nb2O5. The PEC performance of black Nb2O5 photoanode is significantly enhanced with a relatively large photocurrent of 1.02 mA cm-2 and high applied bias photon-to-current efficiency (ABPE) of 0.345%, in comparison with the poor performance of pristine Nb2O5 (0.084 mA cm-2 photocurrent and 0.056% ABPE). These results indicate that black Nb2O5 is a promising material for PEC application and solar energy utilization.
    04/2015; 3(22). DOI:10.1039/C5TA01544H
  • Hui Bi · Houlei Cui · Tianquan Lin · Fuqiang Huang ·
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    ABSTRACT: A novel architecture of graphene wrapped copper-nickel (Cu-Ni) nanospheres (NSs)/graphene film was proposed to be TCO- and Pt-free counter electrode (CE) with high electrocatalytic activity for dye-sensitized solar cells (DSSCs). The novel architecture CE is composed of highly conductive graphene film, Cu-Ni alloy NSs and the wrapping graphene on the surface of alloy NSs. The graphene film as an electrically conductive layer was synthesized by chemical vapor deposition (CVD) on the insulating SiO2 substrate, and graphene wrapped Cu-Ni alloy catalyst NSs on the graphene film were in-situ formed by the reduction of Cu-Ni acetate and graphene growth using CVD. The graphene wrapped Cu-Ni NSs/graphene film CE shows much superior electrocatalytic activity, compared with graphene film, and the power conversion efficiency of 5.46% was achieved in DSSC devices, which is close to that of Pt/FTO electrode (6.19%). Therefore, the novel architecture of graphene wrapped Cu-Ni NSs/graphene film CE may be used as Pt- and TCO-free CEs for low-cost, high performance DSSCs.
    Carbon 04/2015; 91. DOI:10.1016/j.carbon.2015.04.051 · 6.20 Impact Factor
  • Fuqiang Huang · Dongyun Wan · Hui Bi · Tianquan Lin ·

