نتایج جستجو برای: ni co zno nano composite

تعداد نتایج: 553807  

2014
Viruntachar Kruefu Anurat Wisitsoraat Adisorn Tuantranont Sukon Phanichphant

In this work, a new poly (3-hexylthiophene):1.00 mol% Au-loaded zinc oxide nanoparticles (P3HT:Au/ZnO NPs) hybrid sensor is developed and systematically studied for ammonia sensing applications. The 1.00 mol% Au/ZnO NPs were synthesized by a one-step flame spray pyrolysis (FSP) process and mixed with P3HT at different mixing ratios (1:1, 2:1, 3:1, 4:1, and 1:2) before drop casting on an Al2O3 s...

   Electrochemical performance of binary and ternary oxides composed of Ni, Co and Cu produced over a 3-dimensional substrate of vertically aligned carbon nano-tubes (VACNT) as electrodes for aqueous energy sources, is reported and compared in this paper. VACNTs were fabricated inside a DC-plasma enhanced chemical vapor deposition chamber and composite materials fabricated by thermal decomp...

2012
Zhen Zheng Ning Li Chun-Qing Wang De-Yu Li Fan-Yu Meng Yong-Ming Zhu Qing Li Gang Wu

NieS/CeO2 electrodes have been prepared by a composite electrodeposition technique using nickel sulfaminate bath containing suspended microor nano-sized CeO2 particles. The composite electrodes exhibit a high activity for the hydrogen evolution reaction (HER) in alkaline solutions, most likely due to the synergistic effects between Ni and CeO2, as well as the increased surface area of the elect...

A. Mahmoudi G. Khanbabaei M. Asghari, M. Namdari V. Zargar

A PEBAX-nano zeolite X mixed matrix membrane was fabricated and operationally characterized using single gas (CO2) permeation. X-ray diffraction (XRD) analysis was used to study the arrangement of polymer chains of mixed matrix membrane. The membranes were characterized by scanning electron microscopy (SEM) to study cross-sectional morphology. The single gas permeability were carried...

2016
Boris Borisovich Straumal Svetlana G Protasova Andrei A Mazilkin Eberhard Goering Gisela Schütz Petr B Straumal Brigitte Baretzky

The possibility to attain ferromagnetic properties in transparent semiconductor oxides such as ZnO is very promising for future spintronic applications. We demonstrate in this review that ferromagnetism is not an intrinsic property of the ZnO crystalline lattice but is that of ZnO/ZnO grain boundaries. If a ZnO polycrystal contains enough grain boundaries, it can transform into the ferromagneti...

Journal: :Physical chemistry chemical physics : PCCP 2015
Biao Zhao Gang Shao Bingbing Fan Wanyu Zhao Rui Zhang

A novel hierarchical heterostructure of Ni microspheres-CuO nano-rices was fabricated using a simple two-step process. The CuO rices were densely deposited on the surfaces of Ni microspheres. The phase purity, morphology, and structure of composite heterostructures are characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), energy dispersive X-ray spectros...

اشرفی‌زاده, فخرالدین, خرسند, شهره, رئیسی, کیوان,

Super-hydrophobic nickel and nickel-cobalt alloy coatings with micro-nano structure were successfully electrodeposited on copper substrates with one and two steps electrodeposition. Surface morphology, wettability and corrosion  resistance were characterized by scanning electron microscopy, water contact angle measurements, electrochemical impedanc spectroscopy (EIS) and potentiodynamic...

Ch. Dehghanian, N. Eslami Rad*,

Abstract: Electroless Nickel (EN) composite coatings embedded with Cr2O3 and/or MoS2 particles were deposited to combine the characters of both Cr2O3 and MoS2 into one coating in this study. The effects of the co-deposited particles on corrosion behavior of the coating in 3.5% NaCl media were investigated. The results showed that both Ni-P and Ni-P composite coatings had significant improvement...

Journal: :Journal of skin and stem cell 2023

Background: Nano-scaffolds loaded with bioactive compounds such as ZnO nanoparticles (ZnO-NPs), tissue-engineered artificial skin grafts, can be a suitable substitute for extracellular matrix and greatly contribute to accelerating chronic wound treatment by decreasing the chance of bacterial infection. Methods: Silk fibroin nanofiber was fabricated using electrospinning three-dimensional porous...

Journal: :journal of nanostructures 0
amin ebadi department of chemistry, kazerun branch, islamic azad university sanaz shojaei department of chemistry, kazerun branch, islamic azad university

unsubstituted phthalocyanines of co, fe and mn supported on zinc oxide nanoparticles were prepared and were well characterized with x-ray diffraction (xrd) and scanning electron microscopy (sem). the oxidation of alcohols with tert-butylhydroperoxide (tbhp), in the presence of metallophthalocyanines (mpc) supported on zinc oxide nanoparticles was investigated. these mpc/zno nanocomposites were ...

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