نتایج جستجو برای: nickel foam

تعداد نتایج: 48671  

Journal: :تحقیقات نظام سلامت 0
مسعود ریسمانچیان استادیار، گروه مهندسی بهداشت حرفه ای، دانشکده بهداشت،دانشگاه علوم پزشکی اصفهان،اصفهان، ایران جعفر اکبری دانشجوی کارشناسی ارشد، گروه مهندسی بهداشت حرفه ای، دانشکده بهداشت،دانشگاه علوم پزشکی اصفهان،اصفهان، ایران رضا کشاورزی دانشجوی دکترا، گروه شیمی معدنی، دانشکده شیمی، دانشگاه اصفهان، اصفهان، ایران

abstract: background: release of volatile organic compounds (vocs) in industrial and urban area have adverse effects on human health and  environment. the aim of this study was removal of gaseous toluene, as the most of pollutants among vocs, by using of tio 2 nanoparticles coated on nickel foam substrate. methods: tio 2 nanoparticles prepared by sol gel method and coated on nickel foam. morpho...

2017
Houzhao Wan Lang Li Jun Zhang Xiang Liu Hanbin Wang Hao Wang

A three dimensional hierarchical nanostructure composed of nickel nanowires and porous NiCo2O4 nanorods arrays on the surface of nickel foam is successfully fabricated by a facile route. In this structure, the nickel nanowires are used as core materials to support high-pseudocapacitance NiCo2O4 nanorods and construct the well-defined NiCo2O4 nanorods shell/nickel nanowires core hierarchical str...

Open pore metallic foams can be used for high temperature, high performance heat exchanger due to their high gas permeability and heat conductivity provided that skins properly attach to the foam’s struts on the surface. In the current study, a novel process was successfully developed to fill pores on the surface of the foam sheet in order to deposit skin on the foam specimens by thermal sprayi...

Journal: :Journal of environmental sciences 2007
Hai Hu Wen-jun Xiao Jian Yuan Jian-wei Shi Ming-xia Chen Wen-feng Shang Guan

Anatase TiO2 films were successfully prepared on foam nickel substrates by sol-gel technique using tetrabutyl titanate as precursor. The characteristics of the TiO2 films were investigated by XPS, XRD, FE-SEM, TEM and UV-Vis absorption spectra. The photocatalytic activities of TiO2 films were investigated by photocatalytic degradation reactions of gaseous acetaldehyde, an indoor pollutant, unde...

Journal: :Nanoscale 2014
Haifu Huang Lianqiang Xu Yanmei Tang Shaolong Tang Youwei Du

Here we report a simple strategy to prepare three-dimensional graphene gel coated on nickel foam for supercapacitor applications by a simple 'dipping and drying' process. The supercapacitors based on three-dimensional graphene gel (G-gel@NF-1) exhibited high rate capability of 152 F g(-1) at 0.36 A g(-1) and 107 F g(-1) at 90.9 A g(-1), good cycle stability with capacitance retention of 89% aft...

2017
Jian Zhang Tao Wang Pan Liu Zhongquan Liao Shaohua Liu Xiaodong Zhuang Mingwei Chen Ehrenfried Zschech Xinliang Feng

Various platinum-free electrocatalysts have been explored for hydrogen evolution reaction in acidic solutions. However, in economical water-alkali electrolysers, sluggish water dissociation kinetics (Volmer step) on platinum-free electrocatalysts results in poor hydrogen-production activities. Here we report a MoNi4 electrocatalyst supported by MoO2 cuboids on nickel foam (MoNi4/MoO2@Ni), which...

Journal: :Nanoscale 2013
Hanyu Wang Gongming Wang Yichuan Ling Fang Qian Yang Song Xihong Lu Shaowei Chen Yexiang Tong Yat Li

The structure and electrical conductivity of anode play a significant role in the power generation of microbial fuel cells (MFCs). In this study, we developed a three-dimensional (3D) reduced graphene oxide-nickel (denoted as rGO-Ni) foam as an anode for MFC through controlled deposition of rGO sheets onto the nickel foam substrate. The loading amount of rGO sheets and electrode surface area ca...

2016
Shan Qiu Shanwen Xu Guangming Li Jixian Yang

The synergistic effect of ultrasound, the heterogeneous Fenton reaction and photocatalysis was studied using a nickel foam (NF)-supporting TiO₂ system and rhodamine B (RhB) as a target. The NF-supporting TiO₂ system was prepared by depositing TiO₂ on the skeleton of NF repeatedly and then calcining it. To optimize the conditions and parameters, the catalytic activity was tested in four systems ...

Journal: :Physical chemistry chemical physics : PCCP 2012
Jung-Soo Lee Hyo-Jin Ahn Jong-Chul Yoon Ji-Hyun Jang

We report a robust and direct route to fabricate a three-dimensional nano-foam of few-layer graphene (3D-NFG) with large area coverage via a chemical vapor deposition (CVD) technique. Pyrolysis of polymer/nickel precursor film under a hydrogen environment, simply prepared by spin-coating, leads to the creation of nano-foam in the film and the reduction process of nickel ions. Carbonized-C and t...

Journal: :Bulletin of the Japan Institute of Metals 1988

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