    11/2014: pages 217-244;
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    Haonan Wang · Tianquan Lin · Guilian Zhu · Hao Yin · Xujie Lü · Yanting Li · Fuqiang Huang ·
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    ABSTRACT: Colored titania has attracted enormous attentions due to its visible light absorption and wide range of applications. Here, we demonstrate an effective approach to obtain colored titania with enhancing solar absorption by introducing disorder in the surface of titania through Al reduction. As prepared black TiO2−x possesses solar energy absorption up to 88%. The recombination centers of light-induced electrons and holes are reduced in acid solution, which ensures the excellent photocatalytic activity of the black TiO2 −x in the photo-oxidation of organic molecules in water.
    Catalysis Communications 11/2014; 60. DOI:10.1016/j.catcom.2014.11.004 · 3.70 Impact Factor
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    ABSTRACT: Three-dimensional elastic macroscopic graphene network (3D-GN) is prepared with the assistance of porous SiO2 ceramic substrates by using ambient pressure chemical vapor deposition, which is suitable for thermal management application. The free standing elastic macroscopic 3D-GN possesses excellent electrical, mechanical and thermal transfer properties.
    09/2014; 2(43). DOI:10.1039/C4TA03801K
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    Mi Zhou · Hui Bi · Tianquan Lin · Xujie Lü · Dongyun Wan · Fuqiang Huang · Jianhua Lin ·
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    ABSTRACT: Graphene/ceramic composites are proposed by directly depositing graphene on the insulating Al2O3 particles by chemical vapor deposition without any metal catalysts. Carbothermic reduction occurring at the Al2O3 surface is vital during the initial stage of graphene nucleation and the graphene sheet can connect with neighboring sheets to completely cover Al2O3 particles. The quality and layer number of graphene on Al2O3 can be finely tailored by changing the growth temperature and gas ratio. Graphene coated Al2O3 (G-Al2O3) composites are used as effective fillers of stearic acid (SA) to increase the thermal transport property. By the optimization of the layer number of graphene, size of Al2O3 particles and ratio of G-Al2O3/SA in a quantitative, their thermal conductivities significantly increase up to 11 folds from 0.15 to 1.65 W m−1 K−1. The great improvement is attributed to the high thermal transfer performance of graphene and excellent wettability between graphene and SA. When the G-Al2O3/SA composites with the graphene coated porous Al2O3 foam, the thermal conductivity further reaches to 2.39 W m−1 K−1, and the corresponding latent heat is 38 J g−1. It demonstrates the potential applications of graphene in thermal transport and thermal energy storage devices.
    Carbon 08/2014; 75:314–321. DOI:10.1016/j.carbon.2014.04.009 · 6.20 Impact Factor
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    ABSTRACT: Black titania nanotube arrays are prepared for the first time by the melted aluminium reduction of pristine anodized and air-annealed titania nanotube arrays. The black titania nanotubes with substantial Ti3+ and oxygen vacancies exhibit an excellent photoelectrochemical water-splitting performance due to the improved charge transport and separation and the extended visible light response. An impressive applied bias photon-to-current efficiency of 1.20% is achieved.
    05/2014; 2(23). DOI:10.1039/C4TA00176A
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    ABSTRACT: Direct growth of graphene on Al2O3 film is successfully achieved assisted with NiAl2O4 film on a SiO2 substrate by chemical vapor deposition at 800 °C. The Ni particles are first uniformly separated out on the substrate, and play an important role in capturing carbon atoms and accelerating the nucleation to grow high quality graphene rooting on insulating Al2O3 film. The thickness of graphene films can be tuned from two layers to few layers (<10) by changing growth time. The continuous graphene films exhibit extremely excellent electrical transport properties with a sheet resistance of down to 18.5 Ω sq−1. The graphene/Ni/Al2O3/SiO2 is used as the counter electrode of dye sensitized solar cell which achieves a photovoltaic efficiency of 7.62%.
    Carbon 05/2014; 71:20–26. DOI:10.1016/j.carbon.2013.12.064 · 6.20 Impact Factor
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    ABSTRACT: Nonmetal-doped black titania is achieved in a core-shell structure by a two-step synthesis. The nonmetal dopants in amorphous TiO2-x shells decrease e-h recombination centers, and more than 6.6 at.% N further improves solar energy absorption from 65% up to 85%. The photocatalytic H-2 generation of the N-doped black titania is 15.0 mmol h(-1) g(-1) under 100 mW cm(-2) of full-sunlight and 200 mmol h(-1) g(-1) under 90 mW cm(-2) of visible-light irradiation, superior to TiO2-x and reported titania photocatalysis.
    Energy & Environmental Science 03/2014; 7(3):967-972. DOI:10.1039/c3ee42708k · 20.52 Impact Factor
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    ABSTRACT: We report a new rapid household microwave method to successfully grow graphene on h-BN flakes without using any catalysts. We obtained a novel uniform multi-level matrix of vertical graphene sheets on h-BN flakes. The unique structure possessed outstanding electron conductivity and thermal properties (29.1 W m-1 K-1).
    ACS Applied Materials & Interfaces 02/2014; 6(5). DOI:10.1021/am405689r · 6.72 Impact Factor
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    Mi Zhou · Hui Bi · Tianquan Lin · Xujie Lü · Fuqiang Huang · Jianhua Lin ·
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    ABSTRACT: Directional heat transfer can provide an efficient way for thermal management in thermal transfer, thermal energy storage, etc. A novel growth method is proposed to synthesize continuous graphene films on insulating substrates by Ni-assisted chemical vapor deposition (CVD) at relatively low temperature down to 800 °C. Uniformly dispersed Ni nanoparticles on ceramic substrates play an important role of capturing carbon atoms and accelerating the nucleation to grow high quality graphene rooted on insulating ceramic substrates (anodic aluminum oxide, cordierite). The graphene species consist of 1D isolated graphene tubes coated on AAO, which can act as the media for directional thermal transport. The graphene/Ni/cordierite composite contains an interconnected macroporous graphene framework with a low sheet electrical resistance down to 8.6 Ω sq−1 and thermal conductivity of 4.17 W m−1 K−1. The porous graphene/Ni/cordierite composite can hold phase change materials (wood's alloy) to construct efficient thermal energy storage devices due to its high thermal conductivity, which can be used as heat sinks in thermoelectric devices. This work displays the great potential of CVD direct growth of graphene on insulating porous substrates for directional heat conduction, thermal management and thermoelectric applications.
    01/2014; 2(7). DOI:10.1039/C3TA14325B
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    ABSTRACT: Anatase TiO2 is one of the most important energy materials, but suffers from poor electrical conductivity. Nb-doping has been considered as an effective way to improve its performance in the applications of photocatalysis, solar cells, Li batteries and transparent conducting oxide films. Here, we report the further enhancement of electron transport in Nb-doped TiO2 nanoparticles via pressure-induced phase transitions. The phase transition behavior and influence of Nb-doping in anatase Nb-TiO2 are systematically investigated by in situ synchrotron X-ray diffraction and Raman spectroscopy. The bulk moduli are determined to be 179.5, 163.3, 148.3 and 139.0 GPa for 0, 2.5, 5.0 and 10.0 mol% Nb-doped TiO2, respectively. The Nb-concentration-dependent stiffness variation is demonstrated that the sample with higher Nb concentration has lower stiffness. In situ resistance measurement reveals an increase of 40% in conductivity of quenched Nb-TiO2 compared to the pristine anatase phase. The pressure-induced conductivity evolution is discussed detailedly in terms of the packing factor model, which provides a direct evidence for the rationality of packing factor correlated with electron transport in semiconductors. Such pressure-treated Nb-doped TiO2 with unique properties surpassing those in anatase phase hold great promise for energy-related applications.
    Journal of the American Chemical Society 12/2013; 136(1). DOI:10.1021/ja410810w · 12.11 Impact Factor

Publication Stats

766 Citations
304.03 Total Impact Points


  • 2011-2015
    • Chinese Academy of Sciences
      • Graduate School
      Peping, Beijing, China
  • 2011-2013
    • Peking University
      • • College of Chemistry and Molecular Engineering
      • • National Laboratory of Rare Earth Material Chemistry and Application
      Peping, Beijing, China