نتایج جستجو برای: carbon nano structure

تعداد نتایج: 1859718  

Journal: Journal of Nanoanalysis 2017
karim Zare, Mahmood Ghoranneviss Morasa Amani Malkeshi Omid moradi Zohreh Ghorannevis

Using DC-Plasma Enhanced Chemical Vapour Deposition (PECVD) system, the impact of pure Co onthe growth of diamond-like carbon (DLC) nano-structures were investigated. In this study, Acetylene(C2H2) was diluted in H2 and used as the reaction gas and Cobalt (Co) nano-particles were used asthe catalyst. The effect of preparing Co catalyst at temperatures of 240°C and 350°C and growthconditions was...

2003
S. J. Park C. S. Lee T. Y. Kim

Frictional behavior of nano-undulated diamond-like carbon (DLC) films deposited by plasma assisted chemical vapor deposition (PACVD) process was investigated. In order to prepare the nano-undulated DLC film, a Si wafer with nano-sized Ni dots was prepared by rapid thermal annealing of Ni thin films. Since the structure of DLC film deposited by PACVD was independent of the substrate materials an...

Mahmoud Mirzaei

The electronic and structural properties of pristine and carbon doped (C-doped) boron nitride nano-ribbons(BNNRs) have been studied employing density functional theory (DFT) calculations. Total energies, gapenergies, dipole moments, and quadrupole coupling constants (qcc) have been calculated in the optimizedstructures of the investigated BNNRs. The results indicated that the stability and gap ...

2017
Mao-Xiang Jing Jing-Quan Li Chong Han Shan-Shan Yao Ji Zhang Hong-Ai Zhai Li-Li Chen Xiang-Qian Shen Ke-Song Xiao

Improving the specific capacity and electronic conductivity of TiO2 can boost its practical application as a promising anode material for lithium ion batteries. In this work, a three-dimensional networking oxygen-deficient nano TiO2-x/carbon fibre membrane was achieved by combining the electrospinning process with a hot-press sintering method and directly used as a self-standing anode. With the...

2002
T. V. Choudhary

The historical notion regarding the inability of gold to catalyze reactions has been discarded in view of recent studies, which have clearly demonstrated the high catalytic efficiency of supported nano-gold catalysts. Although nano-Au catalysts are known to catalyze a variety of reactions, the major focus has been on CO oxidation catalysis. In this work we focus on the important aspects related...

Journal: :The Journal of chemical physics 2010
Yang-Bo Zhou Zhi-Min Liao Yi-Fan Wang Georg S Duesberg Jun Xu Qiang Fu Xiao-Song Wu Da-Peng Yu

The relationship between the electrical properties and structure evolution of single layer graphene was studied by gradually introducing the gallium ion irradiation. Raman spectrums show a structural transition from nano-crystalline graphene to amorphous carbon as escalating the degree of disorder of the graphene sample, which is in correspondence with the electrical transition from a Boltzmann...

دادرس , صدیقه , دادمهر , وحید ,

  The effects of carbon nano filaments on the superconducting properties of Y-123 compound were studied. Samples were synthesized using standard solid-state reaction technique by adding CNT up to 1 wt %. The XRD data confirm the single phase orthorhombic structure for all the samples. The SEM of samples shows existence of CNTs which can powered the weak links that increase the . We obtained cha...

2013
Soheli Farhana Zahirul Alam

A sensing device is modeled and discussed in this paper. The modeling is done by using carbon nanotubes. This carbon nanotube based sensing device makes it possible produce huge amount of nano chips as a disposable cartridge for diagnostic purposes. Modeling of nano-electrode, characterization and electrochemical detection of DNA hybridization is discussed here. The results shows that the impor...

2017
Natascha M. Bergo Camila N. Signori André M. Amado Frederico P. Brandini Vivian H. Pellizari

Citation: Bergo NM, Signori CN, Amado AM, Brandini FP and Pellizari VH (2017) The Partitioning of Carbon Biomass among the Picoand Nano-plankton Community in the South Brazilian Bight during a Strong Summer Intrusion of South Atlantic Central Water. Front. Mar. Sci. 4:238. doi: 10.3389/fmars.2017.00238 The Partitioning of Carbon Biomass among the Picoand Nano-plankton Community in the South Bra...

2017
Ewa Skwarek Agnieszka Gładysz–Płaska Yuliia Bolbukh

Nano-hydroxyapatite and its modification, hydroxyapatite with the excess of phosphorus (P-HAP) and hydroxyapatite with the carbon ions built into the structure (C-HAP), were prepared by the wet method. They were studied by means of XRD, accelerated surface area and porosimetry (ASAP), and SEM. The size of crystallites computed using the Scherrer method was nano-hydroxyapatite (HAP) = 20 nm; P-H...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید