Klara Hernadi

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Publications associées (33)

Photocurrent generated by photosynthetic reaction centers/carbon nanotube/ITO bio-nanocomposite

László Forró, Arnaud Magrez, Klara Hernadi, Endre Horvath

Springer2013

Charge stabilization by reaction center protein immobilized to carbon nanotubes functionalized by amine groups and poly(3-thiophene acetic acid) conducting polymer

László Forró, Arnaud Magrez, Klara Hernadi, Endre Horvath

A large number of studies have indicated recently that photosynthetic reaction center proteins (RC) bind successfully to nanostructures and their functional activity is largely retained. The major goal of current research is to find the most efficient syst ...

Wiley-V C H Verlag Gmbh2012

Manufacturing and investigations of i-butane sensor made of SnO2/multiwall-carbon-nanotube nanocomposite

László Forró, Arnaud Magrez, Klara Hernadi

Nanocomposite SnO2/multiwall-carbon-nanotubes were prepared by the sol-gel method. The morphology of prepared nanocomposite powder was investigated by scanning electron microscopy. Energy-dispersive X-ray and X-ray diffraction analyses were carried out, th ...

Elsevier Science Sa2012

Photosynthetic reaction center protein in nanostructures

László Forró, Arnaud Magrez, Klara Hernadi, Krisztina Nagy

Photosynthetic reaction center (RC) is one of the most important proteins, because it is Nature's solar battery converting light energy into chemical potential in the photosynthetic membrane assuring conditions for carbon reduction in cells. Although it is ...

2011

Photocatalytic activity of TiO2/SWCNT and TiO2/MWCNT nanocomposites with different carbon nanotube content

László Forró, Arnaud Magrez, Klara Hernadi

With different mass ratios, titanium dioxide/carbon nanotube (0.1-10 wt% CNTcontent) nanocomposites were prepared with the aid of ultrasonication method. The structures of the various TiO2/CNT nanocomposites were characterized by electron microscopy (scann ...

2011

Long term stabilization of reaction center protein photochemistry by carbon nanotubes

László Forró, Arnaud Magrez, Klara Hernadi, Endre Horvath

The long term stability and the redox interaction between single walled carbon nanotubes (SWNTs) and photosynthetic reaction center proteins (RCs) purified from purple bacterium Rhodobacter sphaeroides R-26 in the SWNT/RC complex has been investigated. The ...

2011

Controllable synthesis and characterization of alumina/MWNT nanocomposites

László Forró, Klara Hernadi

The aim of this work is to develop a controllable synthesis pathway which produces a stable alumina layer on the surface of carbon nanotubes by impregnation method. Precursor compounds such as aluminium isopropoxide and aluminium-acetylacetonate were used ...

2011

Preparation of homogeneous titania coating on the surface of MWNT

László Forró, Jin Won Seo, Klara Hernadi, Duncan Thomas Lindsay Alexander

Preparation of homogeneous and stable inorganic coatings on the surface of multi-wall carbon nanotubes (CNTs) was studied. Precursor compounds such as titanium (IV) bromide and titanium (IV) chloride were used to cover the surface of CNTs under either solv ...

Elsevier2011

Fabrication of homogeneous titania/MWNT composite materials

László Forró, Jin Won Seo, Arnaud Magrez, Klara Hernadi

MWNT/titania nanocomposites were prepared by an impregnation method and subsequent heat treatment at 400 degrees C. Precursor compounds such as titanium (IV) propoxide and titanium (IV) ethoxide were used to cover the surface of CNTs under solution conditi ...

Elsevier2011

Catalyst preparation with ball milling for catalytic synthesis of coiled carbon nanotubes

László Forró, Klara Hernadi

The aim of our experiments was the production of helically coiled carbon nanotubes selectively. The influence of catalytic particles prepared by ball milling (dry and wet method) was investigated on the growth. of coiled carbon nanotubes under conditions. ...

2010

Synthesis and mechanical properties of carbon nanotubes produced by the water assisted CVD process

László Forró, Arnaud Magrez, Richard Meunier, Martial Duchamp, Klara Hernadi, Juan Carlos Andresen, Rita Smajda

Catalyst activity during the carbon nanotubes (CNTs) growth by chemical vapor deposition (CVD) is enhanced when water, a weak oxidizer, is introduced together with the carbon source. The height as well as the CNTs density can be controlled by fine-tuning t ...

2009

Growth of carbon nanotubes with alkaline earth carbonate as support

László Forró, Csilla Mikó, Jin Won Seo, Arnaud Magrez, Klara Hernadi

Multiwalled carbon nanotubes (MWCNTs) were grown by chemical vapor deposition by applying C2H2 fluxed over Fe1-xCox catalyst supported by alkaline earth carbonate. Detailed investigations of the chemical process occurring prior and during the growth allowe ...

2005

Elastic modulus of multi-walled carbon nanotubes produced by catalytic chemical vapour deposition

László Forró, Andrzej Kulik, Andras Kis, Jin Won Seo, Branimir Lukic, Kyumin Lee, Klara Hernadi

Springer Verlag2005

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