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Synthesis of papercut-like carbon sheets by a simple pyrolysis method Lingling Zhua, Peipei Xiaob and Yitai Qianc* Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China azll@mail.ustc.edu.cn, bxiaopp@mail.ustc.edu.cn, cytqian@ustc.edu.cn Keywords: papercut-like carbon sheets, carbon materials, pyrolysis, synthesis Abstract.
More and more studies reported that carbon can exist as many novel structures, such as carbon cubes [2], carbon micro-trees [3], carbon cones [4], flower-like carbon [5], carbon nanoflasks and carbon nanocontainers [6].
To the best of our knowledge, there are few reports so far on the synthesis of such carbon structures.
The structure and morphology of the as-obtained product were further observed by SEM and TEM.
The lower thermal stability of paper-cut carbon sheets s may be due to the nanometer hollow structure of the sample, which makes the ratio of the surface to volume remarkably large.

Chemical Reagents Retrieve/Storage Device Integral Structure of Retrieve/Storage Device.
Internal Structure of One Storage Unit.
The structure of one unit cabinet is shown in figure 1. 1-Weight sensor, 2-Unit cabinet, 3-Spring, 4-Switch, 201-Double side panels, 202-Reagent bottle, 203- Electromagnetic lock, 204-A hole in the side panel, 205-Bottom panel Fig. 1 Basic Structure of a Unit Cabinet When an experimenter chooses a chemical reagent on PC, the on/off signal is transferred to Single-chip Microcomputer.
Vol. 14(1992), p. 63 [2] Isabel Serra, Aurora Silva, in: Electronic Journal of Environmental, Agricultural and Food Chemistry.

Horizontal Patterns of Single Wall Carbon Nanotubes by Simple Filtration Method Munir Mohammad1, Mohammad Bilal Khan1,a, Zaffar M.Khan1, Gabriel Cavalli 2, Damitha Adhikari3, Ravi Silva3 1School of Chemical and Materials Engineering (SCME), National University of Sciences and Technology (NUST), H-12, Islamabad, Pakistan. 2Department of Chemistry, University of Surrey, UK 3Department of Advanced Technology Institute (ATI), Universty of Surrey, UK abilalkhan-ccems@nust.edu.pk Keywords: Horizontal alignment, Vertical alignment, Functionalized SWNTs, Octadecyl amine (ODA), Filtration.
Their high aspect ratios also make them strong candidate for aligned nano structured materials [1-5].
Anisotropic structure of CNTs requires their alignment or patterning in a manner that these properties can be efficiently exploited to fabricate nano structured materials for variety of applications in the electronic devices and Micro electro mechanical systems [1].
These horizontal patterns have many potential applications in electronics and other nano structured materials.

Usually, ball milling is an effective method to disperse the CNTs in metal matrix, but it may damage the structure and integrity of CNTs [7,8,9], which perhaps degrade the enhancing effect of CNTs on the composites.
Mg and its alloys are more and more frequently used in engineering structures owing to their light weight and high specific strength, and CNTs is regarded as the most ideal reinforcement for Mg matrix.
The PHILIPS TECNAI G2 F20 transmission electron microscope (TEM) was used to characterize the structure of CNTs.
It is visible from Fig. 2(a) that the tortuous CNTs with the average diameter of 10-20 nm have a tubular structure.
Fugetsu: Materials Chemistry and Physic.

Hydrazine hydrate was purchased from Shanghai Aibi Chemistry Preparation Co., Ltd.
Fig.1a shows a representative TEM image obtained from the as-prepared graphene, which demonstrates its wrinkled paper-like structures.
Fig. 2 FT-IR (a) and XRD (b) of GO and ZrO2/G Pore structure parameters of ZrO2/G.
The pore structure parameters of the samples are shown in Table 1.
Pore structure parameters of ZrO2/G and ZrO2 Sample SBET/(m2·g-1) Pore volume/(cm3·g-1) ZrO2/G 165 0.11 ZrO2 110 0.07 Summary In conclusion, we present an easy and effective method to synthesize ZrO2/graphene nanocomposite.

Preparation and Photoluminescence of In2O3 Nanofibers by Electrospinning Yawei Hua, Huirong He and Yangmin Ma Key Laboratory of Auxiliary Chemistry Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology, Xi’an, Shaanxi 710021, P.
The structure, morphologies and optical properties of In2O3 nanofibers were characterized by X-ray diffraction, scanning electron microscopy (SEM) and room temperature photoluminescence spectrum.
The phase and the crystallographic structure of the In2O3 nanofibers were charactered by an X-ray diffractometer (XRD) with Cu Kα radiation (λ = 0.154 nm) at a scanning rate of 8°·min-1 ranging from 10º to 80º.
The surface topography and structures of the In2O3 nanofibers were characterized by a scanning electron microscope (SEM).
The peaks at 2θ values of 21.55º, 30.65º, 35.48º, 37.64º, 41.80º, 45.54º, 51.04º, 55.90º and 60.84º in pattern can be well indexed to diffraction from the (211), (222), (400), (411), (211), (431), (400), (611) and (622) of a pure cubic structure of In2O3, which is in good agreement with the standard date file (JCPDS Card File, 06-0416).

