Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Angel Angelov Topalov"'
Autor:
Ralf Posner, Kirsten Agnes Lill, Andreas Erbe, Karl Johann Jakob Mayrhofer, Asif Bashir, Angel Angelov Topalov, Adnan Sarfraz
Publikováno v:
ChemElectroChem. 3:1415-1421
Autor:
Aleksandar R. Zeradjanin, Michael Rohwerder, George Polymeros, Ashokanand Vimalanandan, Karl Johann Jakob Mayrhofer, Angel Angelov Topalov
Publikováno v:
Physical chemistry, chemical physics 19(26), 17019-17027 (2017). doi:10.1039/C7CP03081A
A major step in the development of (electro)catalysis would be the possibility to estimate accurately the energetics of adsorption processes related to reaction intermediates. Computational chemistry (e.g. using DFT) developed significantly in that d
Autor:
Ioannis Katsounaros, Karl Johann Jakob Mayrhofer, Angel Angelov Topalov, Nadiia Kulyk, Serhiy Cherevko, Aleksandar R. Zeradjanin
Publikováno v:
ChemCatChem. 6:2219-2223
The electrochemical production of hydrogen and hydrocarbons is considered to play a decisive role in the conversion and storage of excess amounts of renewable energy. The electrocatalysis of the oxygen evolution reaction (OER), however, faces signifi
Autor:
Karl Johann Jakob Mayrhofer, Serhiy Cherevko, Angel Angelov Topalov, Aleksandar R. Žeradjanin
Publikováno v:
Electrochemistry Communications, Vol 40, Iss, Pp 49-53 (2014)
Long-term stability of platinum catalysts still represents a massive challenge for applications in energy conversion devices like fuel cells. One of the key issues is platinum dissolution during potential perturbations in corrosive acidic environment
Autor:
Karl Johann Jakob Mayrhofer, Aleksandar R. Žeradjanin, Serhiy Cherevko, Gareth P. Keeley, Angel Angelov Topalov
Publikováno v:
Journal of The Electrochemical Society. 161:H501-H507
Temperature has a tremendous effect on the rate and amount of gold dissolution. In potentiodynamic experiments the total amount of dissolved gold increases by a factor of 4.5 when the temperature is increased from 25 to 75◦C. Moreover, the previous
Autor:
Josef C. Meier, Ioannis Katsounaros, Hans Bongard, Claudio Baldizzone, Jonathon Witte, Karl Johann Jakob Mayrhofer, Stefano Mezzavilla, Carolina Galeano, Angel Angelov Topalov, Ferdi Schüth
Publikováno v:
Beilstein Journal of Nanotechnology
Beilstein Journal of Nanotechnology, Vol 5, Iss 1, Pp 44-67 (2014)
Beilstein Journal of Nanotechnology, Vol 5, Iss 1, Pp 44-67 (2014)
Platinum and Pt alloy nanoparticles supported on carbon are the state of the art electrocatalysts in proton exchange membrane fuel cells. To develop a better understanding on how material design can influence the degradation processes on the nanoscal
Autor:
Aleksandar R. Zeradjanin, Angel Angelov Topalov, Karl Johann Jakob Mayrhofer, Ioannis Katsounaros, Josef C. Meier, Serhiy Cherevko
Publikováno v:
Chem. Sci.. 5:631-638
Platinum is one of the most important electrode materials for continuous electrochemical energy conversion due to its high activity and stability. The resistance of this scarce material towards dissolution is however limited under the harsh operation
Autor:
Angel Angelov Topalov, Karl Johann Jakob Mayrhofer, Anna Katharina Schuppert, Alfred Ludwig, Alan Savan
Publikováno v:
ChemElectroChem. 1:358-361
The transition from energy supply by fossil fuels and nuclear power to alternative solutions relies on efficient energy conversion and long-term storage possibilities. Hydrogen is a chemical-energy carrier with great potential, which can be generated
Autor:
Aparna Pareek, Michael Rohwerder, Angel Angelov Topalov, Genesis Ngwa Ankah, Serhiy Cherevko, Frank Uwe Renner
Publikováno v:
Electrochimica Acta. 85:384-392
We report an electrochemical in situ X-ray diffraction (XRD) and ex situ atomic force microscopy (AFM) study on the influence of the halide additives bromide and iodide in comparison to chloride in 0.1 M H 2 SO 4 solution on the selective dissolution
Autor:
Andrea Maria Mingers, Arndt Karschin, Karl Johann Jakob Mayrhofer, Ioannis Katsounaros, Anna Katharina Schuppert, Sebastian O. Klemm, Angel Angelov Topalov
Publikováno v:
Journal of Electroanalytical Chemistry. :50-55
The dissolution of polycrystalline rhodium in 0.1 M H2SO4 is quantitatively investigated during potential cycling and potential step experiments using a novel setup which consists of a microelectrochemical scanning flow cell (SFC) linked to an induct