hierarchically porous ysz hollow spheres with ultralowthermal stability of hollow ysz microspheres and
Fabrication of Novel Hierarchical β-Ni(OH)2 and NiO
Electrophoretic deposited Ni(OH)2-YSZ and NiO-YSZ nanocomposite coatings microstructural and electrochemical evaluation. Facile synthesis of porous NiO hollow microspheres and its electrochemical lithium-storage performance. Jian Wang Changwei Gong Mingang Zhang Liping Liang. Rational synthesis of hierarchically porous NiO hollow
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B.Ma Y.Li J.P.Zhao W.H.Xin "Novel structural functional films based on self-assembly template and electrodeposition Synthesis and characterization of porous Ni/YSZ films" Thin Solid Films 2009 517 . PDF link
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Advances in Porous Perovskites Synthesis and
For example a combination of BaMnO 3 porous nanorods and a thin carbon layer through a hydrothermal method produced remarkably improved OER/ORR activity and stability in comparison with bare BaMnO 3 nanorods. 62 As well Thanh and his workers reported the usage of a novel composite nanomaterial based on porous hollow LaNiO 3 spheres
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(PDF) In Tech Microwave hydrothermal and solvothermal
Inserted in (c) is the close-up of hollow nature for M-InP samples. With permission. Figure 10 .10The proposed formation mechanism for InP hollow spheres. With permission. Figure 11 .11SEM images of (a) KZnF3 (b) KMnF3 (c) KCoF3 and (d) KFeF3 synthesized by H-MW method. With permission.
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Journal of the European Ceramic Society Standard Journal
Improved thermal stability of ferro/piezo-electric properties of Mn-doped Pb(In 1/2 Nb 1/2 )O 3 -PbTiO 3 ceramics Mechanical behaviour of porous lanthanide oxide microspheres Experimental investigation and numerical simulations High-porosity mullite ceramic foams prepared by selective laser sintering using fly ash hollow spheres as raw
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A General Synthesis Strategy for Hierarchical Porous Metal
3.2. Synthesis of Metal Oxide Hollow Spheres. Figures 4(a) and 4(b) show the SEM images of the carbon-titania composite spheres before and after the thermal treatment at 450°C for 4 h and it can be seen that the coated carbon/TiO 2 composite spheres with monodispersed spherical shape were obtained indicating that the coating layer was uniform. There was a clear contrast between the edge
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Recent Progresses in Electrocatalysts for Water
Jul 28 2018 · The study of hydrogen evolution reaction and oxygen evolution reaction electrocatalysts for water electrolysis is a developing field in which noble metal-based materials are commonly used. However the associated high cost and low abundance of noble metals limit their practical application. Non-noble metal catalysts aside from being inexpensive highly abundant and environmental friendly
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Journal of The Electrochemical Society Volume 165 Number
The as-prepared MoS 2 nanosheets hierarchically porous graphitic carbon composite exhibits a high reversible capacity of 1027 mAh g −1 at 0.1 A g −1 a good rate capability of 857 mAh g −1 at 1 A g −1 and an excellent cycling stability (792 mAh g −1 after 500 cycles at 1 A g −1).
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Journal of the European Ceramic Society Standard Journal
Improved thermal stability of ferro/piezo-electric properties of Mn-doped Pb(In 1/2 Nb 1/2 )O 3 -PbTiO 3 ceramics Mechanical behaviour of porous lanthanide oxide microspheres Experimental investigation and numerical simulations High-porosity mullite ceramic foams prepared by selective laser sintering using fly ash hollow spheres as raw
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Materials Science and Engineering and Chemical Engineering
Materials Science and Engineering and Chemical Engineering Department. Materials Science and Engineering and Chemical Engineering. Department. Additive-free Li4Ti5O12 thick electrodes for Li-ion batteries with high electrochemical performance. Chemical precipitation of nickel nanoparticles on Ti (C N) suspensions focused on cermet processing.
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Lotus pollen derived 3-dimensional hierarchically porous
May 01 2016 · Hierarchically porous NiO microspheres with interconnected nano-pores were prepared with chemical bath deposition by using lotus pollens as bio-templates. The NiO microspheres thus derived have a specific surface area of 95.58 m 2 /g and the average pore size is 20.98 nm such a nanostructure is ideal for gas sensing.
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Electrophoretic deposition of biomaterials Journal of
Electrophoretic deposition (EPD) is attracting increasing attention as an effective technique for the processing of biomaterials specifically bioactive coatings and biomedical nanostructures. The well-known advantages of EPD for the production of a wide range of microstructures and nanostructures as well as unique and complex material
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Recent advances in graphene‐based materials for fuel cell
The obtained metal nanoparticles/N‐doped graphene hollow spheres showed superior ORR activity and stability than commercial 20 wt. Pt/C catalysts due to the well‐distributed metal nanoparticles and porous hybrid architectures. Electrodeposition is a controllable and template‐free approach to synthesize graphene‐supported electrocatalysts.
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Metal oxide nanoparticles and their applications in
May 20 2019 · Considering metal oxide nanoparticles as important technological materials authors provide a comprehensive review of researches on metal oxide nanoparticles their synthetic strategies and techniques nanoscale physicochemical properties defining specific industrial applications in the various fields of applied nanotechnology. This work expansively reviews the recent developments of
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A polymer based and template-directed approach towards
For the preparation of silica hollow spheres the ethanolic dispersion of PS/silica CS spheres is dried at 60 °C in a vacuum followed by thermal treatment in a furnace at 550 °C under air for 2 h. By this procedure a white powder of silica hollow spheres with an average diameter of 1090 (±15) as determined by TEM measurements is obtained.
