Zheng Xu

ORCID: 0000-0002-2271-9089
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Research Areas
  • X-ray Diffraction in Crystallography
  • Crystallization and Solubility Studies
  • Magnetism in coordination complexes
  • Metal-Organic Frameworks: Synthesis and Applications
  • Quantum Dots Synthesis And Properties
  • Metal complexes synthesis and properties
  • Fullerene Chemistry and Applications
  • Crystallography and molecular interactions
  • Graphene research and applications
  • Microfluidic and Bio-sensing Technologies
  • Lanthanide and Transition Metal Complexes
  • Copper-based nanomaterials and applications
  • ZnO doping and properties
  • Crystal structures of chemical compounds
  • Carbon Nanotubes in Composites
  • Conducting polymers and applications
  • Supercapacitor Materials and Fabrication
  • Acoustic Wave Phenomena Research
  • Advancements in Battery Materials
  • Orbital Angular Momentum in Optics
  • Organometallic Complex Synthesis and Catalysis
  • Ultrasound and Cavitation Phenomena
  • Porphyrin and Phthalocyanine Chemistry
  • Gold and Silver Nanoparticles Synthesis and Applications
  • Anodic Oxide Films and Nanostructures

Nankai University
2008-2025

Tongji University
2015-2024

Institute of Acoustics
2009-2024

Shandong University
2024

City University of Hong Kong, Shenzhen Research Institute
2024

University of Shanghai for Science and Technology
2024

Jiangsu University
2008-2023

Tianjin International Joint Academy of Biomedicine
2023

Southeast University
2002-2022

China University of Petroleum, East China
2022

Metallic nanowires protected from oxidation and corrosion by a sheath of polyaniline have been prepared in arrays on an alumina membrane support. The cobalt wire/polyaniline tubule nanocomposite structures (see Figure), which are produced using the tubules as template for growth metal wires, potential applications such magnetic antenna materials.

10.1002/1521-4095(200101)13:2<121::aid-adma121>3.0.co;2-l article EN Advanced Materials 2001-01-01

Polyaniline nanotubes are synthesized from manganese oxide templates (see figure and cover). Manganese is used as the physical template chemical oxidative initiator for aniline polymerization. The can be removed after reaction, reduced into soluble Mn2+ ions. Many morphologies of polyaniline structures, such nanotubes, spherical tube brushes, double-shell fabricated using this method.

10.1002/adma.200602073 article EN Advanced Materials 2007-01-29

ADVERTISEMENT RETURN TO ISSUEPREVCommunication to the...Communication the EditorNEXTInverse Molecular Weight Dependence of Cloud Points for Aqueous Poly(N-isopropylacrylamide) SolutionsZhen Tong, Fang Zeng, Xu Zheng, and Takahiro SatoView Author Information Research Institute Materials Science, South China University Technology, Guangzhou 510641, Department Macromolecular Osaka University, Toyonaka, 560, Japan Cite this: Macromolecules 1999, 32, 13, 4488–4490Publication Date (Web):May 29,...

10.1021/ma990062d article EN Macromolecules 1999-05-29

We demonstrate that Ag2S nanocrystals are the bifunctional mediator for controllable growth of semiconductor heterostructures including more complicated multisegments in solution-phase, which is a new type nanomediator and quite different from metal nanoparticle catalyst. The intrinsic high Ag+ ion mobility makes not only exhibit excellent catalytic function sulfide but also act as source-host ternary heterostructures, example, Ag2S-AgInS2. semiconductors grow epitaxially or inward forming...

10.1021/ja1090996 article EN Journal of the American Chemical Society 2010-12-08

Fullerene can activate molecular hydrogen and is a novel nonmetal hydrogenation catalyst. The of aromatic nitro compounds to amino aromatics achieved on this catalyst with high conversion selectivity under 1 atmospheric pressure H(2) light irradiation at room temperature or conditions 120-160 degrees C 4-5 MPa without irradiation, which comparable the case noble metal

10.1021/ja9061097 article EN Journal of the American Chemical Society 2009-10-21

We have developed a method of controllable synthesis MgO with various morphologies by adjusting the composition and phase structure magnesium carbonate hydrate (MCH). The MCH varied from monoclinic Mg5(CO3)4(OH)2(H2O)4 to hexagonal MgCO3 changing concentration Mg2+ HCO3−; corresponding morphology ranges nanoflakes flowerlike microspheres composed layer-like rhombohedra rhombohedra. After annealing, four kinds mesoporous cubic micronano structures were obtained their original morphologies....

10.1021/cg8004147 article EN Crystal Growth & Design 2008-09-05

An acoustic metasurface with a sub-wavelength thickness can manipulate wavefronts freely by the introduction of abrupt phase variation. However, existence narrow bandwidth and low transmittance limits further applications. Here, we present broadband highly transparent based on frequency-independent generalized Snell's law pentamode metamaterials. The proposal employs gradient velocity to redirect refracted waves metamaterials improve impedance matching between background medium. Excellent...

10.1063/1.4936762 article EN Applied Physics Letters 2015-11-30

Mesoporous ZnS nanospheres is a novel heterogeneous catalyst for synthesis of 5-substituted 1H-tetrazoles from various nitriles and sodium azide with excellent catalytic performance.