Effect of pH Value on Preparation of La2CuO4 Microcrystallites Synthesized by Sol-Gel Process LI Yi-fenga, HUANG Jian-fengb, CAO Li-yunc and WU Jian-pengd Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science & Technology, Xi’an Shaanxi, 710021, China asustlyf@163.com, bhuangjf@sust.edu.cn (corresponding author), ccaoliyun@sust.edu.cn, cwujianpeng@sust.edu.cn Keywords: La2CuO4; PH value; Sol-Gel process Abstract.
Introduction La2CuO4 is a A2BO4-type mixed oxide with perovskite-like structure [1].
It can be found that the particle morphology is about sphere-like structure, and the particle size first increases and then decreases with the increase of the pH value.
Combining with Fig. 3, we can see that grains distribute uniformly and size is about 100–120nm with orthorhombic crystal structure when the pH value is controlled near 2.0.
The obtained La2CuO4 crystallites are orthogonal phase of perovskite-like structure.

The crystalline structure of the ZnO film was studied by X-Ray diffraction using XRD-6000Shemadzu system.
The spectrum indicates that the ZnO film is a polycrystalline structure.
The quenching of the broad band intensity around 540 nm may be attributed to the improvement of the crystallization structure of the ZnO film deposited on the nanospikes silicon layer.
The formation of the heterojunction structure is referred to the difference in energy gap between the ZnO and Porous-silicon .The ideality factor of the formed junction was determined from the plot of lnI-V following the relation: And it was found to be about 1.1 for the diffusion current region and 3.3 for the recombination current region as shown in Figure7.
Materials Chemistry and Physics, 80 (2), 438 (2003)

As a semicrystalline polymer with several crystalline forms, the physical and mechanical properties of PA11 depend on the morphology, crystalline structure and degree of crystallization.
Experimental Materials Aminopropyl functionalized and octaammonium funtionalized POSS were purchased from Hybrid Plastics Ltd and their chemical structures are shown in Fig. 1(a) and (b).
Chemical structures of aminopropyl functionalized (a) and octaammonium funtionalized (b) POSS.
The chemical structures of aminopropyl and octaammonium functionalized POSS were confirmed by FT-IR measurements.
Tensile modulus (GPa) Ultimate tensile strength (MPa) Flexural modulus (GPa) Ultimate flexural strength (MPa) Heat distortion temperature (oC) Neat PA 11 1.2 ± 0.1 40.6 ± 1.7 2.0 ± 0.3 50.1 ± 0.9 46 ± 2 PA 11+4 wt% amine-POSS modified clay 1.5 ± 0.1 43.0 ± 1.3 2.5 ± 0.2 59.5 ± 0.7 57 ± 3 PA 11+4 wt% ammonium- POSS modified clay 2.8 ± 0.3 53.0 ± 0.8 3.9 ± 0.1 80.5 ± 0.4 82 ± 4 PA 11+4 wt% guanidinium- POSS modified clay 3.3 ± 0.2 58.1 ± 1.2 4.0 ± 0.3 83.3 ± 0.5 93 ± 3 It is also observed the mechanical properties of PA11/clay nanocomposites depend on the chemistry of modified clay.

Shelter usually used the shield structure which isolation skinned inside and outside double and padded polyurethane foam in the middle.
In practice, when the frequency is up 100kHz, electromagnetic shielding performance of double aluminum and the steel to aluminum double shield structure was basically the same, so we could select the shelter body of 1.2~1.5mm double aluminum.
For example, a electronic shelter selected the shielding structure with 1.2mm double aluminum in the band 100kHz~18GHz, the Shielding effectiveness reached 60dB.
When the frequency below 100KHz, 1.2~1.5mm steel to aluminum double shield structure was needed, and strictly ensure the inner steel topological closure, and the steel sheet Fe/Ep.Cu processing.
Table 2 The metal combinations which were prone Electrochemical corrosion material material Aluminum Tinned steel Low chromium stainless steel Copper and its alloys Nickel-plated steel Aluminum — — — 0.65 0.75 Zinc and its alloys — — 0.75 0.85 0.95 Chrome- plated steel — — — — 0.65 Lead — — — — — Steel tin zinc — — 0.7 0.8 0.9 Conclusions Electromagnetic shielding was a strong practical engineering technology, related to the electromagnetic theory, metal materials and chemical chemistry.