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Fabrication of Hollow Inorganic Microspheres by Chemically
Hany M. AbdelDayem Basant G. Salib Fouad I. El-Hosiny Facile synthesis of hydrothermal stable hierarchically macro-mesoporous hollow microspheres γ-Al2O3-graphene oxide composite As a new efficient acid-base catalyst for transesterification reaction for biodiesel production Fuel 10.1016/j.fuel.2020.118106 277 (118106) (2020).
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Journal of The Electrochemical Society Volume 164 Number
The cyclic stability of LiNi 1/3 Co 1/3 Mn 1/3 O 2 /graphite cells is improved by using 2 vol. SL. Charge–discharge tests on graphite/Li and LiNi 1/3 Co 1/3 Mn 1/3 O 2 /Li cells show that the cyclic improvement of the full cell results from the contribution of SL on the enforced stability of both graphite anode and LiNi 1/3 Co 1/3 Mn 1/3 O 2
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Applied Surface ScienceAcademic Accelerator
Synthesis of hierarchically porous NiCo 2 S 4 core-shell hollow spheres via self-template route for high performance supercapacitors Srikanta Karmakar · Subrata Biswas · P. Kumbhakar · P. Kumbhakar Reduction-oxidation pretreatment enhanced catalytic performance of Co 3
Chat OnlineStructured Porous Materials via Colloidal Crystal
Xiangmei Liu Xin Du and Junhui He Hierarchically Structured Porous Films of Silica Hollow Spheres via Layer‐by‐Layer Assembly and Their Superhydrophilic and Antifogging Properties ChemPhysChem 9 2 () (2008).
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Advances in Porous Perovskites Synthesis and
For example a combination of BaMnO 3 porous nanorods and a thin carbon layer through a hydrothermal method produced remarkably improved OER/ORR activity and stability in comparison with bare BaMnO 3 nanorods. 62 As well Thanh and his workers reported the usage of a novel composite nanomaterial based on porous hollow LaNiO 3 spheres
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Fabrication of ceramic components with hierarchical porosity
Hierarchically porous alumina was obtained using either silica gel or PS microspheres as the macroporogen and stearic acid as the mesoporogen though the mesostructure consisted in a disordered pore arrangement 37 .This approach is useful in the synthesis of hybrid macro-mesoporous materials where an organic moiety is incorporated in the
Chat OnlineNanosheet-Assembled ZnFe2O4 Hollow Microspheres for High
Semiconductor oxides with hierarchically hollow architecture can provide significant advantages as sensing materials for gas sensors by facilitating the diffusion of target gases. Herein we develop a facile template-free solvothermal strategy combined with the subsequent thermal treatment process toward the successful synthesis of novel ZnFe2O4 hollow flower-like microspheres. The images of
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Hierarchically porous YSZ hollow spheres with ultralow
Hollow yttria-stabilized zirconia (YSZ) microspheres with a diameter of 1.2–5.1 μm and a wall thickness of about 125 nm were synthesized and their thermal stability was revealed for a hold
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Hierarchically Porous Zirconia Monolith Fabricated from
Porous yttria-stabilized zirconia (ZrO2-8 mol Y2O3 YSZ) ceramics with ultra-low thermal cond. (as low as 0.06 W/mK) could be fabricated by tert-Bu alc. (TBA)-based gel-casting process with low solid loadings of 10 and 15 vol . High porosity (52-76 ) and fine pores with av. pore size of 0.7-1.8 μm formed after sintering at °C.
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Frontiers Enhanced H2S Gas-Sensing Performance of
IntroductionWith the rapid development of industry the discharge of sulfide gas has been increasing in recent decades which results in severe air pollution. H2S as the typical representation of sulfide is a harmful and toxic acidic gas and widely used in various industries. Even at low concentrations it can cause hypoxia and seriously threatens the safety of human.
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Synthesis and characterization of ZrO2 hollow spheres
Li and Wang have achieved ultralow thermal conductivity of 0.030 W/ (m·K) at room temperature by molding and uniaxially coldpressing hierarchically porous YSZ hollow spheres with outer diameters of
Chat OnlineThermodynamics of Densification I Sintering of Simple
Equilibrium configurations for linear and closed arrays (rings and regular polyhedra containing a single pore) of identical particles (cylinders or spheres) were determined by minimizing the array s
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Nanosheet-Assembled ZnFe2O4 Hollow Microspheres for High
Semiconductor oxides with hierarchically hollow architecture can provide significant advantages as sensing materials for gas sensors by facilitating the diffusion of target gases. Herein we develop a facile template-free solvothermal strategy combined with the subsequent thermal treatment process toward the successful synthesis of novel ZnFe2O4 hollow flower-like microspheres. The images of
Chat OnlineRecent advances in graphene‐based materials for fuel cell
The obtained metal nanoparticles/N‐doped graphene hollow spheres showed superior ORR activity and stability than commercial 20 wt. Pt/C catalysts due to the well‐distributed metal nanoparticles and porous hybrid architectures. Electrodeposition is a controllable and template‐free approach to synthesize graphene‐supported electrocatalysts.
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Synthesis and applications of nanoporous perovskite metal
Huang et al. reported a citrate-modified EISA method using P123 and citric acid as surfactants to prepare hierarchically nanoporous La 1.7 Ca 0.3 Ni 1− x Cu x O 4− δ layered perovskite oxides and investigated as cathodes for Y 2 O 3-stabilized ZrO 2 (YSZ) anode-supported IT-SOFCs. 16 The results show that the hierarchically nanoporous La 1
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