10.1039/b912284b article EN Chemical Communications 2009-11-28

Highly uniform single crystal ultrathin ZnS nanowires (NWs) with 2 nm diameter and up to 10 μm length were fabricated using a catalyst-free colloidal chemistry strategy. The crystallized in hexagonal phase structure preferential growth along the direction of (001) basal plane. strong polarity plane composed Zn cations or S anions drives oriented attachment nanocrystals (NCs) this via electrostatic (or dipole) interaction. show intrinsic ferromagnetism at room temperature other unusual...

10.1021/ja2049258 article EN Journal of the American Chemical Society 2011-08-26

Given the great potential for achieving record breaking organic solar cells (OSCs), newly explored solid additives that could optimize nanoscale morphology of active layers have rapidly gained widespread attention. Herein, a new volatile additive 2,5-dichlorothieno[3,2-b]thiophene (TT-Cl) is delicately explored, fully satisfying design criteria planar conjugated skeleton with suitable molecular size, symmetrical geometry, and proper halogenation. When applied in state-of-the-art OSCs diverse...

10.1021/acsenergylett.3c01178 article EN ACS Energy Letters 2023-07-24

Phase structure control of Ni nanocrystals has been realized using a one-pot chemical route. By adjusting the growth environment and dynamic process, pure cubic hexagonal phase can be obtained (see figure). Both are shown to possess ferromagnetic properties, but magnetic properties better than those nanocrystals.

10.1002/adma.200601460 article EN Advanced Materials 2007-03-23

Nanocubes and hollow cubic microcages of FeCo alloy have been synthesized in large scale by reduction aqueous Fe2+ Co2+ with hydrazine the presence poly(ethylene glycol) cyclohexane at a relative low temperature, which were confirmed X-ray powder diffraction, transmission electron microscopy, scanning microscopy. The morphology dimensions nanocrystals could be controlled reaction conditions such as concentrations PEG-400, time, molar ratio to solution. concentration iron these particles...

10.1021/cm800518x article EN Chemistry of Materials 2008-09-10

We present a facile photochemical route to load Ag nanoparticles on hierarchical ZnO microspheres forming Ag–ZnO nanocomposites, which were characterized by X-ray powder diffraction (XRD), field emission scanning electron microscopy (FE-SEM), high resolution transmission (HR-TEM), and Raman spectroscopy. The results reveal that with average diameters of 5–6 nm are uniformly deposited the surface ZnO, there not any voids or organic linkers surfactants at interfaces between ZnO. distribution...

10.1039/c1ce06041d article EN CrystEngComm 2011-11-10

The porous Fe3O4/C microbelts (FCBs) were synthesized by simple electrospinning method, combined with carbonization of the precursor at high temperature in N2 flow. Compared α-Fe2O3 microbelt, FCBs show better cyclic performance. capacity 710 mA h g–1 is still maintained after 50 cycles. excellent performance lithium-ion batteries can be attributed to highly stable belt structure and substantial carbon matrix surrounded Fe3O4 nanoparticles. synthesis method simple, cheap, green could...

10.1021/am302753p article EN ACS Applied Materials & Interfaces 2013-02-06

In the present paper, we successfully prepared PbS microcrystals with a flower-shaped structure in simple aqueous system using microwave irradiation and systematically researched various factors affecting growth of crystals. Experimental results indicated that change molar ratio Pb2+/S2O32- could significantly influence morphology product while keeping other experimental conditions constant: decrease from 1:1 to 1:4, shapes products varied rod cuboid flower. Changing power small range...

10.1021/cg034103f article EN Crystal Growth & Design 2004-05-21

Pure perovskite LnFeO3 (Ln = La, Pr−Tb) hollow spheres with porous shell and solid Dy−Yb, Y) have been successfully synthesized via calcination of a Ln-Fe citrate complex precursor, which was prepared convenient effective hydrothermal method. The reaction parameters to obtain the Ln/Fe 1:1 can be calculated using diagram species distribution in solution. value coincident well experimental one. composition thermal decomposition processes were investigated carefully, elemental analysis,...

10.1021/cm101419w article EN Chemistry of Materials 2010-08-05

Mesoporous beta-Ni(OH)(2) synthesized by a soft template method as cathode material in nickel based battery can provide higher specific discharge capacity comparison with other micro/nanostructures.

10.1039/c0cc00155d article EN Chemical Communications 2010-01-01

We for the first time report synthesis of urchinlike BiPO4 structure composed nanorods and its photoluminescence properties. Scanning electron microscopy (SEM) images show nanorods. The X-ray powder diffraction (XRD) pattern indicates that crystal nanorod is monoclinic. high-resolution transmission (HRTEM) image Fast-Fourier-transform (FFT) reveal single-crystalline nature nanorod. formation mechanism was proposed. displays strong blue emission. Because similarities lattice constants...

10.1021/cg070642z article EN Crystal Growth & Design 2008-06-28

Abstract The solid, hollow, and tube‐in‐tube porous nanofiber structures of TiO 2 are synthesized successfully by a simple non‐coaxial electrospinning method without using complicated coaxial jet head, combined with adjusting the concentration precursor pinhole diameter head final calcination. formation mechanisms different structured fibers discussed in detail. This is facile effective, easy to scale up. Furthermore, it versatile for constructing other metal oxides such as ZrO , SiO SnO In...

10.1002/chem.201200378 article EN Chemistry - A European Journal 2012-07-16
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